Non-aqueous electrolyte secondary battery

Details Non-aqueous electrolyte secondary battery Non-aqueous electrolyte secondary battery

1992-03-13

1994-02-08

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429218, H01M 1040

Patent

active

052847225

ABSTRACT:
A non-aqueous electrolyte secondary battery, including positive and negative electrodes formed of a composite metal oxide and carbon, respectively, in which charge and discharge are conducted by doping and undoping of Li in a Li-carbon intercalation compound is provided. The non-aqueous electrolyte secondary battery includes an electrolyte. The electrolyte is dissolved in a solvent mixture of propylene carbonate with an ester compound. The ester compound can include, for example, butyl acetate, butyl propionate, butyl lactate, and methyl valerate. Due to the high boiling point of the ester compounds, excellent cycle characteristics for the non-aqueous electrolyte secondary battery can be obtained in high temperature environments.

REFERENCES:
patent: 4751160 (1988-06-01), Plichta et al.
patent: 4980250 (1990-12-01), Takahashi et al.
patent: 5053297 (1991-10-01), Yamahira et al.
patent: 5093216 (1992-03-01), Azuma et al.
patent: 5169736 (1992-12-01), Bittihn et al.

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