| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack which is excellent in output characteristics and long-term reliability, and inexpensive in costs.SOLUTION: A battery pack comprises: a plurality of battery cells, being laminated each other, each of which includes electrode terminals including a positive electrode terminal and a negative electrode terminal; and bus bars each of which has bent portions and is welded to the electrode terminals so as to be electrically connected. The electrode terminals are formed of flat plates, and a laminating direction of the electrode terminals and a laminating direction of the plurality of battery cells are the same. An electrode terminal of one of the plurality of battery cells and an electrode terminal of another of the plurality of battery cells are electrically connected. |
