Metal working – Method of mechanical manufacture – Electrical device making
Patent
1995-05-19
1997-03-04
Maples, John S.
Metal working
Method of mechanical manufacture
Electrical device making
429254, H01M 1038
Patent
active
056074859
ABSTRACT:
A flexible polymeric film useful as an interelectrode separator or electrolyte member in electrolytic devices, such as rechargeable batteries, comprises a copolymer of vinylidene fluoride with 8 to 25% hexafluoropropylene. The film may be cast or formed as a self-supporting layer retaining about 20% to 70% of a high-boiling solvent plasticizer or plasticizer mixture comprising such solvents as ethylene carbonate, propylene carbonate, dimethyl carbonate, and dibutyl phthalate. The film may be used in such form or after extracting of the retained plasticizer with a film-inert low-boiling solvent to provide a separator member into which a solution of electrolytic salt is subsequently imbibed to displace retained plasticizer or replace plasticizer previously extracted from the polymeric matrix.
REFERENCES:
patent: 4849144 (1989-07-01), McLoughlin
patent: 5429891 (1995-07-01), Gozdz et al.
Feuillade, G. "Ion-Conductive Macromolecular . . . Lithium Cells", J. of App. Electrochem, 5 (1995) (no month) pp. 63-69.
Gozdz Antoni S.
Schmutz Caroline N.
Tarascon Jean-Marie
Warren Paul C.
Bell Communications Research Inc.
Maples John S.
White Lionel N.
LandOfFree
Method of making polymeric electrolytic cell separator membrane does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of making polymeric electrolytic cell separator membrane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making polymeric electrolytic cell separator membrane will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2143214