Organic sulfate additives for nonaqueous electrolyte in alkali m

Details Organic sulfate additives for nonaqueous electrolyte in alkali m Organic sulfate additives for nonaqueous electrolyte in alkali m

1998-01-20

2000-01-11

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429220, 4292315, 4292319, 429328, 429329, 429330, 429332, 429333, 429334, 429345, H01M 614

Patent

active

060133945

ABSTRACT:
An alkali metal, solid cathode, nonaqueous electrochemical cell capable of delivering high current pulses, rapidly recovering its open circuit voltage and having high current capacity, is described. The stated benefits are realized by the addition of at least one organic sulfate additive to an electrolyte comprising an alkali metal salt dissolved in a mixture of a low viscosity solvent and a high permittivity solvent. A preferred solvent mixture includes propylene carbonate, dimethoxyethane and a dialkyl sulfate additive.

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Derwent abstract of JP 09245833 A, by Mitsubishi Chem (assignee), Sep. 19, 1997.

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