Title:
GAS DIFFUSION ELECTRODE SUBSTRATE, METHOD FOR PRODUCING SAME, GAS DIFFUSION ELECTRODE, MEMBRANE-ELECTRODE ASSEMBLY, AND SOLID POLYMER FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2020/213324
Kind Code:
A1
Abstract:
To provide a gas diffusion electrode substrate having a high thermal conductivity even with a low density and having excellent handleability and power generation performance, there is provided a gas diffusion electrode substrate which includes a carbon fiber felt composed of carbon fibers having an average fiber diameter of 5-20 μm, wherein at least a portion of the carbon fibers constituting the carbon fiber felt has a flat portion where the maximum fiber diameter is observed 10-50% thicker than the average fiber diameter, when viewing the carbon fiber felt surface from the top, and the number of the flat portions on the surface of the carbon fiber felt is 50-200/mm2.
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Inventors:
UTSUNOMIYA MASAMICHI (JP)
SHIMOYAMA SATORU (JP)
WATANABE FUMITAKA (JP)
SHIMOYAMA SATORU (JP)
WATANABE FUMITAKA (JP)
Application Number:
PCT/JP2020/011370
Publication Date:
October 22, 2020
Filing Date:
March 16, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D04H1/4242; H01M4/86; H01M4/88; H01M8/10
Domestic Patent References:
| WO2002042534A1 | 2002-05-30 | |||
| WO2004031465A1 | 2004-04-15 |
Foreign References:
| JP2018084010A | 2018-05-31 | |||
| JP2004027435A | 2004-01-29 | |||
| JP2004308098A | 2004-11-04 | |||
| JP2011195374A | 2011-10-06 | |||
| JP2004511672A | 2004-04-15 |
Other References:
See also references of EP 3957789A4
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