Patent ID: 9083059
Filing Date: 2015-07-14
Classification: H01M,Y02E

Abstract:
1. A secondary battery comprising: a cathode including a cathode active material layer on a cathode current collector, the cathode active material layer including a cathode active material, a cathode binder, and a cathode electrical conductor, and an anode; and an electrolyte containing a solvent and an electrolyte salt, where R1 is an alkylene group with carbon number from 2 to 4 both inclusive or a halogenated group thereof, an alkenylene group with carbon number from 2 to 4 both inclusive or a halogenated group thereof, an arylene group or a halogenated group thereof, or a derivative thereof where R2 is an alkylene group with carbon number from 2 to 4 both inclusive or a halogenated group thereof, an alkenylene group with carbon number from 2 to 4 both inclusive or a halogenated group thereof, an arylene group or a halogenated group thereof, or a derivative thereof where R5 and R6 are an alkyl group with carbon number from 1 to 10 both inclusive or a halogenated alkyl group with carbon number from 1 to 10 both inclusive, where at least one of R5 and R6 is the halogenated alkyl group with carbon number from 1 to 10 both inclusive.