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Title:
TOTALLY SOLID SECONDARY CELL
Document Type and Number:
WIPO Patent Application WO1990007198
Kind Code:
A1
Abstract:
This invention provides a totally solid secondary cell in which an oxide film of a laminated structure represented by the general formula (V2?O5?)x.(A)y.zH2?O (where x + y = 1, 0 < y 0.5, z = 0.1 to 1.6, and A denotes one or more oxides selected from GeO2?, SiO2?, B2?O3?, MoO3?, WO3?, Nb2?O5?, TeO2?, Bi2?O3?, Cr3?O8? and ZrO2?) serves as a positive electrode active material (1), lithium or a lithium alloy serves as a negative electrode active material (2), and an oligoalkyleneoxypolyphosphazene polymer serves as an electrolyte (3). The cell causes neither dendrite formation nor liquid leakage, exhibits excellent charge-discharge characteristics, and can be safely used over a wide temperature range.

Inventors:
INUBUSHI AKIYOSHI (JP)
NAKACHO YOSHIFUMI (JP)
TADA YUJI (JP)
Application Number:
PCT/JP1989/001252
Publication Date:
June 28, 1990
Filing Date:
December 14, 1989
Export Citation:
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Assignee:
OTSUKA KAGAKU KK (JP)
International Classes:
C08G79/02; C08G79/025; C08L85/02; H01M4/48; H01M4/485; H01M10/052; H01M10/0565; H01M10/36; H01M4/131; (IPC1-7): C08G79/02; C08L85/02; H01M4/58; H01M10/40
Foreign References:
JPS62274555A1987-11-28
JPH06191868A1994-07-12
JPS62296375A1987-12-23
JPS61254626A1986-11-12
Other References:
J. Am. Chem. Soc., Vol.106, (1984), P.M. BLONSKUY et al. (Polyphosphazene Solid Electrolytes), p.6854-6855
See also references of EP 0414902A4
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