| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell equipped with a solid polymer electrolyte film supported by an electrode base material under uniform pressure without fear of damage of the film, in spite of stress if any due to repetition of drying and dampening, as well as its manufacturing method. <P>SOLUTION: The fuel cell, provided with a membrane electrode assembly made by pinching a negative electrode catalyst layer and a positive electrode catalyst layer pinching the center part of a solid polymer electrolyte film from both sides with a fuel electrode base material and an oxidant electrode base material with the same outer shape as the solid polymer electrolyte film from outside, is further provided with an outer edge part surrounding the negative electrode catalyst layer and the positive electrode catalyst layer out of the solid polymer electrolyte film, and a step-eliminating member between the fuel electrode base material and the oxidant electrode base material. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
