BOX BODY FOR BATTERY, BATTERY, ELECTRIC APPARATUS, AND BATTERY MANUFACTURING METHOD AND DEVICE

The present application relates to a battery, an electric apparatus, and a battery manufacturing method and device. A box body is provided, comprising: a bearing plate for bearing a battery, and a one-way gravity valve provided on the bearing plate; the one-way gravity valve is configured to be closed when the gravity of a liquid in the box body is less than a threshold, and to be opened when the gravity of the liquid in the box body reaches the threshold, such that the liquid is discharged by means of the one-way gravity valve. By providing the one-way gravity valve, the liquid in the box body can be discharged in time when there is too much liquid in the box body, for example, when the gravity of the liquid reaches a threshold, thereby preventing too much liquid from staying in the box body for a long time, and further reducing potential safety risks and prolonging the service life of the battery.