Battery and electrical device

A battery, comprising:

• a plurality of battery cells arranged in a stacked manner along a first direction, wherein each of the battery cells comprises an electrode assembly, the electrode assembly comprising a main body portion and tabs protruding from the main body portion along a second direction, with the second direction being perpendicular to the first direction;
• and
• a thermal management component provided opposite to the battery cells along the first direction, the thermal management component being configured to regulate the temperature of the battery cells;
• wherein the projection of the main body portion in a plane perpendicular to the first direction and the projection of the thermal management component adjacent to the main body portion in the plane perpendicular to the first direction at least partially overlap with each other.