Battery and electric device

The utility model discloses a battery and a power utilization device, and the battery comprises a shell, a battery module, a battery module, a battery module, a battery module and a battery module, wherein the outer surface of the shell is provided with a clearance groove; and the electric appliance element is arranged in the clearance groove and is electrically connected with the battery. Therefore, the clearance groove is formed in the outer surface of the shell, and the electrical component is arranged in the clearance groove, so that the battery structure is complete, the shell can wrap the electrical component, the space utilization rate of the battery is improved, and the battery disclosed by the utility model is more suitable for the structure of an ultra-thin product.