Battery cover assembly, battery, battery pack and electric equipment

Abstract

The utility model provides a battery cover assembly, a battery, a battery pack and electric equipment, and relates to the technical field of batteries, and the cover assembly comprises a cover body and a battery management system module. And the battery management system module is arranged on the cover body and is electrically connected with the battery, and the battery management system module is used for detecting the battery and outputting detection data. According to the battery cover assembly provided by the embodiment of the invention, centralized detection can be carried out through the battery management system module integrated on the battery cover, detection data can be obtained, the situation of low battery monitoring reliability caused by too many wires can be avoided or reduced, and the integration level is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a battery cover assembly, a battery, a battery pack and an electrical equipment. BACKGROUND

[0002] A battery can provide power for an electrical equipment, such as a power battery used on a new energy vehicle.

[0003] During use of the battery, there is a risk of thermal runaway due to factors such as rising temperature and collision, and therefore it is particularly important to monitor parameters such as voltage and temperature of the battery. In the related art, a hole is punched in a connecting piece of the battery to lead out a collection line, so as to obtain parameters such as voltage and temperature of the battery in a timely manner.

[0004] However, as the number of batteries increases, the wiring of the collection line becomes more and more complex, and is easily affected by uncontrollable factors such as temperature, vibration and battery expansion, which can cause poor contact or disconnection of the wire harness. Utility model content

[0005] Therefore, the present application provides a battery cover assembly, a battery, a battery pack and an electrical equipment to solve the problem of low reliability of battery monitoring caused by excessive collection lines on the existing battery.

[0006] In a first aspect, the present application provides a battery cover assembly, comprising a cover body and a battery management system module.

[0007] The battery management system module is arranged on the cover body and is electrically connected to the battery. The battery management system module is used to detect the battery and output detection data.

[0008] In a possible implementation, the cover body is provided with a first mounting slot, and part of the battery management system module is inserted into the first mounting slot.

[0009] In a possible implementation, a first insulator is arranged between the first mounting slot and the battery management system module.

[0010] In a possible implementation, the battery cover assembly further comprises two pole column assemblies, and the cover body is provided with two second mounting slots.

[0011] Part of the pole column assemblies are respectively inserted into the second mounting slots, and the battery management system module is electrically connected to the two pole column assemblies.

[0012] In a possible implementation, the battery management system module is located between the two second mounting slots, and the battery management system module and the two second mounting slots are located on the same side of the cover body.

[0013] In a possible implementation, the battery cover assembly further comprises an explosion-proof valve and a spray valve detection member, and the explosion-proof valve and the spray valve detection member are arranged on the cover body.

[0014] The spray valve detection member at least partially covers the explosion-proof valve, and the spray valve detection member is electrically connected to the battery management system module and is configured to detect the working state of the explosion-proof valve.

[0015] In a possible implementation, the battery cover assembly further comprises a liquid injection cap, and the cover body is provided with a liquid injection port, and the liquid injection cap is sealed to the liquid injection port.

[0016] In a possible implementation, the battery management system module comprises a micro control unit, a detection unit and a communication unit, and the micro control unit is internally provided with a storage area.

[0017] The detection unit is configured to detect the battery and store detection data in the storage area, and the communication unit is configured to transmit the detection data.

[0018] In a possible implementation, the detection unit comprises at least one of a battery voltage detection unit and a shell voltage detection unit, the battery voltage detection unit is configured to detect the voltage between the positive electrode and the negative electrode of the battery, and the shell voltage detection unit is configured to detect the voltage between the shell of the battery and the negative electrode.

[0019] In a possible implementation, the detection unit further comprises a temperature detection unit, and the temperature detection unit is configured to detect the temperature of the shell.

[0020] In a possible implementation, the cover body is provided with an explosion-proof valve, and the detection unit further comprises a spray valve detection unit, and the spray valve detection unit is configured to detect the working state of the explosion-proof valve.

[0021] In a possible implementation, the battery cover assembly further comprises an explosion-proof valve and a spray valve detection member, and the explosion-proof valve and the spray valve detection member are arranged on the cover body.

[0022] In a possible implementation, the battery cover assembly further comprises an explosion-proof valve and a spray valve detection member, and the explosion-proof valve and the spray valve detection member are arranged on the cover body.

[0023] In a possible implementation, the battery cover assembly further comprises an explosion-proof valve and a spray valve detection member, and the explosion-proof valve and the spray valve detection member are arranged on the cover body.

