| 摘要 |
A battery module is provided to facilitate assemblage of a plurality of cylindrical unit cells, to ensure firm binding between a frame and unit cells, and to prevent misconnection of electrode terminals. A battery module comprises: a plurality of cylindrical unit cells having a cathode at one end and an anode at the other end; and a frame(200) for receiving the cylindrical unit cells, wherein both ends of the unit cell have a circular dish-like coupling member to be coupled to the frame, and any one of the circular dish-like coupling members present at both ends has a rotation-preventing member. The rotation-preventing member comprises: a protrusion(236) formed at a part of the exterior of the circular dish-like coupling member; and a groove(324) formed on the frame so as to be coupled with the protrusion. |
