Patent ID: 8062797

Claim:
An apparatus with on-demand power supply for an electrical device, comprising: a. an article of clothing having an interior surface; b. two or more stiff planar fuel cell devices, distributed in a plane, that deliver electrical power to one or more electrical devices, wherein a broad face of each planar fuel cell device is substantially aligned in the plane; and c. at least one flexible interconnection for interconnecting said two or more stiff planar fuel cell devices, said flexible interconnection allowing said stiff planar fuel cell devices to move with respect to each other out of said plane, and said flexible interconnection having integrated therein or therewith electrical connections and fuel connections for each of stiff planar fuel cell devices; c. wherein the fuel cell devices are removably coupled to the article of clothing substantially near the interior surface of the article of clothing, wherein the plane formed by the fuel cell devices substantially parallels the interior surface of the article of clothing, and wherein the fuel cell devices are polymer electrolyte membrane fuel cells.