US 7,517,606 B2
	Fuel cells and batteries including metal-carbon composite powders
Toivo T. Kodas, Albuquerque, N. Mex. (US); Mark J. Hampden-Smith, Albuquerque, N. Mex. (US); James Caruso, Albuquerque, N. Mex. (US); Daniel J. Skamser, Albuquerque, N. Mex. (US); and Quint H. Powell, Albuquerque, N. Mex. (US)
Assigned to Cabot Corporation, Boston, Mass. (US)
Filed on Jul. 31, 2002, as Appl. No. 10/209,342.
Application 09/636732 is a division of application No. 09/141397, filed on Aug. 27, 1998, granted, now 6,103,393.
Application 10/209342 is a continuation of application No. 09/636732, filed on Aug. 10, 2000, granted, now 6,870,350.
Application 09/141397 is a continuation in part of application No. 09/030057, filed on Feb. 24, 1998, granted, now 6,338,809.
Application 09/030057 is a continuation in part of application No. 09/028029, filed on Feb. 24, 1998, abandoned.
Application 09/028029 is a continuation in part of application No. 09/028277, filed on Feb. 24, 1998, granted, now 6,277,169.
Prior Publication US 2002/0192540 A1, Dec. 19, 2002
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/96 (2006.01); H01M 4/92 (2006.01)

U.S. Cl. 429—44  [429/231.8; 429/41]

13 Claims

1. A fuel cell comprising at least a first catalytic layer, said first catalytic layer including substantially spherical metal-carbon catalyst particles, said substantially spherical metal-carbon catalyst particles having a weight average particle size of at least about 0.3 μm and not greater than about 20 μm and wherein each of said substantially spherical metal-carbon catalyst particles comprises a metal phase homogeneously dispersed on a porous carbon support phase, said porous carbon support phase of each of said substantially spherical metal-carbon catalyst particles including a plurality of colloidal carbon particles.