Battery

The utility model relates to the field of batteries, and particularly provides a battery which comprises a shell and a battery cell, and the shell comprises a first panel and a second panel; the battery cell radiator is positioned in the shell and is provided with a radiating through hole, and a medium inlet and a medium outlet of the radiating through hole are respectively positioned at two ends of the battery cell radiator; wherein the first panel and the second panel are respectively connected with two ends of the cell radiator, the first panel is provided with a first opening corresponding to the medium inlet, and the second panel is provided with a second opening corresponding to the medium outlet. According to the battery provided by the invention, heat generated by the battery core in the battery can be effectively and timely transferred to the external cold end with low thermal resistance, heat dissipation is efficient, the heat dissipation performance of the battery is remarkably improved so as to gu