Patent ID: 9455436
Filing Date: 2016-09-27
CPC Classification: H01M,Y02E

Claim Text:
1. A battery pack configured such that battery modules, each of which comprises a plurality of battery cells or unit modules connected to each other in series, are connected to each other in series in a state in which the battery modules are in tight contact with each other or stacked adjacent to each other, the battery pack comprising: a fuse connected in series in an electrical connection circuit between the battery modules; a circuit breaker mounted at an outside of at least one of the battery modules to perform electric conduction when the battery cells swell, the circuit breaker being electrically connected to the electrical connection circuit to break the fuse when electric conduction is performed due to swelling of the battery cells, and wherein the circuit breaker comprises: a first conductive member contacting a side of one of the battery modules; a second non-conductive member coupled to the first conductive member via an elastic guide in a state in which the second member is fixed in position to the battery module; and a conduction member comprising a cathode conduction part and an anode conduction part mounted to the second non-conductive member such that the cathode conduction part and the anode conduction part come into contact with the first conductive member according to the increase in volume of the battery modules at the time of swelling of the battery cells, the cathode conduction part and the anode conduction part being electrically connected to the electrical connection circuit between the battery modules.