Electrolytic solution and battery using it

Details Electrolytic solution and battery using it Electrolytic solution and battery using it

2007-01-30

2007-01-30

Maples, John S. (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S326000

Reexamination Certificate

active

10818816

ABSTRACT:
The invention provides an electrolytic solution and a battery, which can sufficiently improve cycle characteristics. The battery comprises an electrode winding body, wherein a cathode and an anode are layered and wound sandwiching a separator inside a battery can. The electrolytic solution is impregnated in the separator. The electrolytic solution contains a high dielectric constant solvent comprised of at least either ethylene carbonate or propylene carbonate; dimethyl carbonate; and diphenyl carbonate at a mass ratio of 5 to 40:58 to 93: more than 0 to 5.

REFERENCES:
patent: 4957833 (1990-09-01), Daifuku et al.
patent: 2003/0049541 (2003-03-01), Inagaki et al.
patent: 2005/0123834 (2005-06-01), Noguchi et al.

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