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US 7,547,733 B2Granted
Composite proton exchange membrane
AssigneeGM Global Technology Operations LLC
InventorsTao Xie, Timothy J. Fuller
Life of this patent
Estimating the term…
Abstract
An organic/inorganic composite proton exchange membrane (PEM) is disclosed. The PEM includes a proton exchange membrane and a particulate inorganic conductor filler material provided in the proton exchange membrane. The particulate inorganic conductor filler material imparts enhanced water retention capabilities to the PEM at high temperatures, as well as enhances the proton conductivity of the PEM.
Claims7
A method of forming an organic/inorganic composite proton exchange membrane, comprising:
- providing a proton exchange membrane;
- providing a filler-forming liquid;
- and
- forming particulate inorganic conductor filler material in said proton exchange membrane by immersing said proton exchange membrane in said filler-forming liquid, and wherein said particulate inorganic conductor filler material comprises SiO2—P2O5 particles.
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A method of forming an organic/inorganic composite proton exchange membrane, comprising:
- providing a proton exchange membrane comprising inverse micelles and non-ionic regions;
- providing a filler-forming mixture comprising Si(OEt)4 and PO(OMe)3, wherein Et is an ethyl group and Me is a methyl group;
- and
- forming particulate inorganic conductor filler material comprising SiO2—P2O5 particles in said inverse micelles of said proton exchange membrane by immersing said proton exchange membrane in said filler-forming mixture.
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Dependencies are inferred from the claim text.