US 11,717,713 B2
Battery module with improved safety
Jae-Uk Ryu, Daejeon (KR); Dal-Mo Kang, Daejeon (KR); Su-Chang Kim, Daejeon (KR); Jeong-O Mun, Daejeon (KR); and Ji-Su Yoon, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 16/464,781
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Jan. 3, 2018, PCT No. PCT/KR2018/000139
§ 371(c)(1), (2) Date May 29, 2019,
PCT Pub. No. WO2018/216870, PCT Pub. Date Nov. 29, 2018.
Claims priority of application No. 10-2017-0064793 (KR), filed on May 25, 2017.
Prior Publication US 2019/0348649 A1, Nov. 14, 2019
Int. Cl. A62C 37/08 (2006.01); A62C 3/16 (2006.01); H01M 50/383 (2021.01); H01M 10/643 (2014.01); H01M 10/613 (2014.01); H01M 50/213 (2021.01)
CPC A62C 37/08 (2013.01) [A62C 3/16 (2013.01); H01M 10/613 (2015.04); H01M 10/643 (2015.04); H01M 50/213 (2021.01); H01M 50/383 (2021.01); H01M 2200/00 (2013.01); H01M 2200/10 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A battery module, comprising:
a cell holder comprising a plurality of holes through an upper surface of the cell holder, the holes respectively forming:
a plurality of battery cell insertion portions; and
at least one fire extinguishing cell insertion portion;
a plurality of battery cells respectively located in the battery cell insertion portions; and
at least one fire extinguishing cell respectively located in the at least one fire extinguishing cell insertion portion,
wherein the at least one fire extinguishing cell is spaced apart from each of the plurality of battery cells, and does not directly contact any of the plurality of battery cells, and
wherein the at least one fire extinguishing cell includes a case cover configured to cover one of the holes forming the at least one fire extinguishing cell insertion portion at the upper surface of the cell holder without covering another of the holes forming one of the battery cell insertion portions adjacent to the at least one fire extinguishing cell insertion portion in a plan view.