Composite electrolyte for a rechargeable lithium battery
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United States of America Patent
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Jun 22, 2004
Grant Date -
Nov 8, 2001
app pub date -
Jun 25, 1998
filing date -
Apr 20, 1998
priority date (Note) -
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Abstract
The composite electrolyte for use in a thin plate rechargeable lithium battery comprises a porous or microporous inert polymer separator laminate which carries another porous polymer containing a dissociable lithium compound, and the adherent polymer layers are impregnated with an organic liquid containing a lithium salt. The porous or microporous separator laminate may be a single polymer layer or a multiple polymer layer. The composite electrolyte is inserted between the electrodes of a rechargeable lithium battery. In another embodiment the porous polymer separator sheet has an adherent dissociable lithium compound containing polymer layer on each of its major faces.
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