| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery module that allows improving workability, reducing the number of wiring lines, and improving manufacturing efficiency.SOLUTION: A battery module 1 includes: a plurality of cylindrical batteries 20 apposed in a vertical direction Y and a horizontal direction X so that axial directions are parallel to one another; a plurality of one-side connection tabs 31 connecting one-side electrodes 21 of the plurality of cylindrical batteries 20; and a plurality of the other-side connection tabs 32 connecting the other-side electrodes 22 of the plurality of cylindrical batteries 20. The battery module 1 also includes: a plurality of one-side voltage monitoring tabs 41 being directly in contact with the one-side electrodes 21; a plurality of the other-side voltage monitoring tabs 42 being directly in contact with the other-side electrodes 22; and a circuit board 5 disposed orthogonal to the axial directions of the plurality of cylindrical batteries 20 and to which the one-side voltage monitoring tabs 41 and the other-side voltage monitoring tabs 42 are connected. |
