Nonaqueous organic electrolytes for low temperature discharge of

Details Nonaqueous organic electrolytes for low temperature discharge of Nonaqueous organic electrolytes for low temperature discharge of

1998-08-13

2000-11-28

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429324, 429327, 429330, 429336, 429338, 429342, 42923195, 252 622, H01M 616

Patent

active

061533386

ABSTRACT:
An alkali metal secondary electrochemical cell, and preferably a lithium ion cell, activated with a quaternary solvent system, is described. The solvent system comprises a quaternary mixture of dialkyl carbonates and cyclic carbonates, and preferably dimethyl carbonate, diethyl carbonate, ethylmethyl carbonate and ethylene carbonate. Lithium ion cells activated with this electrolyte have good room temperature cycling characteristics and excellent low temperature discharge behavior.

REFERENCES:
patent: 4957833 (1990-09-01), Daifuku et al.
patent: 5292601 (1994-03-01), Sugeno et al.
patent: 5478673 (1995-12-01), Funatsu
patent: 5856043 (1999-01-01), Ohsaki et al.
patent: 5962720 (1999-10-01), Gan et al.
patent: 6007947 (1999-12-01), Mayer

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