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Title: Composite fuel cell membranes

A bilayer or trilayer composite ion exchange membrane 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.
Inventors:
 [1];  [1];  [2];  [3];  [4];  [2]
  1. (Lake Jackson, TX)
  2. (West Columbia, TX)
  3. (Marble Falls, TX)
  4. (Cypress, TX)
Issue Date:
OSTI Identifier:
871086
Assignee:
Dow Chemical Company (Midland, MI) CHO
Patent Number(s):
US 5654109
Contract Number:
AC02-90CH10435
Research Org:
General Motors Corp
Country of Publication:
United States
Language:
English
Subject:
composite; fuel; cell; membranes; bilayer; trilayer; exchange; membrane; suitable; equivalent; weight; thick; layer; provide; sufficient; strength; surface; layers; improved; electrical; performance; provided; electrode; composed; sulfonic; fluoropolymer; core; thick layer; fuel cell; composite membrane; surface layer; electrode surface; sufficient strength; improved electrical; provide sufficient; exchange membrane; surface layers; composite fuel; cell membrane; membrane suitable; equivalent weight; /429/521/

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