US 12,341,207 B2
Battery module having module housing of thin plate type and battery pack including the same
Ho-June Chi, Daejeon (KR); Kyung-Mo Kim, Daejeon (KR); Jeong-O Mun, Daejeon (KR); Jin-Yong Park, Daejeon (KR); and Hee-Jun Jin, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/431,893
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Mar. 19, 2020, PCT No. PCT/KR2020/003798
§ 371(c)(1), (2) Date Aug. 18, 2021,
PCT Pub. No. WO2020/190062, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 10-2019-0032422 (KR), filed on Mar. 21, 2019.
Prior Publication US 2022/0140428 A1, May 5, 2022
Int. Cl. H01M 50/204 (2021.01); H01M 50/211 (2021.01); H01M 50/242 (2021.01); H01M 50/262 (2021.01); H01M 50/271 (2021.01); H01M 50/289 (2021.01)
CPC H01M 50/204 (2021.01) [H01M 50/211 (2021.01); H01M 50/242 (2021.01); H01M 50/262 (2021.01); H01M 50/271 (2021.01); H01M 50/289 (2021.01)] 21 Claims
OG exemplary drawing
 
1. A battery module comprising:
a plurality of battery cells; and
a module housing forming an inner space for accommodating the plurality of battery cells,
wherein the module housing includes:
a base plate forming a bottom surface of the module housing;
a cover plate integrally forming a top surface and opposite side surfaces of the module housing; and
a fastening flange configured to extend in a horizontal direction in a region above the opposite side surfaces of the module housing,
wherein the cover plate includes a top part forming the top surface of the module housing, and a first side part and a second side part forming the opposite side surfaces of the module housing,
wherein an impact absorbing body is further attached to an outer surface of at least one of the first side part and the second side part,
wherein a gap is interposed between the impact absorbing body and the outer surface of the at least one of the first side part and the second side part,
wherein a size of the gap is less than a length of the fastening part in the horizontal direction,
wherein the impact absorbing body is a leaf spring having a center portion curved convexly to define the gap, and a top portion and a bottom portion of the leaf spring based on the center portion, and
wherein the top portion and the bottom portion are parallel and coplanar to each other based on the outer surface of at least one of the first side part and the second side part.