Battery module and battery pack

The invention discloses a battery module and a battery pack, the battery module comprises a shell and a plurality of single batteries, and a plastic bracket is mounted between adjacent single batteries; the plastic bracket comprises a first connecting part, a second connecting part and a third connecting part; the adjacent single batteries are separated through a third connecting part, the middle part of the third connecting part is hollowed to form a first avoiding area, and the expansion deformation of the single batteries is avoided through the first avoiding area. According to the battery module disclosed by the invention, the original adhesive tape and plastic top cover are replaced by the plastic bracket between the two adjacent single batteries, so that the mounting procedures are reduced, and the cost is reduced; the plastic bracket is novel in structure, not only has a function of avoiding bulging of the single battery, but also has multiple functions of binding wires and/or positioning and fixing bu