Battery Module Comprising Busbar Plate, Battery Pack Comprising Battery Module, and Electronic Device

A battery module includes: a plurality of cylindrical battery cells including a gas vent portion to discharge an internal gas; and a busbar plate including a plurality of connection terminals that protrude and extend from an inner edge of a connection opening, and to electrically connect the cylindrical battery cells by contacting a positive or negative electrode terminal, and have different shapes depending on the contacted positive or negative electrode terminal, and a connection terminal contacting a positive or negative electrode terminal not having the gas vent portion. The connection terminal includes: a fuse portion to be disconnected when a current of a predetermined level or higher flows from the cylindrical battery cells and having a bent structure bent; and a protection tube to contract at a predetermined temperature with electric insulation and to surround at least a portion of an outer surface of the fuse portion.