Patent ID: 7758987

Claim:
A fuel cell system, comprising: at least one electricity generating element adapted to generate electrical energy through an electrochemical reaction of hydrogen and oxygen; and a reaction source supplier adapted to connect to the electricity generating element and to provide a hydrogen-containing fuel and oxygen-containing air to the electricity generating element, the reaction source supplier having a storage region having rigid walls, comprising: a first divided region adapted to store compressed oxygen-containing air; a second divided region adapted to store the fuel; a flexible diaphragm directly attached to the rigid walls of the storage region that divides the adjacent first and second divided regions and deforms in a concave manner with no contact to any other structure of the fuel cell under pressure from said compressed oxygen-containing air and exerts pressure on said fuel stored in said second divided region, the first divided region being connected to the at least one electricity generating element to supply the oxygen-containing air; and a reformer adapted to connect to the second divided region and to generate hydrogen gas from the fuel through a chemical catalytic endothermic reaction and to supply the hydrogen gas to the electricity generating element.