Nonaqueous electrolyte and nonaqueous electrolyte battery

Details Nonaqueous electrolyte and nonaqueous electrolyte battery Nonaqueous electrolyte and nonaqueous electrolyte battery

2006-01-10

2006-01-10

Weiner, Laura (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S327000, C429S332000, C429S331000, C429S300000, C429S303000, C252S062200

Reexamination Certificate

active

06984471

ABSTRACT:
A nonaqueous electrolyte has electrolyte salt dissolved in a nonaqueous solvent, wherein the ratio of the nonaqueous solvent having a ring structure is 50 wt % or more in all nonaqueous electrolyte solution components and the nonaqueous solvent includes at least one or more kinds of halogenated solvents expressed by a below-described general formula (1).(Here, at least one of R1and R2designates an alkyl group having the number of carbons of 4 or larger and at least one of them is a halogenated alkyl group).Thus, the decomposition of the halogenated solvent is suppressed.

REFERENCES:
patent: 5633099 (1997-05-01), Yokoyama et al.
patent: 5830600 (1998-11-01), Narang et al.
patent: 5910381 (1999-06-01), Barker et al.
patent: 1 089 371 (2001-04-01), None
Nagasubramanian. “Fluoro-Carbonate Solvents For Li-ion Cells”, Proceedings-Electrochemistry Society, 99-25, pp. 434-439, 2000.

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