Abstract: Disclosed are a cell and a secondary battery. The cell includes a cell body; a length of the cell body is L, and a thickness of the cell body is H; and the L and the H satisfy the following relational expression: L/H>7. According to the cell and the secondary battery provided in the disclosure, by reasonably designing a relationship between the length L and the thickness H of the cell body, that is, a ratio between the length L and the thickness H of the cell body is defined within a specific relational expression of L/H>7, the heat dissipation performance of the cell is improved, and the heat inside the cell is discharged to the outside timely, such that the service life and safety performance of the secondary battery are improved, thereby having a higher potential for market promotion.

Abstract: Provided is a vehicle rear spoiler control method, including the following steps: receiving a rear spoiler operation request; starting an environment perception apparatus of a vehicle, and acquiring environment perception data; performing obstacle detection in a preset range of a position where the rear spoiler of the vehicle is located according to the environment perception data; and controlling operation of the rear spoiler of the vehicle according to a result of the obstacle detection. By using the vehicle rear spoiler control method, the safety of operation of the rear spoiler can be improved. Further provided is an apparatus applying the vehicle rear spoiler control method and the vehicle.