[0024] In a possible implementation, the battery cover assembly further comprises an explosion-proof valve and a spray valve detection member, and the explosion-proof valve and the spray valve detection member are arranged on the cover body.

[0025] The application provides a battery cover assembly, a battery, a battery pack and an electric device. The battery cover assembly comprises a cover body and a battery management system module. The battery management system module is arranged on the cover body and electrically connected with the battery. On one hand, the battery management system module detects parameters such as voltage and temperature of the battery and outputs detection data. On the other hand, the battery management system module is powered by the battery. Therefore, the battery cover assembly provided by the application can detect and obtain detection data by the battery management system module integrated on the battery cover, avoid or reduce the situation of low reliability of battery monitoring caused by too many wirings, and has higher integration. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0027] Figure 1 The structural schematic diagram of the battery cover assembly provided by the embodiments of the application is shown in the figure.

[0028] Figure 2 For Figure 1 The internal composition schematic diagram of the battery management system module is shown in the figure.

[0029] Reference signs:

[0030] 100: cover body;

[0031] 110: first mounting groove;

[0032] 111: first insulator;

[0033] 120: second mounting groove;

[0034] 130: liquid injection port;

[0035] 200: battery management system module;

[0036] 201: data communication interface;

[0037] 210: micro control unit;

[0038] 211: storage area;

[0039] 220: detection unit;

[0040] 221: battery voltage detection unit;

[0041] 222: housing voltage detection unit;

[0042] 223: temperature detection unit;

[0043] 224: injection valve detection unit;

[0044] 230: communication unit;

[0045] 231: wired communication unit;

[0046] 232: wireless communication unit;

[0047] 300: pole assembly;

[0048] 400: explosion-proof valve;

[0049] 500: injection valve detection member. DETAILED DESCRIPTION

[0050] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, like reference numerals refer to like elements throughout the description. The following exemplary embodiments are not representative of all embodiments consistent with the present application. Rather, they are merely examples of methods and apparatuses consistent with some aspects of the present application, as detailed in the appended claims.

[0051] The terms "first", "second", "third", "fourth" and the like, if any, used in the description and in the claims of the present application as well as above-mentioned drawings, are used to distinguish between similar objects and not necessarily for describing a specific sequential or chronological order. It is to be understood that the use of the terms so construed can be interchanged, in order to describe the embodiments of the present application herein described, for example, could be implemented in an order other than the one illustrated or described herein. Also, the terms "comprise", "comprising", "including", "including", "have" and "having" and any variations thereof, are intended to cover non-exclusive inclusions, for example, a process, method, system, product or apparatus that comprises a list of steps or units is not necessarily limited to those steps or units that are clearly listed, but can include other steps or units not clearly listed or inherent to such processes, methods, products or apparatuses.

[0052] At present, a lithium battery system is usually composed of a plurality of batteries in series or series-parallel combination. In order to manage the batteries, the voltage and temperature of the batteries need to be monitored. The conventional method is to punch holes in the connecting pieces between the batteries and then rivet them to lead out the sampling lines of the battery voltage and temperature. When the number of batteries increases, the complexity of the system wiring will also increase exponentially, and the stress caused by temperature, cell expansion, transportation vibration, etc. can easily cause poor contact or even disconnection of the wiring harness.

[0053] In addition, the lithium battery has the characteristics of high cycle life, and the retired battery in some high-standard use scenarios can be used again, that is, cascade utilization. However, since the original BMS system no longer exists, it is difficult to understand the past use of the single battery, and it is difficult to quickly screen and fix the capacity, so this problem needs to be solved.

[0054] In view of the above problems existing in the prior art, the application provides a battery cover assembly, a battery, a battery pack and a power utilization equipment. The battery cover assembly provided by the application comprises a cover body and a battery management system module. By arranging the battery management system module on the cover body and electrically connecting the battery management system module with the battery, on the one hand, the battery management system module detects parameters such as voltage and temperature of the battery and outputs detection data, and on the other hand, the battery management system module is powered by the battery, so that the detection data is concentrated and obtained by the battery management system module integrated on the battery cover, thereby avoiding or reducing the situation of low reliability of battery monitoring caused by too many wirings, and the integration degree is higher.

[0055] The technical solutions of the application will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described in detail in some embodiments.

[0056] In a first aspect, referring to Figures 1-2 The battery cover assembly provided by the embodiment of the application comprises a cover body 100 and a battery management system module 200.

