| 摘要 |
PURPOSE:To obtain the titled cathode having low resistance during electrolysis and enabling a drop in electrolytic voltage because it has higher electrical conductivity and much lower hydrogen overvoltage than a conventional copper or graphite cathode by using high purity silver of a prescribed purity or above. CONSTITUTION:This cathode for producing electrolytic manganese dioxide is made of silver of >=99.5wt% purity or obtd. by coating the surface of a base material for a cathode with silver of >=99.5wt% purity to >=2mum thickness. Not only electrically conductive copper, nickel, mild steel or graphite but also nonconductive plastics can be used as the base material without hindrance. The cathode has higher electrical conductivity and much lower hydrogen overvoltage than a conventional copper or graphite cathode, so it has low resistance during electrolysis, can drop electrolytic voltage and can reduce the cost of energy. |
