Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Patent
1991-10-10
1993-06-15
Chaudhuri, Olik
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
429191, 429218, 252 622, 252500, H01M 618
Patent
active
052196810
ABSTRACT:
A lithium cell having excellent discharging and recharging characteristics is proposed which is characteristic in the unique formulation of the polymeric solid electrolyte composition having a high ionic conductivity to fill the space between the anode and the cathode. The electrolyte composition comprises: (a) a block copolymer of styrene and 4-hydroxystyrene, of which the phenolic hydroxy groups in the 4-hydroxystyrene moiety are substituted by the grafting chains of poly(ethylene oxide) moiety having a specified chain length, (b) an ionic lithium salt and (c) a poly(ethylene oxide) in a specified weight proportion.
REFERENCES:
patent: 4556614 (1985-12-01), le Mehaute et al.
patent: 5112512 (1992-05-01), Nakamura
Polyphosphazene-Poly(Olefin Oxide) Mixed Polymer Electrolyte, Abraham et al., from the Journal of the Electrochemical Society, vol. 36, No. 12 Dec. '89.
Nakanishi Toru
Takamizawa Minoru
Watanabe Osamu
Yamada Motoyuki
Chaudhuri Olik
Nuzzolillo M.
Shin-Etsu Chemical Co. , Ltd.
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