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