Contemporary Amperex Technology Co., Ltd.

Contemporary Amperex Technology (hong Kong) Limited

Contemporary Amperex Technology Limited

Mingguang Gu

Xiaobo Chen

Yao Li

Piaopiao Yang

Lu Hu

Xianda Li

Jinru Yue

Yujie Pu

Kai Wu

Xuehui Wang

Yucang Hao

Jingfeng Bai

Sike Liu

Qiu Jin

The battery cell includes a shell, the shell has a wall portion, the wall portion includes a weak portion, and the weak portion is configured to be destroyed when the battery cell releases internal pressure. An outer surface of the wall portion has a center point. A maximum distance between a projection of the weak portion on the outer surface of the wall portion and the center point is a, the minimum radial dimension of the outer surface of the wall portion is A, and a and A satisfy: a≤0.4A. By setting a≤0.4A, the weak portion is arranged at a region, with a relatively low stiffness, of the wall portion. When the battery cell releases the internal pressure, the region undergoes a large deformation under the action of gas, and therefore the weak portion arranged at the region is easily damaged.

Battery cell, battery, and electrical device

Embodiments of a box of a battery, a battery, a power consumption device, and a method and device for producing a battery are provided. The box of the battery includes: an electrical chamber; a thermal management component; and a collection chamber, configured to collect emissions from the battery cell provided with the pressure relief mechanism when the pressure relief mechanism is actuated; wherein the thermal management component is configured to isolate the electrical chamber from the collection chamber, a pressure relief region is disposed on the thermal management component, and the emissions collected by the collection chamber is discharged through the pressure relief region. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

Box of battery, battery, power consumption device, and method and device for producing battery

Embodiments of the present application provides a battery, a power consumption apparatus, a method and an apparatus for producing the battery. The battery includes: a battery cell, the battery cell including a pressure relief mechanism, the pressure relief mechanism being disposed on a first wall of the battery cell; a first surface of the thermal management component being attached to the first wall; and a support, the support being arranged opposite to the pressure relief mechanism, the support being configured to support the pressure relief mechanism when the pressure relief mechanism is actuated, so that the pressure relief mechanism is opened at a predetermined angle, therefore emissions from the battery cell can be discharged toward the thermal management component. The technical solutions of embodiments of the present application can enhance safety of batteries.

Battery, power consumption device, method and device for producing battery

The present application provides a box of a battery, a battery, and a power consumption device. The box includes: a first component, including a first interface; a second component, configured to connect with the first component to form a chamber, the second component including a second interface, the second interface being configured to be arranged opposite to the first interface; a first locking mechanism, configured to lock the first component and the second component, so that the first interface and the second interface are sealed and connected; the first locking mechanism is configured to be actuated when an internal pressure of a chamber exceeds a preset value, so that the first interface and the second interface break away from a sealed state to relieve the internal pressure of the chamber. The pressure relief ability of the battery can be improved, and the safety of the battery can be enhanced.

Embodiments of the present application provide a battery, a power consumption apparatus, a method and apparatus for producing a battery. The battery includes: a battery cell including a pressure relief mechanism disposed on a first wall; and a thermal management component, a first surface of the thermal management component being attached to the first wall, and the thermal management component being provided with a pressure relief zone; where the first wall is provided with a first restraint member, the thermal management component is provided with a second restraint member, and the first restraint member and the second restraint member are arranged to be mated, so that the pressure relief mechanism is arranged opposite to the pressure relief zone. A battery, a power consumption apparatus, a method and apparatus for producing a battery of the present application could enhance safety of the battery.

Battery, power consumption apparatus, method and apparatus for producing battery

Embodiments of the present application provide a battery cell, a battery, a power consumption apparatus, a method for producing a battery cell and an apparatus for producing a battery cell. The battery cell includes: a pressure relief mechanism, the pressure relief mechanism being disposed on at least one wall of the battery cell; and a protective film enclosing an outer surface of the at least one wall, the protective film being configured to provide insulation protection for the at least one wall; where the protective film includes a first portion at least covering the pressure relief mechanism. Through technical solutions of the embodiments of the present application, insulation performance of a battery cell could be improved; meanwhile, deformation of a pressure relief mechanism could be suppressed, creep of the pressure relief mechanism could be reduced, and the service life of the pressure relief mechanism could be increased.

