| 摘要 |
A battery pack includes a plurality of cylindrical battery cells with each end of different polarities, and a conductive plate with a bent portion, and having a first part and a second part with respect to the bent portion, the first part of the conductive plate in contact with and fixed to a first end of at least a first of the cylindrical battery cells and the second part of the conductive plate in contact with and fixed to a second end of at least a second of the cylindrical battery cells to connect the first and second of the cylindrical battery cells in series with each other. When viewed from a lengthwise direction of the first and the second of the cylindrical battery cell, the bent portion of the conductive plate does not project out of outer circumferences of the first and second of the cylindrical battery cells.
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