BUSBAR MODULE

A busbar module includes a case to be attached to a battery assembly, a busbar supported by the case and to be connected to an electrode of single cells of the battery assembly and electric wires to he routed in the case. The case is provided with electric wire routing grooves to accommodate the electric wires, the electric wire routing grooves intersecting with one another. A part of the plurality of electric wires bends at a connection portion of the plurality of electric wire routing grooves. The connection portion is provided with a guide taper provided inside a bent portion of the part of the plurality of electric wires and a wire locking portion to lock the at least a part of the electric wires at a side of the bent portion of the at least the part of the electric wires.