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US 7,125,626 B2Granted
Ion exchange assembly for an electrochemical cell
AssigneeJapan Gore-Tex, Inc.
InventorHiroshi Kato
Life of this patent
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Abstract
This invention provides a solid polymer ion exchange membrane/electrode assembly, or an electrode/solid polymer ion exchange membrane/electrode assembly, for an electrochemical cell, which consists of planar layers of materials intimately joined together to form a unitary structure. The layers are joined together by solid polymer ion exchange resin present in at least one of each pair of adjacent layers. The unitary assembly can be used in an electrochemical cell such as a battery, electrolytic reactor, or fuel cell.
Claims21
A unitary assembly for an electrochemical cell comprising:
- an electrode having at least one electrically conductive material and a membrane support comprising polytetrafluoroethylene, said support being impregnated with a polymer ion exchange resin and having a surface, and
- a layer of ionomer joined to the electrode at said surface having a polymer ion exchange resin.
Dependencies are inferred from the claim text.