Title:
POLYMER ELECTROLYTE MEMBRANE, ELECTROLYTE MEMBRANE WITH CATALYST LAYER USING THE SAME, MEMBRANE ELECTRODE COMPOSITE, POLYMER ELECTROLYTE FUEL CELL, AND WATER ELECTROLYSIS TYPE HYDROGEN GENERATOR
Document Type and Number:
Japanese Patent JP2022167820
Kind Code:
A
Abstract:
To achieve a polymer electrolyte membrane having excellent proton conductivity even in low humidity conditions and also having excellent mechanical strength and chemical stability.SOLUTION: There is provided a polymer electrolyte membrane comprising a block copolymer having one or more, respectively, of ionic segments and non-ionic segments. The block copolymer has an ion exchange capacity (meq/g) of more than 2.0 and less than 3.1, the polymer electrolyte membrane has a co-continuous phase separation structure, an average period size (nm) of the co-continuous phase separation structure as observed by a transmission electron microscope is less than 110 nm, and the average period size (nm) and the ion exchange capacity (meq/g) of the co-continuous phase separation structure satisfy a relationship, average period size (nm)/ion exchange capacity (meq/g)≥21.SELECTED DRAWING: None
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Inventors:
MURAKAMI KAZUHO
MATSUI KAZUNAO
TANAKA TAKESHI
IZUHARA DAISUKE
MATSUI KAZUNAO
TANAKA TAKESHI
IZUHARA DAISUKE
Application Number:
JP2022068034A
Publication Date:
November 04, 2022
Filing Date:
April 18, 2022
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
H01M8/1067; C08G65/40; C25B1/04; C25B9/00; C25B9/23; C25B13/04; C25B13/08; H01B1/06; H01M8/10; H01M8/1025