| 摘要 |
PURPOSE:To improve the cell performance considerably by bearing water repellent particles and precious metal for performing catalysis on one face of an ion exchange film to integrate the oxidizing agent electrode and the ion exchange film thereby reducing the contact resistance between the ion exchange film and the electrode considerably. CONSTITUTION:Water repellent particles and platinum catalyst are born on one face of an ion exchange film 1 to form an air electrode 4, while dual function catalyst of platinum and ruthenium is born on the other face of the ion exchange film 1 to form a methanol electrode 7, where said air electrode 4 has the water repellent performance to form the three-phase interface thus to improve the performance as the air electrode for a methanol fuel cell considerably. Since no air gap is formed between the ion exchange film 1 and both electrodes 4, 7 the contact resistance is reduced considerably and carbon dioxide produced from the methanol electrode 7 will never be stored resulting in the improvement of the cell performance. Furthermore the independent process for manufacturing the air electrode and the methanol electrode and assembling in the fuel cell is not required, the manufacturing time can be shortened to 1/5. It can be applied on other type cells and similar effect can be achieved. |
