Frame for portable electrical energy storage cells
19 claims: 3 independent, 16 dependent
- 1複数の個々の電気エネルギー貯蔵セルを含む携帯型電気エネルギー貯蔵装置であって、 複数のレセプタクルを含むフレームであって、前記複数のレセプタクルの少なくとも1つが、前記複数の個々の電気エネルギー貯蔵セルの1つの端部を受け入れ、フレームは第1の材料から形成される、フレームと、 第2の材料から形成されるキャップであって、前記複数のレセプタクルの前記少なくとも1つに隣接する前記フレームを覆い、前記複数のレセプタクルの前記少なくとも1つ内に受け入れられた前記複数の個々の電気エネルギー貯蔵セルの前記1つの前記端部を覆い、前記第2の材料は、前記第1の材料とは異なる、キャップとを備え、 前記フレームが、さらに、前記複数のレセプタクルの前記少なくとも1つと、別の個々の電気エネルギー貯蔵セルの端部を受け入れるための前記複数のレセプタクルの別の隣接する1つとの間を延びる通路を備え、前記第2の材料は、前記通路内に配設される、携帯型電気エネルギー貯蔵装置。
- 2前記複数のレセプタクルの前記少なくとも1つが、前記複数の個々の電気エネルギー貯蔵セルの1つの端部を受け入れるための第1のレセプタクルを含み、前記第1のレセプタクルは、前記フレームの第1の壁部分および前記フレームの第2の壁部分によって囲まれ、前記フレームの前記第2の壁部分は、前記複数の個々の電気エネルギー貯蔵セルの1つの端部を受け入れるための第2のレセプタクルの一部分を囲み、前記フレームの前記第2の壁部分は、前記第1のレセプタクルと前記第2のレセプタクルとの間を延びる 前記 通路を含み、前記フレームの前記第2の壁部分は、前記フレームの前記第1の壁部分よりも熱エネルギー移動に対する耐性が小さい、請求項1に記載の携帯型電気エネルギー貯蔵装置。
- 3前記フレームの前記第2の壁部分の厚さが、前記フレームの前記第1の壁部分の厚さよりも小さい、請求項2に記載の携帯型電気エネルギー貯蔵装置。
- 4前記第1のレセプタクルと前記第2のレセプタクルとの間を延びる前記通路の少なくとも一部分内に配置され 、前記第2の材料から形成された プラグをさらに備える、請求項2に記載の携帯型電気エネルギー貯蔵装置。
- 5前記プラグが、前記第2の壁部分を含む材料よりも熱エネルギー移動に対する耐性が大きい材料を含む、請求項4に記載の携帯型電気エネルギー貯蔵装置。
- 6前記フレームが、前記フレームの周囲に位置する複数の周囲レセプタクルをさらに備え、前記周囲レセプタクルの各々は、周壁によって囲まれ、各周壁は、前記周壁を通って延びる通路が存在しないことを特徴とする、請求項1に記載の携帯型電気エネルギー貯蔵装置。
- 7前記複数のレセプタクルの前記少なくとも1つが、第1の壁部分および第2の壁部分を含み、前記第2の壁部分は、熱エネルギー移動に対する耐性が前記第1の壁部分と等しい、または前記第1の壁部分を上回るセクションと、前記第1の壁部分と等しい、または前記第1の壁部分を上回る熱エネルギー移動に対する耐性を有する前記第2の壁部分の前記セクションよりも、熱エネルギー移動に対する耐性が小さいセクションとを含む、請求項1に記載の携帯型電気エネルギー貯蔵装置。
- 8前記第1の壁部分と、前記第1の壁部分と等しい、または前記第1の壁部分を上回る熱エネルギー移動に対する耐性を有する前記第2の壁部分の前記セクションより熱エネルギー移動に対する耐性が小さい前記フレームの前記第2の壁部分の前記セクションとが、同じ材料を含む、請求項7に記載の携帯型電気エネルギー貯蔵装置。
- 9携帯型電気エネルギー貯蔵装置内のアレイ内に複数の個々の電気エネルギー貯蔵セルを保持するためのフレームを形成する方法であって、 複数のレセプタクルの少なくとも1つは、前記複数の個々の電気エネルギー貯蔵セルの1つの端部を受け入れるためのものであり、前記フレームは第1の材料から形成される、前記複数のレセプタクルを含むフレームを提供することと、 前記複数のレセプタクルの前記少なくとも1つ内に、前記複数の個々の電気エネルギー貯蔵セルの1つの前記端部を受け入れることと、 前記複数のレセプタクルの前記少なくとも1つに隣接する前記フレーム上にわたって、および前記複数のレセプタクルの前記少なくとも1つ内に受け入れられた前記複数の個々の電気エネルギー貯蔵セルの1つの前記端部上にわたって、第1の材料とは異なる第2の材料のキャップを形成することと、 前記複数のレセプタクルの前記少なくとも1つと、別の個々の電気エネルギー貯蔵セルの端部を受け入れるための前記複数のレセプタクルの別の隣接する1つとの間を延びる通路を形成することとを含み、前記第2の材料は、前記通路内に配設される、方法。
- 10前記複数のレセプタクルの前記少なくとも1つが、第1のレセプタクルを含み、前記第1のレセプタクルは、前記フレームの第1の壁部分および前記フレームの第2の壁部分によって囲まれ、前記フレームの前記第2の壁部分は、個々の電気エネルギー貯蔵セルの端部を受け入れるための第2のレセプタクルの一部分を囲み、前記フレームの前記第2の壁部分は、前記フレームの前記第1の壁部分よりも熱エネルギー移動に対する耐性が小さく、前記方法は、 前記フレームの前記第2の壁部分内に、前記第1のレセプタクルと前記第2のレセプタクルとの間を延びる 前記 通路を形成することと、 前記第2の材料から形成された プラグを前記通路内に配設することとをさらに含む、請求項9に記載の方法。
- 11前記プラグが、前記第2の壁部分を含む材料よりも熱エネルギー移動に対する耐性が大きい材料を含む、請求項10に記載の方法。
- 12前記フレームの前記第1の壁部分と、前記フレームの前記第2の壁部分とは、同じ材料を含む、請求項10に記載の方法。
- 13携帯型電気エネルギー貯蔵装置内のアレイ内に複数の個々の電気エネルギー貯蔵セルを保持するためのフレームであって、 複数のレセプタクルであって、前記複数のレセプタクルの少なくとも1つは、前記複数の個々の電気エネルギー貯蔵セルの1つの端部を受け入れ、前記フレームは第1の材料から形成される、レセプタクルと、 第2の材料から形成されるキャップであって、前記複数のレセプタクルの前記少なくとも1つに隣接する前記フレームを覆い、前記複数のレセプタクルの前記少なくとも1つ内に受け入れられた前記1つの電気エネルギー貯蔵セルの前記端部を覆い、前記第2の材料は前記第1の材料とは異なる、キャップとを備え、 前記フレームが、さらに、前記複数のレセプタクルの前記少なくとも1つと、別の電気エネルギー貯蔵セルの端部を受け入れるための前記複数のレセプタクルの別の隣接する1つとの間を延びる通路を備え、前記第2の材料は前記通路内に配設される、フレーム。
- 14前記複数のレセプタクルの前記少なくとも1つが、前記複数の個々の電気エネルギー貯蔵セルの1つの端部を受け入れるための第1のレセプタクルを含み、前記第1のレセプタクルは、前記フレームの第1の壁部分および前記フレームの第2の壁部分によって囲まれ、前記フレームの前記第2の壁部分は、前記複数の個々の電気エネルギー貯蔵セルの1つの端部を受け入れるための第2のレセプタクルの一部分を囲み、前記フレームの前記第2の壁部分は、前記第1のレセプタクルと前記第2のレセプタクルとの間を延びる 前記 通路を含み、前記フレームの前記第2の壁部分は、前記フレームの前記第1の壁部分よりも熱エネルギー移動に対する耐性が小さい、請求項13に記載の携帯型電気エネルギー貯蔵装置内のアレイ内に複数の個々の電気エネルギー貯蔵セルを保持するためのフレーム。
- 15前記フレームの前記第2の壁部分の厚さが、前記フレームの前記第1の壁部分の厚さよりも小さい、請求項14に記載の携帯型電気エネルギー貯蔵装置内のアレイ内に複数の個々の電気エネルギー貯蔵セルを保持するためのフレーム。
- 16前記第1のレセプタクルと前記第2のレセプタクルとの間を延びる前記通路の少なくとも一部分内に配置され 、前記第2の材料から形成された プラグをさらに備える、請求項14に記載の携帯型電気エネルギー貯蔵装置内のアレイ内に複数の個々の電気エネルギー貯蔵セルを保持するためのフレーム。
- 17前記プラグが、前記第2の壁部分を含む材料よりも熱エネルギー移動に対する耐性が大きい材料を含む、請求項16に記載の携帯型電気エネルギー貯蔵装置内のアレイ内に複数の個別の電気エネルギー貯蔵セルを保持するためのフレーム。
- 18前記複数のレセプタクルの前記少なくとも1つが、第1の壁部分および第2の壁部分を含み、前記第2の壁部分は、熱エネルギー移動に対する耐性が前記第1の壁部分と等しい、または前記第1の壁部分を上回るセクションと、前記第1の壁部分と等しい、または前記第1の壁部分を上回る熱エネルギー移動に対する耐性を有する前記第2の壁部分の前記セクションよりも、熱エネルギー移動に対する耐性が小さいセクションとを含む、請求項13に記載の携帯型電気エネルギー貯蔵装置内のアレイ内に複数の個別の電気エネルギー貯蔵セルを保持するためのフレーム。
- 19前記第1の壁部分と、前記第1の壁部分と等しい、または前記第1の壁部分を上回る熱エネルギー移動に対する耐性を有する前記第2の壁部分の前記セクションより熱エネルギー移動に対する耐性が小さい前記フレームの前記第2の壁部分の前記セクションとが同じ材料を含む、請求項18に記載の携帯型電気エネルギー貯蔵装置内のアレイ内に複数の個別の電気エネルギー貯蔵セルを保持するためのフレーム。
Independent claims19
75 paragraphs, as filed
The present disclosure generally comprises a portable electrical energy storage cell containing a plurality of portable electrical energy storage cells, including a frame for holding individual portable electrical energy storage cells in an array within the portable electrical energy storage cell apparatus. Regarding storage equipment.
Batteries, such as lithium-ion batteries, are known to charge more energy into smaller, lighter units. Lithium-ion batteries are widely used in powering portable electronic devices such as mobile phones, tablets, laptops, power tools and other high current devices. Its low weight and high energy density make lithium-ion batteries attractive for use in hybrid and fully electric vehicles.
A potential drawback of lithium-ion batteries is their electrolyte solution. Unlike other types of batteries in which the electrolyte consists of an aqueous solution of acid or base, the electrolyte in the lithium ion cell is typically an organic solvent such as ethylene carbonate and ethylmethyl carbonate (which can be flammable). Consists of the lithium salt inside.
In normal operation, when the lithium-ion battery is charged, the lithium ions in the electrolyte solution move from the cathode through a thin porous polymer separator and are inserted into the anode. Charge-balanced electrons also move to the anode, but travel through an external circuit inside the charger. During discharge, the reverse process occurs and electrons flow through the device being powered.
