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 JP7129751
Kind Code:
B2
Abstract:
The present invention provides a carbon sheet that has excellent anti-flooding ability and can be used suitably ill a gas diffusion electrode base material. Another aspect of the present invention provides a gas diffusion electrode base material using this carbon sheet as the base material, and a fuel cell containing this gas diffusion electrode. This carbon sheet is a porous carbon sheet containing a carbon fiber and a binding material and is characterized in that: layers are obtained in a section spanning from a plane closest to one of the surfaces and having 50% of the mean fluorine intensity to a plane closest to the other surface and having 50% of the mean fluorine intensity by dividing this section evenly into three in an orthogonal direction to the carbon sheet plane; among the layer close to one of the surfaces and the layer close to the other surface, the layer having the larger layer mean fluorine intensity is designated layer X, the layer having the smaller one is designated layer Y, and the layer between the layer X and the layer Y is designated layer Z; and the layer mean fluorine intensities decrease in the order: layer X, layer Y, and layer Z.
Inventors:
Utsunomiya Masamichi
Katsuya Sode
Hashimoto Masaru
Toshiya Kamae
Katsuya Sode
Hashimoto Masaru
Toshiya Kamae
Application Number:
JP2015552703A
Publication Date:
September 02, 2022
Filing Date:
October 07, 2015
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
H01M4/96
Domestic Patent References:
| JP2008511119A | ||||
| JP2005190702A | ||||
| JP2006120506A | ||||
| JP2014232691A |
Foreign References:
| WO2014030553A1 |
Other References:
Handbook of Fuel Cells-Fundamentals,Technology and Applications,Volume3:Fuel Cell Technology and Applications,2013,Chapter46,pp.1-21