Patent ID: 8637198

Claim:
A reaction container for supplying hydrogen to a fuel cell, said fuel cell having a fuel electrode, an oxygen electrode, and an electrolyte membrane held between the fuel electrode and the oxygen electrode, the fuel cell generating power through a chemical reaction of hydrogen and oxygen and being charged by supply of electricity, comprising: a hydrogen occlusion material configured to selectively carry out either one of discharge of hydrogen by an oxidation reaction with water supplied by the fuel cell during power generation and occlusion of hydrogen by a reduction reaction with hydrogen during charging; and a temperature adjuster and an internal pressure adjuster, which are configured to control together the oxidation and reduction reactions of the hydrogen occlusion material, wherein the temperature adjuster comprises a heating unit configured to heat the hydrogen occlusion material, and the internal pressure adjuster, in a condition that the hydrogen occlusion material is heated by the heating unit, accelerates the oxidation reaction of the hydrogen occlusion material during power generation by restraining discharge of the water supplied from the fuel cell and discharge of the hydrogen produced by the oxidation reaction of the hydrogen occlusion material, and the internal pressure adjuster accelerates the reduction reaction of the hydrogen occlusion material during charging by allowing discharge of the water generated by the reduction reaction of the hydrogen occlusion material and inflow into the reaction container of the hydrogen to be used for the reduction reaction of the hydrogen occlusion material.