US 12,294,094 B2
Battery case
Gi-Suk Chung, Incheon (KR); Sang-Kwon Wee, Incheon (KR); and Don-Gun Kim, Incheon (KR)
Assigned to POSCO CO., LTD, Pohang-si (KR)
Appl. No. 17/296,876
Filed by POSCO, Pohang-si (KR)
PCT Filed Nov. 26, 2019, PCT No. PCT/KR2019/016341
§ 371(c)(1), (2) Date May 25, 2021,
PCT Pub. No. WO2020/111714, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 10-2018-0151870 (KR), filed on Nov. 30, 2018.
Prior Publication US 2022/0029224 A1, Jan. 27, 2022
Int. Cl. H01M 50/119 (2021.01); H01M 50/204 (2021.01); H01M 50/224 (2021.01); H01M 50/227 (2021.01); H01M 50/242 (2021.01); H01M 50/249 (2021.01)
CPC H01M 50/119 (2021.01) [H01M 50/204 (2021.01); H01M 50/224 (2021.01); H01M 50/227 (2021.01); H01M 50/242 (2021.01); H01M 50/249 (2021.01)] 6 Claims
OG exemplary drawing
 
1. A battery case, comprising:
a plate; and
a lateral frame enclosing the plate,
wherein the lateral frame comprises,
a first wall and a second wall, a third wall, and a fourth wall forming a hollow part therebetween; and
a reinforcing part formed by traversing the hollow part to connect the second wall and the third wall,
wherein the reinforcing part comprises a shock absorption part formed by being bent,
wherein the first wall extends horizontally to a first bending point,
wherein the second wall is bent clockwise at the first bending point and then extends to a second bending point,
wherein the reinforcing part is bent at the second bending point and then extends to the third bending point,
wherein the third wall is bent counterclockwise at the third bending point and then extends to a fourth bending point,
wherein the fourth wall extends horizontally from the fourth bending point,
wherein the first to the fourth walls have a closed cross-section of a rectangular shape,
wherein the fourth wall is bonded to the second bending point to form a lower edge of the lateral frame,
wherein the fourth wall comprises an extension part that extends beyond a bonding point with the second wall and the extension part at least partially constitutes a floor or a cover of the battery case.