BATTERY PACK

The present application relates to a technical filed of energy storage devices, and particularly relates to a battery pack. The battery pack includes: a plurality of battery modules, in which each battery module includes a plurality of unit batteries electrically connected to each other, and output electrodes are arranged at joints of each of the battery modules in a height direction and in a length direction; a flexible electrical connection member, electrically connected to the output electrode, and arranged at an end of the battery module in the length direction; a fixing member, arranged on an outside of the flexible electrical connection member to fix the flexible electrical connection member on the battery module.