Title:
GEL-FORMING BATTERY SEPARATOR
Document Type and Number:
WIPO Patent Application WO2002007237
Kind Code:
A3
Abstract:
Gel-forming battery separators and methods for constructing them. Particles are embedded into pores of a porous support to form a composite. The chemical make-up of surfaces of the particles includes a silanol group. The composite, when contacted with an effective amount of liquid electrolyte, is capable of forming a gelled matrix that includes electrolyte residing within the porous support. Batteries and methods of forming batteries featuring gel-forming separators are also disclosed. No pre-mixing of siliceous material with electrolyte is required facilitating battery construction.
Inventors:
FERREIRA ANTHONY L (US)
LIFSHUTZ NORMAN (US)
CHOI WAI MING (US)
LIFSHUTZ NORMAN (US)
CHOI WAI MING (US)
Application Number:
PCT/US2001/022090
Publication Date:
August 01, 2002
Filing Date:
July 13, 2001
Export Citation:
Assignee:
HOLLINGSWORTH & VOSE CO (US)
FERREIRA ANTHONY L (US)
LIFSHUTZ NORMAN (US)
CHOI WAI MING (US)
FERREIRA ANTHONY L (US)
LIFSHUTZ NORMAN (US)
CHOI WAI MING (US)
International Classes:
H01M10/10; H01M50/437; H01M50/443; (IPC1-7): H01M2/16; H01M10/10
Foreign References:
| US4150199A | 1979-04-17 | |||
| US4317872A | 1982-03-02 | |||
| US1383190A | 1921-06-28 | |||
| US3351495A | 1967-11-07 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31)
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