초록

An electrolyte injecting metallic plug laser-welded to an outer edge of an electrolyte injecting port on a periphery of a battery case. At least a part of the electrolyte injecting metallic plug is inserted into the electrolyte injecting port.

대표청구항 ▼

1. A battery comprising:a metallic battery case for housing an electricity-generating element, said metallic battery case having an electrolyte injecting port for an electrolyte; and an electrolyte injecting metallic plug having a periphery of said battery case, at least a part of said electrolyte i

1. A battery comprising:a metallic battery case for housing an electricity-generating element, said metallic battery case having an electrolyte injecting port for an electrolyte; and an electrolyte injecting metallic plug having a periphery of said battery case, at least a part of said electrolyte injecting metallic plug being inserted into said electrolyte injecting port and wherein only said periphery of said electrolyte injecting metallic plug is laser-welded to said electrolyte injecting port, wherein said electrolyte injecting port is a tapered round port having a diameter which is greater outside said battery case than inside said battery case, and said electrolyte injecting metallic plug is a tapered disc.