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AssigneeToray Industries, Inc.
InventorsKenta Minamibayashi, Yoshitsugu Funatsu, Yoko Sakiyama, Daisuke Ogata, Daisuke Izuhara
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The purpose of the present invention is to provide a composite electrolyte membrane which has excellent chemical resistance and can maintain sufficient mechanical strength even under conditions of high humidity and high pressure, which are the operating conditions for electrochemical hydrogen pumps and water electrolyzers. This composite electrolyte membrane, which is for achieving said purpose, has a composite layer obtained by combining a polyelectrolyte with a mesh woven material that satisfies (1) and (2) and comprises liquid crystal polyester fibers or polyphenylene sulfide fibers. (1): Mesh thickness (μm)/fiber diameter (μm)<2.0. (2): Opening (μm)/fiber diameter (μm)>1.0.
A composite electrolyte membrane comprising a composite layer that is a composite of a mesh fabric including a liquid crystal polyester fiber or a polyphenylene sulfide fiber, wherein a fiber that constitutes the mesh fabric has a fiber diameter of 10 μm or more and 50 μm or less, and satisfying conditions (1) and (2) shown below, and a polymer electrolyte, and a layer containing only a polymer electrolyte material in contact with either side or one side of the composite layer:
Dependencies are inferred from the claim text.