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US 8,008,404 B2Granted
Composite membrane
AssigneeGM Global Technology Operations LLC
InventorsSean M MacKinnon, Timothy J. Fuller
Life of this patent
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Abstract
A composite membrane for fuel cell applications includes a support substrate with a predefined void volume. The void volume is at least partially filled with an ion conducting polymer composition. Characteristically, the ion conducting polymer composition includes a first polymer with a cyclobutyl moiety and a second polymer that is different than the first polymer.
Claims11
A composite membrane for use in an electrochemical cell, the composite membrane comprising:
- a support structure having a predetermined void volume;
- and
- a polymeric electrolyte composition contacting the support structure, the polymeric electrolyte composition comprising:
- a first polymer comprising a perfluorocyclobutyl moiety;
- and
- a second polymer that is different than the first polymer.
3 more elements
Dependencies are inferred from the claim text.