alkaline battery

Abstract

Abstract PURPOSE:To prevent the blistering and leakage due to gas generating by forming the negative electrode sealing plate which is consisted of a tripple layered clad plate having its copper layer surface coated with deposite of different kind metals to maintain its higher hydrogen overvoltage so as to fill its internal portion with a negative electrode active material. CONSTITUTION:The sealing plate 4 of a button type alkaline cell, etc., which is used for filling a negative electrode active material 6 placed oppositely to a positive electrode agent 2 through a separator 7, is formed by using a tripple layered clad plate consisted of nickel-stainless steel-copper layer from outside and also, its copper layer surface is formed by using a vacuum evaporation method, etc., so as to have its coated deposite of 0.05-1mg per unit area, which is consisted of metals such as In, Cd, Pb, Sn, etc., to maintain its higher hydrogen voltage. Therefore, enabling the cell to control its hydrogen gas generating from the negative electrode active material 6 nearly perfectly after enclosing the cell, the blistering and leakage of the cell can be prevented.

Inventors

• 👤 Takao Yokoyama
• 👤 孝男 横山
• 👤 Tadashi Sawai
• 👤 沢井　忠
• 👤 Iwao Shirai
• 👤 白井　巖

Bibliographic Details