[0057] The battery management system module 200 is arranged on the cover body 100 and is used to be electrically connected with the battery. The battery management system module 200 is used to detect the battery and output detection data.

[0058] The cover body 100 in the embodiment is also called a cover plate, a top cover or the like of the battery, which can be a thin plate structure in the shape of a rectangle or a cylinder, and specifically matches the shape of a mounting port on the shell.

[0059] The battery management system module 200 in the embodiment is used to monitor the battery, also called a BMS (full name: BATTERY MANAGEMENT SYSTEM) module, which is generally an integrated circuit module. At least the voltage, temperature and other parameters in the use process of the battery can be detected, the detection data can be obtained by centralized processing, and the detection data can be output to the external battery management system by wired or wireless mode, so as to monitor the batteries in real time and improve the safety of the battery use.

[0060] Specifically, as Figure 1As shown, the battery management system module 200 can be connected to the cover 100 through methods such as plugging, snapping, screwing, and welding, so as to be integrated with the shell to form a single battery, resulting in higher integration and a more compact structure. The battery management system module 200 is electrically connected to the battery, detecting parameters such as battery voltage and temperature and outputting the detection data, while also utilizing the battery for power.

[0061] It is understandable that, compared to using multiple wiring harnesses for a single battery, the application of the battery cover assembly in this embodiment can centrally detect and obtain detection data through the battery management system module 200 integrated on the battery cover, avoiding or reducing the situation where low reliability of battery monitoring is caused by too many wirings, and achieving a higher degree of integration.

[0062] Therefore, the battery cover assembly provided in this embodiment includes a cover body 100 and a battery management system module 200. By placing the battery management system module 200 on the cover body 100 and electrically connecting it to the battery, the battery management system module 200 can detect parameters such as battery voltage and temperature and output detection data, while also being powered by the battery. This achieves centralized detection and data acquisition through the battery management system module 200 integrated on the battery cover, avoiding or reducing the low reliability of battery monitoring caused by excessive wiring, resulting in higher integration.

[0063] In some embodiments, a first mounting groove 110 is provided on the cover 100, and a portion of the battery management system module 200 is inserted into the first mounting groove 110.

[0064] Specifically, such as Figure 1 As shown, a first mounting groove 110 is provided on the cover 100. This groove can be a recessed groove or a through groove. Part of the battery management system module 200 can be tightly fitted into the first mounting groove 110 to effectively control the thickness of the entire cover assembly and make the structure more compact. The size, depth, and other parameters of the first mounting groove 110 can be determined according to the size of the battery management system module 200, and are not specifically limited in this embodiment.

[0065] In other embodiments, not shown in the figures, a plug-in protrusion may be provided on the cover 100, and a matching plug-in groove may be provided on the battery management system module 200. The plug-in connection between the battery management system module 200 and the cover 100 can also be achieved through the connection between the plug-in groove and the plug-in protrusion.

[0066] Furthermore, in this embodiment, a first insulator 111 is provided between the first mounting slot 110 and the battery management system module 200.

[0067] Specifically, such as Figure 1As shown, the first insulator 111 can be an insulating ring, an insulating pad, etc., which can be made of an insulating material such as plastic, and is arranged around the battery management system module 200 and plays a role of isolation between the battery management system module 200 and the cover 100, so as to avoid the conductive situation between the battery management system module 200 and the cover 100. The specific shape, size, etc. of the first insulator 111 can be determined according to the size of the battery management system module 200, which is not specifically limited in the embodiment.

[0068] In some embodiments, the battery cover assembly provided in the embodiment of the application further comprises two pole post assemblies 300, and the cover 100 is provided with two second mounting grooves 120.

[0069] Part of the pole post assemblies 300 are respectively inserted into the second mounting grooves 120, and the battery management system module 200 is electrically connected with the two pole post assemblies 300 respectively.

[0070] Specifically, as shown in Figure 1 The second mounting groove 120 can be a sink groove or a through groove, etc., and part of the pole post assemblies 300 can be fixed by being inserted into the second mounting groove 120 in a tight fit, so that the structure is more compact. Of course, an insulating ring, an insulating ring, etc. can be arranged between the pole post assembly 300 and the cover 100 to avoid conduction between the pole post assembly 300 and the cover 100. The battery management system module 200 is electrically connected with the two pole post assemblies 300 respectively, which is convenient for power taking, and the lead wire can be arranged on the cover 100 and an insulating layer is arranged between the cover 100.

