Abstract: The present invention is directed to silicon electrode structures and silicon electrode assemblies associated with fuel cell systems, as well as to methods relating thereto. In one embodiment, the present invention is directed to an electrode structure adapted for use with a fuel cell system such as, for example, a direct methanol fuel cell system. In this embodiment, the invention may be characterized in that the electrode structure comprises a silicon substrate having one or more selectively doped regions thereon, wherein each of the one or more selectively doped regions is adapted to function as a current collector for the transmission of an electrical current.
Abstract: The invention herein disclosed is, in one embodiment, directed to a golf ball of unitary molded construction, wherein the golf ball is foamed from a composition that comprises an ethylene-vinyl acetate copolymer, a thermoplastic elastomer, and a blowing agent, and wherein the golf ball has (i) a diameter that ranges from about 1.6 to about 1.75 inches, (ii) a weight that ranges from about 10 to about 15 grams, and (iii) a coefficient of restitution value that ranges from about 0.33 to about 0.42.
Abstract: Metallic blocking layers integrally associated with fuel cell electrode structures and fuel cell electrode stack assemblies, as well as to methods relating thereto, are disclosed herein. More specifically, the present invention is directed to a metallic blocking layer integrally associated with an electrode structure of a fuel cell system such as, for example, a direct methanol fuel cell system. In this embodiment, the invention may be characterized in that the electrode structure comprises an inorganic (i.e., noncarbonaceous) support substrate having one or more discrete porous regions, wherein the one or more discrete porous regions is defined by an array of acicular pores disposed across the top surface area of the electrode structure such that at least a portion of the blocking layer covers the top surface area and protrudes into the array of acicular pores.
Type:
Grant
Filed:
April 19, 2001
Date of Patent:
April 13, 2004
Assignee:
Neah Power Systems, Inc.
Inventors:
Leroy J. Ohlsen, Aaron M. Cooke, Jonathan C. Mallari, Chung M. Chan