Title:
燃料電池用流体拡散層
Document Type and Number:
Japanese Patent JP2004518242
Kind Code:
A
Abstract:
Fluid diffusion layers with favorable mechanical and electrical properties are prepared for fuel cell electrodes by impregnating a porous carbonaceous web with a carbonizable polymer having pyrrolidone functionality and then carbonizing the pyrrolidone polymer. The polymer having pyrrolidone functionality is stabilized against vaporization by use of an oxidization step prior to carbonization. The fluid diffusion layers are particularly suitable for use as gas diffusion layers in solid polymer electrolyte fuel cells.
Inventors:
Beatty, Paul Dee.
Wilkinson, David Pea.
Kozak, Paul
One, Haijin
Numan, Sheila
Gordon, John Robert
Fon, Kevin Keen-Ben
One-Chun, Sonia Garys
Davis, Michael Todd
Chem, Bien
Ericsson, Lynch.
Wilkinson, David Pea.
Kozak, Paul
One, Haijin
Numan, Sheila
Gordon, John Robert
Fon, Kevin Keen-Ben
One-Chun, Sonia Garys
Davis, Michael Todd
Chem, Bien
Ericsson, Lynch.
Application Number:
JP2002527590A
Publication Date:
June 17, 2004
Filing Date:
September 14, 2001
Export Citation:
Assignee:
Ballard Power Systems Inc.
International Classes:
H01M4/88; C01B31/02; H01M4/86; H01M4/94; H01M4/96; H01M8/02; H01M8/04; H01M8/10; (IPC1-7): H01M4/88; H01M4/86; H01M8/10
Domestic Patent References:
| JPH0917418A | 1997-01-17 | |||
| JPH0887996A | 1996-04-02 | |||
| JPS63254669A | 1988-10-21 |
Other References:
JPN6011030657; 化学大辞典２ 縮刷版, 1963, ｐ．６６９-６７０, 共立出版株式会社
JPN6011030660; 広辞苑 第五版, 1998, ｐ．１５１２
JPN6011030660; 広辞苑 第五版, 1998, ｐ．１５１２
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita