| 摘要 |
PURPOSE:To provide a high catalytic function with a small amount of a metal by forming an air electrode carrying the metal deposited from a solution containing the metal ion by a reducing agent into a sheet-like electrode. CONSTITUTION:Manganese oxide, activated carbon, conductive carbon, polytetrafluoroethylene(PTFE) in 47:35:12:7 weight ratio are mixed and kneaded and the resulting mixture is formed into a sheet with 0.6mm thickness to give an air electrode 5. The sheet is immersed in an aqueous solution containing 20g/l of silver cyanide, 100g/l of sodium hypophosphite as a reducing agent, and 80g/l of potassium cyanide under 70cmHg pressure for 10 minutes. Further, the obtained sheet is heated at 90 deg.C for 10 minutes to deposite silver. The resulting sheet-like electrode is press-stuck to a cylindrical stainless steel mesh coated with nickel and further together with the sheet-like electrode, a sheet with 0.23mm thickness and prepared by kneading carbon black and PTFE in 3:2 weight ratio and forming the mixture into a sheet is rolled double to give a cylindrical electrode and thus a battery is prepared. |
