US 12,239,864 B2
Battery module having fire-extinguishing unit
Han Young Lee, Daejeon (KR); and Jun Soo Park, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/791,750
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Nov. 12, 2020, PCT No. PCT/KR2020/015842
§ 371(c)(1), (2) Date Jul. 8, 2022,
PCT Pub. No. WO2021/225238, PCT Pub. Date Nov. 11, 2021.
Claims priority of application No. 10-2020-0053495 (KR), filed on May 4, 2020.
Prior Publication US 2023/0035877 A1, Feb. 2, 2023
Int. Cl. H01M 10/613 (2014.01); A62C 3/16 (2006.01); A62C 35/10 (2006.01); B26D 1/00 (2006.01); H01M 10/42 (2006.01); H01M 10/647 (2014.01); H01M 50/211 (2021.01); H01M 50/673 (2021.01)
CPC A62C 3/16 (2013.01) [A62C 35/10 (2013.01); B26D 1/0006 (2013.01); H01M 10/425 (2013.01); H01M 10/613 (2015.04); H01M 10/647 (2015.04); H01M 50/211 (2021.01); H01M 50/673 (2021.01); B26D 2001/002 (2013.01); B26D 2001/0033 (2013.01); B26D 2001/006 (2013.01); H01M 2200/10 (2013.01); H01M 2200/20 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A battery module having comprising:
a plurality of battery cells stacked in a first direction; and
a plurality of fire-extinguishers respectively located adjacent to the plurality of battery cells,
wherein each of the plurality of fire-extinguishers comprises a fire-extinguishing pack containing a fire-extinguishing material, a piezoelectric element interposed between a respective battery cell and the fire-extinguishing pack, and at least one breaking unit interposed between the respective battery cell and the fire-extinguishing pack, wherein the breaking unit comprises: a coupler fixed to the respective battery cell or the fire-extinguishing pack; and a blade extending from the-coupler, wherein the blade is made of an electroactive polymer.
 
11. A battery pack comprising the battery module according to claim 1.