Battery module and battery pack

The utility model relates to the technical field of batteries, and discloses a battery module and a battery pack, and the battery module comprises a shell, single batteries, a cover plate and an isolation plate. The shell is provided with a containing cavity and a first opening which are communicated with each other. The plurality of single batteries are arranged in the accommodating cavity; the cover plate covers the first opening and is connected with the shell. And the isolation plate is arranged at the first opening and is positioned between the single battery and the cover plate. The cover plate comprises a cover plate body and a connecting protrusion, and the connecting protrusion is provided with a limiting face and a second section. The isolation plate is provided with a clamping groove, and the clamping groove is provided with a groove side wall. And after the connecting bulge is inserted into the clamping groove, the groove side wall is matched with the limiting surface and the second section to lim