H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 8/10 (2006.01) C08J 5/22 (2006.01) C08K 5/01 (2006.01) C08L 27/16 (2006.01) C08L 41/00 (2006.01) H01M 8/04 (2006.01)
Patent
CA 2272866
A polymer electrolyte membrane (18) composed of polystyrene sulfonic acid (PSSA) and poly(vinylidene fluoride) (PVDF) is provided. This membrane (18) exhibits low methanol crossover which translates to higher fuel and fuel cell efficiencies. A fuel cell (10) comprising a PSSA-PVDF membrane (18) is also provided. Further, methods of decreasing the fuel crossover rate, enhancing fuel cell efficiency, and enhancing electrical performance of a fuel cell are provided.
La présente invention concerne une membrane d'électrolyte polymère composée d'un acide polystyrène sulfonique (PSSA) et d'un poly(fluorure de vinylidène) (PVDF). Cette membrane présente une faible perméation par le méthanol ce qui aboutit à de plus grands rendements du combustible et des piles à combustible. La présente invention concerne également une pile à combustible comportant une membrane PSSA-PVDF. Elle concerne, en outre, des procédés de réduction du coefficient de perméation du combustible, d'amélioration de l'efficacité d'une pile à combustible et d'amélioration des performances électriques d'une pile à combustible.
Halpert Gerald
Narayanan S.r.
Olah George A.
Prakash G.k. Surya
Smart Marshall C.
California Institute Of Technology
Mbm Intellectual Property Law Llp
The University Of Southern California
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