| 摘要 |
PURPOSE:To improve liquid leak resistance by preliminarily oxidizing the peripheral section of a metallic negative electrode can, coating it with glass film, and fuse- closing this glass tightly. CONSTITUTION:The silver oxide positive electrode flux 6 is housed in the positive electrode can 2. The zinc amalgam negative electrode active material 5 which is filled in the negative electrode can 1 is set up on it, making the separator 8 and the electrolyte supporting film 7 intervene. By enclosing the material 5, making almost L-shaped packing 3 on which an adhesive liquid sealed layer is formed between both cans 1 and 2, a button-type battery is formed. In this case, for example, oxidized film is coated on the peripheral section of the negative electrode can 1 which consists of Kovar, Inconel, iron-nickel alloy, etc. Moreover, glass film is coated by deposition, sputtering, or ion plating. It is heated and the fused and tightly closed glass layer 4 is formed. Before the preliminary oxidation which coats oxidized film, metal plating which is easy to be corrosion-plated or amalgamated must be applied on the surface of the negative electrode can 1. |
