BATTERY MODULE, BATTERY PACK, AND DEVICE WHICH USES BATTERY CELL AS POWER SUPPLY

The present application relates to the technical field of energy storage devices, in particular to a battery module, a battery pack, and an apparatus using a battery cell as a power supply, the battery module comprising: a plurality of battery cells, stacked along a length direction; a cover plate, located at an end portion of the battery cells along a height direction; and a wire harness isolation plate assembly, located between the cover plate and the battery cells along the height direction, where the cover plate is plug-connected to the wire harness isolation plate assembly. In the present application, when the thickness of the cover plate and/or the wire harness isolation plate assembly is relatively small, the cover plate and the wire harness isolation plate assembly are connected by means of plugging such that connecting reliability between the cover plate and the wire harness isolation plate assembly is relatively high, thereby helping to reduce the thickness of the cover plate and the wire harness isolation plate assembly while simultaneously improving the connecting reliability of the cover plate and the wire harness isolation plate assembly, thus helping to increase energy density of the battery module.