| 摘要 |
PROBLEM TO BE SOLVED: To provide a joining method of a terminal portion of a sealing plate in which an electrode terminal 4 and an outer terminal 9 are firmly joined to each other without using a supersonic welding method for applying vibration in a lateral direction (the direction in parallel with a joining surface), high temperature is not conducted to a joint portion of a sealing body 2 and the electrode terminal 4 in welding, thereby preventing an occurrence of crack in the sealing plate body 2 and an occurrence of stripping at the joint portion of the sealing plate body 2 and the electrode terminal 4. SOLUTION: In the method of joining the outer terminal 9 to the electrode terminal 4 formed in the sealing plate body 2 of polymeric materials in one body, a projection 13 for welding is provided in the outer terminal 9 to be directed to the electrode terminal 4, a taper slope surface 14 is provided at a tip of the projection 13 for welding, the supersonic welding for applying vibration in the vertical direction (the direction perpendicular to the joint surface) is performed while the tip of the projection 13 for welding provided on the taper slope surface is pushed to the electrode terminal 4, thereby joining the outer terminal 9 to the electrode terminal 4. COPYRIGHT: (C)2005,JPO&NCIPI
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