{
  "$type": "site.standard.document",
  "description": "The application discloses a battery pack, vehicle and control method for alleviating thermal runaway spreading of a battery pack. The battery pack includes a plurality of secondary batteries and a spray pipeline. A housing of the secondary battery includes a weakened portion, so that a heat flow…",
  "path": "/patents/1415519",
  "publishedAt": "2023-05-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "A62C3/16",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "The application discloses a battery pack, vehicle and control method for alleviating thermal runaway spreading of a battery pack. The battery pack includes a plurality of secondary batteries and a spray pipeline. A housing of the secondary battery 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. The spray pipeline is corresponding to weakened portions of the secondary batteries and is arranged at a spacing B from the weakened portions of the secondary batteries. At least a portion of the spray pipeline corresponding to the weakened portions is a breakthrough region which is able to form an opening under an action of the heat flow. The spray medium in the spray pipeline is sprayed to a secondary battery in thermal runaway via the opening. A capacity A of the secondary battery by Ah and a spacing B between the weakened portion and the spray pipeline by mm satisfy: 10 ≤ 3×[(A+25)/B]0.5 ≤ 35 . The battery pack, vehicle and control method for alleviating thermal runaway spreading of the battery pack disclosed by the application can alleviate thermal runaway spreading in the battery pack, thereby improving the safety performance of the battery pack and the vehicle.",
  "title": "BATTERY PACK AND VEHICLE, FOR ALLEVIATING THERMAL RUNAWAY OF BATTERY PACK"
}