EP1587158A3

Overcharge protection for electrochemical cells

Abstract

The invention relates to an improvement in a cell which is normally susceptible to damage from overcharging comprised of a negative electrode, a positive electrode, and an electrolyte comprised of an overcharge protection salt carried in a carrier or solvent. Representative overcharge protection salts are embraced by the formula:          MaQ where M is an electrochemically stable cation selected from the group consisting of alkali metal, alkaline earth metal, tetraalkylammonium, or imidazolium groups, and Q is a borate or heteroborate cluster and a is the integer 1 or 2.

Term

Term ended

Projected expiry passed 8 April 2025, 1.5 years ago.

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Every citation, both ways

Citations
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WO9831065A1CitesWorld Intellectual Property Organization (WIPO)XYSearch report23-24
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JPH06338347ACitesJapanXSearch report19-20