[0071] The pole post assembly 300 is connected with the cell inside the battery, and the pole post assembly 300 is used for leading in or leading out current, that is, charging the battery through the pole post assembly 300, or discharging the battery through the pole post assembly 300, and the pole post assembly 300 can be connected with the tab of the cell through the busbar.

[0072] Further, in the embodiment, the battery management system module 200 is located between the two second mounting grooves 120, and the battery management system module 200 and the two second mounting grooves 120 are located on the same side of the cover 100.

[0073] In some embodiments, the battery cover assembly provided in the embodiment of the application further comprises an explosion-proof valve 400 and a spray valve detection piece 500, and the explosion-proof valve 400 and the spray valve detection piece 500 are arranged on the cover 100.

[0074] The spray valve detection piece 500 at least partially covers the explosion-proof valve 400, the spray valve detection piece 500 is electrically connected with the battery management system module 200, and is used for detecting the working state of the explosion-proof valve 400.

[0075] Specifically, as shown in Figure 1As shown, the explosion-proof valve 400 is used to open when the internal pressure of the battery exceeds the limit to release pressure, that is, the explosion-proof valve 400 is normally closed, and only opens to release pressure when the internal pressure of the battery exceeds the limit. The cover body 100 is provided with a through hole, and the explosion-proof valve 400 is arranged at the through hole. The explosion-proof valve 400 can be connected to the cover body 100 by welding, clamping, bonding or the like. The spray valve detection piece 500 is used to detect the working state of the explosion-proof valve 400, which can be a pressure sensor, a displacement sensor or the like. When the spray valve detection piece 500 is partially on the explosion-proof valve 400, when the explosion-proof valve 400 acts, the spray valve detection piece 500 changes, thereby feeding back the condition to the battery management system module 200, and playing a warning role.

[0076] Optionally, in the present embodiment, the battery cover assembly provided in the present application further comprises a liquid injection cap 600, and the cover body 100 is provided with a liquid injection port 130. The liquid injection cap 600 is plugged at the liquid injection port 130.

[0077] Specifically, as shown in the drawings, Figure 1 The cover body 100 is provided with a liquid injection port 130, so as to add electrolyte into the battery. When the electrolyte is added, the liquid injection cap 600 is plugged at the liquid injection port 130 to ensure the sealing. The size, type and the like of the liquid injection cap 600 can be determined according to the liquid injection port 130.

[0078] Of course, the liquid injection port 130 can also be arranged on the shell. The type and position of the liquid injection port 130 and the liquid injection cap 600 can be determined according to actual needs, which are not limited in the present embodiment.

[0079] In some embodiments, the battery management system module 200 comprises a micro control unit 210, a detection unit 220 and a communication unit 230. The micro control unit 210 is provided with a storage area 211.

[0080] The detection unit 220 is used to detect the battery and store the detection data in the storage area 211. The communication unit 230 transmits the detection data.

[0081] Specifically, as shown in the drawings, Figure 2As shown, the micro control unit 210 (full name Microcontroller Unit, abbreviated as MCU) is also called single-chip microcomputer or single-chip microcomputer, which is used to control the detection unit 220 and the communication unit 230, and has a separate partitioned Flash memory inside, which stores battery factory data and detection data, facilitating reading and using at different stages. The micro control unit 210 can also control the communication unit 230 to output the detection data to the outside, so as to more clearly understand the use of the battery, and also facilitate the screening of the battery in the secondary use. The specific model of the micro control unit 210, the detection unit 220 and the communication unit 230 can be determined according to actual needs, which are not specifically limited in the embodiment.

[0082] Further, in the embodiment, the detection unit 220 includes at least one of a battery voltage detection unit 221 and a shell voltage detection unit 222. The battery voltage detection unit 221 is used to detect the voltage between the positive electrode and the negative electrode of the battery, and the shell voltage detection unit 222 is used to detect the voltage between the shell and the negative electrode of the battery.

[0083] Specifically, as shown in Figure 2 , the battery voltage detection unit 221 can be connected with the positive electrode and the negative electrode of the battery respectively, so as to monitor the voltage change between the positive electrode and the negative electrode in real time. Moreover, the shell voltage detection unit 222 can be connected with the shell and the negative electrode of the battery respectively, so as to monitor the voltage change between the shell and the negative electrode in real time, and can identify the poor shell pressure condition to prevent the cell corrosion and abnormal charging condition in the first time.

[0084] Further, in the embodiment, the detection unit 220 further includes a temperature detection unit 223, and the temperature detection unit 223 is used to detect the temperature of the shell.

