| 摘要 |
PURPOSE:To improve liquid leak resistance by heat-sealing glass on the peripheral section of a negative electrode can which contacts the resin packing and coating liquid sealant on the packing. CONSTITUTION:The positive electrode can 2 is housed in the positive electrode active material 6. The negative electrode active material 5 which is filled in the negative electrode can 1, making the separator 8 and the electrolyte supporting film 7 intervene on it. By enclosing the material 5, making almost L-shaped resin packing 3 intervene between both cans 1 and 2, a button-type battery is formed. When this enclosure is performed, for example, the heat-fused glass layer 4 is set up on the surface which contacts the packing 3 jointly used as a container and a collector, for the peripheral section of the metallic negative can 1, such as Kovar, Inconel, etc. Types of liquid sealant, such as pitch, asphalt, polyamide, epoxy, synthetic resin, etc. are also coated on the resin packing 3. This packing 3 is compressed by both cans 1 and 2 and is enclosed. |
