US 12,407,039 B2
Battery module and method for manufacturing the same
Hee Jun Jin, Daejeon (KR); Sung Won Seo, Daejeon (KR); Kyung Woo Kim, Daejeon (KR); Jeong Oh Moon, Daejeon (KR); Ho June Chi, Daejeon (KR); Jin Yong Park, Daejeon (KR); and Jhin Ha Park, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/783,148
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Apr. 30, 2021, PCT No. PCT/KR2021/005531
§ 371(c)(1), (2) Date Jun. 7, 2022,
PCT Pub. No. WO2021/251624, PCT Pub. Date Dec. 16, 2021.
Claims priority of application No. 10-2020-0070473 (KR), filed on Jun. 10, 2020.
Prior Publication US 2023/0023147 A1, Jan. 26, 2023
Int. Cl. H01M 10/6554 (2014.01); H01M 10/04 (2006.01); H01M 10/613 (2014.01); H01M 10/647 (2014.01)
CPC H01M 10/6554 (2015.04) [H01M 10/04 (2013.01); H01M 10/613 (2015.04); H01M 10/647 (2015.04)] 13 Claims
OG exemplary drawing
 
1. A battery module comprising:
a plurality of battery cells overlapping each other in a thickness direction thereof;
a battery case accommodating the battery cells therein and having a structure in which a lower portion is opened; and
a heat dissipation member comprising a cover plate coupled to the lower portion of the battery case and supporting the battery cells and a heat dissipation body disposed on a first surface of the cover plate, the battery cells being supported on the heat dissipation member, the heat dissipation member being configured to dissipate heat generated in the battery cells,
wherein the heat dissipation body comprises a first heat transfer material connected to a center of a first surface of the cover plate in a longitudinal direction of the battery cells and a second heat transfer material extending from opposite sides of the first heat transfer material and shaped in a plurality of adjacent rows in the longitudinal direction of the battery cells, and
the adjacent rows of the second heat transfer material are aligned so that intervals therebetween are gradually narrowed from a center of the battery cells toward two opposite ends of the battery cells, the second heat transfer material being configured to improve heat dissipation performance in the longitudinal direction from the center toward the two opposite ends of the battery cells.