[0085] Specifically, as shown in Figure 2 , the temperature detection unit 223 can detect the battery temperature through the temperature sensor integrated on the battery management system module 200, or the temperature sensor attached to the required detection position of the battery shell. In this way, the temperature change during the use of the battery can be monitored in real time. The specific model of the temperature detection unit 223 can be determined according to actual needs, which is not specifically limited in the embodiment.

[0086] Further, in the embodiment, the cover 100 is provided with an explosion-proof valve 400, and the detection unit 220 further includes a spray valve detection unit 224, and the spray valve detection unit 224 is used to detect the working state of the explosion-proof valve 400.

[0087] Specifically, as shown in Figure 1 , Figure 2As shown, the explosion-proof valve 400 is arranged on the shell 100 or the shell of the battery, and the spray valve detection unit 224 can determine whether the explosion-proof valve 400 is kept closed or in an open state through the pressure sensor partially covering the explosion-proof valve 400. The specific model of the spray valve detection unit 224 and the like can be determined according to actual needs, and is not specifically limited in the embodiment.

[0088] Further, in the embodiment, the communication unit 230 includes at least one of a wired communication unit 231 and a wireless communication unit 232, and the wired communication unit 231 and the wireless communication unit 232 are used to transmit the detection data.

[0089] The battery management system module 200 is further provided with a data communication interface 201, and the data communication interface 201 is electrically connected with the wired communication unit 231.

[0090] Specifically, as shown, Figure 2 the wired communication unit 231 can output the detection data by using the data communication interface 201 integrated on the battery management system module 200, and the data communication interface 201 can be a pin or the like. The wireless communication unit 232 can output the detection data by using a wireless transceiver integrated on the battery management system module 200. The specific type of the wired communication unit 231 and the wireless communication unit 232 and the like can be determined according to actual needs, and is not specifically limited in the embodiment.

[0091] In a second aspect, the embodiment of the application further provides a battery including a battery cell, a shell, and the battery cover assembly provided in any of the above embodiments. The battery cell is arranged in the shell, and the cover body 100 of the battery cover assembly is arranged on the shell.

[0092] The structure of the battery cover assembly is described in detail in the above embodiments, and will not be repeated here.

[0093] Specifically, the battery cell can include a pole core, a tab and the like, and the shell has a receiving cavity for accommodating the pole core, the tab and the like. One side of the shell is provided with a mounting port, and the mounting port is in communication with the receiving cavity. The battery cell is loaded into the receiving cavity from the mounting port. The pole post assembly 300 on the battery cover assembly can be connected with the tab through a bus bar, and the battery management system module 200 is connected with the two pole post assemblies 300 respectively. The cover body 100 is arranged at the mounting port and is welded and packaged, so as to complete the assembly of the battery monomer.

[0094] It can be understood that the battery provided by the embodiments of the present application is configured to include a battery cover assembly, including a cover body 100 and a battery management system module 200. The battery management system module 200 is arranged on the cover body 100 and electrically connected with the battery. On the one hand, the battery management system module 200 detects the voltage, temperature and other parameters of the battery and outputs the detection data. On the other hand, the battery is used for power supply. Thus, the centralized detection by the battery management system module 200 integrated on the battery cover is realized, and the detection data is obtained, avoiding or reducing the situation of low reliability of battery monitoring caused by too many wirings, and the integration is higher.

[0095] In a third aspect, the embodiments of the present application also provide a battery pack, including a battery pack body and at least one battery provided by any of the above embodiments arranged on the battery pack body.

[0096] Exemplarily, a plurality of the above-mentioned batteries can be arranged on the battery pack body. Of course, the battery pack body can also include a thermal management module, a controller and the like to ensure the normal operation of the battery, and the specific components can be determined according to actual needs.

[0097] It can be understood that the battery pack provided by the embodiments of the present application is configured to include a battery, and the battery includes a battery cover assembly, including a cover body 100 and a battery management system module 200. The battery management system module 200 is arranged on the cover body 100 and electrically connected with the battery. On the one hand, the battery management system module 200 detects the voltage, temperature and other parameters of the battery and outputs the detection data. On the other hand, the battery is used for power supply. Thus, the centralized detection by the battery management system module 200 integrated on the battery cover is realized, and the detection data is obtained, avoiding or reducing the situation of low reliability of battery monitoring caused by too many wirings, and the integration is higher.

