Battery and related apparatus, production method and production device therefor
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.
1. A battery, comprising:
a battery cell, comprising:
a housing and a pressure relief mechanism configured to actuate when an internal pressure or temperature of the battery cell reaches a threshold to relieve the internal pressure;
wherein the pressure relief mechanism is arranged on a bottom wall of the housing;
an attachment component attached to the bottom wall of the housing, excluding the pressure relief mechanism, by an adhesive; and
an isolation component situated to prevent the adhesive from being applied between the attachment component and the pressure relief mechanism;
wherein the pressure relief mechanism has an actuation region and the pressure relief mechanism is configured to form a relief channel for relieving the internal pressure in the actuation region when the internal pressure or temperature of the battery cell reaches a threshold;
wherein the isolation component has a main body and a protrusion arranged protruding from a surface of the main body, the protrusion arranged to correspond to a position of the actuation region of the pressure relief mechanism, and the protrusion configured to at least surround the actuation region to prevent the adhesive from entering the actuation region.
2. The battery according to claim 1 , wherein the attachment component comprises an avoidance structure configured to provide a space allowing the pressure relief mechanism to be actuated, and
wherein an avoidance chamber is formed between the avoidance structure and the pressure relief mechanism.
3. The battery according to claim 2 , wherein the isolation component is configured to at least surround a peripheral edge of a side of the avoidance chamber facing the pressure relief mechanism to prevent the adhesive from entering the avoidance chamber.
4. The battery according to claim 2 , wherein the isolation component has a main body and a protrusion arranged protruding from a surface of the main body, the protrusion is arranged to correspond to a position of the avoidance chamber, and the protrusion is configured to at least surround a peripheral edge of the avoidance chamber facing the pressure relief mechanism to prevent the adhesive from entering the avoidance chamber.
5. The battery according to claim 4 , wherein a height of the protrusion is greater than or equal to a predetermined application height of the adhesive, and the protrusion is configured to be compressed when the battery cell is attached to the attachment component, to have a height consistent with that of the adhesive.
6. The battery according to claim 4 , wherein the protrusion is formed on the surface of the main body by a blister process.
7. The battery according to claim 1 , wherein the isolation component is configured to be capable of being damaged by emissions from the battery cell when the pressure relief mechanism is actuated.
8. The battery according to claim 7 , wherein the isolation component is made of a thermoplastic material having a melting point not greater than a discharge temperature of the emissions.
9. The battery according to claim 1 , wherein the isolation component comprises a coating for preventing the adhesive from being applied thereto.
10. The battery according to claim 1 , wherein the attachment component comprises a thermal management component for accommodating a fluid to adjust a temperature of the battery cell.
11. The battery according to claim 10 , wherein the avoidance structure is formed in the thermal management component, and the avoidance structure comprises an avoidance bottom wall and an avoidance side wall surrounding the avoidance chamber.
12. The battery according to claim 11 , wherein the avoidance side wall is configured to be damaged when the pressure relief mechanism is actuated, such that the fluid flows out.
13. An apparatus, comprising:
a battery, comprising:
a battery cell, comprising:
a housing and a pressure relief mechanism configured to actuate when an internal pressure or temperature of the battery cell reaches a threshold to relieve the internal pressure;
wherein the pressure relief mechanism is arranged on a bottom wall of the housing;
an attachment component attached to the bottom wall of the housing, excluding the pressure relief mechanism, by an adhesive; and
an isolation component situated to prevent the adhesive from being applied between the attachment component and the pressure relief mechanism;
wherein the battery is configured to provide electrical energy to the apparatus;
wherein the pressure relief mechanism has an actuation region and the pressure relief mechanism is configured to form a relief channel for relieving the internal pressure in the actuation region when the internal pressure or temperature of the battery cell reaches a threshold;
wherein the isolation component has a main body and a protrusion arranged protruding from a surface of the main body, the protrusion arranged to correspond to a position of the actuation region of the pressure relief mechanism, and the protrusion configured to at least surround the actuation region to prevent the adhesive from entering the actuation region.