Patent ID: 7745027

Claim:
A Proton Exchange Membrane Fuel Cell (PEMFC) based electrical generator, comprising: an ion-exchange membrane interposed between an anode and a cathode to form a membrane/electrode assembly (MEA), said MEA interposed between a fuel gas diffusion layer and an oxidant gas diffusion layer; an oxidant flow network in fluid connection with said oxidant gas diffusion layer, said oxidant network having an input portion for supplying oxidant, and a fuel flow network fluid in fluid connection with said fuel gas diffusion layer, said fuel network having an input portion for supplying fuel, wherein said fuel flow network is fluidly connected to a in-situ hydrogen generator, said generator comprising: a first compartment that contains an amine borane (AB) complex, a second compartment containing at least one hydrogen generation catalyst, wherein said first or said second compartment includes water or other hydroxyl group containing solvent, or an at least weakly coordinating solvent, and an ammonia sequestering agent, a connecting network for mixing contents in said first compartment with contents in said second compartment, wherein said AB complex, said catalyst and said solvent are mixed in the presence of said ammonia sequestering agent, and wherein hydrogen gas is generated upon said mixing.