US 12,009,540 B2
Eco-friendly power source such as battery module for transportation vehicle
Ho Yeon Kim, Daejeon (KR); Sang Tae An, Daejeon (KR); Hwa Kyoo Yoon, Daejeon (KR); Gang U Lee, Daejeon (KR); Young Sun Choi, Daejeon (KR); and Jeong Woo Han, Daejeon (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Filed by SK On Co., Ltd., Seoul (KR)
Filed on Jan. 17, 2023, as Appl. No. 18/155,409.
Claims priority of application No. 10-2022-0131838 (KR), filed on Oct. 13, 2022; and application No. 10-2022-0141797 (KR), filed on Oct. 28, 2022.
Prior Publication US 2024/0128572 A1, Apr. 18, 2024
Int. Cl. H01M 50/291 (2021.01); H01M 50/204 (2021.01); H01M 50/249 (2021.01); H01M 50/264 (2021.01)
CPC H01M 50/249 (2021.01) [H01M 50/204 (2021.01); H01M 50/264 (2021.01); H01M 50/291 (2021.01); H01M 2220/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An eco-friendly battery module, comprising:
a first sub-module and a second sub-module respectively including a cell stack in which a plurality of battery cells are stacked; and
a central wall disposed between the first sub-module and the second sub-module,
wherein the central wall includes a first central wall contacting the first sub-module and a second central wall contacting the second sub-module,
wherein the first central wall comprises at least one first groove portion disposed on a surface of the first central wall, but not completely penetrating through the first central wall, the at least one first groove portion on the surface of the first central wall contacting the first sub-module,
wherein the second central wall comprises at least one second groove portion disposed on a surface of the second central wall, but not completely penetrating through the second central wall, the at least one second groove portion on the surface of the second central wall contacting the second sub-module, and
wherein the at least one first groove portion and the at least one second groove portion have a space to move gas emitted from the battery.