BATTERY MODULE, BATTERY PACK, ELECTRICAL DEVICE AND METHOD FOR ASSEMBLING BATTERY MODULE

This application provides a battery module and an assembly method for a battery module. The battery module includes a plurality of batteries and a framework assembly. The framework assembly includes a first partition, two second partitions, and a securing clip. The first partition extends in a second direction. Each second partition extends in a first direction, and the two second partitions are located respectively on two sides of the first partition and form a cross-shaped structure together with the first partition. The securing clip fits with the two second partitions, and secures the two second partitions to the first partition. The plurality of batteries are disposed on two sides of each second partition of the framework assembly in the second direction. The two second partitions of the framework assembly are secured to the first partition by using the securing clip, and this connection manner is simple and reliable, thereby facilitating assembly of the framework assembly and improving the strength of connection between the second partitions and the first partition.