Maintainable battery pack and maintenance device, battery maintenance method, apparatus, and medium

Abstract

The application discloses a maintainable battery pack and a maintenance device, a battery maintenance method, a device and a medium. The maintainable battery pack and the maintenance device comprise: a maintainable battery pack, which comprises a shell, an internal battery arranged in the shell and a battery management system. The internal battery comprises a plurality of single cell cores. Each positive electrode of each section draws out a single cell core detection line. The shell is provided with a maintenance port. The maintenance port is provided with a total connection electrode and a plurality of single connection electrodes. The total connection electrode is connected with a total negative electrode of the internal battery. The plurality of single connection electrodes are connected with the plurality of single cell core detection lines. The maintenance device is connected with the maintenance port through a connecting device. The maintenance device is used for detecting management data of the battery management system and single voltage signals of the plurality of single cell cores. The internal battery is maintained according to the management data and the plurality of single voltage signals. The application does not need to disassemble the battery pack, can realize maintenance convenience, improves safety and the service life of the battery pack through active intervention.

Description

Technical Field

[0001] This application relates to the field of lithium-ion battery technology, and in particular to maintainable battery packs and maintenance equipment, battery maintenance methods, devices and media. Background Technology

[0002] Currently, lithium-ion batteries are widely used in electric vehicles, energy storage systems, and consumer electronics, but their safety and lifespan remain persistent pain points in the industry. Although existing battery management systems (BMS) can monitor battery parameters such as voltage, current, and temperature to some extent and provide early warnings of abnormal conditions, their functionality is still limited to a "passive sensing" level—meaning they can "see the problem but cannot actively intervene." Once a cell experiences potential faults such as micro-short circuits, lithium plating, or abnormal increases in internal resistance, traditional BMS lacks effective maintenance methods and often can only wait for the fault to worsen to the point of thermal runaway or even fire and explosion, leading to frequent safety hazards. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a maintainable battery pack and maintenance equipment that allows for comprehensive inspection and maintenance without disassembling the battery pack, thus achieving convenient and widespread maintenance, enabling proactive intervention, improving safety, and extending the battery pack's lifespan.

[0004] This application also provides a battery maintenance method, a control device for performing the battery maintenance method, and a computer-readable storage medium.

[0005] A maintainable battery pack and maintenance device according to a first aspect embodiment of this application include: A maintainable battery pack includes a housing, an internal battery and a battery management system disposed within the housing, the internal battery including multiple interconnected individual cells, each individual cell having a cell detection line led out from its positive terminal, the housing having a maintenance port having a main connection electrode and multiple individual cell connection electrodes, the main connection electrode being connected to the main negative terminal of the internal battery, and the multiple individual cell connection electrodes being connected one-to-one with the multiple individual cell detection lines; The maintenance device is connected to the maintenance port via a connection device. The maintenance device is used to detect the management data of the battery management system and the individual cell voltage signals of multiple individual cells, and to perform maintenance operations on the internal battery based on the management data and the multiple individual cell voltage signals.

[0006] The maintainable battery pack and maintenance equipment according to the embodiments of this application have at least the following beneficial effects: By extracting the individual cell voltage signal to an external maintenance port, maintenance personnel can quickly obtain key parameters such as voltage, temperature, and internal resistance of each individual cell without damaging the battery pack's sealed structure, reducing the testing threshold and operational risks. The maintainable battery pack of this application, combined with maintenance equipment, enables convenient and widespread maintenance, allowing for proactive intervention in the battery pack, thereby improving safety and extending its lifespan.

[0007] According to some embodiments of this application, a plurality of the individual cell connection electrodes are connected to a plurality of individual cell detection lines in a one-to-one correspondence according to the physical order of the individual cells.

[0008] According to some embodiments of this application, the housing has a groove, and the maintenance port is embedded in the groove.