In very rare circumstances, short circuits inside or outside the lithium-ion battery can occur. For example, if an electric device containing a lithium-ion battery is subjected to a severe impact or collision, a rift may occur in the battery, resulting in a short circuit. Due to the thin nature of the polymer separator, micrometer-sized metal particles generated during cutting, pressing, grinding, or other battery manufacturing steps can be present or penetrate into the battery cell. These small metal particles can accumulate and eventually form a short circuit between the anode and cathode. Such short circuits should be avoided as the cathode may react with the electrolyte solution to decompose the electrolyte solution and create temperatures that can generate heat and reactive gases such as hydrocarbons. Typically, at normal operating temperatures, the lithium-ion battery is very stable, but above a certain temperature, the stability of the lithium-ion battery becomes difficult to predict, and at high temperatures, inside the battery case. The chemical reaction produces gas, which increases the internal pressure inside the battery case. These gases can also react with the cathode to release more heat and create a temperature in or near the battery that can ignite the electrolyte in the presence of oxygen. When the electrolyte burns, a small amount of oxygen is produced, which can facilitate the combustion of the fuel. At some point, the pressure inside the battery case rises, resulting in the battery case bursting. Leaked gas may ignite and burn. Some battery manufacturers design cells so that in the unlikely event that the cell ruptures and ignites, the gas that facilitates combustion escapes from the cell in place and in a given direction. For example, a battery cell in the form of a conventional AAA or AA cell can be designed to exhaust from the terminations located at each end of the cell near the cathode and anode.
In applications where only a single lithium-ion battery is used, the possibility of battery failure and combustion creates an undesired situation. This situation becomes more serious when multiple lithium-ion batteries are deployed in the form of battery banks or modules. Combustion that occurs when one lithium-ion battery fails can produce a local temperature that is higher than the temperature at which the other lithium-ion battery is normally stable, which causes these other batteries to fail and burst. , Exhaust the gas, which then ignites and burns. Therefore, the rupture of a single cell in a bank of lithium-ion cells can cause other cells in the bank to rupture, igniting and discharging the burning gas. Fortunately, lithium-ion batteries have proven to be very safe, and lithium-ion battery failures and consequent bursts are extremely rare. Nonetheless, efforts have been made to reduce the risk of rupture and the ignition of gas escaping from ruptured lithium-ion batteries. For example, the development of materials used for cathodes has produced lithium-based cathode materials that are more heat resistant than cathodes made from the widely used lithium cobalt oxide. These recently developed materials can be better in heat resistance, but this advantage comes at a considerable price. For example, a lithium manganese oxide cathode has a lower charge capacity than a lithium cobalt oxide and still decomposes at high temperatures. Lithium iron phosphate cathodes are particularly well tolerated by thermal abuse, but their working voltage and volume-based energy densities are lower than lithium cobalt oxide cathodes.
Other efforts have focused on polymer separators and their design. For example, as an effort to provide some protection against mild overheating, it has been proposed to utilize a polymer separator with a layer of polyethylene sandwiched between two layers of polypropylene. As the temperature of the cell begins to approach a temperature at which the stability of the cell becomes unpredictable, the polyethylene melts and closes the pores in the polypropylene. When the polypropylene pores are closed with polyethylene, the diffusion of lithium is blocked, effectively blocking the cell before it ignites. Other efforts have focused on the use of polymer separators, which have a higher melting point than polypropylene. For example, separators made from polyimide, separators made from ultra-high molecular weight polyethylene and embedded ceramic layers have been proposed to form robust refractory polymer separators. It is also being considered to formulate and utilize low flammable electrolytes and non-volatile, nonflammable ionic liquids, fluoroethers and other highly fluorinated solvents as battery electrolytes. Researchers are developing lithium-ion batteries that are completely liquid-free. These solid-state batteries contain an inorganic lithium-ion conductor, which is very stable and safe because it is inherently nonflammable, and has a long cycle and storage life. However, the production of these solid-state batteries requires an expensive and labor-intensive vacuum deposition method.
In addition to these efforts focused on the structure of individual battery cells, the components used to separate individual battery cells and hold them in place to form a battery module or battery pack. There is also an effort that focuses on the design of the battery. Other efforts have focused on the other components that make up a battery module or battery pack. One factor that influences the design of individual battery cells and the components used to hold the battery module and battery pack is the size of the battery pack and as many individual batteries as possible within the battery module or battery pack. There is a keen interest in the desire to include cells. For example, in some applications it is desirable to include as many battery cells as possible in as small a battery pack as possible.
Despite these efforts, electrical energy storage cell failures, especially the burning of gas produced as a result of such failures in multi-cell deployments, heat energy to undamaged battery cells adjacent to the failed cell. Continuing interest is in portable electrical energy storage devices that meet size criteria and battery densities that effectively manage the transmission of induced failures and, in the unlikely event of such a situation, the danger to the user.
