US 12,451,529 B2
Battery module for detecting swelling phenomenon thereof
Won Wook Kim, Seoul (KR); Dong Hun Lim, Gyeonggi-do (KR); and Seung Hoon Ju, Daejeon (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Filed by SK INNOVATION CO., LTD., Seoul (KR)
Filed on Jun. 8, 2021, as Appl. No. 17/342,340.
Application 17/342,340 is a continuation of application No. 14/747,568, filed on Jun. 23, 2015, abandoned.
Claims priority of application No. 10-2014-0078337 (KR), filed on Jun. 25, 2014.
Prior Publication US 2021/0296712 A1, Sep. 23, 2021
Int. Cl. H01M 10/48 (2006.01); H01M 10/42 (2006.01); H01M 50/209 (2021.01); H01M 50/264 (2021.01); H01M 50/271 (2021.01)
CPC H01M 10/48 (2013.01) [H01M 10/425 (2013.01); H01M 50/209 (2021.01); H01M 50/264 (2021.01); H01M 50/271 (2021.01); H01M 2200/20 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A battery module capable of detecting swelling comprising:
a plurality of battery cell assemblies electrically connected and stacked on each other, each battery cell assembly including a battery cell and a cartridge surrounding an edge of the battery cell;
an uppermost battery cell assembly among the plurality of the battery cell assemblies, the uppermost battery cell assembly including an uppermost battery cell and an uppermost cartridge surrounding an edge of the uppermost battery cell;
an upper cover arranged on the uppermost battery cell assembly, the upper cover including a guide tube vertically protruding from an upper surface of the upper cover and having a hollow therein, wherein the upper surface of the upper cover faces away from the uppermost battery cell;
an overcharge protector disposed on the guide tube,
a strap section disposed over and across an upper surface of the uppermost battery cell, and positioned between the upper surface of the uppermost battery and the upper cover, the strap section has an elongated body part made of an elastically deformable material and disposed across the upper surface of the uppermost battery cell, and a press pin mounted on the elongated body part to reciprocate along the hollow of the guide tube between a contact position and a non-contact position with the overcharge protector; and
a lower cover arranged on a lowermost battery cell assembly among the plurality of the battery cell assemblies.