Title:
MEMBRANE ELECTRODE ASSEMBLY, SOLID POLYMER ELECTROLYTE MEMBRANE, WAER ELECTROLYSIS SYSTEM AND ELECTROLYTIC HYDROGENATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/050363
Kind Code:
A1
Abstract:
The present invention provides: a membrane electrode assembly capable of suppressing increase in the electrolysis voltage if used in a water electrolysis system or an electrolytic hydrogenation system even in cases where the current density has increased; a solid polymer electrolyte membrane; a water electrolysis system; and an electrolytic hydrogenation system. A membrane electrode assembly according to the present invention comprises an anode that has a catalyst layer, a cathode that has a catalyst layer, and a solid polymer electrolyte membrane that is arranged between the anode and the cathode; the solid polymer electrolyte membrane contains a woven fabric and a fluorine-containing polymer that has an ion exchange group; the aperture ratio of the woven fabric is 50% or more; and the ratio TAAVE/TBAVE, which is calculated from the average maximum film thickness TAAVE and the average minimum film thickness TBAVE of the solid polymer electrolyte membrane, is 1.20 or more.
Inventors:
HAYABE SHINTARO (JP)
SUMIKURA KOSUKE (JP)
NISHIO TAKUO (JP)
SUMIKURA KOSUKE (JP)
NISHIO TAKUO (JP)
Application Number:
PCT/JP2021/032352
Publication Date:
March 10, 2022
Filing Date:
September 02, 2021
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
C25B9/23; C25B13/02; C25B13/04; C25B13/08
Domestic Patent References:
| WO2018139028A1 | 2018-08-02 | |||
| WO2020162511A1 | 2020-08-13 |
Foreign References:
| JP2016065286A | 2016-04-28 | |||
| JPH04308096A | 1992-10-30 | |||
| JP2013163859A | 2013-08-22 | |||
| JP2018513912A | 2018-05-31 | |||
| JP2020148732A | 2020-09-17 |
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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