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US 7,550,216 B2Granted
Composite solid polymer electrolyte membranes
AssigneeFoster-Miller, Inc.
InventorsDavid Ofer, Bindu R. Nair, Emily J. Stoler, Robert F. Kovar
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Abstract
The present invention relates to composite solid polymer electrolyte membranes (SPEMs) which include a porous polymer substrate interpenetrated with a water soluble ion-conducting material. SPEMs of the present invention are useful in electrochemical applications, including fuel cells and electrodialysis.
Claims40
A composite solid polymer electrolyte membrane (SPEM) comprising a porous polymer substrate interpenetrated with a water soluble ion-conducting material, wherein
- (i) the porous polymer substrate comprises a homopolymer or copolymer of a liquid crystalline polymer and
- (ii) the ion-conducting material comprises a water soluble homopolymer or water soluble copolymer of at least one of a sulfonated ion-conducting aromatic polymer.
Dependencies are inferred from the claim text.