High performance lithium ion polymer cells and batteries
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United States of America Patent
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Jul 27, 1999
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app pub date -
Sep 15, 1997
filing date -
Nov 18, 1996
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Abstract
Cells, especially solid state rechargeable lithium ion-containing cells having significantly improved cell shelf-life, cycle life and reduced impedance growth. A non-cathode active lithium compound containing one or more non-metallic elements, such as Li.sub.2 CO.sub.3 and Li.sub.2 B.sub.4 O.sub.7, substantially insoluble in the non-aqueous electrolyte of the cell, is dispersed throughout the cathode and is further dispersed within at least one of the anode and separator.
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