Thin-film lithium battery and process
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United States of America Patent
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Apr 20, 1999
Grant Date -
N/A
app pub date -
May 15, 1997
filing date -
May 15, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A lithium battery and process of making same involves employing alternate layers of a lithium anode and an aluminum foil or NiAl expanded metal supported cathode assembly with a gel electrolyte contacting the alternate layers. The electrolyte includes a quantity of N-methyl-2-pyrrollidone and lithium contained within a polyimide matrix and the entire assembly is contained within a sealed polyimide casing. Separate electrical contacts are provided for each of the lithium anode assembly and the aluminum foil or NiAl supported cathode assembly. An out-gassing vent tube extends from the sealed polyimide casing and is sealed a predetermined time after battery construction.
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