| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power supply unit improved in reliability of connection between battery cells while a displacement between a bus bar and output terminals of the battery cells can be absorbed. <P>SOLUTION: The power supply unit includes: a plurality of laminated battery cell layers, each battery cell having an output terminal and an outer shape formed in a rectangular parallelepiped shape; and a bus bar electrically connecting the adjacent battery cells via the output terminals. The bus bar has a connection hole formed at a position corresponding to the output terminal of each battery cell to be connected. Each output terminal has a tip which is formed to be elastically deformable and fitted to the connection hole while being elastically deformed to be fixed by welding. <P>COPYRIGHT: (C)2013,JPO&INPIT |
