POLYMER ELECTROLYTE MATERIAL, POLYMER ELECTROLYTE MOLDED BODY USING SAME, ELECTROLYTIC MEMBRANE HAVING CATALYST LAYER ATTACHED THERETO, MEMBRANE-ELECTRODE ASSEMBLY, SOLID POLYMER FUEL CELL, AND WATER-ELECTROLYSIS-TYPE HYDROGEN GENERATOR

Title:

Document Type and Number:

WIPO Patent Application WO/2022/202122

Kind Code:

A1

Abstract:

Provided is a polymer electrolyte material which comprises a block copolymer having both of a segment having an ionic group (which is also referred to as an "ionic segment", hereinafter) and a segment containing no ionic group (which is also referred to as a "non-ionic segment", hereinafter), in which the polymer electrolyte material has a phase-separated structure and satisfies at least one of requirement 1 and requirement 2. The saturated crystallization degree of the polymer electrolytic material which is measured by wide-angle X-ray diffraction is 5% to 30% inclusive. The ion exchange capacity (IEC) of the polymer electrolyte material is 1.8 meq/g to 3.0 meq/g inclusive, and the product of the IEC (meq/g) of the polymer electrolyte material and the quantity of heat of crystallization (J/g) of the polymer electrolyte material which is measured by a differential scanning calorimetric method is 35.0 to 47.0 inclusive.　A polymer electrolyte material is provided, which has satisfactory mechanical durability and excellent proton conductivity.

Inventors:

MURAKAMI KAZUHO (JP)
MATSUI KAZUMA (JP)
TANAKA TSUYOSHI (JP)
IZUHARA DAISUKE (JP)

Application Number:

PCT/JP2022/008257

Publication Date:

September 29, 2022

Filing Date:

February 28, 2022

Export Citation:

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Assignee:

TORAY INDUSTRIES (JP)

International Classes:

C08G65/34; C08G65/40; C08G81/00; C08J5/22; C25B1/04; C25B13/04; C25B13/08; H01B1/06; H01B1/12; H01M8/10; H01M8/1018; H01M8/1025; H01M8/1067

Domestic Patent References:

WO2013002274A1	2013-01-03
WO2013027724A1	2013-02-28
WO2013031675A1	2013-03-07
WO2008018487A1	2008-02-14
WO2008018487A1	2008-02-14
WO2013031675A1	2013-03-07

Foreign References:

JP2015095399A	2015-05-18
JP2014071971A	2014-04-21
JP2018110108A	2018-07-12

Other References:

"Annual Review of Physical Chemistry", vol. 41, 1990, pages: 525

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