[0009] According to some embodiments of this application, the connection device includes a main connection line and multiple individual detection connection lines. The maintenance device has a main detection port and multiple individual detection ports. One end of the main connection line is connected to the main connection electrode, and the other end is connected to the main detection port. One end of each of the multiple individual detection connection lines is connected to a multiple individual connection electrode, and the other end is connected to a multiple individual detection port.

[0010] The battery maintenance method according to a second aspect of this application, applied to the maintainable battery pack and maintenance equipment described in the first aspect of the present application, includes: Acquire the management data of the battery management system and the individual cell voltage signals of the multiple individual battery cells; Maintenance operations are performed on the internal battery based on the management data and the voltage signals of the multiple individual cells.

[0011] The battery maintenance method according to the embodiments of this application has at least the following beneficial effects: By extracting the individual cell voltage signal to an external maintenance port, maintenance personnel can quickly obtain key parameters such as voltage, temperature, and internal resistance of each individual cell without damaging the battery pack's sealed structure, reducing the testing threshold and operational risks. The maintainable battery pack of this application, combined with maintenance equipment, enables convenient and widespread maintenance, allowing for proactive intervention in the battery pack, thereby improving safety and extending its lifespan.

[0012] According to some embodiments of this application, the maintenance operations include high-precision consistency analysis, internal resistance detection, dynamic equalization maintenance, intelligent estimation of remaining service life, and automatic identification and marking of faulty cells or abnormal battery packs.

[0013] According to some embodiments of this application, after performing maintenance operations on the internal battery based on the management data and the plurality of individual cell voltage signals, the method further includes: Maintain maintenance records; Processing recommendations are generated based on the maintenance records.

[0014] According to some embodiments of this application, after generating processing recommendations based on the maintenance records, the method further includes: An electronic report is generated based on the management data, the multiple individual voltage signals, the maintenance records, and the processing recommendations; The electronic report is uploaded to the cloud management platform.

[0015] A control device according to a third aspect embodiment of this application includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the battery maintenance method as described in the second aspect embodiment above. Since the control device employs all the technical solutions of the battery maintenance method of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0016] A computer-readable storage medium according to a fourth aspect embodiment of this application stores computer-executable instructions for performing the battery maintenance method as described in the first aspect embodiment above. Since the computer-readable storage medium employs all the technical solutions of the battery maintenance method of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0017] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a maintainable battery pack according to an embodiment of this application; Figure 2 This is a schematic diagram showing the connection between the maintenance port and the internal battery according to an embodiment of this application; Figure 3 This is a display interface diagram of a display device according to an embodiment of this application; Figure 4 This is a flowchart of a battery maintenance method according to an embodiment of this application.

[0019] Figure label: Housing 100, maintenance port 101; 200 per cell. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] In the description of this application, the use of terms such as "first," "second," etc., is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0022] In the description of this application, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] In the description of this application, it should be noted that, unless otherwise explicitly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0024] Currently, lithium-ion batteries are widely used in electric vehicles, energy storage systems, and consumer electronics, but their safety and lifespan remain persistent pain points in the industry. Although existing battery management systems (BMS) can monitor battery parameters such as voltage, current, and temperature to some extent and provide early warnings of abnormal conditions, their functionality is still limited to a "passive sensing" level—meaning they can "see the problem but cannot actively intervene." Once a cell experiences potential faults such as micro-short circuits, lithium plating, or abnormal increases in internal resistance, traditional BMS lacks effective maintenance methods and often can only wait for the fault to worsen to the point of thermal runaway or even fire and explosion, leading to frequent safety hazards.

[0025] This is one of the key reasons for the frequent fires involving electric motorcycles. During daily use and charging, users often fail to notice changes in the internal state of the lithium battery. Existing battery management systems (BMS) only offer basic overvoltage, overcurrent, and temperature protection, and cannot proactively intervene or repair long-term, accumulated inconsistencies between cells (such as differences in capacity decay, uneven internal resistance growth, and potential micro-short circuits). As usage time increases, these subtle differences amplify, leading to overcharging, over-discharging, or localized overheating of individual cells, potentially causing thermal runaway or even fire. This gradual degradation process, from quantitative to qualitative change, is precisely the core shortcoming that current traditional BMS systems cannot address.

