| 摘要 |
A fuel cell (200) comprises a solid polymer electrolyte membrane (211), an anode-side catalyst body and a cathode-side catalyst body disposed on opposite surfaces of the solid polymer electrolyte membrane. It also comprises a fuel inducing portion disposed on a side opposite to the side at which the anode-side catalyst body is opposed to the solid polymer electrolyte membrane, so as to be opposed to the anode-side catalyst body, thereby inducing fuel supplied from the outside toward plural locations of the surface of the anode-side catalyst body. The fuel inducing portion (211) includes: an anode-side member (221A; 221 B), which has a plurality of through-pores (221-4a, b, c; 221-6a, b, c) and is disposed apart from the anode-side catalyst body so as to be opposed to the anode-side catalyst body; an introduction path (422-1) through which the fuel is supplied; and induction paths connected to the introduction path and through which the fuel supplied to the introduction path is induced to the through-pores. The introduction path includes a terminating port (422-1 b) connected to the induction paths. The plural induction paths include a first induction path and second induction paths, of which the lengths from the terminating port toward the through-pores are longer than that of the first induction path; and the first induction path has a cross section smaller than those of the second induction paths. |
