A battery includes a battery cell including a pressure relief mechanism configured to be actuated to release an internal pressure when the internal pressure or a temperature of the battery cell reaches a threshold value, a firefighting pipeline configured to accommodate a fire extinguishing medium and configured to discharge the fire extinguishing medium when the pressure relief mechanism is actuated, and a fixing member arranged between the battery cell and the firefighting pipeline and configured to fix the firefighting pipeline. The fixing member is provided with a flow passage area and a flow guiding structure. The flow passage area is configured to cause the fire extinguishing medium to flow through the flow passage area to the battery cell when the pressure relief mechanism is actuated. The flow guiding structure is configured to guide the fire extinguishing medium towards the flow passage area when the pressure relief mechanism is actuated.