The embodiments described in this application relate to a first embodiment that covers a frame for holding a plurality of individual portable electrical energy storage cells in an array within a portable electrical energy storage device. The frame contains a receptacle for receiving individual portable electrical energy storage cells. The receptacle is surrounded by the walls of the frame. According to the embodiments described herein, the wall of the frame surrounding the first receptacle is a second wall that is less resistant to thermal energy transfer than the first wall portion of the wall of the frame surrounding the first receptacle. Including the part. The second wall portion of the frame includes a passage extending between the first receptacle and the second receptacle. According to some embodiments described herein, the plug is located within at least a portion of the passage extending between the first receptacle and the second receptacle. The resistance of the plug to thermal energy transfer is greater than the resistance of the second wall portion to thermal energy transfer.
In a second embodiment described herein, a frame for holding a plurality of individual electrical energy storage cells in an array within a portable electrical energy storage device accepts a portion of the portable electrical energy storage cell. The first embodiment comprises the first receptacle for the purpose. The first receptacle is surrounded by a first wall portion of the frame and a second wall portion of the frame. The second wall portion of the frame also surrounds a portion of the second receptacle for receiving a portion of the portable electrical energy storage cell. The second wall portion of the frame includes a passage extending between the first receptacle and the second receptacle. The second wall portion is less resistant to thermal energy transfer than the first wall portion of the frame.
The third embodiment described herein is intended for first and second embodiments in which the plug is located within at least a portion of a passage extending between the first and second receptacles. To do.
A fourth embodiment described herein is a method of forming a frame for holding a plurality of individual electrical energy storage cells in an array within a portable electrical energy storage device, wherein the portable electrical energy is stored. The subject of the method comprises providing a frame precursor containing a first receptacle for receiving a portion of the storage cell. The first receptacle is surrounded by a first wall portion of the frame and a second wall portion of the frame. The second wall portion of the frame precursor surrounds a portion of the second receptacle for receiving a portion of the portable electrical energy storage cell. The method comprises forming a passage within a second wall portion of the frame, which passage extends between the first receptacle and the second receptacle.
A fifth embodiment described herein is intended for a fourth embodiment that includes the step of disposing the plug in a passage formed within the second wall portion, and is the plug removed? Or it is more resistant to thermal energy transfer than a portion of the second wall portion that does not exist and includes a portion of the second wall portion that forms the passage.
A sixth embodiment described herein is a frame for holding a plurality of individual portable electrical energy storage cells in an array within a portable electrical energy storage device, the first wall portion. Including, targeting frames. The frame also includes the second wall portion. The second wall portion has a section that is equal to or greater than the first wall portion of the frame and is resistant to thermal energy transfer that is equal to or greater than the first wall portion. Includes sections that are less resistant to thermal energy transfer than sections of the second wall section. The frame contains a receptacle for receiving a portion of a portable electrical energy storage cell, the receptacle being surrounded by a first wall portion of the frame and a second wall portion of the frame.
A seventh embodiment described herein is intended for a portable electrical energy storage device comprising a frame according to aspects of the first to third embodiments described herein.
Eighth embodiment, described herein, is a portable electrical energy storage device comprising a plurality of individual electrical energy storage cells provided, comprising a frame comprising a plurality of receptacles, of a plurality of receptacles. At least one accepts one end of a plurality of individual electrical energy storage cells, and the frame is intended for a portable electrical energy storage device formed from a first material. A cap made of a second material different from the first material covers a frame adjacent to at least one of the plurality of receptacles and is one electrical energy storage cell accepted within at least one of the plurality of receptacles. Cover the edges of the.
A ninth embodiment described herein is between a frame at least one of a plurality of receptacles and another adjacent receptacle of the plurality of receptacles for receiving the end of another electrical energy storage cell. The second material comprises the extending passage, and the second material is disposed in the passage, and is intended for the eighth embodiment.
A tenth embodiment described herein includes a first receptacle for receiving one end of a plurality of individual electrical energy storage cells, wherein at least one of the plurality of receptacles comprises a first receptacle. Is surrounded by a first wall portion of the frame and a second wall portion of the frame, the second wall portion of the frame being a second for receiving one end of multiple individual electrical energy storage cells. Surrounding a portion of the receptacle, the second wall portion of the frame contains a passage extending between the first receptacle and the second receptacle, and the second wall portion of the frame is from the first wall portion of the frame. Also covers the eighth and ninth embodiments, which are less resistant to thermal energy transfer.
The eleventh embodiment described herein covers the eighth to tenth embodiments in which the thickness of the second wall portion of the frame is smaller than the thickness of the first wall portion of the frame.
A twelfth embodiment described herein covers eighth to eleventh embodiments in which the plug is located within at least a portion of a passage extending between the first and second receptacles. .. In certain embodiments, the plug is a material that is more resistant to thermal energy transfer than the material that includes the second wall portion.
In a thirteenth embodiment described herein, a plurality of peripheral receptacles are located around a frame, each peripheral receptacle is surrounded by a peripheral wall, and each peripheral wall partially passes through a peripheral wall. The eighth to twelfth embodiments are covered, characterized in that there are no extending passages.
In the fourteenth embodiment described herein, at least one of the plurality of receptacles of the portable electric energy storage device includes a first wall portion and a second wall portion, the second wall portion. A section that is more resistant to thermal energy transfer than the first wall portion and a section of the second wall portion that is equal to or greater than the first wall portion is more resistant to thermal energy transfer. Eighth to thirteenth embodiments are covered, including sections with low resistance to thermal energy transfer.
In a fifteenth embodiment described herein, a first wall portion comprises a first material and has a second wall portion that is resistant to thermal energy transfer equal to or greater than the first wall portion. The section of the second wall portion of the frame, which is less resistant to thermal energy transfer than the section of, contains the second material, the first material and the second material are the same, eighth to twelfth embodiments. Is targeted.
The sixteenth embodiment described herein relates to a method of forming a frame for holding a plurality of individual electrical energy storage cells in an array within a portable electrical energy storage device. In the embodiments described, at least one of the plurality of receptacles is for receiving one end of a plurality of individual electrical energy storage cells, and the frame is formed from the first material. A step of providing a frame containing, and a step of accepting one end of a plurality of individual electrical energy storage cells within at least one of the plurality of receptacles, and over a frame adjacent to at least one of the plurality of receptacles. It comprises the step of forming a cap of a second material different from the first material over one end of a plurality of individual electrical energy storage cells accepted within at least one of the plurality of receptacles.
In a seventeenth embodiment described herein, at least one of a plurality of receptacles comprises a first receptacle, the first receptacle being a first wall portion of a frame and a second wall portion of a frame. Surrounded by, the second wall portion of the frame encloses a portion of the second receptacle for receiving the ends of the individual electrical energy storage cells, and the second wall portion of the frame is the first wall of the frame. Less resistant to thermal energy transfer than the portion, and within the second wall portion of the frame, a step of forming a passage extending between the first receptacle and the second receptacle, and a plug are arranged in the passage. 16th embodiment and subject matter, including the steps to be performed.
The eighteenth embodiment described herein covers the sixteenth and seventeenth embodiments in which the plug is a material that is more resistant to thermal energy transfer than a material that includes a second wall portion.
In the nineteenth embodiment described herein, the first wall portion of the frame comprises the first material, the second wall portion of the frame comprises the second material, the first material and the second. The materials of are the same, subject to the 16th to 18th embodiments.
A twentieth embodiment described herein is intended for a frame for holding a plurality of individual electrical energy storage cells within an array within a portable electrical energy storage device. Such a frame comprises a plurality of receptacles, at least one of the plurality of receptacles accepts one end of a plurality of individual electrical energy storage cells, the frame being formed from a first material. Such a frame also includes a cap formed from a second material, which covers a frame adjacent to at least one of the plurality of receptacles and is accepted within at least one of the plurality of receptacles 1 Covering the ends of one electrical energy storage cell, the second material is different from the first material.
