| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve efficient operation by safely and surely carrying out switching over of an operation mode in a reversible cell formed by integrating a solid polymer water electrolysis device and a fuel cell. <P>SOLUTION: In the reversible cell 1 formed by integrating the solid polymer water electrolysis device and the fuel cell, when the operation mode is switched over from water electrolysis device operation to fuel cell operation, inert gas is supplied from an inert gas supply source 31 to a flow passage interior of the reversible cell 1 to dry the interior of the reversible cell 1. A dry situation is determined based on increase in resistance between current supply/current collecting plates 2, 3 by an AC resistance measuring instrument 35, and after a resistance increased value reaches within an appropriate range, a control device 34 stops the supply of gas, and then starts the operation of the fuel cell. <P>COPYRIGHT: (C)2011,JPO&INPIT |
