Title:
多孔質電極基材、その製造方法、膜-電極接合体、および固体高分子型燃料電池
Document Type and Number:
Japanese Patent JP5404609
Kind Code:
B2
Abstract:
Provided is a porous electrode substrate having high mechanical strength, good handling properties, high thickness precision, little undulation, and adequate gas permeability and conductivity. Also provided is a method for producing a porous electrode substrate at low costs. A porous electrode substrate is produced by joining short carbon fibers (A) via mesh-like of carbon fibers (B) having an average diameter of 4 µm or smaller. Further provided are a membrane-electrode assembly and a polymer electrolyte fuel cell that use this porous electrode membrane. A porous electrode substrate is obtained by subjecting a precursor sheet, in which short carbon fibers (A) and short carbon fiber precursors (b) having an average diameter of 5 µm or smaller have been dispersed, to carbonization treatment after optional hot press forming and optional oxidization treatment.
More Like This:
Inventors:
Kazuhiro Sumioka
Yoshihiro Sako
Yoshihiro Sako
Application Number:
JP2010506747A
Publication Date:
February 05, 2014
Filing Date:
February 02, 2010
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
H01M4/96; C04B38/00; D04H1/4242; D21H13/50; D21H15/02; H01M4/88; H01M8/10
Domestic Patent References:
| JPH06123050A | 1994-05-06 | |||
| JPS63222078A | 1988-09-14 | |||
| JP2007273466A | 2007-10-18 | |||
| JP2006040885A | 2006-02-09 | |||
| JP2006004858A | 2006-01-05 | |||
| JP2002270191A | 2002-09-20 | |||
| JP2006040886A | 2006-02-09 |
Foreign References:
| WO2006003950A1 | 2006-01-12 |
Attorney, Agent or Firm:
Akio Miyazaki
Ishibashi Masayuki
Masaaki Ogata
Shuichi Sugimori
Ishibashi Masayuki
Masaaki Ogata
Shuichi Sugimori