US 12,278,356 B2
Battery module and battery pack including the same
Woosik Jo, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/312,152
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed May 8, 2020, PCT No. PCT/KR2020/006082
§ 371(c)(1), (2) Date Jun. 9, 2021,
PCT Pub. No. WO2020/231095, PCT Pub. Date Nov. 19, 2020.
Claims priority of application No. 10-2019-0056449 (KR), filed on May 14, 2019.
Prior Publication US 2022/0045386 A1, Feb. 10, 2022
Int. Cl. H01M 10/6551 (2014.01); H01M 10/625 (2014.01); H01M 10/6556 (2014.01); H01M 50/19 (2021.01); H01M 50/204 (2021.01); H01M 50/209 (2021.01); H01M 50/242 (2021.01); H01M 50/342 (2021.01)
CPC H01M 10/6551 (2015.04) [H01M 10/625 (2015.04); H01M 10/6556 (2015.04); H01M 50/19 (2021.01); H01M 50/204 (2021.01); H01M 50/209 (2021.01); H01M 50/242 (2021.01); H01M 50/3425 (2021.01); H01M 2220/20 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A battery module comprising:
a battery cell stack in which a plurality of battery cells are stacked in a first direction, and
a heat sink located on one side of the battery cell stack,
wherein the heat sink includes a cooling pipe, a first rupture part, a second rupture part, and a sealing material layer,
wherein the first rupture part is configured to rupture when pressure external to the heat sink exceeds a first predetermined pressure to allow flow into the heat sink,
wherein the second rupture part is configured to rupture when pressure internal to the heat sink exceeds a second predetermined pressure to allow flow out of the heat sink, and
wherein the first rupture part is broken as the internal pressure of the battery cell stack increases, and the second rupture part is broken while the internal pressure pushes out a sealing material located in the sealing material layer.