| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a MEA, excellent in handling, working efficiency, and cost performance of a high polymer electrolyte membrane, which have been regarded as a problem, and capable of enhancing mechanical strength of a high polymer electrolyte membrane, and enhancing battery performance when operating a battery for a long period of time. <P>SOLUTION: In manufacturing of this electrolyte membrane electrode joint body, a membrane is formed by applying dispersion liquid of a high polymer electrolyte and drying it. At this time, crsytallinity at the time when forming the membrane is enhanced by controlling the removing speed of liquid components, and mechanical strength of the membrane can be enhanced. In addition, the mechanical strength of the membrane is enhanced without using a reinforcement material by using the high polymer electrolyte having two kinds of different EW. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
