| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect alcohol concentration of an alcohol gas by a simple structure. <P>SOLUTION: This fuel cell system 660 includes a solid polyelectrolyte membrane 114, a fuel cell main body 100 including a fuel electrode 102 and an oxidizer electrode 108 arranged at the solid polyelectrolyte membrane 114, a fuel housing part 664 to house an organic liquid fuel 124a, and a polymer membrane 665 having proton conductivity and being installed at a fuel electrode tank 662, and a concentration measurement part (first electrode terminal 666, second electrode terminal 667, and concentration detecting part 670) to detect the alcohol concentration of a fuel gas 124b in the fuel electrode tank 662 by a method based on changes in the proton conductivity of the polymer membrane 665. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