In a twenty-first embodiment described herein, a passage is between at least one of the plurality of receptacles and another adjacent one of the plurality of receptacles for receiving the end of another electrical energy storage cell. The twentieth embodiment, which extends and the second material is disposed in the passage, is directed.
In a twenty-second embodiment described herein, at least one of the plurality of receptacles comprises a first receptacle for receiving one end of a plurality of individual electrical energy storage cells, the first receptacle. Is surrounded by a first wall portion of the frame and a second wall portion of the frame, the second wall portion of the frame being a second for receiving one end of multiple individual electrical energy storage cells. Surrounding a portion of the receptacle, the second wall portion of the frame contains a passage extending between the first receptacle and the second receptacle, and the second wall portion of the frame is from the first wall portion of the frame. Of the 20th and 21st embodiments, which are also less resistant to thermal energy transfer.
In the 23rd embodiment described herein, the thickness of the second wall portion of the frame for holding a plurality of individual electrical energy storage cells in an array within a portable electrical energy storage device is a frame. 20th to 22nd embodiments, which are smaller than the thickness of the first wall portion of the above.
The twenty-fourth embodiment described herein relates to twenty-third embodiments in which the plug is located within at least a portion of a passage extending between the first and second receptacles. And.
The 25th embodiment described herein covers the 20th to 24th embodiments in which the plug is a material that is more resistant to thermal energy transfer than a material that includes a second wall portion.
In the 26th embodiment described herein, at least one of the plurality of receptacles includes a first wall portion and a second wall portion, and the second wall portion is resistant to thermal energy transfer. A section that is equal to or greater than one wall portion and a section that is less resistant to thermal energy transfer than a section of the second wall portion that is equal to or greater than the first wall portion. 20th to 25th embodiments, including.
In the 27th embodiment described herein, the first wall portion comprises a first material and has a second wall portion that is resistant to thermal energy transfer equal to or greater than the first wall portion. The section of the second wall portion of the frame, which is less resistant to thermal energy transfer than the section of, contains the second material, the first material and the second material are the same, 20th to 26th implementations. Target the form.
In the figure, the same reference number identifies a similar element or behavior. The size and relative position of the elements in the figure are not always drawn to scale. For example, the shapes and angles of the various elements are not drawn to scale, and some of these elements are arbitrarily magnified and placed to improve the visibility of the figure. Moreover, the particular shape of the drawn element is not intended to convey information about the actual shape of the particular element and is selected only for ease of recognition in the figure.
<figref num="1">Multiple individual portable electrical energy storage cells within an array within a portable electrical energy storage device that includes parts of the various components or structures described herein, according to one non-limiting embodiment. It is an isometric view of the upper part of the frame for holding.</figref><figref num="2">FIG. 3 is an isometric view of an enlarged portion of the frame of FIG. 1 according to one non-limiting embodiment.</figref><figref num="3">FIG. 3 is an isometric view of an enlarged portion of the frame of FIG. 1 according to one non-limiting embodiment, with components described herein and not shown in FIG.</figref><figref num="4">FIG. 1 is a plan view of the top of the frame of FIG. 1 according to one non-limiting embodiment.</figref><figref num="5">It is sectional drawing along line 5-5 of FIG.</figref><figref num="6">Multiple individual portable electricity within an array within a portable electrical energy storage device that includes some of the various components or structures described herein, according to one non-limiting embodiment shown in FIG. It is the upper plan view of the frame for holding an energy storage cell.</figref><figref num="7">It is sectional drawing along line 7-7 of FIG.</figref><figref num="8">It is a cross-sectional view along line 8-8 of FIG.</figref><figref num="9">FIG. 3 is an isometric view of an enlarged portion of the frame of FIG. 1 with components or structures described herein and not shown in FIG. 2 in one non-limiting embodiment.</figref><figref num="10">FIG. 3 is an isometric view of another non-limiting embodiment of a frame for holding a plurality of individual portable energy storage devices within an array within a portable electrical energy storage device.</figref><figref num="11">It is sectional drawing along the line 11-11 of FIG. 6 and FIG.</figref>
Although specific embodiments of the subject matter of this application are set forth herein by way of example, it is readily understood that various modifications can be made without departing from the spirit and scope of the subject matter being disclosed. Will be. Therefore, the subject matter of this application is not limited except to the extent of the appended claims.
The following description provides specific specific details for a complete understanding of the various embodiments disclosed. However, one of ordinary skill in the art will recognize that embodiments can be implemented without one or more of these specific details, or with other methods, components, materials, and the like. As another example, well-known structures associated with portable electrical energy storage cells, such as batteries, and portable electrical energy storage devices, such as battery packs, avoid unnecessarily obscuring the description of embodiments. Not shown or explained in detail for this reason.
Throughout the specification and claims, the word "preparing" and its variants, "preparing" and "preparing", etc., are "including, but not limited to," unless a different interpretation is required in the context. It shall be interpreted in an open and comprehensive sense.
Throughout this specification, the reference of "one embodiment" or "one embodiment" means that at least one embodiment includes a particular feature, structure or property described in relation to the embodiment. Therefore, the terms "in one embodiment" or "in one embodiment" at various points throughout the specification do not necessarily refer to the same embodiment.
The use of ranks such as first, second, and third does not necessarily mean the idea of ranked ranks, but rather may only distinguish between multiple cases of behavior or structure.
References to portable power storage devices or electric energy storage devices are, but are not limited to, any device capable of storing power and releasing stored power, including, but not limited to, batteries, supercapacitors or ultracapacitors. It means a module composed of a plurality of these devices. References to portable electrical energy storage cells include, but are not limited to, chemical storage cells such as, but not limited to, nickel-cadmium alloy battery cells or lithium ion battery cells, such as rechargeable or secondary battery cells, or a plurality thereof. Means a chemical storage cell. A non-limiting example of a portable electrical energy storage cell is shown in the drawings as a cylinder, for example in a size and shape similar to a conventional AAA sized battery, but the present disclosure illustrates the form factors herein. Not limited to.
An example of a portable power storage device or a portable electric energy storage device is a pack containing a plurality of portable electric energy storage cells that can be easily moved by hand without additional equipment.
The disclosure headings and summaries provided herein are for convenience only and do not interpret the scope or meaning of the embodiments.
Generally speaking, the present disclosure relates to electrical devices such as motorcycles, scooters and electric bicycles, power tools, electric lawns and gardening equipment, including electric or hybrid vehicles, including one or more electrical energy storage cells. The subject is an example of a portable electrical energy storage device suitable for power supply. A further description of the portable electrical energy storage device according to the embodiments described herein is provided in the context of the portable electrical energy storage device used in the electric scooter, but is portable according to the embodiments described herein. It should be understood that type electrical energy storage devices are not limited to applications in electric scooters. Further, the portable electric energy storage device is described below with reference to a single electric energy storage cell module containing a plurality of electric energy storage cells. The description is not limited to electrical energy storage devices that include only a single electrical energy storage cell module, but includes portable electrical energy storage devices that include two or more electrical energy storage cell modules. The present disclosure also describes specific embodiments of the spatial arrangement of portable electrical energy storage cells that form part of the electrical energy storage cell module. The description is not limited to the specific spatial arrangement of the portable electrical energy storage cell within the electrical energy storage cell module specifically described herein. The present disclosure also applies to the spatial arrangement of portable electrical energy storage cells within an electrical energy storage cell module, which is different from what is specifically shown or described herein. The present disclosure also describes specific embodiments of frames for holding a plurality of individual electrical energy storage cells within an array within a portable electrical energy storage device. The present description is not limited to the specific spatial arrangement of the exemplary frames described herein. The present disclosure also applies to frames for holding multiple individual electrical energy storage cells within an array within a portable electrical energy storage device, which is different from those specifically shown and described herein. .. For example, the description in this specification The frame according to the embodiments described may include more or less receptacles, which may be arranged in a geometric pattern different from the geometric patterns of the receptacles specifically shown and described herein. In addition, the figures in this description show the features of the peripheral and top surfaces of the illustrated frame. The present description is not limited to frames that include such features. The frames according to the embodiments described herein may omit such features and / or include other features.
