Abstract: A fuel source for a hydrogen generator is described. The fuel source includes a chemical hydride, at least one catalyst precursor and a hygroscopic salt. When one or more of the at least one catalyst precursor and hygroscopic salt contact water, a catalyst is formed for facilitating the generation of hydrogen from the chemical hydride.

Abstract: A zinc/air button cell having an air spacer member within the air inlet space of the cathode can. The spacer member may be of solid plastic, rubber, or metal construction inserted into the air inlet space (plenum region) of the cathode can adjacent air holes in the can. The spacer member may be of disk-like configuration with cut out sections therein of varying configurations. The cut out sections in the spacer disk form channels of unoccupied free space underlying the air holes allowing air to pass unobstructed from the air holes to the cathode assembly. The channels of free space are generally much wider than the diameter of the air holes. The wide channels of unoccupied “free space” running between the air holes and cathode assembly improve air flow distribution to the cathode assembly. The spacer disk simultaneously provides sufficient support to the cathode assembly preventing it from bending into the cathode can air inlet space.

Abstract: A cartridge includes a first housing, a second housing within the first housing, and a colorant. The first housing has an interior surface and an exterior surface, and the second housing contains an alcohol fuel or a hydrocarbon fuel and has an interior surface and an exterior surface. The colorant is supported by at least a portion of the interior surface of the first housing.

Abstract: A fuel cartridge includes a housing having an outlet, a fuel container containing fuel, a flow control mechanism in fluid communication with the fuel container and the outlet, and a power source. The flow control mechanism can be operable to control fuel flow through the outlet.