Nonaqueous electrolyte secondary batteries

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method

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429199, 429218, H01M 616, H01M 458

Patent

active

054748623

ABSTRACT:
A nonaqueous electrolyte secondary battery having excellent cycle life characteristic, stability in storage at high temperatures and low-temperature characteristic, which is provided with an anode including a carbon material capable of doping and undoping lithium ion, a nonaqueous electrolyte and a cathode including a lithium-containing oxide, the solvent for the nonaqueous electrolyte being a mixed solvent including an aliphatic carboxylate, a cyclic carbonate and a chain carbonate, with the aliphatic carboxylate being represented by the formula RCOOR' where R represents an ethyl group and R' represents an alkyl group of 1-3 carbon atoms and the cyclic carbonate being one of ethylene carbonate and propylene carbonate.

REFERENCES:
patent: 4056663 (1977-11-01), Schlaikjer
patent: 4804596 (1989-02-01), Ebner et al.
patent: 4957833 (1990-09-01), Daifuku et al.
patent: 5244757 (1993-09-01), Takami et al.
patent: 5256504 (1993-10-01), Okuno et al.

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