Method of making a thin film battery
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United States of America Patent
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Apr 30, 2002
Issued Date -
N/A
app pub date -
Aug 1, 2000
filing date -
Jan 12, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A flexible thin film battery including a film layer and a porous cathode deposited on a portion of a film and a porous anode deposited on a portion of the film, with an electrolyte and separator layer positioned between the porous anode and the porous cathode. The electrolyte is preferably dried so the battery is activated when liquid contacts the electrolyte and separator layer. In a preferred embodiment, water swellable particles are included in the cell. The film layers are least partially sealed around the edges, confining the anode, cathode, and electrolyte and separator layer. The method of producing such a battery preferably includes printing various inks in a pattern on a polymeric film.
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