Passivation-free solid state battery

Details Passivation-free solid state battery Passivation-free solid state battery

1997-05-06

1998-06-16

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429218, 429224, H01M 618, H01M 436

Patent

active

057667969

ABSTRACT:
This invention pertains to passivation-free solid-state rechargeable batteries composed of Li.sub.4 Ti.sub.5 O.sub.12 anode, a solid polymer electrolyte and a high voltage cathode. The solid polymer electrolyte comprises a polymer host, such as polyacrylonitrile, poly(vinyl chloride), poly(vinyl sulfone), and poly(vinylidene fluoride), plasticized by a solution of a Li salt in an organic solvent. The high voltage cathode includes LiMn.sub.2 O.sub.4, LiCoO.sub.2, LiNiO.sub.2 and LiV.sub.2 O.sub.5 and their derivatives.

REFERENCES:
patent: 5219679 (1993-06-01), Abraham et al.
patent: 5429890 (1995-07-01), Pynenburg et al.
patent: 5561007 (1996-10-01), Saidi
patent: 5609975 (1997-03-01), Hasegawa et al.
Ohzuku, T., Ueda, A., and Yamamoto, N., "Zero-Strain Insertion Material of Electrochem. Soc., vol. 142, pp. 1431-1435 (1995), no month.

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