Referring to FIG. 1, an exemplary embodiment of a frame 100 for holding a plurality of individual electrical energy storage cells (200 in FIG. 2) in an array is shown. The frame 100 is composed of a plurality of first parallel rows and a plurality of receptacles 102 2 arranged in a plurality of second parallel rows extending in a direction different from or perpendicular to the first parallel row. Includes a dimensional array. Further, the exemplary frame 100 includes a plurality of receptacles identified by a reference symbol Y (FIG. 4) located around the frame 100. It should be understood that the frame for holding a plurality of individual electrical energy storage cells in the array according to the embodiments described herein includes a receptacle having a different shape than that shown in FIG. For example, the receptacle can be a square, rectangular, pentagonal, hexagonal, or other polygonal or non-polygonal shape that matches the shape of the portable electrical energy storage cell accepted by the frame. For example, if the portable electrical energy storage cell has a shape similar to an AA battery or AAA battery, the receptacle has a rounded shape, allowing the electrical energy storage cell to be accepted within the receptacle with precision tolerances. It will be of the same diameter. Tolerances should not be so tight that the portable electrical energy storage cell cannot easily slide into the receptacle, but on the longitudinal axis of the portable electrical energy storage cell after the electrical energy storage cell is placed in the receptacle. On the other hand, it must not be loose enough to be displaced in the radial direction.
Further referring to FIG. 2, the frame 100 includes a plurality of tabs 104 arranged on the top surface 101 of the frame 100. Tab 104 extends over a small portion of each receptacle 102. In the embodiment shown in FIG. 1, some receptacles include four tabs 104 extending over a portion of the receptacles, while other receptacles include fewer tabs 104, such as two or three tabs. According to the embodiments described herein, fewer tabs 104, eg, one tab, can be provided on a particular receptacle. The tab 104 contacts the top of the portable electrical energy storage cell 200 inserted into the receptacle from below and acts as a stopper to limit further insertion of the portable electrical energy storage cell 200.
The frame 100 is made from a material (eg, a first material) that is lightweight and strong and can be molded by plastic molding processes such as rotomoulding, injection molding, blow molding or compression molding. Materials that can be molded by the plastic molding process include materials with thermal deformation temperatures in the range of about 95 to about 120 ° C, as determined by ASTM D648. The material forming the frame 100 is particularly resistant to thermal energy transfer through the walls of the frame that separates one receptacle from adjacent receptacles (eg, acting as a thermal barrier). Resistance to such thermal energy transfer includes the ability to withstand thermal energy transfer through the walls of the frame resulting from conduction, convection or radiation. Resistance to thermal energy transfer is demonstrated by the material forming the frame 100 being fire resistant at the temperature at which the frame is exposed in the event of a portable electrical energy storage cell failure (exemplary suitable materials are: Underwriters Laboratories UL-94 V-0 Fire resistant properties that meet the standard test, but suitable materials are UL-94 Not limited to those that meet the V-0 test), and / or indicated by having a melting point higher than the temperature at which the frame is exposed if the portable electrical energy storage cell fails (exemplary suitable materials are: It has a melting point of about 270 ° C, but suitable materials are not limited to having a melting point of about 270 ° C). Suitable materials also include materials with higher or lower melting points and / or materials with desired adiabatic properties (exemplary suitable materials have a thermal conductivity of about 0.19 to about 0.22 W / mK). However, suitable materials are not limited to having a thermal conductivity coefficient within this range. Suitable materials also include materials having a higher or lower thermal conductivity coefficient).
Examples of materials on which the frame 100 can be formed include acrylic resin, polyester resin, polypropylene resin, polyethylene resin, polycarbonate resin, polyvinyl chloride resin, polystyrene resin, acrylonitrile butadiene styrene resin, polyurethane resin, maleimide, melamine formaldehyde, phenolformaldehyde, etc. Includes thermoplastic and thermocurable materials such as polyepoxides and polyimides. The ones listed above are not comprehensive and it is understood that the frame 100 can be formed from other materials that can withstand the transfer of thermal energy through the walls of the frame in the event of a portable electrical energy storage cell failure. To.
An array of individual portable electrical energy storage cells 200 formed when such cells are held within multiple receptacles 102 of frame 100 is described and shown in US Patent Application Publication No. 2015/000645514. Can be included within the housing (not shown) of a portable electrical energy storage device housing, such as a housing. Although only a single frame 100 is shown in FIG. 1, a second frame (not shown) is shown in FIG. 1 (for example, when frame 100 in FIG. 1 acts as an upper frame). It should be understood that it can be used as a bottom frame to accommodate the end of a portable electrical energy storage cell 200 that is unacceptable within frame 100. When the frame 100 is used in this way, the frame 100 of FIG. 1 is rotated 180 degrees from the orientation shown in FIG. 1 and thereby the end of the portable electrical energy storage cell received within the frame 100 of FIG. It is understood that the end of the portable electrical energy storage cell 200 on the opposite side can be accepted.
Embodiments of a portable electrical energy storage device comprising a plurality of arrays of portable electrical energy storage cells 200, eg, in the form of a plurality of portable electrical energy storage cell modules stacked on top of each other, are described herein. The modified form of the frame 100 according to the embodiment accepts one side configured to accept the bottom of the portable electrical energy storage cell constituting the upper module and the upper portion of the portable electrical energy storage cell constituting the lower module. Includes a single frame with facing sides configured as such.
Referring to FIG. 2, each receptacle 102 of FIG. 2 is surrounded by at least one first wall portion 106 and at least one second wall portion 108. In the illustrated embodiment of FIG. 2, the receptacle 102A is surrounded by two first wall portions 106 on either side of the receptacle 102A and two second wall portions 108 on either side of the receptacle 102A. Therefore, in FIG. 2, it can be roughly explained that the first wall portion 106 and the second wall portion 108 surrounding the receptacle 102A are radially offset by 90 ° from each other.
Illustratively shown in FIGS. 1, 2, 2, 4, 5, and 8 in particular with respect to forming a compact portable electrical energy storage cell module with a small form factor and a high density portable electrical energy storage cell. In certain embodiments, the thickness T2 of the second wall portion 108 is smaller than the thickness T1 of the first wall portion 106. It should be understood that this description is not limited to the thicknesses T1 and T2, nor is the first wall portion 106 having a thickness greater than the thickness of the second wall portion 108. For example, the thickness T2 can be greater than the thickness T1. In another embodiment according to the present description, the receptacle 102 can be surrounded by a first wall portion 106 having a thickness T1 and a different first wall portion 106 having a thickness different from T1. In yet another embodiment according to the present description, the receptacle 102 can be surrounded by a second wall portion 108 having a thickness of T2 and another second wall portion 108 having a thickness different from T2. The specific thicknesses T1 and T2 can be selected in consideration of the specific material from which the frame 100 is formed and the resistance of that material to thermal energy transfer. For example, T2 may be greater than about 1 mm and T1 may be less than about 1 mm, depending on the material used to form the frame 100. It is understood that these thickness ranges relative to T1 and T2 are exemplary, with T2 being less than 1 mm and T1 being more than 1 mm.
In some embodiments, the first wall portion 106 is formed with a thickness T1 that allows the first wall portion 106 to have sufficient resistance to thermal energy transfer.
Referring to FIG. 2, in the illustrated exemplary embodiment, the second wall portion 108 extends between the receptacle 102A and the adjacent receptacle 102B, otherwise separated by the second wall portion 108. Includes aisle or opening 110. In the illustrated embodiment of FIG. 2, the passage 110 has a generally rectangular profile, but the present description is not limited to the passage 110 having a generally rectangular profile. The profile of the passage 110 can be different from that specifically shown in FIG. For example, the profile of passage 110 can be semi-circular or different polygons.
