Title:
COMPOSITION FOR FORMING CATALYST LAYER, METHOD FOR PRODUCING CATALYST LAYER USING SAME, GAS DIFFUSION ELECTRODE AND ELECTROLYSIS CELL USING SAME
Document Type and Number:
WIPO Patent Application WO/2024/101085
Kind Code:
A1
Abstract:
A composition for forming a catalyst layer according to the present invention contains catalyst particles, a binder and a solvent; the catalyst particles have an average primary particle diameter of 1 to 500 nm; the solvent has a surface tension within the range of 23 to 33 mN/m; and the solid content concentration of this composition is 1 to 20% by mass. A gas diffusion electrode according to the present invention is provided with a conductive porous base material and a catalyst layer that is formed on the surface of the conductive porous base material; the conductive porous base material has a critical surface tension of less than 29 mN/m; the catalyst layer contains catalyst particles that have an average primary particle diameter of 1 to 500 nm, and a binder; the catalyst layer has a thickness of 10 µm or less; and the proportion of the uncoated part area of the catalyst layer as calculated by means of image analysis is 15% or less.
Inventors:
MASAMOTO WAKANA
KISHIMI YUKO
MIZUTANI TAKUO
KISHIMI YUKO
MIZUTANI TAKUO
Application Number:
PCT/JP2023/037492
Publication Date:
May 16, 2024
Filing Date:
October 17, 2023
Export Citation:
Assignee:
MAXELL LTD (JP)
International Classes:
C25B11/075; B01J23/72; B01J37/08; C25B3/03; C25B9/00; C25B11/052; C25B11/077; C25B11/081; C25B11/091; H01M4/86; H01M4/88; H01M4/90; H01M4/92
Domestic Patent References:
| WO2017154475A1 | 2017-09-14 |
Foreign References:
| JP2007280888A | 2007-10-25 | |||
| JP2011076848A | 2011-04-14 | |||
| JP2004214045A | 2004-07-29 | |||
| JP2009021235A | 2009-01-29 | |||
| JP2013082999A | 2013-05-09 | |||
| JP2006294594A | 2006-10-26 | |||
| JP2005072017A | 2005-03-17 | |||
| JP2018142450A | 2018-09-13 | |||
| JP2016054066A | 2016-04-14 |
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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