US 11,990,644 B2
Battery pack including connection plate
Jin-Oh Yang, Daejeon (KR); and Seog-Jin Yoon, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 16/767,748
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Aug. 30, 2019, PCT No. PCT/KR2019/011204
§ 371(c)(1), (2) Date May 28, 2020,
PCT Pub. No. WO2020/071642, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 10-2018-0118477 (KR), filed on Oct. 4, 2018.
Prior Publication US 2021/0005865 A1, Jan. 7, 2021
Int. Cl. H01M 10/00 (2006.01); H01M 50/213 (2021.01); H01M 50/258 (2021.01); H01M 50/298 (2021.01); H01M 50/50 (2021.01); H01M 50/502 (2021.01); H01M 50/503 (2021.01)
CPC H01M 50/502 (2021.01) [H01M 50/213 (2021.01); H01M 50/258 (2021.01); H01M 50/298 (2021.01); H01M 50/50 (2021.01); H01M 50/503 (2021.01)] 9 Claims
OG exemplary drawing
 
1. A battery pack, comprising:
a plurality of battery modules arranged in a front-rear direction,
wherein each of the plurality of battery modules includes:
a plurality of cylindrical battery cells arranged in a horizontal direction and having electrode terminals at an upper portion and a lower portion thereof, respectively;
a module housing having a plurality of hollows in which the plurality of cylindrical battery cells are accommodated;
a first connection plate having a first body portion at the upper portion of the plurality of cylindrical battery cells and provided with a plurality of first connection terminals respectively in electrical contact and connection with the electrode terminals at the upper portion of the plurality of cylindrical battery cells, and a first connection portion configured to protrusively extend from a left end or a right end of the first body portion so that the first connection portion is bent downward from the first body portion, wherein the first connection portion extends beyond a front surface of the respective battery module in the front-rear direction and does not extend beyond a rear surface of the respective battery module in the front-rear direction; and
a second connection plate having a second body portion at the lower portion of the plurality of cylindrical battery cells and provided with a plurality of second connection terminals respectively in electrical contact and connection with the electrode terminals at the lower portion of the plurality of cylindrical battery cells, and a second connection portion configured to protrusively extend from a left end or a right end of the second body portion so that the first connection portion is bent upward from the second body portion, wherein the second connection portion does not extend beyond the front surface of the respective battery module in the front-rear direction and does not extend beyond the rear surface of the respective battery module in the front-rear direction, and
wherein the first connection portion of one of the battery modules is in contact and connection with the second connection portion of an adjacent one of the battery modules,
wherein the module housing includes fixing tubes at left and right outer sides thereof and having a hollow structure projecting from a surface of the module housing in a vertical direction,
wherein the first connection portion faces an outer side of one of the fixing tubes,
wherein the fixing tube has a vertical terminal protrusively extending in a vertical direction from an upper surface or a lower surface of the module housing, and
wherein the first body portion or the second body portion has a guide hole perforated in a vertical direction so that the terminal of the fixing tube protruding in a vertical direction is inserted therein.