| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack capable of effectively reducing connection resistance, without having simply the contact area of a collector terminal increase, and capable of readily and surely connecting it.SOLUTION: In the battery pack 100 structured by connecting a plurality of stack type batteries (unit cells) 10A, 10B in parallel or series, each of positive/negative collector terminals 15A, 15B, 16A, 16B is bent at two sites or more to form two or more bent pieces (tip-bent pieces 23A, 23B, 25A, 25B, and one-side bent pieces 24A, 24B, 26A, 26B); the two or more bent pieces are connected to each other; and then a cubic positive/negative contact member 29, 30 with the conductivity is made to abut against from the inside, with both positive/negative collector terminals 15A, 15B, 16A, 16B of the adjoining stack batteries 10A, 10B. |
