Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Patent
1994-04-28
1996-10-01
Willis, Jr., Prince
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
H01M 1040
Patent
active
055610056
ABSTRACT:
A secondary battery having a non-aqueous electrolyte according to the present invention includes a negative electrode using a carbonaceous material capable of doping and undoping lithium ions as the anode material, a positive electrode using a composite oxide of lithium and-a transition metal as the cathode material, and a non-aqueous electrolyte formed by dissolving an electrolyte into a non-aqueous solvent, the non-aqueous solvent containing methylethyl carbonate and dimethyl carbonate. According to the present invention, a secondary battery having a non-aqueous electrolyte in which normal charge/discharge reactions can be maintained even in battery overcharge and after high-temperature storage of the charged battery, and which exhibits high energy density, long cycle life, high safety performance and excellent environment-resistance, can be produced.
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Fujita Shigeru
Hihara Akio
Omaru Atsuo
Yokoyama Keiichi
Chaney Carol
Mitsui Petrochemical Industries Ltd.
Sony Corporation
Willis Jr. Prince
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