Nonaqueous cell

Details Nonaqueous cell Nonaqueous cell

H - Electricity

01

M

319/36

H01M 10/40 (2006.01) H01M 10/26 (2006.01) H01M 6/16 (2006.01)

Patent

CA 1315842

Abstract The present invention relates to a nonaqueous cell. The cell is comprised of a lithium negative electrode, a positive electrode which is comprised of active material and electrolyte. The electrolyte is comprised of a solvent and current carrying species. The solvent is comprised of at least 15 mole percent ethylene carbonate, at least 15 mole percent propylene carbonate and at least 15 mole percent polyethylene glycol dialkyl ether. These three materials combine to provide a cell which has an increased fire hazard safety. Additionally the addition of polyether to the propylene carbonate/ethylene carbonate mixture increases the cycle life of the cell.

579903

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