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Battery cell with safety layer

United States Patent

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April 28, 2020
View the Complete Patent at the US Patent & Trademark Office
A battery cell comprising a composite water-responsive safety layer and/or composite water- and pH-responsive safety layer to protect against tissue damage and/or electrolysis, when the battery cell is exposed to aqueous solution or tissue, is provided. The composite water-responsive safety layer and/or composite water- and pH-responsive safety layer is adapted to change from a non-electronically conducting state to an electronically conducting state.
15/ 677,921
August 15, 2017
H01M 2/02 (20060101)H01M 2/34 (20060101)H01M 2/30 (20060101)H01M 10/04 (20060101)
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made under a CRADA (SC03/1672) between the Procter & Gamble Company and Sandia National Laboratories, operated for the United States Department of Energy. The Duracell Company and its subsidiary Duracell U.S. Operations, Inc. are the successors-in-interest to the Procter & Gamble Company under CRADA (SC03/1672). The Government has certain rights in this invention.