Battery pack

A battery pack, comprising:

• a battery column, wherein the battery column comprises at least two battery units, each of which comprises batteries, a heat insulation structure is provided between adjacent battery units, and the batteries of the battery units are arranged in a first direction;
• a liquid cooling tube, disposed on a surface of the battery column, configured to dissipate heat for the batteries, wherein the liquid cooling tube comprises cooling portions, the cooling portions are portions having orthographic projections on the battery column, the orthographic projections of the cooling portions on the battery column are cooling regions, the cooling regions of the cooling portions are located within a range of their corresponding battery units and do not overlap with the heat insulation structure, the cooling portions are disposed on at least one of a top portion and a bottom portion of the battery column, the cooling portions extend in a second direction, and the second direction is not parallel to the first direction;
• and
• wherein in each battery unit, one of the batteries adjacent to the heat insulation structure is a target battery, another one of the batteries not adjacent to the heat insulation structure is a non-target battery, the target battery and the non-target battery do not share the same cooling portion, and at least one of the batteries is located outside a range of the cooling regions.