Battery and related apparatus, production method and production device therefor
The present application discloses a battery including a battery cell, a thermal management component, an avoidance chamber and a collection chamber. The battery cell includes a pressure relief mechanism; the thermal management component is configured to adjust a temperature of the battery cell; the avoidance chamber is configured to provide a space allowing the pressure relief mechanism to be actuated; and the collection chamber is configured to collect emissions from the battery cell when the pressure relief mechanism is actuated. The thermal management component is configured such that emissions are capable of passing through the thermal management component when the pressure relief mechanism is actuated, and then entering the collection chamber through the avoidance chamber. Therefore, the pressure relief mechanism may not need to be provided on a side of an electrode terminal of the battery cell and emissions relieved by the pressure relief mechanism may be collected.
1. A battery, comprising:
a battery cell comprising a pressure relief mechanism, 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 a temperature of the battery cell;
an avoidance chamber formed between the pressure relief mechanism and the thermal management component, the avoidance chamber being configured to provide a space allowing the pressure relief mechanism to be actuated; and
a collection chamber located on an outer side of the avoidance chamber for collecting emissions from the battery cell when the pressure relief mechanism is actuated,
wherein the thermal management component is configured such that emissions of the battery cell are capable of passing through the thermal management component when the pressure relief mechanism is actuated, and then entering the collection chamber through the avoidance chamber;
wherein the thermal management component is provided between the avoidance chamber and the collection chamber and isolates the avoidance chamber and the collection chamber from each other, and the thermal management component is configured to be capable of being damaged by the emissions of the battery cell, so that the emissions of the battery cell enter the collection chamber from the avoidance chamber.
2. The battery according to claim 1 , wherein the thermal management component is provided with a through hole, and the through hole is configured such that the avoidance chamber and the collection chamber are in communication with each other.
3. The battery according to claim 2 , wherein the avoidance chamber is formed from the through hole provided on the thermal management component, so that the emissions from the battery cell are capable of directly entering the collection chamber through the through hole when the pressure relief mechanism is actuated.
4. The battery according to claim 2 , wherein the thermal management component is internally provided with a flow channel for fluid flow, wherein the avoidance chamber is configured to be surrounded by the flow channel.
5. The battery according to claim 4 , wherein the flow channel is configured to remain intact in a process of the emissions of the battery cell flowing through the thermal management component.
6. The battery according to claim 4 , wherein the thermal management component is configured such that the emissions of the battery cell are capable of damaging a wall of the flow channel, so that the flow channel is in communication with the avoidance chamber.
7. The battery according to claim 1 , wherein the avoidance chamber is formed from an avoidance structure of the thermal management component that is open toward the pressure relief mechanism, and the avoidance structure comprises an avoidance side wall surrounding the avoidance chamber.
8. The battery according to claim 7 , wherein the avoidance chamber is formed from an avoidance structure of the thermal management component that is open toward the pressure relief mechanism, the avoidance structure comprises an avoidance side wall surrounding the avoidance chamber, and the avoidance side wall is configured to be damaged when the pressure relief mechanism is actuated, so that the fluid flows out.
9. The battery according to claim 8 , wherein the avoidance side wall is at a predetermined included angle with respect to a direction of the pressure relief mechanism toward the thermal management component, and the predetermined included angle is greater than or equal to 15° and less than or equal to 85°.
10. The battery according to claim 1 , wherein the thermal management component is provided with a relief mechanism opposite to the avoidance chamber, and the relief mechanism is configured to be capable of being actuated to release emissions in the avoidance chamber to the collection chamber.
11. The battery according to claim 10 , wherein the relief mechanism is configured to be actuated when an internal pressure or temperature in the avoidance chamber reaches a threshold.
12. The battery according to claim 10 , wherein the relief mechanism is configured to be actuated when a temperature of the emissions in the avoidance chamber reaches a threshold.
13. The battery according to claim 10 , wherein the relief mechanism comprises a weakened structure formed on a wall of the thermal management component.
14. The battery according to claim 1 , wherein the battery comprises a case shell configured to accommodate the battery cell, and the thermal management component constitutes at least a portion of the case shell.
15. The battery according to claim 1 , wherein the battery further comprises a protective member, and the collection chamber is defined between the thermal management component and the protective member.
16. The battery according to claim 15 , wherein the protective member comprises a concave chamber having an opening toward the thermal management component to form the collection chamber.
17. The battery according to claim 15 , wherein a sealing member is placed between the protective member and the thermal management component, and the protective member and the thermal management component are firmly engaged by a fastener;
wherein the sealing member is configured to be damaged when a temperature of the emissions reaches a predetermined temperature, so as to relieve pressure in the collection chamber.
18. An apparatus comprising a battery, the battery being configured to provide electric energy and comprising:
a battery cell comprising a pressure relief mechanism, 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 a temperature of the battery cell;
an avoidance chamber formed between the pressure relief mechanism and the thermal management component, the avoidance chamber being configured to provide a space allowing the pressure relief mechanism to be actuated; and
a collection chamber located on an outer side of the avoidance chamber for collecting emissions from the battery cell when the pressure relief mechanism is actuated,
wherein the thermal management component is configured such that emissions of the battery cell are capable of passing through the thermal management component when the pressure relief mechanism is actuated, and then entering the collection chamber through the avoidance chamber;
wherein the thermal management component is provided between the avoidance chamber and the collection chamber and isolates the avoidance chamber and the collection chamber from each other, and the thermal management component is configured to be capable of being damaged by the emissions of the battery cell, so that the emissions of the battery cell enter the collection chamber from the avoidance chamber.