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U.S. Department of Energy
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Membrane catalyst layer for fuel cells

Patent ·
OSTI ID:6218129
A solid polymer electrolyte membrane assembly is described for separating anodic and cathodic electrode backings in a gas reaction fuel cell, wherein the improvement consists essentially of a solid polymer electrolyte membrane and a composite film of a supported platinum catalyst and a proton conducting ionomer with a thickness less than about 10 [mu]m, said catalyst being uniformly dispersed therein with a platinum loading less than about 0.35 mgPt/cm[sup 2], where said film is bonded to said solid polymer electrolyte membrane.
Assignee:
Univ. of California, Oakland, CA (United States)
Patent Number(s):
A; US 5234777
Application Number:
PPN: US 7-736876
OSTI ID:
6218129
Country of Publication:
United States
Language:
English