US 12,224,408 B2
Battery pack having BMU component damage prevention structure
Hyuk Joon Son, Daejeon (KR); Jae Young Jang, Daejeon (KR); and Jin Hyun Lee, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/632,854
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Dec. 30, 2020, PCT No. PCT/KR2020/019420
§ 371(c)(1), (2) Date Feb. 4, 2022,
PCT Pub. No. WO2021/145593, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 10-2020-0004872 (KR), filed on Jan. 14, 2020.
Prior Publication US 2022/0320599 A1, Oct. 6, 2022
Int. Cl. H01M 10/42 (2006.01); H01M 50/204 (2021.01); H01M 50/242 (2021.01); H01M 50/543 (2021.01)
CPC H01M 10/425 (2013.01) [H01M 50/204 (2021.01); H01M 50/242 (2021.01); H01M 50/543 (2021.01); H01M 2010/4271 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A battery pack comprising:
two or more battery cells in which a positive terminal and a negative terminal protrude from one outer periphery of each of the battery cells;
a Battery Management Unit (BMU) electrically connected to the positive terminal and the negative terminal of each of the battery cells to control an operation of the battery cells; and
a frame member on which each of the battery cells and the BMU is respectively mounted,
wherein the frame member comprises:
cell mounting parts on which the battery cells are mounted;
a BMU mounting part on which the BMU is mounted; and
a partition configured to divide the cell mounting parts and the BMU mounting part, and the partition having a stress concentration relaxation structure,
wherein the partition is formed to have a slope inclined by a predetermined angle θ in a direction of the cell mounting parts, and the partition is not perpendicular with the cell mounting parts.