| 摘要 |
PROBLEM TO BE SOLVED: To secure reliability of a connection part while minimizing the number of screw coupling parts when a plus terminal and a minus terminal of a power storage cell made of dissimilar metals are electrically connected by a bus bar.SOLUTION: A power storage module M comprises plural power cells 11 laminated on each other, and a plus terminal 22 of one of a pair of adjacent power storage cells 11, and a minus terminal 11f of the other power storage cell 11 are electrically connected to each other by a bus bar 20. The plus terminal 22 and the minus terminal 11f are made of dissimilar metals, and the minus terminal 11f and the bus bar 20 are made of the same kind of metal and connected by welding. The plus terminal 22 and the bus bar 20 are connected by screw coupling. Therefore, while the minus terminal 11f and the bus bar 20 made of the same kind of metal are rigidly connected to each other by welding, the plus terminal 22 and the bus bar 20 made of the dissimilar metals are rigidly connected to each other by screw coupling, so as to secure reliability while miniaturizing the number of screw couplings. |
