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Molten carbonate fuel cell and power generation system including the same
| Details |
Inventors: Uematsu, Hiroyoshi;
Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd. (Tokyo, JP)
Primary Examiner: Nuzzolillo; Maria
Assistant Examiner: Chaney; Carol
Attorney, Agent or Firm: Griffin, Butler, Whisenhunt & Szipl, LLP
The molten carbonate fuel cell includes (a) an anode current collector formed to be flat rectangular tubular and having a pair of outer surfaces each formed at the center thereof with a recessed portion for receiving an anode therein, the recessed portion being formed with a plurality of holes through which anode gas is supplied to anode from inside of the anode current collector, (b) a pair of cells each disposed on each of the outer surfaces of the anode current collector, and (c) a pair of cathode current collectors each cooperating with the anode current collector to sandwich each of the cells, therebetween, the cathode current collectors being formed with a plurality of holes through which cathode gas is supplied to cathode from outside of the cathode current collector. The anode current collector, the cells and the cathode current collectors constitute a pair of independent parallel cells. The anode current collector includes an anode gas passage which is connected to the anode current collector and through which an anode gas is to be provided to the inside of the anode current collector, and an anode current terminal formed at an end of the anode current collector perpendicular to the anode gas flow. Each of the cells includes an anode set in the recessed portion of the anode current collector, an electrolyte plate disposed in contact with an outer surface of the anode and extensive over the recessed portion of the anode current collector, and a cathode disposed in contact with an outer surface of the electrolyte plate. The cathode current collectors is connected to each other at ends disposed opposite to the anode current terminal to form shape, and the cathode current collector is formed at a connection point as a cathode current terminal. The above mentioned molten carbonate fuel cell makes it no longer necessary to use a separator for mechanically separating anode and cathode gases, resulting in remarkable cost down. |
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DETAILED DESCRIPTION In view of the above discussed problems of the conventional fuel cell, it is an object of the present invention, to provide a molten carbonate fuel cell capable of making a cell at low cost without using a high cost separator.
Another object of the present invention is to provide a molten carbonate fuel cell capable of exchanging each of cells and supplementing electrolyte to a cell.
A further object of the present invention is to provide a power generation system using the above mentioned fuel cell to make a fuel cell and a reformer integrated with each other to thereby make the power generation system simple and compact in structure and reduce fabrication cost thereof.
There is provided a molten carbonate fuel cell including an anode current collector formed to be flat rectangular tubular a pair of opposite outer surfaces each formed at the center thereof with a recessed portion for receiving an anode therein, the recessed portion being formed with a plurality of holes through which anode gas is supplied to anode from inside of the anode current collector, a pair of cells each disposed on each of the outer surfaces of the anode current collector, and a pair of cathode current collectors each cooperating with the anode current collector to sandwich each of the cells therebetween, the cathode current collectors being formed with a plurality of holes through which cathode gas is supplied to cathode from outside of the cathode current collector.
The anode current collector, the cells and the cathode current collectors constitute a pair of independent parallel cells.
The anode current collector is connected to an anode gas passage through which an anode gas is to be provided to the inside of the anode current collector, and an anode current terminal is formed at an end of the anode current collector perpendicular to the anode gas flow.
Each of the cells includes a pair of anodes each set in the recessed portion of the anode current collector, a pair of electrolyte plates each disposed in contact with an outer surface of each of the anodes and extensive over the recessed portion of the anode current collector, and a pair of cathodes each disposed in contact with an outer surface of each of the electrolyte plates
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Fuel Cells 