Referring to FIGS. 4-7, the depth of the passage 110 shown in FIG. 2 is about 1/2 the height of the second wall portion 108. The depth of the passage 110 may be greater or less than the depth shown in the exemplary embodiment of FIG. However, it is preferred that the passage 110 does not completely extend from the top 101 of the frame 100 to the bottom 103 of the frame 100. Each passage 110 does not have to have the same depth, i.e. different passages can have different depths. As described in more detail below, the specific depth of the passage 110 is partially determined by where the portable electrical energy storage cell is most likely to burst in the event of a portable electrical energy storage cell failure. Will be done.
In some embodiments, the frame 100 has at least one receptacle defined by the walls of the frame 100, including one passage 110 that extends completely from the top 101 of the frame 100 to the bottom 103 of the frame 100.
The passage 110 can be formed in a number of different ways, depending on the embodiments described herein. For example, the passage 110 can be formed in the process of molding the frame 100. Alternatively, the passage 110 can be formed by molding the frame 100 and then removing a part of the frame 100 to form the passage 110.
Although not intended to be limited to any particular theory, it is generated in the event of a portable electrical energy storage cell failure of the type that forms a portable electrical energy storage cell module in combination with the frame described herein. It is generally believed that the hot gas escapes from the portable electrical energy storage cell adjacent to the top and / or bottom cover of the portable electrical energy storage cell. The reason for this finding is not clear, but it may be related to the stress applied to the cell during the manufacturing process, especially during the attachment of the top or bottom cover to the portable electrical energy storage cell. When such hot gases escape from the portable electrical energy cells adjacent to the top and / or bottom covers, these (and / or the flames resulting from the combustion of the escaped gas) are the first wall portion 106 or the second. Collide with wall portion 108 or both. The resistance of these first wall portions 106 and second wall portions 108 to thermal energy transfer is, in part, the thickness of the material forming the frame 100 and the first wall portions 106 and second wall portions 108. Depends on. When the first wall portion 106 and the second wall portion 108 are made of the same material, the thicker the wall portion, the more resistant or usually greater the resistance to thermal energy transfer.
The size and location of the passage 110 is such that the hot gas and / or flame escaped from the failed portable electrical energy storage cell is resistant to thermal energy transfer of the second wall portion 108 and / or the second wall portion. Can be determined based on a number of factors, including where the bumps into the smallest section. When hot gas and / or flame escapes from a failed portable electrical energy cell near the cell top cover, its proportion is greater than that of the second wall portion 108 section below the passage 110. Such gas and flame collide with the second wall portion 108 near the passage 110. Therefore, the depth of the passage 110 takes into account where the hot gas and flame escape from the failing portable electrical energy storage cell when the failing portable electrical energy storage cell is held within the frame 100. Can be selected. In order to maintain the physical integrity of the frame 100, it is preferred that the passage 110 does not extend completely from the top 101 to the bottom 103 of the frame 100. In some embodiments, the section of the second wall portion 108 that remains after the passage 110 is formed is thicker than the portion of the second wall portion 108 that has been removed to form the passage 110. This increased thickness of the section of the second wall portion 108 that remains after the passage 110 has been formed is the second that this remaining portion of the second wall portion 108 has been removed to form the passage 110. It provides additional resistance to thermal energy transfer compared to the case where it is the same thickness as the section of wall portion 108 of. In certain embodiments, the second wall portion 108 comprises a section that is resistant to thermal energy transfer equal to or greater than the first wall portion 106 of the frame 100. Further, in certain embodiments, the second wall portion 108 is more resistant to heat transfer than the section of the second wall portion 108, which is more resistant to thermal energy transfer than the first wall portion 106. Contains small sections.
When the first wall portion 106 and the second wall portion 108 are formed of the same material and the thickness T2 of the second wall portion 108 is less than the thickness T1 of the first wall portion 106, the second wall portion 108 is less resistant to thermal energy transfer from receptacle 102A, which contains a portion of a failed portable electrical energy storage cell, to an adjacent receptacle 102B, which contains a non-failed portable electrical energy storage cell (ie, more). The ability to delay or prevent thermal energy transfer through the second wall portion 108 is low compared to the thick first wall portion 106.) Adjacent by delaying and / or preventing such thermal energy transfer. The possibility that the temperature of the portable electric energy storage cell 200 in the receptacle 102B will reach a level at which such a portable electric energy storage cell can fail is reduced. By delaying and / or preventing such thermal energy transfer, hot gas or flames escaping from the failed portable electrical energy storage cell are external to the unfailed portable electrical energy storage cell in the adjacent receptacle 102B. It also reduces the possibility of causing physical damage.
With reference to FIG. 3, the passage 110 includes a plug 112, according to an exemplary embodiment described herein. The plug 112 of the passage 110, regardless of whether the passage 110 is formed by removing a portion of the second wall portion 108 or the passage 110 is formed when the frame 100 is formed or formed. It can have a shape that is almost the same as or similar to the shape. The plug 112 is formed from a material (eg, a second material) that is more resistant (or has a higher fire resistance rating) to thermal energy transfer than the material that makes up the second wall portion 108. Thermal energy from the receptacle 102A containing the failed portable electrical energy storage cell 200 to the adjacent receptacle 102B containing the unfailed portable electrical energy storage cell when the plug 112 is provided in the passage 110. Movement is reduced. By increasing the ability of the frame 100 to withstand or prevent such thermal energy transfer, especially in the vicinity of the second wall portion 108, the portable electrical energy storage cell 200 in the adjacent receptacle 102B The likelihood of failure is reduced by exposure to high temperatures and / or by damaging the case of a portable electrical energy storage cell that has not begun to fail. In some embodiments, the increased resistance of the material forming the plug 112 to thermal energy transfer ranges from about 1.5 to about 3 times the resistance of the material forming the frame 100 to thermal energy transfer.
A material is more resistant to thermal energy transfer compared to other materials when less thermal energy is transferred by conduction, convection and / or radiation. Suitable materials for the plug 112 include materials that are lightweight and strong and can be molded by plastic molding processes such as rotomoulding, injection molding, blow molding or compression molding. Such materials are more resistant to thermal energy transfer, less flammable, more flame-retardant, more fire-resistant, better prevent flame propagation or better than the material forming the second wall portion 108. Can be reduced, has a high melting point, is highly resistant to deformation, can better withstand exposure to flames or hot gases on one side without propagating combustion to the other side, and / or excellent Includes materials that are insulation. A suitable material for forming the plug 112 depends on the material forming the second wall portion 108. However, suitable materials include materials used to form a second wall portion 108 supplemented with flame-retardant materials such as fiberglass, nylon 66. Other suitable materials include flame-retardant adhesives mixed with flame-retardant materials such as fiberglass, nylon 66. The plug 112 can also be formed from a silicone-based material or silicone-based adhesive, mica and glass. Other examples of materials in which the plug 112 can be formed include those in which the frame 100 can be formed, and the provided plug 112 is more resistant to thermal energy transfer than the material forming the second wall portion 108. Formed from material. Such materials include acrylic resins, polyester resins, polypropylene resins, polyethylene resins, polycarbonate resins, polyvinyl chloride resins, polystyrene resins, acrylonitrile butadiene styrene resins, polyurethane resins, maleimides, melamine formaldehyde, phenolformaldehydes, polyepoxides and polyimides. Includes thermoplastic and thermocurable materials. The ones listed above are not exhaustive and the plug 112 is more heat than the material forming the second wall portion 108. It is understood that it can be formed from other materials that are highly resistant to energy transfer. The plug 112 may also be formed from a metallic material if the plug 112 is sized and placed so that it does not make electrical contact with the electrodes of the portable electrical energy storage cell.