[0026] This application proposes a maintainable battery pack and maintenance equipment that can be applied to electric motorcycles, energy storage systems, new energy vehicles, etc. It allows for comprehensive testing and maintenance without disassembling the battery pack, making maintenance convenient and widespread, enabling proactive intervention, improving safety and extending the battery pack's lifespan.

[0027] The following will combine Figures 1 to 4 The maintainable battery pack and maintenance equipment of the present application are clearly and completely described. Obviously, the embodiments described below are some embodiments of the present application, not all embodiments.

[0028] A maintainable battery pack and maintenance device according to a first aspect embodiment of the present application includes a maintainable battery pack and maintenance device.

[0029] A maintainable battery pack includes a housing 100, an internal battery and a battery management system disposed within the housing 100. The internal battery includes multiple interconnected individual cells 200. A detection line is led out from the positive terminal of each individual cell 200. The housing 100 has a maintenance port 101. The maintenance port 101 has a main connection electrode and multiple individual cell connection electrodes. The main connection electrode is connected to the main negative terminal of the internal battery. The multiple individual cell connection electrodes are connected one-to-one with the multiple individual cell 200 detection lines. The maintenance equipment is connected to the maintenance port 101 via a connection device. The maintenance equipment is used to detect the management data of the battery management system and the individual cell voltage signals of the multiple individual cells 200, and to perform maintenance operations on the internal battery based on the management data and the multiple individual cell voltage signals.

[0030] refer to Figure 1 , Figure 1This is a schematic diagram of a maintainable battery pack according to an embodiment of this application. Without altering the original internal structure of the battery pack, this embodiment utilizes a self-developed, highly integrated battery management system (BMS) to additionally extend a set of individual cell 200 detection lines into its circuit design. These lines are connected to the external casing 100 via a standardized maintenance port 101. This maintenance port 101 corresponds one-to-one with the voltage signals of each internal cell, ensuring that external maintenance equipment can directly and accurately access the real-time status of each individual cell 200 without disassembling the maintainable battery pack casing 100 to complete a comprehensive test. This design significantly lowers the maintenance threshold, enabling ordinary after-sales service stores, repair outlets, and even authorized service points to quickly conduct professional-grade battery testing. After using the maintainable battery pack of this embodiment, ordinary after-sales service stores or service outlets only need to connect external maintenance equipment to complete professional-grade battery health diagnostics, transforming battery maintenance from a "professional institution exclusive" service to a "widely accessible" routine service, significantly improving the accessibility and feasibility of maintenance.

[0031] refer to Figure 2 , Figure 2 This is a schematic diagram of the connection between the maintenance port 101 and the internal battery according to an embodiment of this application. The internal battery includes multiple interconnected individual cells 200. Each individual cell 200 has a detection line led out from its positive terminal. The maintenance port 101 has a total connection electrode and multiple individual cell connection electrodes. The total connection electrode is connected to the total negative terminal of the internal battery, and the multiple individual cell connection electrodes are connected one-to-one with the multiple individual cell 200 detection lines.

[0032] When the maintenance port 101 is connected to the maintenance device of this embodiment, the maintenance device can read management data (BMS data) in real time and determine the individual cell voltage, temperature, and internal resistance of each cell 200 through individual cell voltage signals, and perform multiple maintenance operations based on this. Maintenance operations include, but are not limited to, high-precision consistency analysis, internal resistance detection, dynamic balancing maintenance, intelligent estimation of remaining service life, and automatic identification and marking of faulty cells or abnormal battery packs. The system can identify early fault characteristics such as micro-short circuits, consistency degradation, and lithium plating tendency, and supports maintenance methods such as active balancing and thermal intervention, effectively blocking thermal runaway chain reactions and significantly reducing the risk of fire.

