Separator for alkaline storage battery and alkaline storage...

Details Separator for alkaline storage battery and alkaline storage... Separator for alkaline storage battery and alkaline storage...

2005-08-23

2005-08-23

Weiner, Laura (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

C429S254000, C429S142000, C429S129000

Reexamination Certificate

active

06933079

ABSTRACT:
A separator for an alkaline storage battery includes a plurality of polyolefin resins. The polyolefin resins include a first polyolefin resin that is sulfonated, and a second polyolefin resin that is sulfonated. The degree of sulfonation of the first polyolefin resin is different from that of the second polyolefin resin. Thus, a novel separator having high liquid retention properties and high air permeability, and an alkaline storage battery using the same can be obtained.

REFERENCES:
patent: 2002/0187400 (2002-12-01), Matsumoto
patent: 11-144698 (1999-05-01), None
patent: 11-297293 (1999-10-01), None
patent: 2001-076704 (2001-03-01), None

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