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US 2023/0402674 A1Published application
Pouch-type secondary battery including fire extinguishing device
AssigneeSK On Co., Ltd.
InventorsBo Ra JEONG, Dong Hee KIM, Sin Young MOON, Jeong Hun SHIN
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Abstract
A pouch-type secondary battery comprises an electrode assembly, and a pouch case surrounding the electrode assembly. At least three surfaces, among four surfaces of a side surface in a thickness direction of the electrode assembly, include a sealed portion. An electrode lead is drawn out from a sealed portion of at least one of the three sealed portions. The pouch-type secondary battery includes a fire extinguishing device on an external surface of the pouch case.
Claims18
A pouch-type secondary battery comprising:
- an electrode assembly;
- and
- a pouch case surrounding the electrode assembly,
- wherein at least three surfaces, among four surfaces of a side surface in a thickness direction of the electrode assembly, include a sealed portion,
- an electrode lead is drawn out from a sealed portion of at least one of the three sealed portions,
- the pouch-type secondary battery includes a fire extinguishing device on an external surface of the pouch case, and
- the fire extinguishing device sprays a fire extinguishing agent at a temperature greater than or equal to a reference point temperature.
4 more elements
Dependencies are inferred from the claim text.