Title:
多孔質電極基材及び、ガス拡散層、及びガス拡散電極とその製造方法
Document Type and Number:
Japanese Patent JP7355143
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a porous electrode substrate for a fuel cell, in which a short circuit or cross leak of a reaction gas hardly occurs and excess binder in a binding part of carbon fiber on a surface of the substrate is sufficiently removed, a gas diffusion layer, and a gas diffusion electrode.SOLUTION: A porous electrode substrate for a solid polymer electrolyte fuel cell is a carbon fiber sheet and is a porous electrode substrate for a solid polymer electrolyte fuel cell having the maximum thickness of a binder adhered to a carbon fiber binding portion on a surface of the sheet is 5 μm or less. The gas diffusion layer for a solid polymer fuel cell is preferably formed by forming a coating layer including carbon powder and a water repellent agent on at least one surface of the porous electrode substrate for a solid polymer electrolyte fuel cell.SELECTED DRAWING: None
Inventors:
Ota Satoshi
Application Number:
JP2022051008A
Publication Date:
October 03, 2023
Filing Date:
March 28, 2022
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
H01M4/86; D04H1/4242; D04H1/587; D06G1/00; H01M4/88; H01M4/96; H01M8/10
Domestic Patent References:
| JP2012204142A | ||||
| JP2009190951A | ||||
| JP2016143468A |
Foreign References:
| WO2016152851A1 |
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