Abstract: A battery module includes a battery cell assembly and a fire extinguishing member. The battery cell assembly includes a plurality of battery cell frames and a plurality of battery cells. The plurality of the battery cell frames are arranged sequentially along a length direction of the battery module. At least one battery cell is provided in at least some of the battery cell frames. Each battery cell frame is provided with a fire extinguishing slot, and the fire extinguishing slots on the plurality of the battery cell frames are communicated to each other to form a fire extinguishing channel. The fire extinguishing member is arranged in the fire extinguishing channel. The fire extinguishing channel extends along the length direction of the battery module, and the fire extinguishing member extends along the length direction of the battery module in the fire extinguishing channel.