Nonaqueous electrolytic solution containing ketone compound...

Details Nonaqueous electrolytic solution containing ketone compound... Nonaqueous electrolytic solution containing ketone compound...

2002-03-22

2009-06-23

Alejandro, Raymond (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S326000, C429S341000

Reexamination Certificate

active

07550233

ABSTRACT:
A non-aqueous electrolytic solution containing a ketone compound having the formula (I):in which each of R1and R2is linear or branched alkyl; and each of R3, R4, R5and R6is hydrogen or linear or branched alkyl; however, R1and R4can be combined to form a cycloalkanone ring in conjunction with a propanone skeleton to which R1and R4are connected, and two or more of alkyl of R2, alkyl of R5, a branched chain of alkyl of R1, and a branched chain of alkyl of R4can be combined to form a cycloalkane ring, or alkyl of R1and alkyl of R2and/or alkyl of R4and alkyl of R5can be combined to each other to form a cycloalkane ring, is favorably employed for manufacturing a lithium secondary battery that is excellent in the battery performances and cycle performance.

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