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Title: Fuel cell electrolyte membrane with basic polymer

Patent ·
OSTI ID:1014759
 [1];  [2];  [3];  [4];  [5];  [4]
  1. Saint Paul, MN
  2. Little Canada, MN
  3. Cottage Grove, MN
  4. Stillwater, MN
  5. Edina, MN
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The present invention is an electrolyte membrane comprising an acid and a basic polymer, where the acid is a low-volatile acid that is fluorinated and is either oligomeric or non-polymeric, and where the basic polymer is protonated by the acid and is stable to hydrolysis.

Research Organization:
3M Innovative Properties Company
Sponsoring Organization:
USDOE
DOE Contract Number:
FC36-02AL67621
Assignee:
3M Innovative Properties Company (St. Paul, MN)
Patent Number(s):
7,838,138
Application Number:
US Patent Application 11/230,091
OSTI ID:
1014759
Country of Publication:
United States
Language:
English

References (11)

Electrochemical Properties of Perfluoroalkane Disulfonic [HSO[sub 3](CF2)[sub n]SO[sub 3]H] Acids Relevant to Fuel Cell Technology journal January 1992
Novel solid state proton-conductors based on polymeric non-oxy acids. Final report report January 1992
Porous Polybenzimidazole Membranes Doped with Phosphoric Acid:  Highly Proton-Conducting Solid Electrolytes journal February 2004
Novel Proton Exchange Membrane for High Temperature Fuel Cells journal January 1997
Evaluation of Tetrafluoroethane-1,2-Disulfonic Acid as a Fuel Cell Electrolyte journal January 1983
Perfluorosulfonimide as an Additive in Phosphoric Acid Fuel Cell journal January 1989
Preparation of perfluorocarbon polymers containing phosphonic acid groups journal April 1997
Composite Membranes for Medium-Temperature PEM Fuel Cells journal August 2003
Enhanced conductivity in polyanion-containing polybenzimidazoles. Improved materials for proton-exchange membranes and PEM fuel cells journal November 2003
Oxygen Reduction in Tetrafluoroethane-1,2-Disulfonic Acid journal January 1985
Membrane-Supported Nonvolatile Acidic Electrolytes Allow Higher Temperature Operation of Proton-Exchange Membrane Fuel Cells journal January 1997

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