Method of forming an electrode of mixed catalyst powders

Abstract

Abstract A method of forming mixed catalyst powders is described which comprises mixing together a first at least partially soluble metallic salt containing an ion capable of being reduced, a second at least partially soluble metallic salt containing an ion capable of being oxidized, and an aqueous alkaline solution. The ions of the first and second salts are reacted together thereby simultaneously reducing the first ion to a first powder and oxidizing the second ion to a second powder. The first and second powders are precipitated as highly dispersed mixed powders which are then filtered, washed and dried. An electrode is formed from the mixed powders by rolling or pressing the mixed powders against a current collector grid; by adding a dry binder, and pressing and sintering the mixed powders against a current collector; or by adding a liquid-containing binder to the mixed powders to form a paste, and applying the paste onto a current collector and sintering the mixed powders. The electrical conductivity of either the mixed powders or the electrode can be increased by the addition of carbon powder to the mixed powders during or after their preparation.

Inventors

• 👤 J Paynter

Bibliographic Details