FUEL CELL SYSTEM

PROBLEM TO BE SOLVED: To provide a safe fuel cell system effectively treating excess hydrogen and suppressing exhaust of the excess hydrogen. SOLUTION: The fuel cell system is equipped with a fuel cell having a plurality of unit cells each having a positive electrode reducing oxygen, a negative elec...

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Bibliographische Detailangaben
Hauptverfasser:	YOSHIMOTO NORITOSHI, KASHIWANO HIROSHI, MIKI KEN, NISHIHARA SHOJI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a safe fuel cell system effectively treating excess hydrogen and suppressing exhaust of the excess hydrogen. SOLUTION: The fuel cell system is equipped with a fuel cell having a plurality of unit cells each having a positive electrode reducing oxygen, a negative electrode oxidizing hydrogen, and a solid electrolyte membrane interposed between the positive electrode and the negative electrode, and a hydrogen supply passage for supplying hydrogen to each of the plurality of unit cells, and constituted by connecting at least a part of the plurality of unit cells in series or in parallel; a hydrogen supply device connected to the fuel cell; a hydrogen removing means removing at least a part of hydrogen in the hydrogen supply passage; and a control means controlling hydrogen removing in the hydrogen removing means based on a detecting signal from a detecting means detecting the hydrogen supply amount in the hydrogen supply device. COPYRIGHT: (C)2009,JPO&INPIT