SEALING METHOD OF LIQUID INJECTION PORT OF BATTERY,申请号JP20120036722-传众专利搜索

SEALING METHOD OF LIQUID INJECTION PORT OF BATTERY

申请公布号：JP2013171801(A)

申请号：JP20120036722

申请日期：2012.02.22

申请公布日期：2013.09.02

申请人：

TOYOTA MOTOR CORP

发明人：YOKOYAMA TOMOHIRO

分类号：H01M2/36

主分类号：H01M2/36

摘要：PROBLEM TO BE SOLVED: To provide a sealing method of a liquid injection port of a battery capable of ensuring leak inspection after the liquid injection port of a battery is sealed with a sealing member.SOLUTION: A sealing method of a liquid injection port of a battery 1 in which a liquid injection port 22a for injecting electrolyte into a battery container 20 is formed in a lid 22 of the battery container 20, and the liquid injection port 22a is sealed with a sealing member 70 which is bonded to the battery container 20 by welding, includes a step for temporarily sealing the liquid injection port 22a by closing the liquid injection port 22a with the sealing member 70 and coating a gap between the outer periphery of the sealing member 70 and the lid 22 with a temporary sealing member 80 composed of an elastic member, a step for permanently sealing the liquid injection port 22a by welding a part of the sealing member 70 on the inner peripheral side of a part sealed temporarily with the temporary sealing member 80 to the lid 22, and a step for removing the temporary sealing member 80 after permanently sealing the liquid injection port 22a.