Rechargeable lithium electrochemical cell usable at low temperature
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United States of America Patent
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Jun 4, 2002
Grant Date -
Sep 6, 2001
app pub date -
Dec 29, 1998
filing date -
Dec 10, 1998
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Abstract
The present invention provides a rechargeable lithium electrochemical cell comprising an electrolyte containing a lithium salt dissolved in a non-aqueous solvent, at least one positive electrode, and at least one negative electrode of the paste type containing an electrochemically active material which is a carbon compound suitable for inserting lithium ions and a binder, the cell being characterized in that said solvent contains at least one saturated cyclic carbonate and at least one linear ester of a saturated aliphatic monocarboxylic acid, and in that said binder is a polymer having no fluorine.
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