A battery, comprising: a battery cell , the battery cell comprising a pressure relief mechanism , the pressure relief mechanism configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure or temperature; a fire-fighting pipeline configured to accommodate a fire-fighting medium, the fire-fighting pipeline comprising a first region corresponding to the pressure relief mechanism and a second region located at a periphery of the first region , the first region being configured to be damaged when the pressure relief mechanism is actuated, such that the fire-fighting medium is discharged, and the second region being configured to remain intact when the pressure relief mechanism is actuated, such that the fire-fighting medium is capable of flowing from the second region to the first region ; and a protective component disposed between the fire-fighting pipeline and the battery cell and configured to protect the second region ; wherein the protective component comprises a weakened zone and a protective zone , the protective zone is configured to protect the second region of the fire-fighting pipeline when the pressure relief mechanism is actuated, the weakened zone is disposed opposite to the pressure relief mechanism , and the weakened zone is configured such that emissions from the battery cell are capable of passing through the weakened zone to damage the first region when the pressure relief mechanism is actuated; characterized in that a first recess is provided on the protective component , the fire-fighting pipeline is disposed in the first recess , and the first recess is configured to collect the fire-fighting medium used to flow into the battery cell when the pressure relief mechanism is actuated; wherein the weakened zone is provided in a region on a bottom wall of the first recess corresponding to the first region . a battery cell , the battery cell comprising a pressure relief mechanism , the pressure relief mechanism configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure or temperature; a fire-fighting pipeline configured to accommodate a fire-fighting medium, the fire-fighting pipeline comprising a first region corresponding to the pressure relief mechanism and a second region located at a periphery of the first region , the first region being configured to be damaged when the pressure relief mechanism is actuated, such that the fire-fighting medium is discharged, and the second region being configured to remain intact when the pressure relief mechanism is actuated, such that the fire-fighting medium is capable of flowing from the second region to the first region ; and a protective component disposed between the fire-fighting pipeline and the battery cell and configured to protect the second region ; wherein the protective component comprises a weakened zone and a protective zone , the protective zone is configured to protect the second region of the fire-fighting pipeline when the pressure relief mechanism is actuated, the weakened zone is disposed opposite to the pressure relief mechanism , and the weakened zone is configured such that emissions from the battery cell are capable of passing through the weakened zone to damage the first region when the pressure relief mechanism is actuated; characterized in that a first recess is provided on the protective component , the fire-fighting pipeline is disposed in the first recess , and the first recess is configured to collect the fire-fighting medium used to flow into the battery cell when the pressure relief mechanism is actuated; wherein the weakened zone is provided in a region on a bottom wall of the first recess corresponding to the first region . <EOS>