Methods, systems, devices, and storage media for extending lithium sub-cell life

Abstract

The application discloses a method, system, device and storage medium for prolonging the service life of a lithium sub-battery, wherein the hardware combination of the lithium sub-battery and the super capacitor can prolong the service life of the lithium sub-battery when the lithium sub-battery is loaded on a terminal device in combination with the corresponding lithium sub-battery use condition monitoring method; the lithium sub-battery use condition monitoring method is a backoff algorithm which can prolong the service life of the lithium sub-battery by monitoring the state of the battery and realizing effective feedback; through the method, the maintenance personnel can be reminded to replace the low-power battery more accurately, so that the terminal device can be maintained in time when the lithium sub-battery cannot work normally.

Description

Technical Field

[0001] This invention relates to the field of battery management technology, and in particular to methods, systems, devices and storage media for extending the lifespan of lithium-ion batteries. Background Technology

[0002] Lithium-thionyl chloride (LTC) batteries are widely used due to their advantages of high capacity, low discharge current, and low self-discharge rate. Existing low-power, intermittently operating terminals typically use LTC batteries as their power supply. However, most current terminal devices lack discharge management for LTC batteries. Especially when encountering high-current peripheral sensors, if the LTC battery is low, the voltage can easily be pulled down by the continuous high current when the sensor is powered, causing the device to repeatedly power off and on, and failing to fully utilize the remaining power of the LTC battery. Therefore, how to extend the service life of LTC batteries and reliably monitor their usage status is a research topic of great practical significance. Summary of the Invention

[0003] In view of this, the purpose of this invention is to provide a method, system, apparatus and storage medium for extending the lifespan of lithium-ion batteries that is reliable, responsive and capable of providing highly referential feedback.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this invention is as follows:

[0005] A method for monitoring the usage status of a lithium-ion battery, wherein the lithium-ion battery is mounted on a terminal device and provides power to the terminal device, a capacitor unit is provided on the circuit connecting the lithium-ion battery to the terminal device, and the lithium-ion battery also charges the capacitor unit when powering the terminal device, the terminal device includes an MCU control unit, the MCU control unit is connected to an external sensor and controls the power supply to the external sensor by the MCU control unit, the external sensor samples data of its deployment environment according to preset sampling parameters, and the MCU control unit controls the terminal device to be in a powered-on state and the power supply to the external sensor to be connected at the sampling time node of the external sensor, the monitoring method includes:

[0006] S01. The MCU control unit records the number of times the terminal device restarts abnormally according to preset conditions and generates abnormal restart data;

[0007] S02. Obtain abnormal restart data and judge it according to preset conditions. If the number of abnormal restarts recorded in the abnormal restart data is greater than the preset value, proceed to S03; otherwise, jump back to S01.

[0008] S03. Determine the data sampling interval of the peripheral sensors and the number of abnormal restarts recorded by the MCU control unit according to preset conditions.

[0009] When the sampling interval is greater than the preset threshold and the number of abnormal restarts meets the preset requirements, output the first judgment result and proceed to S04.

[0010] When the sampling interval is less than the preset threshold and there is an increase in the number of abnormal restarts, the sampling interval is adjusted and then jumps back to S01;

[0011] S04. Obtain the first judgment result and output the lithium-ion battery replacement information according to the preset conditions.

[0012] As one possible implementation, further, this solution S02 includes: acquiring abnormal restart data, judging the number of abnormal restarts recorded in the abnormal restart data, and when the number of abnormal restarts recorded in the abnormal restart data is greater than M, proceeding to S03, otherwise jumping back to S01, where M is a positive integer greater than 1; preferably, M is 5.

[0013] As one possible implementation, the peripheral sensors described in this solution include gas sensors, temperature sensors, humidity sensors, and illuminance sensors. However, the peripheral sensors mentioned in this solution are not limited to the aforementioned list and may also be other sensors.

[0014] As a preferred implementation method, solution S03 preferably includes:

[0015] S031. Obtain the data sampling interval of the peripheral sensor and the number of abnormal restarts recorded by the MCU control unit, judge them, and output the judgment result;

[0016] S032. Obtain the judgment result. When the data sampling interval of the external sensor is greater than the preset threshold K and the number of abnormal restarts increases, output the first judgment result and proceed to S04.