[0033] The maintainable battery pack and maintenance equipment in this application embodiment work together deeply through hardware interfaces, communication protocols, and functional logic to construct a closed loop of "perception-diagnosis-intervention-decision". The BMS acts as the intelligent hub, responsible for data collection and status assessment; the external maintenance equipment acts as the execution terminal, realizing non-destructive, efficient, and accurate on-site maintenance. This application embodiment not only significantly improves the safety and reliability of lithium battery systems and extends their service life by more than 30%, but also provides a feasible battery health management infrastructure for large-scale operation scenarios (such as shared electric bicycles, battery swapping networks, and urban delivery fleets), demonstrating outstanding technological advancement and industrialization value.

[0034] According to the maintainable battery pack and maintenance equipment of this application embodiment, by leading the individual cell voltage signal of each cell 200 to the external maintenance port 101, maintenance personnel can quickly obtain key parameters such as voltage, temperature, and internal resistance of each individual cell 200 without damaging the sealed structure of the battery pack, thus reducing the testing threshold and operational risks. The maintainable battery pack of this application embodiment, combined with the maintenance equipment, can realize convenient and widespread maintenance, enabling proactive intervention in the battery pack, thereby improving safety and extending the service life of the battery pack.

[0035] In some embodiments of this application, reference is made to Figure 2 , Figure 2 This is a schematic diagram of the connection between the maintenance port 101 and the internal battery according to an embodiment of this application. Multiple individual cell connection electrodes are connected to multiple individual cell 200 detection lines in a one-to-one correspondence according to the physical order of the individual cells 200. This layout not only ensures the accuracy and consistency of signal acquisition but also facilitates fault location and thermal runaway risk prediction by the maintenance equipment based on the physical topology. Through the orderly correspondence between the individual cell 200 detection lines and the individual cell connection electrodes, a clear cell state space distribution map can be constructed, providing accurate input for dynamic balancing strategies. This design also facilitates the deployment of automated diagnostic algorithms, improving anomaly identification efficiency and maintenance response speed, and further enhancing the intelligent level of battery system lifecycle management. Based on the signal mapping relationship of the physical order, the maintenance equipment can combine the spatial position of the cells within the battery pack to analyze their voltage gradient changes and temperature difference distribution trends, accurately identifying potential thermal runaway risk units.

[0036] In some embodiments of this application, a groove is provided on the housing 100, and the maintenance port 101 is embedded in the groove. The connector of the exposed maintenance port 101 protrudes from the battery pack housing. Under vibration and impact conditions (such as when an electric vehicle is driving on a bumpy road or during the transportation of the energy storage battery pack), stress concentration can easily cause the connector to loosen and the solder joints to fall off, affecting the long-term reliability of the maintenance port 101. The concealed maintenance port 101 is embedded inside the housing 100, with no protruding external structure. Vibration and impact stress are dispersed by the housing 100, and the connector is more securely fixed, ensuring stable connection to maintenance equipment even after long-term use. At the same time, the concealed maintenance port 101 improves the product's appearance and optimizes the user experience.

[0037] Furthermore, sealing rings or waterproof baffles can be installed around the groove to further enhance dustproof and waterproof performance, meeting IP67 and higher protection rating requirements, and adapting to complex outdoor environments. The concealed structure also reduces the risk of short circuits caused by foreign objects, improving safety during use.

[0038] In some embodiments of this application, the connection device includes a main connection line and multiple individual detection connection lines. The maintenance device has a main detection port and multiple individual detection ports. One end of the main connection line is connected to the main connection electrode, and the other end is connected to the main detection port. One end of each of the multiple individual detection connection lines is connected to a multiple individual connection electrode, and the other end is connected to a multiple individual detection port.

