Method of forming a separator for alkaline electrolyte secondary

Details Method of forming a separator for alkaline electrolyte secondary Method of forming a separator for alkaline electrolyte secondary

1997-10-02

2000-03-28

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

429249, H01M 216

Patent

active

060429704

ABSTRACT:
An alkaline electrolyte secondary electric cell comprises at least one positive electrode and one negative electrode positioned either side of a separator composed of polyolefin fibers grafted with a vinyl monomer. The cell contains a device for absorbing and retaining nitrogen in a strongly basic medium, with a pH of at least 12. This device is constituted by the separator. A vinyl monomer solution is forced into the pores of the separator by drawing the solution through the separator, for example by using a suction pump.

REFERENCES:
patent: 5798189 (1998-08-01), Hayashida et al.
Patent Abstracts of Japan, vol. 017, No. 683 (E-1477), Dec. 15, 1993 corresponding to JP 05 234577 A (Yuasa Corp) dated Sep. 10, 1993.

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