REGENERATIVE FUEL CELL SYSTEM AND WATER ELECTROLYSIS SYSTEM

• Main Authors: SHINOZAKI Noboru, YACHI Yusaku
• Format: Patent
• Language: English; French; German
• Published: 29.07.2020
• Subjects: APPARATUS THEREFOR; BASIC ELECTRIC ELEMENTS; CHEMISTRY; ELECTRICITY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; METALLURGY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A regenerative fuel cell system (100) includes: a fuel cell (1) that causes hydrogen from a hydrogen storage unit (11a) and oxygen from an oxygen storage unit (11b) to react with each other to generate electricity; a water electrolysis device (7) that electrolyze water discharged from the fuel cell (1) to produce hydrogen and oxygen; a first gas reaction device (9a) (a first reaction part) that causes the hydrogen produced by the water electrolysis device (7) and oxygen accompanying the hydrogen produced by the water electrolysis device (7) to react with each other and return the hydrogen remaining after the reaction to the hydrogen storage unit (11a); a second gas reaction device (9b) (a second reaction part) that causes the oxygen produced by the water electrolysis device (7) and hydrogen accompanying the oxygen produced by the water electrolysis device (7) to react with each other and return the oxygen remaining after the reaction to the oxygen storage unit (11b); a first valve (13a) coupled to a pipe connecting the water electrolysis device (7) and the hydrogen storage unit (11a); and a second valve (14a) coupled to a pipe connecting the water electrolysis device (7) and the oxygen storage unit (11b).