The plug 112 can be formed in situ or in situ. In situ formation involves placing individual portable electrical energy storage cells 200 in receptacle 102 prior to forming plug 112 in passage 110. When the portable electrical energy storage cell 200 is placed in place, the material forming the plug 112 or a fluid precursor of such material can be injected into or into the passage 110. Once in place, such materials or precursors thereof harden or harden. Alternatively, the plug 112 is an electrical energy storage cell by inserting a jig or replica of an array of portable electrical energy storage cells into the frame 100 before injecting or inflowing the material forming the plug 112 into the passage 110. The 200 can be formed in situ in the passage 110 before being placed in the frame 100. Depending on the particular material used to form the plug 112, the adhesion between the plug 112 and the first wall portion 106 may be to hold the plug 112 in place, for example via a chemical retainer. It can be enough. Excise formation of the plug 112 can include forming the plug 112 using a mold and removing it from the mold after the plug 112 has hardened or hardened. Alternatively, the plug 112 may be formed by a stamping or cutting process. The excitement forming plug 112 can then be secured in the aisle 110 before or after inserting the portable electrical energy storage cell into the respective receptacles. The excitable plug 112 can be mechanically or chemically fixed in the passage 110 by friction fitting. Although not shown, a passage 110 or part of a passage 110 is a male suitable for pairing with a corresponding female or male feature on the plug to secure the plug 112 within the passage 110. A mold or female feature can be provided. Alternatively, as shown in FIG. 9, a mechanical fastener or Can be provided with a retainer 902 to mechanically secure the plug 112 in the passage 110. In the embodiment shown in FIG. 9, the mechanical retainer 902 includes one end 904 fixed to a portion of the plug 112 and another end 905 permanently or reversibly fixed to a feature of the frame 100. .. For example, in FIG. 9, the end 905 of the mechanical holder 902 opposite to the end 904 fixed to the plug 112 is fixed to the lip 906 formed in the opening 908 of the frame 100. It should be appreciated that the plug 112 can be mechanically secured within the passage 110 using a mechanical retainer or fastener designed differently than that specifically shown in FIG. For example, the end 904 of the holder 902 can be secured to the plug 112 at a location other than that shown in FIG. Similarly, the end 905 of the mechanical retainer 902 can be secured to the frame 100 in a manner different from that shown in FIG. The plurality of plugs 112 can also be formed as an interconnected array of plugs spatially arranged to coincide with the locations of the plurality of passages within the frame 100. Such multiple plug arrangements can then be inserted into multiple passages in a single step. The end 905 of the can be secured to the frame 100 in a manner different from that shown in FIG. The plurality of plugs 112 can also be formed as an interconnected array of plugs spatially arranged to coincide with the locations of the plurality of passages within the frame 100. Such multiple plug arrangements can then be inserted into multiple passages in a single step. The end 905 of the can be secured to the frame 100 in a manner different from that shown in FIG. The plurality of plugs 112 can also be formed as an interconnected array of plugs spatially arranged to coincide with the locations of the plurality of passages within the frame 100. Such multiple plug arrangements can then be inserted into multiple passages in a single step.
With reference to FIGS. 10 and 11, when the plug 112 is formed by the embodiment of the insitu technique described above, the second material on which the plug 112 is formed or the fluid precursor of such material is (frame). It is applied to the upper part of the frame 100 (accepting a portable electric energy storage device in the receptacle of the) and flows into the passage 110. The material fills the passage 110 and also flows into the gap between the portable electrical energy storage cell 200 and the frame 100. As the aisle 110 is filled, the material extends over the top of the frame 100 and the top of the portable electrical energy storage cell 200. As the material spreads, the material covers the top of the frame 100 and the top of the portable electrical energy storage cell 200 received by the frame 100. Although not shown in FIGS. 10 and 11, the terminals of the individual portable electrical energy storage cells 100 received within the frame 100 are connected to each other by conductive connectors. The second material flows into the gap between these electrical connectors and the individual portable electrical energy storage cells and the gap between the electrical connector and the frame. In an exemplary embodiment, the top of the frame 100, the top of the portable electrical energy storage device within the frame 100, and the electrical connector are embedded or wrapped in a second material. As shown in FIGS. 10 and 11, the applied second material forms a cap, cover or layer 910 on top of the frame 100. Depending on the material forming the cap 910, the cap 910 forms a structure that reduces the risk of explosion, fire propagation and / or explosive gas leakage in the unlikely event that an individual portable electrical energy storage cell 200 fails. To do. The cap 910 has failed or failed by creating a seal around the top of the portable electrical energy storage cell that does not allow flammable gas that can leak from the failed or failed portable electrical energy storage cell to pass through. Explosive gas explosion and / or leakage from a portable electrical energy storage cell Reduce the desk. The oxygen required to facilitate the combustion of the flammable gas leaked from the failed cell also cannot pass through the seal provided by the cap 910. The cap 910 reduces the risk of fire propagation by acting as a barrier through which flames cannot pass. The cap 910 also transfers thermal energy from one side of the cap 910 where the failed portable electrical energy storage cell 200 is located to the opposite side of the cap 910 where the non-failed portable electrical energy storage cell 200 is located. It can also serve as a thermal barrier that prevents transmission. In addition, if the cap 910 holds the electrical connection between the frame 100, the portable electrical energy storage cell 200 and the portable electrical energy storage cell 200 in a tightly fixed relationship, the electrical connector will hold the portable electrical energy storage cell 200 and / Alternatively, the risk of disconnecting from other electrical terminals is reduced.
Referring to FIG. 10, the outer circumference of the frame 100 extends upwardly to serve, among other things, when a second material flows into or is injected onto the top of the frame 100 to form the cap 910. including. In embodiments having a viscosity and / or curing rate that limits the degree to which the second material flows after being applied to the top of the frame 100, to prevent the second material from flowing over the top sides of the frame 100. It is not necessary to utilize the flange 914 that extends upwards. On the other hand, in embodiments having flow and / or curing properties that allow the second material to flow past the perimeter of the frame 100 and across the sides of the frame 100, the upwardly extending flange 914 is dammed or retained. acts as a tool, a portion of the second composition applied is past the outer periphery of the frame 100, the side surface of the frame 100 to prevent the flow over. In such an embodiment, the top of the cap 910 formed from the second material substantially coincides with the top of the upwardly extending flange 914. In yet another embodiment, after the second material has been applied to the top of the frame 100, the top of the flange extending upwards can be used as a guide to scrape off excess adhesive. By scraping the applied second material in this way, the second material spreads more evenly and fills the gaps that have not yet been filled before scraping.
In an alternative embodiment that controls the flow of the second material after the second material has been applied to the frame 100, a combination of the frame 100 and a portable electrical energy storage cell 200 seated in the frame 100 is used. The material of 2 can be placed in a jig or tool shaped to face the surface of the frame to which the material is applied and to limit the flow of the second material to where the cap 910 is formed. In the exemplary embodiment shown in FIG. 10, such a jig or device comprises six mandrels or tabs, in which a second material forms a cap 190 where the mandrel or tab is located. By preventing this, an opening 912 is formed within the cap 910.
In the exemplary embodiment shown in FIGS. 10 and 11, the cap 910 extends to and coincides with the outer circumference of the frame 100. In other embodiments, the cap 910 may extend beyond the perimeter of the frame 100 or may not extend completely to the perimeter of the frame 100. The cap 910 can be formed from any of the second materials described above, including silicone-based materials or silicone-based adhesives. The cap 910 may also be formed from a material that is not used to form the plug 112, but such material can provide the airtight seal described above and is fireproof or fireproof. , Or the thermal barrier described above can be provided. The formation of the cap 910 is described in relation to the formation of the plug 112 with reference to the second material used to form the plug 112, but the cap 910 is made from a different material than the second material. It should also be understood that it can be formed and can be formed without forming the plug 112.
