The application discloses a battery pack, vehicle and control method for alleviating spreading of thermal runaway of a battery pack. The battery pack includes: a plurality of secondary batteries, a housing of each of which includes a weakened portion, so that a heat flow resulting from thermal runaway of the secondary battery is able to break through the weakened portion to be discharged; a spray pipeline which is arranged corresponding to and at a spacing from weakened portions of the secondary batteries, at least a portion of the spray pipeline corresponding to the weakened portions being a breakthrough region which is able to form an opening under an action of the heat flow, a spray medium in the spray pipeline being sprayed to an abnormal secondary battery in thermal runaway via the opening; where a weight A of the sprayed spray medium is determined according to an equation (0.8A)0.85×D/B≥2.6.
Battery pack, vehicle and control method for alleviating spreading of thermal runaway of battery pack
2023-05-09
Patent
Electronic Resource
English
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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