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Composite fuel cell membranes

Patent ·
OSTI ID:516913
A bilayer or trilayer composite ion exchange membrane is described suitable for use in a fuel cell. The composite membrane has a high equivalent weight thick layer in order to provide sufficient strength and low equivalent weight surface layers for improved electrical performance in a fuel cell. In use, the composite membrane is provided with electrode surface layers. The composite membrane can be composed of a sulfonic fluoropolymer in both core and surface layers.
Research Organization:
General Motors Corp
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC02-90CH10435
Assignee:
Dow Chemical Co., Midland, MI (United States)
Patent Number(s):
US 5,654,109/A/
Application Number:
PAN: 8-497,438
OSTI ID:
516913
Country of Publication:
United States
Language:
English

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