Battery cell, battery, power consumption apparatus, method and apparatus for producing battery cell

A shell for a battery cell includes a pressure relief mechanism that includes: a body; a first weakened portion arranged on the body, the first weakened portion having two first free ends, and a line connecting the two first free ends not completely overlapping with the first weakened portion and jointly defining a pressure relief portion; and a second weakened portion arranged on the body, a first projection of the first weakened portion on a plane perpendicular to a first direction not intersecting a second projection of the second weakened portion on the plane, the first direction being a thickness direction of the pressure relief portion. The pressure relief portion is configured to be opened with the first weakened portion as a boundary and flip toward one side where the second weakened portion is located when an internal pressure or temperature of the battery cell reaches a threshold.

Shell for battery cell, battery cell, battery, and power consuming device

Embodiments of the present application provide a box of a battery. The box includes: an electrical chamber configured to accommodate a plurality of battery cells, a battery cell including a pressure relief mechanism, and the pressure relief mechanism being configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; a thermal management component configured to accommodate a fluid to adjust the temperature of the battery cell; and a collection chamber configured to collect emissions discharged from the battery cell when the pressure relief mechanism is actuated, where the electrical chamber and the collection chamber are disposed on both sides of the thermal management component, a wall of the collection chamber is provided with a first pressure relief zone, and the first pressure relief zone is configured to relieve the emissions in the collection chamber.

Box of battery, battery, power consumption device, and method and apparatus for producing box

Embodiments of the present application provide a battery, a power consumption device, a method and a device for producing the battery. The battery includes: a battery cell, including a pressure relief mechanism, wherein the pressure relief mechanism is disposed on a first wall of the battery cell; a thermal management component, wherein a first surface of the thermal management component is attached to the first wall, and the thermal management component is provided with a pressure relief hole opposite to the pressure relief mechanism; and a baffle configured to cover a part of the pressure relief hole, so that when the pressure relief mechanism is actuated, a discharge direction of the emissions entering the pressure relief hole is changed. The battery, the power consumption device, the method and the device for producing the battery provided in the embodiments of the present application can enhance safety of batteries.

Embodiments of the present application are provided with a box of a battery, a battery, a power consumption device, and a method and device for producing a battery. The box of the battery includes: an electrical chamber; a thermal management component; and a collection chamber, configured to collect emissions from the battery cell provided with the pressure relief mechanism when the pressure relief mechanism is actuated; wherein the thermal management component is configured to isolate the electrical chamber from the collection chamber, a pressure relief region is disposed on the thermal management component, and the emissions collected by the collection chamber is discharged through the pressure relief region. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

Embodiments of the present application provide a battery, a power consumption apparatus, and a method and apparatus for producing a battery. The battery includes: a plurality of battery cells, the battery cell comprising a housing, the housing being configured to be actuated when an internal pressure or temperature of the housing reaches a threshold, to relieve the internal pressure of the housing; a plurality of first boxes, the first box being configured to accommodate at least one battery cell of the plurality of battery cells, the first box including a pressure relief region, and the pressure relief region being configured to relieve an internal pressure of the first box; and a second box, the second box being configured to accommodate the plurality of first boxes. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

Battery, power consumption apparatus, and method and apparatus for producing battery

The present application discloses a battery and a related apparatus, production method and production device therefor. The battery includes: a battery cell, the battery cell including a pressure relief mechanism configured to be capable of being actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; an attachment component adapted to be attached to the battery cell by an adhesive; and an isolation component configured to be capable of preventing the adhesive from being applied between the attachment component and the pressure relief mechanism. By providing the isolation component, it is possible to prevent the adhesive from being applied between the attachment component and the pressure relief mechanism in an effective manner in a process of battery production. Meanwhile, application efficiency and accuracy of the adhesive could be improved, thereby improving production efficiency of the battery.

Battery and related apparatus, production method and production device therefor

An embodiment of the present application is provided with a battery box, a battery, a power consumption device, and a method for producing a battery and an apparatus for producing a battery. The box of the battery includes: an electrical chamber, configured to accommodate a battery cell group; a collection chamber, configured to collect emissions of the battery cell provided with the pressure relief mechanism when the pressure relief mechanism is actuated; an isolation component for isolating the electrical chamber and the collection chamber, such that the electrical chamber and the collection chamber are arranged on both sides of the isolation component; wherein a surface of the isolation component that is close to the battery cell group is provided with an avoidance opening, the avoidance opening extends along the first direction, and the plurality of pressure relief mechanisms of the battery cell group face the avoidance opening.

Growing community of inventors

Ningde, China

Mingguang Gu