Separator material for storage batteries and method for making t

Details Separator material for storage batteries and method for making t Separator material for storage batteries and method for making t

1991-03-25

1993-04-20

Chaudhuri, Olik

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

429250, 429251, C08F22806, C08F22606

Patent

active

052041972

ABSTRACT:
Conjugate fibers using, as a surface component, ethylene copolymer containing a unit represented by a formula --CH.sub.2 --CH(COOH)--, and using, as a core component, polypropylene or like polyolefin fibers, are used to obtain thermally bonded non-woven fabric sheet to the treated with concentrated sulfuric acid or the like. By so doing, it is possible to readily introduce sulfo groups to replace tertiary carbon and thus impart the fibers with hydrophilicity. By using thus sulfonated thermal bonded non-woven fabric sheet as alkaline storage battery separators, it is possible to maintain high discharge capacity retention.

REFERENCES:
patent: 3998871 (1976-12-01), Carlson
patent: 4110143 (1978-08-01), Cogliano et al.
patent: 4384032 (1983-05-01), Tashiro et al.
Chemical Abstract 100:211254 (1984).

Affiliated with

Also associated with

Rating

Separator material for storage batteries and method for making t does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Separator material for storage batteries and method for making t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separator material for storage batteries and method for making t will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1525185