ELECTROLYTE MEMBRANE AND METHOD FOR PRODUCING SAME

To provide an electrolyte membrane that exhibits high proton conductivity even at low humidity.The electrolyte membrane comprises a composite membrane comprising: a microporous polyolefin membrane that has an average pore diameter of 1 to 1000 nm and a porosity of 50 to 90% and that can be impregnat...

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Bibliographic Details
Main Authors TOMATSU, Jin, OHASHI, Hidenori, NANBU, Mami, OSHIBA, Yuhei, FURUYA, Koji, OHNO, Takao, YAMAGUCHI, Takeo
Format Patent
LanguageEnglish
French
German
Published 22.11.2023
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS
METALLURGY
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Summary:To provide an electrolyte membrane that exhibits high proton conductivity even at low humidity.The electrolyte membrane comprises a composite membrane comprising: a microporous polyolefin membrane that has an average pore diameter of 1 to 1000 nm and a porosity of 50 to 90% and that can be impregnated with a solvent having a surface free energy of 28 mJ/m2 or more; and an electrolyte containing a perfluorosulfonic acid polymer having an EW of 250 to 850 loaded into the pores of the microporous polyolefin membrane; wherein the membrane thickness of the composite membrane is 1 to 20 µm.
Bibliography:Application Number: EP20230201180