Metal working – Method of mechanical manufacture – Electrical device making
Patent
1997-05-27
1999-07-27
Nuzzolillo, Maria
Metal working
Method of mechanical manufacture
Electrical device making
296231, 429189, 429305, H01M 1038, H01M 1040
Patent
active
059283912
ABSTRACT:
A method for production of porous electrodes and separators in polymer type electrochemical cells and batteries wherein electrodes and separator elements are mixed with polymeric filler materials such as dibutyl phthalate (DBP). The polymeric filler material is then removed to provide the requisite porosity for the electrodes and separator. The polymeric filler material, normally removed by use of volatile solvents, is instead removed by extraction with supercritical fluids, such as CO.sub.2, which do not result in any hazardous residue or gases.
REFERENCES:
patent: 4190707 (1980-02-01), Doi et al.
patent: 5028363 (1991-07-01), Nishio et al.
patent: 5034132 (1991-07-01), Miyakawa et al.
patent: 5281491 (1994-01-01), Rein et al.
patent: 5296318 (1994-03-01), Gozdz et al.
patent: 5540741 (1996-07-01), Gozdz et al.
patent: 5690703 (1997-11-01), Mitchell et al.
Chaney Carol
Nuzzolillo Maria
Ultralife Batteries Inc.
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