[0017] When the sampling interval is less than the preset threshold and there is an increase in the number of abnormal restarts, the sampling interval is adjusted according to the preset conditions to increase the sampling interval, and then jumps back to S01;

[0018] When the sampling interval is less than the preset threshold and there is no new abnormal restart, maintain the current sampling interval and then jump back to S01.

[0019] As a preferred implementation method, in S032 of this solution, the sampling interval is adjusted according to the following formula:

[0020] L = a × N

[0021] Where L is the sampling interval of the peripheral sensor, N is the initial sampling interval of the peripheral sensor, and a is the number of times the sampling interval of the peripheral sensor is adjusted, which is a positive integer.

[0022] Based on the above, the present invention also provides a method for extending the service life of a lithium-thionyl chloride battery, which includes the lithium-thionyl chloride battery usage status monitoring method described above, and further includes:

[0023] S05. Transmit the lithium-ion battery replacement information to the management platform, where maintenance personnel receive the information and replace the lithium-ion battery in the terminal equipment.

[0024] As a preferred implementation method, in S04 of this solution, when outputting the lithium-thionyl chloride battery replacement information, the MCU control unit also cuts off the power supply from the lithium-thionyl chloride battery to the peripheral sensors, so that the peripheral sensors are all in a power-off state before the lithium-thionyl chloride battery is replaced.

[0025] Based on the above, the present invention also provides a system for extending the service life of lithium-ion batteries, comprising:

[0026] The terminal device comprises one or more devices, each equipped with a lithium-ion battery for powering the terminal device. Each terminal device includes a capacitor unit disposed on the circuit connecting the lithium-ion battery to the terminal device. The terminal device also includes an MCU control unit, which is connected to an external sensor and controls the power supply to the external sensor. The external sensor samples data from its deployment environment according to preset sampling parameters. At the sampling time point of the external sensor, the MCU control unit controls the terminal device to be in a power-on state and the power supply to the external sensor to be connected. The MCU control unit is also used to record the number of times the terminal device restarts abnormally according to preset conditions and generate abnormal restart data.

[0027] The data processing unit is used to acquire abnormal restart data and judge it according to preset conditions. When the number of abnormal restarts recorded in the abnormal restart data is greater than a preset value, a second judgment is made on the data sampling interval of the peripheral sensor and the number of abnormal restarts recorded according to the preset conditions. When the sampling interval is greater than a preset threshold and the number of abnormal restarts meets the preset requirements, the first judgment result is output. When the sampling interval is less than the preset threshold and there is an increase in the number of abnormal restarts, the sampling interval of the peripheral sensor is adjusted.

[0028] The communication module is used to obtain the first judgment result and output lithium-ion battery replacement information according to preset conditions;

[0029] The backend platform server, acting as a management platform, is used to obtain lithium-ion battery replacement information and forward lithium-ion battery replacement instructions.

[0030] Based on the above, the present invention also provides a terminal device, which includes...

[0031] The MCU control unit records the number of times the terminal device restarts abnormally according to preset conditions and generates abnormal restart data;

[0032] A lithium-ion battery is connected to the MCU control unit.

[0033] A current-limiting resistor is connected in series in the circuit connecting the lithium-ion battery to the MCU control unit;

[0034] A capacitor unit is connected in parallel to the circuit connecting the lithium-ion battery to the MCU control unit, and the capacitor unit includes one or more supercapacitors;

[0035] The 4G module and the boost chip are respectively connected to the MCU control unit, and the circuit of the lithium-ion battery connected to the MCU control unit also forms a branch circuit that is respectively connected to the 4G module and the boost chip;

[0036] The terminal device is used to connect to an external sensor, which is connected to a boost chip and is used to sample data from its deployment environment according to preset sampling parameters.

[0037] Based on the above, the present invention also provides a computer-readable storage medium storing at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, at least one program, code set, or instruction set is loaded and executed by a processor to implement the lithium-ion battery usage status monitoring method or the method for extending the service life of lithium-ion batteries as described above.

[0038] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0039] 1. The hardware combination of lithium-ion batteries and supercapacitors in this solution can extend the service life of lithium-ion batteries by combining them with the corresponding lithium-ion battery usage monitoring methods in this solution when the lithium-ion batteries are installed in the device terminal.

[0040] 2. The lithium-ion battery usage status monitoring method in this solution is a backoff algorithm, which can extend the service life of lithium-ion batteries by monitoring the battery status to achieve effective feedback.

