Thin layer energy system

Translation of description of equivalent WO 03050886 A2

description

Thin-film energy system

The invention relates to a thin-film energy system.

There are thin-film energy systems such as batteries for mobile phones, handheld computer or similar portable electronic components known.

A thin-film energy system and holds at least one energy storage such as a battery and / or a battery and / or a capacitor in thin layer construction, that is built on a thin substrate with an overall height of the entire energy storage in the millimeter range. Partly therefore the associated energy storage need batteries and / or batteries and / or capacitors have a high mechanical flexibility, so they can be used in functional smart cards as debit cards or calling cards with additional functions. An example of such a thin-film energy storage is a lithium / polymer electrolyte battery with a height of about lμm to 10 mm. Preferred thin film energy systems are flexible.

A disadvantage of the known systems is that they have a short lifespan compared to the of them driven devices and one hand are virtually non rechargeable bar because the electrical devices are bulky for recharging, complex and expensive, and on the other hand there is also a does not provide changing the systems directly, because it is difficult to replace these smallest components.

There is therefore a need rechargeable mobile thin layer to create energy systems that have a height in the area of ​​thin-film energy systems despite high life. Object of the present invention is therefore to provide rechargeable mobile thin energy systems.

The invention is a thin-film energy system with at least one thin-film rechargeable energy store and at least one Dunnschichtenergiewandler, wherein the energy converter is electrically connected with the rechargeable energy storage.

In one embodiment, the energy converter comprises at least one photovoltaic cell.

In one embodiment, the photovoltaic cell comprises at least one organic functional polymer. Particularly preferred is a flexible photovoltaic cell.

By the term "organic functional polymer" is any layer of a semiconductor device understood that is not from the material of the conventional semiconductor technology based on silicon. A limitation on molecular size, as the term "..polymer" would suggest, is not performed, but can also so-called. "Small molecules" are covered by this BEG reef. The components with organic functional polymers are preferably applied to flexible substrates.

As "thin film energy system" while an example flexible energy system is called, which is between 10 to 1000 microns has a height in the range between 1 micron and 10 mm, preferably.

Preferably, in the power converter to an organic photovoltaic cell, which is adjustable in the thin-film processes produced and has a height between 1 to 8 mm. As energy storage all batteries / batteries / capacitors can be used, whose height does not significantly exceed the stated dimensions.

In one embodiment, the photovoltaic cell is integrated directly into the power storage, so that, for example, an electrode is a common electrode and is used by the photovoltaic cell and the energy storage.

According to another embodiment, the photovoltaic

Cell is not directly integrated in the energy storage, but only in a common package combined (joint packaging).

Preferably, the thin-film energy system is mobile, ie independently operable from the power socket.

The invention is explained in more detail with reference to two figures which show embodiments of the invention:

1 shows an example in which the energy converter, such as the photovoltaic cell, is placed on one of the storage electrodes.

Figure 2 shows an example in which the energy converter, such as the photovoltaic cell is connected by a connecting and / or protective layer with the memory.

In Figure 1, the combination of a thin-film energy store 1 is shown with a thin film solar cell. 2 When loading glade light falls, symbolizes the arrows 4, the transparent top electrode 5 (anode or cathode) of the photovoltaic cell 2. The light penetrates to the photovoltaic active β area of ​​the photovoltaic cell 2 before, optionally substituted by a conductive polymer layer 7 to the counter electrode 8 (anode or cathode) is connected. The electrode 8 is a common electrode of the solar cell 2 and the energy storage device 1. According to the energy it borders giespeichermedium 9, based for example on an electrolyte to. Following the energy storage medium 9 is the counter electrode of the energy accumulator 10 (anode or cathode), which in turn connects to the current collector electrode 13 which is connected to a charging electronic eleventh The whole system is applied to a substrate 12th

The embodiment shown in Figure 1 shows a combination of an energy storage device 1, ie, battery / accumulator / condenser system having a thin film solar cell 2, in which the solar cell 2 is mounted on one of the storage electrodes eighth The solar cell 2 and the energy storage unit 1 may be jointly protected and packaged together by a semi-transparent sealing. The solar cell 2 may cover only a part of the memory 1 or the entire surface. Similarly, the memory 1 may cover the entire surface of the solar cell 2 or only a part thereof. It can also be a conductive polymer layer 7 used with electrode characteristics. Examples include PEDOT, PANI, polypyrrole, etc.).

The arrangement of the electrodes of the memory 1 and the solar cell 2 are selected so that by means of a suitable charging circuit 11, the solar cell 2 to the storage tank 1 but charging the energy extraction from the memory 1 not otherwise influenced.

Figure 2 shows the combination of a thin-film energy store 1, for example, a battery / capacitor - and / or battery system with a thin film solar cell 2, in which the solar cell 2 is connected to the energy storage 1 by a suitable bonding layer. 3 The solar cell 2 may be produced on this layer 3, or it can be a finished solar cell 2 are placed on this layer. The common layer 3 may perform other functions, eg. As a sealing and / or protective layer of one of the two

Components 1 or 2 or both components. It can also use the two components 1 and 2, so energy storage 1 are electrically connected and the solar cell 2 within or on the connecting layer 3rd Depending on the arrangement of the solar cell 2 may be better a semitransparent Versieglungs- / protective / electrically conductive or insulating compound layer. 3 According to one embodiment, the solar cell 2 is disposed so that the substrate 12 (for example, polyester / ITO for solar cells, organic-based.) Is used as a final layer to the surface to the outside for the solar cell 2.

The arrangement of the electrodes (anode / cathode) of the energy storage system and the solar cell is selected so that by a suitable charging circuit 11, the solar cell 2, the energy storage system 1 charges, but otherwise does not affect the energy extraction from the memory the first

The invention proposes the combination of at least one thin-film energy storage system prior to at least one Dunnschichtenergiewandler. There are preferably used solar cells as energy converters, and particularly preferably those which comprise at least one organic functional polymer and / or are flexible. The energy converter should satisfy the mechanical stresses of a mobile thin film energy system and simultaneously be possible without any problems in the production chain can be installed.