Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Making catalytic electrode – process only
Reexamination Certificate
2006-08-15
2006-08-15
Lorengo, J. A. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Making catalytic electrode, process only
C502S185000, C427S115000, C156S087000, C156S247000
Reexamination Certificate
active
07091149
ABSTRACT:
A fuel cell provides a high output at a high current density. The fuel cell has an anode electrode and a cathode electrode comprising a gas diffusion layer, a water-repellent layer disposed on the gas diffusion layer and containing a carbon material and polytetrafluoroethylene, and an electrode catalyst layer disposed on the water-repellent layer and containing a carbon material carrying a catalyst. The electrode catalyst layer has maximum and minimum thicknesses that differ from each other by less than 30 μm. The electrode catalyst layer has cracks whose area is less than 10% of a total area of the electrode catalyst layer.
REFERENCES:
patent: 4377496 (1983-03-01), Solomon
patent: 4446210 (1984-05-01), Okada et al.
patent: 4501803 (1985-02-01), Bannochie
patent: 4568442 (1986-02-01), Goldsmith
patent: 4810594 (1989-03-01), Bregoli et al.
patent: 4816106 (1989-03-01), Turris et al.
patent: 5328542 (1994-07-01), Grasso et al.
patent: 5525436 (1996-06-01), Savinell et al.
patent: 5538585 (1996-07-01), Wakita et al.
patent: 5770172 (1998-06-01), Linehan et al.
patent: 5843519 (1998-12-01), Tada
patent: 5863673 (1999-01-01), Campbell et al.
patent: 6127059 (2000-10-01), Kato
patent: 6187468 (2001-02-01), Shinkai et al.
patent: 6524736 (2003-02-01), Sompalli et al.
patent: 6627035 (2003-02-01), Fan et al.
patent: 6605381 (2003-08-01), Rosenmayer
patent: 6713424 (2004-03-01), Stumper et al.
patent: 6716551 (2004-04-01), Peinecke et al.
patent: 6723464 (2004-04-01), Tabata et al.
patent: 6787183 (2004-09-01), Iwasaki et al.
patent: 6855178 (2005-02-01), Uchida et al.
patent: 195 44 323 (1997-06-01), None
patent: 60-170168 (1985-09-01), None
Iwasaki Kazuhiko
Miyama Takeshi
Ohba Tsugio
Onodera Minako
Hailey Patricia L.
Honda Giken Kogyo Kabushiki Kaisha
Lahive & Cockfield LLP
Laurentano, Esq. Anthony A.
Lorengo J. A.
LandOfFree
Electrode for fuel cell, method of manufacturing same, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrode for fuel cell, method of manufacturing same, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrode for fuel cell, method of manufacturing same, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3678068