[0041] 3. This solution can accurately remind maintenance personnel to replace low-power batteries, thus avoiding the problem of the terminal equipment not being able to be maintained in a timely manner when the lithium-ion battery is not working properly. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a simplified implementation flow diagram of the method for extending the service life of lithium-ion batteries according to the present invention;

[0044] Figure 2 This is a simplified schematic diagram illustrating the principle of the method of the present invention;

[0045] Figure 3 This is a schematic diagram illustrating the information interaction between the terminal device and the backend platform server in the present invention.

[0046] Figure 4 This is a schematic diagram illustrating one embodiment of a unit module of the terminal device according to the present invention.

[0047] Figure 5 This is a simplified schematic diagram of the implementation of the system of the present invention. Detailed Implementation

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the invention. Similarly, the following embodiments are only some, not all, embodiments of the present invention, and all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] like Figure 1 As shown in this embodiment, a method for extending the lifespan of a lithium-ion battery includes a lithium-ion battery usage status monitoring method. The lithium-ion battery is installed on a terminal device and provides power to the terminal device. A capacitor unit is provided on the circuit connecting the lithium-ion battery to the terminal device, and the lithium-ion battery also charges the capacitor unit when supplying power to the terminal device. The terminal device includes an MCU control unit, which is connected to an external sensor and controls the power supply to the external sensor. The external sensor samples data from its deployment environment according to preset sampling parameters. At the sampling time point of the external sensor, the MCU control unit controls the terminal device to be in a powered-on state and ensures the external sensor is powered on. The monitoring method includes:

[0050] S01. The MCU control unit records the number of times the terminal device restarts abnormally according to preset conditions and generates abnormal restart data;

[0051] S02. Obtain abnormal restart data and judge it according to preset conditions. If the number of abnormal restarts recorded in the abnormal restart data is greater than the preset value, proceed to S03; otherwise, jump back to S01.

[0052] S03. Determine the data sampling interval of the peripheral sensors and the number of abnormal restarts recorded by the MCU control unit according to preset conditions.

[0053] When the sampling interval is greater than the preset threshold and the number of abnormal restarts meets the preset requirements, the first judgment result is output and the process proceeds to S04.

[0054] When the sampling interval is less than the preset threshold and there is an increase in the number of abnormal restarts, the sampling interval is adjusted and then jumps back to S01;

[0055] S04. Obtain the first judgment result and output the lithium-ion battery replacement information according to the preset conditions.

[0056] Among them, combined Figure 2 As shown, as a possible implementation, further, this solution S02 includes: acquiring abnormal restart data, judging the number of abnormal restarts recorded in the abnormal restart data, and when the number of abnormal restarts recorded in the abnormal restart data is greater than M, proceeding to S03, otherwise jumping back to S01, where M is a positive integer greater than 1; preferably, M is 5.

[0057] In addition, this solution S03 includes:

[0058] S031. Obtain the data sampling interval of the peripheral sensor and the number of abnormal restarts recorded by the MCU control unit, judge them, and output the judgment result;

[0059] S032. Obtain the judgment result. When the data sampling interval of the external sensor is greater than the preset threshold K and the number of abnormal restarts increases, output the first judgment result and proceed to S04.

[0060] When the sampling interval is less than the preset threshold and there is an increase in the number of abnormal restarts, the sampling interval is adjusted according to the preset conditions to increase the sampling interval, and then jumps back to S01;

[0061] When the sampling interval is less than the preset threshold and there is no new abnormal restart, maintain the current sampling interval and then jump back to S01.

[0062] As a preferred implementation method, in S032 of this solution, the sampling interval is adjusted according to the following formula:

[0063] L = a × N

[0064] Where L is the sampling interval of the peripheral sensor, N is the initial sampling interval of the peripheral sensor, and a is the number of times the sampling interval of the peripheral sensor is adjusted, which is a positive integer.

[0065] In addition, combined Figure 3As shown, one method for extending the lifespan of a lithium-ion battery according to this embodiment further includes:

[0066] S05. Transmit the lithium-ion battery replacement information to the management platform, where maintenance personnel receive the information and replace the lithium-ion battery in the terminal equipment.

[0067] Since lithium-ion batteries are difficult to stably output power when they cannot provide power, in order to avoid damage from excessive power depletion, in this solution S04, when outputting lithium-ion battery replacement information, the MCU control unit also cuts off the power supply of the lithium-ion battery to the peripheral sensors, so that the peripheral sensors are all in a power-off state before the lithium-ion battery is replaced.

