A battery cell, a battery and an electric device are provided. The battery cell includes electrode assemblies, a shell, and a pressure relief mechanism. The shell is used to accommodate the electrode assemblies. The pressure relief mechanism is provided on a lower portion of the shell and integrally formed with the shell. During normal use of the battery cell, the pressure relief mechanism is located at the lower portion of the shell.

Embodiments of the present application disclose a case, a battery cell, a battery, and a power consuming device. The case is applicable to the battery cell. The case is of a multi-layer structure. A material of an outermost case of the case includes at least one of the following: aluminum, an aluminum alloy, copper, a copper alloy, and chromium. According to the case, the battery cell, the battery, and the power consuming device in the embodiments of the present application, the service life of the case can be prolonged.

Embodiments of the present application disclose a case, a battery cell, a battery, and a power consuming device. The case is applicable to the battery cell. The case is of a multi-layer structure. A material of an outermost case of the case includes at least one of the following: aluminum, an aluminum alloy, copper, a copper alloy, and chromium. According to the case, the battery cell, the battery, and the power consuming device in the embodiments of the present application, the service life of the case can be prolonged.

Embodiments of the present application provides a housing, a battery cell, a battery, and an electrical apparatus. The housing is provided with an opening, and comprises a first wall arranged opposite to the opening and at least two second walls, wherein the first wall and the second walls are arranged to intersect each other. A transition area is arranged between every two adjacent second walls among the at least two second walls, and the maximum thickness T1 of the transition area and the maximum thickness T0 of the second wall with the maximum thickness among the second walls meet: T1>T0.

Embodiments of the present application provide a case, a battery cell, a battery, and a power consuming apparatus. The case includes a first case portion and a second case portion. An opening is formed in the first case portion. The first case portion includes a first wall opposite to the opening and a second wall connected to the first wall. The first wall and the second wall are integrally formed. The second case portion is fixedly connected to the second wall. In a depth direction of the first case portion, at least a portion of regions of the case is jointly formed by the first case portion and the second case portion.

Embodiments of the present application provide a case, a battery cell, a battery, and a power consuming apparatus. The case has an opening, and the case is of an integrally formed structure. The case includes a first wall and at least two second walls opposite to the opening. The first wall and the second walls intersect with each other. Two of the at least two second walls are connected by using a first rounded corner. An inner diameter R1 of the first rounded corner and a depth H of the case satisfy: 2.5 mmR120 mm and 50 mmH250 mm.

An outer packaging for electrical storage devices is composed of a laminate provided with at least a substrate layer, a barrier layer, an adhesive layer, and a thermally adhesive resin layer in this order, wherein the peak melting temperature for the thermally adhesive resin layer is observed at 130 C. or lower, the peak melting temperature for the adhesive layer is observed at 135 C. or higher, the resin constituting the thermally adhesive resin layer has a polyolefin skeleton, and the resin constituting the adhesive layer has a polyolefin skeleton.

An outer packaging for electrical storage devices is composed of a laminate provided with at least a substrate layer, a barrier layer, an adhesive layer, and a thermally adhesive resin layer in this order, wherein the peak melting temperature for the thermally adhesive resin layer is observed at 130 C. or lower, the peak melting temperature for the adhesive layer is observed at 135 C. or higher, the resin constituting the thermally adhesive resin layer has a polyolefin skeleton, and the resin constituting the adhesive layer has a polyolefin skeleton.

A secondary battery, a battery module, and/or a method for manufacturing the secondary battery are disclosed. A secondary battery includes a case accommodating an electrode assembly, and a terminal coupled to the case, and the terminal includes a softened region.

A secondary battery, a battery module, and/or a method for manufacturing the secondary battery are disclosed. A secondary battery includes a case accommodating an electrode assembly, and a terminal coupled to the case, and the terminal includes a softened region.