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公开(公告)号:US4997731A
公开(公告)日:1991-03-05
申请号:US313674
申请日:1989-02-22
申请人: Toyoji Machida , Akiyoshi Sakai , Katsushiro Gotou
发明人: Toyoji Machida , Akiyoshi Sakai , Katsushiro Gotou
CPC分类号: H01M6/44 , H01M2/105 , Y10T29/4911
摘要: The present invention relates to a packed battery unifying a plurality of battery cells housed in a case. The case comprises a tubular body housing the battery cells and a couple of lids closing both the end openings of the tubular body respectively, thus being arranged in a three-unit construction. This arrangement allows the case to be completely sealed off by ultrasonic wave welding.