Title:
GAS DIFFUSION ELECTRODE, FUEL CELL, AND TRANSPORTATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/190153
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a gas diffusion electrode which reduces electrical resistance in a thickness direction without impairing gas diffusibility, and improves power generation performance when used in a fuel cell. The present invention relates to a gas diffusion electrode having a microporous layer on at least one surface of a conductive porous substrate. The gas diffusion electrode is characterized in that the microporous layer includes carbon black and graphite particles with an aspect ratio of 10 or more, and the ratio of the thickness of a portion in which the microporous layer is sunk of the conductive porous substrate to the thickness of a portion in which the microporous layer is not sunk of the conductive porous substrate is 5-20% inclusive.
Inventors:
TAKEUCHI TAKASHI (JP)
UTSUNOMIYA MASAMICHI (JP)
OTAKE HIROAKI (JP)
WATANABE FUMITAKA (JP)
UTSUNOMIYA MASAMICHI (JP)
OTAKE HIROAKI (JP)
WATANABE FUMITAKA (JP)
Application Number:
PCT/JP2023/011805
Publication Date:
October 05, 2023
Filing Date:
March 24, 2023
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
H01M4/96; H01M4/86; H01M8/00; H01M8/04; H01M8/10
Domestic Patent References:
| WO2013172174A1 | 2013-11-21 | |||
| WO2020066191A1 | 2020-04-02 |
Foreign References:
| JP2021136056A | 2021-09-13 | |||
| JP2008059917A | 2008-03-13 |
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