The present application provides a battery module, a
battery pack, an electrical device, and a manufacturing method for a battery module. The battery module comprises: a
battery cell assembly comprising a plurality of battery cells. Each
battery cell comprises an
electrode terminal. A first member comprises a bottom wall, side walls, a protrusion, a first space, a first opening, and a second opening. The bottom wall and the side walls form a recess. Part of each
electrode terminal is located in the recess. The protrusion is connected to the surface of the bottom wall facing away from the
battery cell assembly. In the first direction, the first opening penetrates through the bottom wall. In the second direction, the second opening penetrates though a side wall and the protrusion. The first space, the first opening, and the second opening are in communication. A first conductive element penetrates through the first space and the first opening. The first conductive element is connected to the battery
cell assembly. A first
adhesive blocking member is located on the side of the first conductive member facing the second opening. At least part of a first
potting resin is provided in the first space. The first
adhesive blocking member is configured to
restrict the flow of the first
potting resin to the recess. At least part of a second
potting resin is provided in the recess.