Title:
炭素シート、ガス拡散電極基材、および燃料電池
Document Type and Number:
Japanese Patent JP6743805
Kind Code:
B2
Abstract:
An object of the present invention is to provide a gas diffusion electrode substrate that is highly resistant to deterioration in power generation performance in a high electric current density region, resistant to breakage and structural destruction during conveyance, and suitable for stable production. A porous carbon sheet including at least carbon fibers, having a thickness of 30 to 95 µm, a gas permeation resistance of 0.5 to 8.8 Pa, and a tensile strength of 5 to 50 N/cm, and a gas diffusion electrode substrate including a porous carbon sheet containing at least carbon fibers, at least one surface thereof having a microporous layer containing at least an electric conductive filler, the gas diffusion electrode substrate being dividable in the thickness direction into a smaller pore part and a larger pore part, the larger pore part having a thickness of 3 to 60 µm.
Inventors:
Katsuya Ede
Takashi Senda
Toru Sugawara
Wakatabe Michio
Masaru Hashimoto
Sunahara Tetsuya
Umezaki Tomoya
Takashi Senda
Toru Sugawara
Wakatabe Michio
Masaru Hashimoto
Sunahara Tetsuya
Umezaki Tomoya
Application Number:
JP2017503172A
Publication Date:
August 19, 2020
Filing Date:
December 08, 2016
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
C01B32/05; B32B5/24; B32B27/20; C04B35/532; C04B35/83; D04H1/4242; D21H13/50; H01M4/88; H01M4/96; H01M8/10
Domestic Patent References:
| JP2014167173A | ||||
| JP2002352807A | ||||
| JP2007172953A | ||||
| JP2010257748A | ||||
| JP2013145640A |
Foreign References:
| WO2007037084A1 |