| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To lower viscosity of catalyst ink by eliminating coarse particles and air bubbles in catalyst ink and manufacture uniform catalyst ink. <P>SOLUTION: Catalyst ink materials containing powder comprising catalyst carrying conductive particles, resin having ionic conductivity and a dispersing medium are prepared (S1), shearing force is applied to the catalyst ink materials to disperse each material (S2), the catalyst ink materials are dispersed by cavitation effect produced by applying ultrasonic vibration to the catalyst ink materials (S3), and the catalyst ink obtained is applied to an electrolyte membrane (S4). All coarse particles are crushed in the process S2 and the catalyst carrying conductive particles are uniformly monodispersed, air bubbles are burst by ultrasonic waves in the process S3 to stably manufacture the uniform catalyst ink having stable viscosity, and the catalyst ink is applied to the electrolyte membrane to form an appropriate catalyst layer. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
