method of forming an anode for an alkaline cell, electrochemical cell, and, combining an alkaline cell housing having an anode cavity therein and a porous mass inserted into said anode cavity

摘要

"METHOD OF FORMATION OF ONE ANOD FOR AN ALKALINE CELL, ELECTROCHEMICAL CELL AND COMBINATION OF AN ALKALINE CELL ACCOMMODATION HAVING A CAUSE OF THE ANODE IN THE DITA CAVITY". The invention relates to a method of forming an anode comprising zinc for an alkaline cell. The method involves mixing the zinc particles with binders preferably including polyvinyl alcohol, surfactant and water to form a wet paste. The wet paste is molded into a shape similar to the anode cavity of the cell, and then heated to evaporate water. A solid porous zinc mass is formed having microscopic voids between the zinc particles. The solid mass may be inserted into the anode cavity of the cell, and an aqueous alkaline electrolyte, preferably comprising potassium hydroxide, is then added. The solid mass absorbs the aqueous electrolyte and expands to fill the anode cavity to form the final fresh anode.