US 11,742,551 B2
Battery module including module case
Hyun-Jong Lee, Daejeon (KR); and Choon-Kwon Kang, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 16/971,950
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Dec. 12, 2019, PCT No. PCT/KR2019/017606
§ 371(c)(1), (2) Date Aug. 21, 2020,
PCT Pub. No. WO2020/145532, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. 10-2019-0003391 (KR), filed on Jan. 10, 2019.
Prior Publication US 2021/0091351 A1, Mar. 25, 2021
Int. Cl. H01M 50/502 (2021.01); H01M 50/50 (2021.01); H01M 50/244 (2021.01); H01M 50/213 (2021.01); H01M 50/249 (2021.01); H01M 50/242 (2021.01); B60L 50/64 (2019.01)
CPC H01M 50/502 (2021.01) [B60L 50/64 (2019.02); H01M 50/213 (2021.01); H01M 50/242 (2021.01); H01M 50/244 (2021.01); H01M 50/249 (2021.01); H01M 50/50 (2021.01); H01M 2220/20 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A battery module comprising:
a plurality of can type secondary batteries arranged to be laid down in a horizontal direction;
a bus bar at least partially formed of an electrically conductive material to electrically connect the plurality of can type secondary batteries; and
a module case having an inner space to accommodate the plurality of can type secondary batteries, the module case comprising an outer wall to surround the inner space and a bumper portion protruding from an outer surface of the outer wall in an outward direction to absorb an external impact
wherein the bumper portion comprises:
an extension part protruding and extending from the outer wall of the module case in the outward direction; and
a plate-shaped part bent and extending from an end portion of the extension part in an extending direction in a direction corresponding to the outer wall of the module case,
wherein a plurality of ribs protruding in the outward direction from the plate-shaped part, and
wherein first ones of the plurality of ribs linearly extending in a first direction and second ones of the plurality of ribs linearly extending in a second direction to intersect with the first ones of the plurality of ribs such that plurality of ribs have a lattice shape.