[0039] This application physically isolates the overall management data and the individual cell voltage signal of each cell (200) through a main connection line and multiple individual cell detection connection lines. This completely eliminates signal interference, significantly improves the accuracy of individual cell voltage detection, ensures the safety of the maintenance system, blocks fault propagation paths, achieves functional independence, and enhances maintenance flexibility and reliability.

[0040] In some embodiments of this application, reference is made to Figure 3 , Figure 3 This is a display interface diagram of a display device according to an embodiment of this application. The maintenance equipment is also equipped with a display device for displaying management data from the battery management system, as well as key parameters such as voltage, temperature, and internal resistance of each individual battery cell 200. The status of the internal batteries can be seen intuitively. For maintenance personnel, this significantly improves maintenance efficiency and quality, moving from "blind repair" to "precise repair," allowing for rapid identification of the root cause of faults, avoiding ineffective operations, lowering the maintenance threshold, and reducing human error. For battery and equipment manufacturers, this facilitates optimized product design and enhances market competitiveness.

[0041] It should be noted that, Figure 3 The data shown in the document should not be construed as limiting this application and may be adjusted according to the actual situation.

[0042] The battery maintenance method according to a second aspect of this application, applied to the maintainable battery pack and maintenance equipment of the first aspect embodiment described above, includes: Acquire management data from the battery management system and individual cell voltage signals from multiple individual cells 200; Maintenance operations are performed on the internal batteries based on management data and multiple individual cell voltage signals.

[0043] Since the battery maintenance method adopts all the technical solutions of the maintainable battery pack and maintenance equipment in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments, and will not be repeated here.

[0044] According to the battery maintenance method of this application embodiment, by leading the individual cell voltage signal of the battery cell 200 to the external maintenance port 101, maintenance personnel can quickly obtain key parameters such as voltage, temperature, and internal resistance of each individual cell 200 without damaging the sealed structure of the battery pack, thus reducing the detection threshold and operational risks. The maintainable battery pack of this application embodiment, combined with maintenance equipment, can realize convenient and widespread maintenance, enabling proactive intervention in the battery pack, thereby improving safety and extending the service life of the battery pack.

[0045] In some embodiments of this application, maintenance operations include high-precision consistency analysis, internal resistance detection, dynamic balancing maintenance, intelligent estimation of remaining lifespan, and automatic identification and marking of faulty cells or abnormal battery packs. High-precision consistency analysis can accurately identify individual cells whose voltage or internal resistance deviates from the normal range by 200%. Internal resistance detection, combined with a temperature compensation algorithm, improves the accuracy of parameter measurements. Dynamic balancing maintenance actively adjusts the voltage differences between individual cells during charging, extending the battery pack's cycle life. Based on high-precision data-driven remaining lifespan estimation and an aging cell screening mechanism, it can scientifically guide the secondary use or early replacement of batteries, extending the overall lifespan by more than 30% and reducing resource waste. After faulty cells or abnormal battery packs are automatically identified and marked, the system generates visual maintenance suggestions to guide on-site personnel in rapid handling, comprehensively improving the level of intelligent operation and maintenance. The automation and intelligence of the above maintenance operations significantly reduce the reliance on the professional skills of maintenance personnel, enabling non-technical personnel to efficiently complete routine testing tasks. Through real-time data acquisition and analysis, the system can provide early warnings of potential risks, preventing the escalation of faults and reducing downtime and maintenance costs.

[0046] It should be noted that the specific principles and processes of the above maintenance operations are existing technologies known to those skilled in the art, and will not be elaborated here.

[0047] In some embodiments of this application, after performing maintenance operations on the internal battery based on management data and multiple individual cell voltage signals, the method further includes: Maintain maintenance records; Processing recommendations are generated based on maintenance records.

[0048] In some embodiments, for maintainable battery packs that pose safety hazards or have severely degraded performance, the system can generate a clear recommendation for factory replacement.

[0049] It should be noted that this application may offer further suggestions for specific maintenance operations and records, which will not be elaborated upon here.