An exemplary embodiment of the cap 910 described herein is not limited to any particular specific thickness, but the exemplary thickness is substantially equal to the height of the flange 914. Including. For example, exemplary thicknesses are less than 3 millimeters, less than 2 millimeters, or less than 1 millimeter. An exemplary range of thicknesses includes 0.5-3.0 mm, 1.0-2.0 mm, and 1.5-2.0 mm. It should be understood that the thickness of the cap 910 may be outside the range described above. The thickness or height of the frame 100 and cap 910, measured in a direction parallel to the length of the portable electrical energy storage cell 200 received within the frame 100, is approximately the length of the portable electrical energy storage cell 200. Can be less than 1/3. For example, the thickness or height of the frame 100 and cap 910 can range from 1/5 to 1/3 of the length of the portable electrical energy storage cell 200. The embodiment of the cap 910 described above with reference to FIGS. 10 and 11 shows a frame 100 that accepts the top of the portable electrical energy storage cell 200, with the cap 910 forming on top of such a frame 100. However, it should be understood that the frame 100 is rotated 180 degrees (ie, flipped with respect to the orientation shown in FIGS. 10 and 11), which can accommodate the bottom of the portable electrical energy storage cell 200. In such a configuration, the portable electrical energy storage cell 200 is sandwiched between two frames to form a module. In such an embodiment, the cap 910 can be provided at the bottom of the frame 100, which has a configuration that is a mirror image of the cap 910 shown in FIGS. 10 and 11.
In the exemplary embodiment of frame 100 shown in FIGS. 1 and 3, a plurality of receptacles are identified by the reference letter Y. The receptacle identified by the reference letter Y is located around the frame 100 and is not surrounded by the wall portion of the frame 100 that includes the passage 110. It should be understood that these receptacles identified by the reference letter Y may be provided with a wall portion of the frame 100 that includes the passage 110. In the specific embodiment shown in FIG. 1, the receptacle identified by the reference letter Y is surrounded by a peripheral wall portion of the frame 100, in which case the thinner portion of the peripheral wall portion of the frame 100 is not adjacent to another receptacle. The thinner portion, for example, is adjacent to the outer circumference of the frame facing the housing of the portable electrical energy storage device in which the frame is located. Therefore, in certain embodiments, vulnerabilities that can be damaged are retained within the frame, and passage for hot gas and flames in the event of a portable electrical energy storage cell in a receptacle adjacent to the frame. It is desirable not to incorporate the plug within these thinner parts to serve as pores. From an adjacent receptacle in terms of dissipating the thermal energy generated by a failed portable electrical energy cell in the space between the portable electrical energy storage cell module and the housing of the portable electrical energy storage device. Breakage of the frame at these locations, apart, is desirable.
The use of plug 112 raises the temperature of a non-failed cell in a receptacle adjacent to the receptacle holding a failed cell to a level at which the temperature of the non-failed cell begins to fail. Helps protect against possible thermal energy. In addition, the use of the plug 112 helps protect the unfailed cell from physical external damage caused by the hot gas or flame colliding with it. For example, the first wall portion 106 and the plug 112 preferably have the side and / or plug 112 of the first wall portion 106 adjacent to the failed cell if the portable electrical energy storage cell fails. Protects unfailed cells when exposed to possible temperatures up to about 1200 ° C for about 2-5 minutes. The sides and / or plug 112 of the first wall portion 106 were exposed for about 2-5 seconds to temperatures up to about 1200 ° C, which can occur when a portable electrical energy storage cell in an adjacent receptacle fails. If sufficient protection of unfailed cells was observed, then at least about 75% of the height of the plug or first wall was exposed to temperatures up to about 1200 ° C for about 2-5 seconds. It remains behind. Alternatively, the first wall portion 106 and the plug 112 preferably have the side surface and / or plug 112 of the first wall portion 106 adjacent to the failed cell if the portable electrical energy storage cell fails. Protects unfailed cells when exposed to possible temperatures up to about 1000 ° C for about 2-5 seconds. The sides and / or plug 112 of the first wall portion 106 were exposed to temperatures up to about 1000 ° C for about 2-5 seconds, which can occur when a portable electrical energy storage cell in an adjacent receptacle fails. If sufficient protection of unfailed cells was observed, then at least about 75% of the height of the plug or first wall part was exposed to temperatures up to about 1000 ° C for about 2-5 seconds. It remains behind.
The various embodiments described above can be combined to provide additional embodiments. All U.S. patents, U.S. patent application publications, U.S. patent applications, foreign language patents, foreign language patent applications and non-patent gazettes referenced herein and / or listed in the application datasheet are in their entirety. Is incorporated herein by. Aspects of embodiments may be modified to adopt the concepts of various patents, applications and publications as needed to provide yet another embodiment.
These and other changes can be made to the embodiments in the light of the detailed description above. In general, the terms used in the following claims should not be construed to limit the scope of the claims to the specific embodiments disclosed in the specification and claims, as such. The claims should be construed to include all possible embodiments along the entire scope of the equivalents to which it is entitled. Therefore, the scope of claims is not limited by this disclosure.
11 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6 Sheet 7 Sheet 8 Sheet 9 Sheet 10 Sheet 11
Every citation, both ways
| Document | Relation | Office |
|---|---|---|
| JP2015011956A | Cites | Japan |
| JP2012216410A | Cites | Japan |
| JP2013030384A | Cites | Japan |
| JP2010519712A | Cites | Japan |
| JP2011049011A | Cites | Japan |
16 members in 8 offices
Priority claims9
| Document | Office | Kind | Date |
|---|---|---|---|
| 201562235981 | United States of America | P | |
| 201562235981 | United States of America | P | |
| 62235981 | United States of America | – | |
| 2016053749 | United States of America | W | |
| 2016053749 | United States of America | W | |
| 62235981 | – | – | – |
| US201562235981P | – | – | – |
| US2016053749 | – | – | – |
| WO2016US53749 | – | – | – |
Members16
| Document | Office | Kind | |
|---|---|---|---|
| US2017098805A1 | United States of America | A1 | |
| WO2017058722A1 | World Intellectual Property Organization (WIPO) | A1 | |
| TW201721933A | Taiwan Province of China | A | |
| US9893335B2 | United States of America | B2 | |
| CN108352471A | China | A | |
| EP3357107A1 | European Patent Office (EPO) | A1 | |
| US2018277809A1 | United States of America | A1 | |
| PH12018500727A1 | Philippines | A1 | |
| JP2018530875A | Japan | A | |
| JP6564531B2This record | Japan | B2 | |
| CN108352471B | China | B | |
| TWI678018B | Taiwan Province of China | B | |
| US10581043B2 | United States of America | B2 | |
| EP3357107B1 | European Patent Office (EPO) | B1 | |
| PH12018500727B1 | Philippines | B1 | |
| ES2949279T3 | Spain | T3 |
16 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
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|---|---|---|
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| Certificate of patent or registration of utility modelJAPANESE INTERMEDIATE CODE: R150R150 | R150 | |
| First payment of annual fees (during grant procedure)JAPANESE INTERMEDIATE CODE: A61A61 | A61 | |
| Written decision to grant a patent or to grant a registration (utility model)JAPANESE INTERMEDIATE CODE: A01A01 | A01 | |
| Decision of grant or rejection writtenTRDD | TRDD | |
| Request for written amendment filedJAPANESE INTERMEDIATE CODE: A523A521 | A521 | |
| Notification of reasons for refusalJAPANESE INTERMEDIATE CODE: A131A131 | A131 | |
| Request for written amendment filedJAPANESE INTERMEDIATE CODE: A523A521 | A521 | |
| Written request for extension of timeJAPANESE INTERMEDIATE CODE: A601A601 | A601 | |
| Notification of reasons for refusalJAPANESE INTERMEDIATE CODE: A131A131 | A131 | |
| Report on accelerated examinationJAPANESE INTERMEDIATE CODE: A971005A975 | A975 | |
| Written request for application examinationJAPANESE INTERMEDIATE CODE: A621A621 | A621 | |
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Numbers
- Publication
- 6564531
- Publication, DOCDB
- 6564531
- Publication, EPODOC
- JP6564531B
- Application
- 2018516129
- Application, DOCDB
- 2018516129
- Application, EPODOC
- JP20180516129
Titles2
- Japanese
- 携帯型電気エネルギー貯蔵セル用フレーム発明の背景
- English
- Background of the invention of the frame for the portable electric energy storage cell
Classification
- CPC, 7
- H01M10/653
- H01M50/24
- H01M2200/10
- H01M2220/30
- Y02E60/10
- H01M50/213
- H01M50/342
- IPC, 3
- H01M2 10
- H01M10 653
- H01M10 658
