| 摘要 |
PURPOSE:To increase the preservation performance and the liquid-leakage resistant performance of a layer-built dry cell, and enhance the work efficiency and the yield of the cell by directly fusing the peripheral part of a conductive carbon film to the peripheral part of a thermo-contractile synthetic-resin cell case by high-frequency dielectric heating. CONSTITUTION:After the carbon film (thermoplastic resin, a conductive carbon film coated with the vinyl chloride resin) and the peripheral part of a prefolded cell cup 5 (thermo-contractile vinyl chloride resin) are punched, sticking work is carried out through a push pestle under a pressure of 8-9kg/cm<3> by feeding a high-frequency current with an oscillation frequency of 20MHZ to a coil for 0.4sec so as to make a cell cup. As a result, an adhesive strength of 5-6.5kg/ cm<3> is maintained, which is higher and has a smaller variation than an adhesive strength of 1.5-3.9kg/cm<3> achieved by the conventional adhesive method. After that, a separator is placed in the cell cup, and electrolyte is poured from above the positive mixture, thereby constituting an elementary battery. |
