| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel battery which enables supply of a reaction gas to a three-phase interface with a better efficiency. <P>SOLUTION: A fuel battery includes: a cathode catalyst layer 16 containing electrically conductive carbon nanotube (CNT) 161 having a hollow space formed therein. The CNT 161 has an opening end 161a formed at one end, and a closed end 161b formed at the other end in a direction along which the hollow space is formed. The opening end 161a is arranged to contact a gas-diffusion layer 22, whereas the closed end 161b is arranged to contact a polyelectrolyte film 12. A defective portion 161c is formed on the surface of the CNT 161. The defective portion 161c communicates the hollow space to the outer surface of the CNT 161. Further, a catalyst particle 162 is provided on the outer surface of the CNT 161, and an ionomer 163 is provided to cover the catalyst particle 162. <P>COPYRIGHT: (C)2012,JPO&INPIT |
