公开(公告)号：US09768473B2

公开(公告)日：2017-09-19

申请号：US14276539

申请日：2014-05-13

Applicant: LG CHEM, LTD.

Inventor： Tae Hwan Roh ,  Jin Kyu Lee ,  Jun Seok Choi ,  Seong Tae Kim ,  Tae Hyuck Kim ,  Dongyeon Kim

IPC: H01M2/34 ,  H01M10/42 ,  H01M2/10 ,  H01H35/00 ,  H01H1/58

CPC classification number: H01M10/425 ,  H01H35/006 ,  H01H2001/5877 ,  H01M2/1016 ,  H01M2/1022 ,  H01M2/1077 ,  H01M2/34 ,  H01M2/345 ,  H01M2010/4271 ,  H01M2220/20

Abstract: Disclosed is a battery pack configured such that a plurality of battery modules is connected to each other in series in a state in which the modules are in contact with each other or stacked adjacent to each other, the pack being fixed such that a stacked state of the modules is maintained even when volume of the modules is changed during charge and discharge, the pack including a cut-off portion connected in series to an electrical connection circuit between modules, a fixing member to fix a circuit breaker to at least one outer surface of the pack, and the breaker configured to be electrically conducted when an outer surface of at least one module expands by a reference volume value or more, the breaker being connected in series to the electrical connection circuit to short-circuit the cut-off portion when electric conduction is performed due to swelling of the modules.