BATTERY BOX BODY, BATTERY, ELECTRIC DEVICE, AND BATTERY PREPARATION METHOD AND DEVICE

Embodiments of the present application provide a case (11) of a battery, a battery (10), a power consuming apparatus, and a method (300) and apparatus (400) for manufacturing a battery. The case (11) is provided with at least two pressure balancing mechanisms (113), the pressure balancing mechanisms (113) being used to balance the pressure inside and outside the case (11), and the at least two pressure balancing mechanisms (113) being connected to a ventilation assembly (114) at an outer side of the case (11), wherein a first ventilation assembly (114a) connected to a first pressure balancing mechanism (113a) in the at least two pressure balancing mechanisms (113) is used to open the first pressure balancing mechanism (113a) to introduce air into the case (11), and a second ventilation assembly (114b) connected to a second pressure balancing mechanism (113b) in the at least two pressure balancing mechanisms (113) is used to open the second pressure balancing mechanism (113b) so that the air in the case (11) is discharged. According to the technical solutions of the embodiments of the present application, the safety of the battery (10) can be enhanced.