A battery module of the present invention includes a plurality of rechargeable batteries, each rechargeable battery having a first terminal and a second terminal, a bus bar having a first connection member and a second connection member, the first connection member being coupled to the bus bar via a serial connection member and a short-circuit connection member, and the second connection member being coupled to the bus bar via a fuse portion, and a short-circuit member connected to the first connection member through a serial connection member and connected to the second connection member through a fuse portion. The short-circuit member may be configured to be deformed by increased internal pressure in the respective rechargeable battery to couple to the short-circuit connection member.