The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 26, 2011
Filed:
Dec. 13, 2006
Carl A. Reiser, Stonington, CT (US);
Carl A. Reiser, Stonington, CT (US);
UTC Power Corporation, South Windsor, CT (US);
Abstract
A fuel cell () includes first and second catalysts ('), (′) secured to opposed surfaces of an electrolyte (′); a first flow field (′) secured in fluid communication with the first catalyst (′) defining a plurality of flow channels (A′,B′,C′,D′) between a plurality of ribs (A′,B′,C′,D′,E′) of the first flow field (′); and a backing layer () secured between the first flow field (′) and the first catalyst (′). The backing layer () includes a carbon black, a hydrophobic polymer, and randomly-dispersed carbon fibers (). The carbon fibers () are at least twice as long as a width () of the flow channels (A′,B′,C′,D′) defined in the adjacent first flow field (′). The backing layer () replaces a known substrate () and diffusion layer ().