[0050] In some embodiments of this application, after generating processing recommendations based on maintenance records, the method further includes: Electronic reports are generated based on management data, multiple individual unit voltage signals, maintenance records, and handling recommendations. Upload the electronic report to the cloud management platform.

[0051] All test results, maintenance records, and handling suggestions can be generated into electronic reports and uploaded to the cloud management platform, enabling traceability of the battery's entire life cycle status, quantifiable decision-making, and closed-loop service, thus achieving transparency, standardization, and traceability in the maintenance process.

[0052] Additionally, one embodiment of this application provides a control device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor and the memory can be connected via a bus or other means.

[0053] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0054] The non-transitory software program and instructions required to implement the battery maintenance method of the above embodiments are stored in memory. When executed by the processor, the battery maintenance method of the above embodiments is executed.

[0055] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0056] Furthermore, one embodiment of this application provides a computer-readable storage medium storing computer-executable instructions that are executed by a processor or controller, such as the processor of the aforementioned control device, causing the processor to perform the battery maintenance method described in the above embodiment.

[0057] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0058] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A maintainable battery pack and maintenance equipment, characterized in that, include: A maintainable battery pack includes a housing, an internal battery and a battery management system disposed within the housing, the internal battery including multiple interconnected individual cells, each individual cell having a cell detection line led out from its positive terminal, the housing having a maintenance port having a main connection electrode and multiple individual cell connection electrodes, the main connection electrode being connected to the main negative terminal of the internal battery, and the multiple individual cell connection electrodes being connected one-to-one with the multiple individual cell detection lines; The maintenance device is connected to the maintenance port via a connection device. The maintenance device is used to detect the management data of the battery management system and the individual cell voltage signals of multiple individual cells, and to perform maintenance operations on the internal battery based on the management data and the multiple individual cell voltage signals.

2. The maintainable battery pack and maintenance equipment according to claim 1, characterized in that, Multiple individual cell connection electrodes are connected to multiple individual cell detection lines in a one-to-one correspondence according to the physical order of the individual cells.

3. The maintainable battery pack and maintenance equipment according to claim 1, characterized in that, The housing has a groove, and the maintenance port is embedded in the groove.

4. The maintainable battery pack and maintenance equipment according to claim 1, characterized in that, The connection device includes a main connection line and multiple individual detection connection lines. The maintenance equipment has a main detection port and multiple individual detection ports. One end of the main connection line is connected to the main connection electrode, and the other end is connected to the main detection port. One end of each of the multiple individual detection connection lines is connected to a corresponding individual connection electrode, and the other end is connected to a corresponding individual detection port.

5. A battery maintenance method, characterized in that, The battery maintenance method, applied to the maintainable battery pack and maintenance equipment as described in any one of claims 1 to 4, comprises: Acquire the management data of the battery management system and the individual cell voltage signals of the multiple individual battery cells; Maintenance operations are performed on the internal battery based on the management data and the voltage signals of the multiple individual cells.

6. The battery maintenance method according to claim 5, characterized in that, The maintenance operations include high-precision consistency analysis, internal resistance detection, dynamic equalization maintenance, intelligent estimation of remaining service life, and automatic identification and marking of faulty cells or abnormal battery packs.

7. The battery maintenance method according to claim 5, characterized in that, After performing maintenance operations on the internal battery based on the management data and the multiple individual cell voltage signals, the method further includes: Maintain maintenance records; Processing recommendations are generated based on the maintenance records.

8. The battery maintenance method according to claim 7, characterized in that, After generating processing recommendations based on the maintenance records, the method further includes: An electronic report is generated based on the management data, the multiple individual voltage signals, the maintenance records, and the processing recommendations; The electronic report is uploaded to the cloud management platform.

9. A control device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the battery maintenance method as described in any one of claims 5 to 8.

10. A computer-readable storage medium storing computer-executable instructions, characterized in that, The computer-executable instructions are used to perform the battery maintenance method as described in any one of claims 5 to 8.

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