WELDED STRUCTURE IN BATTERY, METHOD FOR FORMING SAME, SECONDARY BATTERY CELL, AND SECONDARY BATTERY MODULE
A plating layer (4) is formed on the surface of a battery cover (3), and a peripheral portion (37b) of a cover case (37) is arranged on the upper surface of the plating layer (4). The front end portion of the peripheral portion (37b) is provided with a welding portion (40). The welding portion (40)...
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