Sulfonated polymers for solid polymer electrolytes
AssigneeMaxdem Incorporated
InventorsNaoya Ogata, Masahiro Rikukawa
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Abstract
Sulfonated polyphenylene solid polymer electrolytes having high proton conductivity are provided, which are stable and which maintain high conductivity at temperatures of 100.degree. C. and above. These membranes are useful as solid polymer electrolytes for fuel cells and can be operated above the boiling point of water.
Claims12
An ion exchange structure comprising:
- a solid polymer electrolyte comprising a rigid-rod polyphenylene which has been sulfonated to contain from 1% to 30% by weight sulfur;
- and
- at least one electrode in electrical contact with the electrolyte.
A fuel cell comprising an anode, a cathode, means for introduction of fuel to the anode, means for introduction of oxidant to the cathode, and a solid polymer electrolyte comprising a rigid-rod polyphenylene which has been sulfonated to contain from 1% to 30% by weight sulfur for providing electrolytic contact between the anode and cathode.
Dependencies are inferred from the claim text.