Alkaline storage battery

Details Alkaline storage battery Alkaline storage battery

1998-01-29

2000-10-10

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

429247, 429249, H01M 216

Patent

active

06130008&

ABSTRACT:
An alkaline storage battery with improved cycle life and self-discharge characteristics is disclosed. The battery comprises a positive electrode, a negative electrode, a separator and an alkaline electrolyte. For the separator, a material of a woven or nonwoven fabric sheet or a porous film of polyolefine resin of which surfaces have been modified with a hydrophilic compound having a carboxyl group by graft-polymerization. The quantity of carbonates inside the battery is regulated to 150 mg/Ah battery capacity. The quantity of carbonates inside the battery can be regulated to a minimum by optimizing graft polymerization and subsequent washing conditions.

REFERENCES:
patent: 3427206 (1969-02-01), Scardaville et al
patent: 5425865 (1995-06-01), Singletone et al.
patent: 5578400 (1996-11-01), Gineste et al.

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