[0098] In a fourth aspect, the embodiments of the present application also provide a power consumption device, including a device body, and the device body is provided with a battery or a battery pack provided by any of the above embodiments. The power consumption device can include a new energy vehicle, an energy storage device and the like.

[0099] It can be understood that the vehicle provided by the embodiments of the present application is configured to include the above-mentioned battery or the battery pack with the battery. The battery includes a cover assembly, including a cover body 100 and a battery management system module 200. The battery management system module 200 is arranged on the cover body 100 and electrically connected with the battery. On the one hand, the battery management system module 200 detects the voltage, temperature and other parameters of the battery and outputs the detection data. On the other hand, the battery is used for power supply. Thus, the centralized detection by the battery management system module 200 integrated on the battery cover is realized, and the detection data is obtained, avoiding or reducing the situation of low reliability of battery monitoring caused by too many wirings, and the integration is higher.

[0100] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0101] It is to be understood that the application is not limited to the precise construction hereinafter described and as shown in the attached drawings, and that various changes in form and detail can be made therein without departing from the scope thereof. The scope of the application should only be limited by the appended claims.

Claims

1. A battery cover assembly, comprising: The application relates to a battery management system module and a battery management system. The battery management system module comprises a cover (100) provided with a first mounting groove (110); a battery management system module (200) partially inserted into the first mounting groove (110), a first insulator (111) arranged between the first mounting groove (110) and the battery management system module (200), the battery management system module (200) being electrically connected with a battery, and the battery management system module (200) being used for detecting the battery and outputting detection data. The cover (100) is provided with two second mounting grooves (120); and two pole column assemblies (300) are partially inserted into the second mounting grooves (120) respectively, and the battery management system module (200) is electrically connected with the two pole column assemblies (300) respectively.

2. The battery cover assembly of claim 1, wherein, The battery management system module (200) is located between the two second mounting grooves (120), and the battery management system module (200) and the two second mounting grooves (120) are located on the same side of the cover (100). The cover (100) is further provided with an explosion-proof valve (400) and a spray valve detection piece (500); the spray valve detection piece (500) at least partially covers the explosion-proof valve (400), the spray valve detection piece (500) is electrically connected with the battery management system module (200) and is used for detecting the working state of the explosion-proof valve (400).

3. The battery cover assembly of claim 2, wherein, The cover (100) is further provided with a liquid injection cap (600), and the cover (100) is provided with a liquid injection opening (130), and the liquid injection cap (600) is sealed at the liquid injection opening (130).

4. The battery cover assembly of claim 1, wherein, The battery management system module (200) comprises a micro control unit (210), a detection unit (220) and a communication unit (230), and the micro control unit (210) is internally provided with a storage area (211). The detection unit (220) is used for detecting the battery and storing the detection data in the storage area (211), and the communication unit (230) transmits the detection data.

5. The battery cover assembly of claim 1, wherein, The detection unit (220) comprises at least one of a battery voltage detection unit (221) and a shell voltage detection unit (222), the battery voltage detection unit (221) is used for detecting the voltage between the positive electrode and the negative electrode of the battery, and the shell voltage detection unit (222) is used for detecting the voltage between the shell of the battery and the negative electrode.

6. The battery cover assembly of any one of claims 1 to 5, wherein, The detection unit (220) further comprises a temperature detection unit (223) used for detecting the temperature of the shell. The cover (100) is provided with the explosion-proof valve (400), and the detection unit (220) further comprises a spray valve detection unit (224) used for detecting the working state of the explosion-proof valve (400).

7. The battery cover assembly of claim 6, wherein, ​ 8. The battery cover assembly of claim 7, wherein, ​ 9. The battery cover assembly of claim 6, wherein, ​ 10. A battery, characterized by The battery cover assembly as claimed in any one of claims 1 to 9, wherein the battery cover assembly comprises a battery cell, a housing, and the battery cover assembly, the battery cell is arranged in the housing, and the cover body (100) of the battery cover assembly is arranged on the housing.

11. A battery pack, characterized by, The battery pack as claimed in claim 10, wherein the battery pack comprises a battery pack body and at least one battery as claimed in claim 10 arranged on the battery pack body.

12. An electrical device, characterized by The device as claimed in claim 10, wherein the device comprises a device body, and the battery as claimed in claim 10 is arranged on the device body. Alternatively, the device as claimed in claim 11, wherein the device comprises a device body, and the battery pack as claimed in claim 11 is arranged on the device body.

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