| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology which improves connection reliability between an external terminal of a battery and a terminal connection member. <P>SOLUTION: A battery pack 10 includes multiple batteries 30, each of which has external terminals including a positive electrode terminal 50 and a negative electrode terminal 60 that are provided in a housing, and bus bars 40 for electrically connecting the external terminals of the two adjacent batteries 30 with each other. Each external terminal and the bus bar 40 are welded in boundary portions between an overlapping region Ra where the external terminal and the bus bar 40 are overlapped and exposed regions Rb1, Rb2 where the external terminal is exposed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
