Battery fire prevention system for a battery of a motor vehicle comprising a plurality of battery cells (14, 14a) for preventing a battery fire resulting from a thermal runaway of a first battery cell of the battery cells (14, 14a) of the battery, wherein the battery fire prevention system has: - a cell degassing channel which can be connected to the battery cells (14, 14a) of the battery and into which a gas exiting one of the battery cells (14, 14a) can be introduced and discharged to at least one outlet opening of the cell degassing channel; and - a gas flow influencing structure as part of the cell degassing channel, which structure is designed to influence the course of the gas flow which flows through the cell degassing channel and which is formed by the gas exiting the first battery cell; characterized in that - the battery fire prevention system has a coolant pump for circulating a coolant within a cooling circuit, a cooling device for cooling the first battery cells undergoing thermal runaway, and the cooling circuit to which the cooling device is connected or can be connected and through which the coolant can be circulated by pumping by the coolant pump in order to cool the first battery cell undergoing thermal runaway, - wherein the cooling device is configured such that the coolant flows through it, at the latest when the first battery cell undergoes thermal runaway. wherein the battery fire prevention system has: - a cell degassing channel which can be connected to the battery cells (14, 14a) of the battery and into which a gas exiting one of the battery cells (14, 14a) can be introduced and discharged to at least one outlet opening of the cell degassing channel; and - a gas flow influencing structure as part of the cell degassing channel, which structure is designed to influence the course of the gas flow which flows through the cell degassing channel and which is formed by the gas exiting the first battery cell; - a cell degassing channel which can be connected to the battery cells (14, 14a) of the battery and into which a gas exiting one of the battery cells (14, 14a) can be introduced and discharged to at least one outlet opening of the cell degassing channel; and - a gas flow influencing structure as part of the cell degassing channel, which structure is designed to influence the course of the gas flow which flows through the cell degassing channel and which is formed by the gas exiting the first battery cell; characterized in that - the battery fire prevention system has a coolant pump for circulating a coolant within a cooling circuit, a cooling device for cooling the first battery cells undergoing thermal runaway, and the cooling circuit to which the cooling device is connected or can be connected and through which the coolant can be circulated by pumping by the coolant pump in order to cool the first battery cell undergoing thermal runaway, - wherein the cooling device is configured such that the coolant flows through it, at the latest when the first battery cell undergoes thermal runaway. - the battery fire prevention system has a coolant pump for circulating a coolant within a cooling circuit, a cooling device for cooling the first battery cells undergoing thermal runaway, and the cooling circuit to which the cooling device is connected or can be connected and through which the coolant can be circulated by pumping by the coolant pump in order to cool the first battery cell undergoing thermal runaway, - wherein the cooling device is configured such that the coolant flows through it, at the latest when the first battery cell undergoes thermal runaway.