| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system capable of realizing downsizing and simplification of the system, realizing uniformity of output density in an electrode surface of the power generation part by improving detection precision of fuel concentration, and improving fuel utilization efficiency and power generation efficiency. <P>SOLUTION: The fuel cell system is provided with power generation cells 7 comprising mutually opposed first passage plate 73a and second passage plate 73b through a membrane electrode assembly 73c, a first current collector plate 74a to take out current from an upstream region of the first passage plate 73a, a second current collector plate 74b which is separated away from the first current collector plate 74a and takes out current from a downstream region of the first passage plate 73a, a third current collector plate 75a which is opposed to the first current collector plate 74a and takes out current from the upstream region of the second passage plate 73b, a fourth current collector plate 75b which is opposed to the second current collector plate 74b and takes out current from the downstream region of the second passage plate 73b, and a control part 10 which controls supply quantity of alcohol to be supplied to the power generation cells 7 based on the difference of current density between the first current collector plate 74a and the second current collector plate 74b. <P>COPYRIGHT: (C)2008,JPO&INPIT |
