Thin film buried anode battery
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United States of America Patent
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Dec 15, 2009
Grant Date -
Jan 11, 2007
app pub date -
Jul 29, 2004
filing date -
Nov 13, 2001
priority date (Note) -
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Abstract
A reverse configuration, lithium thin film battery (300) having a buried lithium anode layer (305) and process for making the same. The present invention is formed from a precursor composite structure (200) made by depositing electrolyte layer (204) onto substrate (201), followed by sequential depositions of cathode layer (203) and current collector (202) on the electrolyte layer. The precursor is subjected to an activation step, wherein a buried lithium anode layer (305) is formed via electroplating a lithium anode layer at the interface of substrate (201) and electrolyte film (204). The electroplating is accomplished by applying a current between anode current collector (201) and cathode current collector (202).
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