Patent ID: 11881597
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC H

Claim 0:
1. A battery module comprising:
a bus bar having a thin plate shape having a top surface and a bottom surface spaced from the top surface in a thickness direction, a left surface and a right surface spaced from each other in a length direction and having linear grooves provided in the left surface between a top edge and a bottom edge of the left surface and the right surface between a top edge and a bottom edge of the right surface along the length direction, respectively; and
battery cells respectively located on the left surface and the right surface of the bus bar, an electrode lead of each of the battery cells inserted into a respective one of the grooves, and electrically connected to each other with the bus bar interposed therebetween,
wherein sizes of the grooves increase in the thickness direction above a predetermined temperature to release a physical contact between the electrode leads and the bus bar such that an electrical connection between the battery cells is released, and
wherein the grooves are formed by shape memory alloy plates stacked in the thickness direction of the bus bar.