Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Patent
1998-06-22
2000-04-18
Nuzzolillo, Maria
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer or spacer insulating structure
429247, 429249, H01M 216, H01M 218
Patent
active
060513357
ABSTRACT:
A battery separator of a nonwoven substrate coated on at least one surface with a cellulose film made from a liquid cellulose or cellulose derivative solution with the substrate having at least 50% by wt. noncellulosic fibers having a noncircular cross-sectional perimeter which has a percentage cross-sectional area difference relative to a circumscribed circle according to the formula: ##EQU1## wherein A=Area of a noncellulosic fiber cross-section; and B=Area of a circle circumscribing said fiber cross-section and, preferably, having an absorption rate of at least 15, most preferably at least 30 mm/10 min. in an aqueous solution of 40 wt. % KOH.
REFERENCES:
patent: 3463669 (1969-08-01), Jammet
patent: 3980497 (1976-09-01), Gillman et al.
patent: 4234623 (1980-11-01), Moshtev et al.
patent: 4378414 (1983-03-01), Furukawa et al.
patent: 4741979 (1988-05-01), Faust et al.
patent: 4767687 (1988-08-01), LaBonte
patent: 4812145 (1989-03-01), LaBonte
patent: 5366832 (1994-11-01), Hayashi et al.
patent: 5426004 (1995-06-01), Bayles et al.
patent: 5462820 (1995-10-01), Tanaka
patent: 5634914 (1997-06-01), Wilkes et al.
patent: 5700599 (1997-12-01), Danko et al.
patent: 5700600 (1997-12-01), Danko et al.
patent: 5942354 (1999-08-01), Oxley et al.
Danko, Thomas: "Properties of Cellulose Separators for Alkaline Secondary Batteries;" Proceedings of the 10.sup.th Annual Battery Conference on Applications and Advances, pp. 261-264 (Institute of Electrical and Electronics Engineers, Inc. Jan. 10-13, 1995).
Danko, Thomas et al.; "Ionic Resistance Measurements of Battery Separators;" Proceedings of the 12.sup.th Annual Battery Conference on Applications and Advances, pp. 97-98 (Institute of Electrical and Electronics Engineers, Inc. Jan. 14-17, 1997).
"Proceedings of Advances in Battery Technology Symposium", Dec. 6, 1968, pp. 72, 73 and 78 (The Electrochemical Society, Inc.).
Stanley E. Ross, "Nonwovens: An Overview" Chemtech, pp. 535-539, (Sep. 1972).
Harald Hoffmann, "Manufacture and Use of Nonwoven Separators", Batteries International, pp. 44-45 and 48 (Oct., 1995).
Danko Thomas
Dinh-Sybeldon Ann
Oxley Jeffery Allen
Dove Tracy
Nuzzolillo Maria
Richeson Cedric M.
Viskase Corporation
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