Title:
GAS DIFFUSION ELECTRODE, MICROPOROUS LAYER COATING MATERIAL AND PRODUCTION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/130694
Kind Code:
A1
Abstract:
This gas diffusion electrode comprises a microporous layer on at least one side of a conductive porous substrate, wherein the thickness of the gas diffusion electrode is 30-180 μm and the thickness of the microporous layer is 10-100 μm, and wherein, when the surface of the microporous layer is observed from 4000 fields of view with a 0.25 mm2 surface area, the number of fields of view of said 4000 fields of view in which the maximum height Rz is greater than or equal to 50 μm is 0 to 5. Thus, a gas diffusion electrode is provided which both suppresses damage to the electrolyte membrane caused by the gas diffusion layer and gas diffusion properties of the gas diffusion layer, and which exhibits excellent performance as a fuel cell.
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Inventors:
KATO SHO (JP)
HASHIMOTO MASARU (JP)
WAKATABE MICHIO (JP)
HASHIMOTO MASARU (JP)
WAKATABE MICHIO (JP)
Application Number:
PCT/JP2017/000617
Publication Date:
August 03, 2017
Filing Date:
January 11, 2017
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
H01M4/96; C09D5/24; C09D7/12; C09D201/00; H01M4/86; H01M4/88; H01M8/10
Domestic Patent References:
| WO2015146706A1 | 2015-10-01 | |||
| WO2005081339A1 | 2005-09-01 | |||
| WO2016076132A1 | 2016-05-19 |
Foreign References:
| JP2010108646A | 2010-05-13 | |||
| JP2008277093A | 2008-11-13 | |||
| JP2003100305A | 2003-04-04 | |||
| JP2003100305A | 2003-04-04 | |||
| JPH11273688A | 1999-10-08 | |||
| JP2015138656A | 2015-07-30 |
Other References:
See also references of EP 3410521A4
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