[0068] Combination Figure 4 As shown, based on the above, this embodiment also provides a terminal device, which includes...

[0069] The MCU control unit records the number of times the terminal device restarts abnormally according to preset conditions and generates abnormal restart data;

[0070] A lithium-ion battery is connected to the MCU control unit.

[0071] A current-limiting resistor is connected in series in the circuit connecting the lithium-ion battery to the MCU control unit;

[0072] A capacitor unit is connected in parallel to the circuit connecting the lithium-ion battery to the MCU control unit, and the capacitor unit includes one or more supercapacitors;

[0073] The 4G module and the boost chip are respectively connected to the MCU control unit, and the circuit of the lithium-ion battery connected to the MCU control unit also forms a branch circuit that is respectively connected to the 4G module and the boost chip;

[0074] The terminal device is used to connect to an external sensor, which is connected to a boost chip and is used to sample data from its deployment environment according to preset sampling parameters.

[0075] Key reference Figure 4 As shown, the terminal device in this implementation scheme consists of a lithium-ion battery BAT1, a current-limiting resistor R1, supercapacitors C1 and C2, a main control MCU U1, a boost converter chip U2, a 4G module U3, and peripheral sensors S1. The functions of each unit are as follows:

[0076] (1) BAT1 is a lithium-ion battery that powers the entire system.

[0077] (2) R1 is a current-limiting resistor, which limits the charging current of the supercapacitor and prevents the supercapacitor from over-charging and pulling down the voltage of the front-end lithium-ion battery.

[0078] (3) C1 and C2 are supercapacitors, used to store charge and discharge pulsed current when a large current is needed.

[0079] (4) U1 is the main control MCU, which collects data from peripherals and sends packets to the management platform.

[0080] (5) U2 is a boost chip. Since the power supply voltage of most sensors is higher than that of a single lithium-ion battery, a boost process is needed to supply power.

[0081] (6) U3 is a 4G module or other communication module that sends the MCU packet to the backend platform.

[0082] (7) S1 is an external sensor that collects data and sends it to the MCU for processing. The external sensor includes a gas sensor, a temperature sensor, a humidity sensor, and a light intensity sensor, but it is not limited to the above-mentioned list and can also be other sensors.

[0083] In this scenario, the terminal device can interact with the backend management platform center (backend platform server) via a 4G communication module, such as... Figure 3 This is a diagram illustrating the data interaction between the terminal device and the backend platform server.

[0084] Combination Figure 5 As shown, based on the above, this embodiment also provides a system for extending the lifespan of lithium-ion batteries, which includes:

[0085] The terminal device comprises one or more devices, each equipped with a lithium-ion battery for powering the terminal device. Each terminal device includes a capacitor unit connected to the circuit of the lithium-ion battery. The terminal device also includes an MCU control unit, which is connected to external sensors and controls the power supply to these sensors. The external sensors sample data from their deployment environment according to preset sampling parameters. At the sampling time points of the external sensors, the MCU control unit controls the terminal device to be in a powered-on state and ensures the external sensors are powered on. The MCU control unit is also used to record the number of abnormal restarts of the terminal device according to preset conditions and generate abnormal restart data. The external sensors include gas sensors, temperature sensors, humidity sensors, and illuminance sensors, but are not limited to the aforementioned types; they can also be other sensors. The external sensors collect parameters of their deployment environment and feed them back to the MCU control unit.

[0086] The data processing unit is used to acquire abnormal restart data and judge it according to preset conditions. When the number of abnormal restarts recorded in the abnormal restart data is greater than a preset value, a second judgment is made on the data sampling interval of the peripheral sensor and the number of abnormal restarts recorded by the MCU control unit according to the preset conditions. When the sampling interval is greater than a preset threshold and the number of abnormal restarts meets the preset requirements (such as when the sampling interval is adjusted to the preset value, there are still new abnormal restarts), the first judgment result is output. When the sampling interval is less than the preset threshold and there are new abnormal restarts, the sampling interval of the peripheral sensor is adjusted.

[0087] The communication module is connected to the MCU control unit, and the MCU control unit feeds back the data collected by the external sensors to the platform through the communication module. It is also used to obtain the first judgment result and output lithium-ion battery replacement information according to preset conditions.

[0088] The backend platform server, acting as a management platform, is used to obtain lithium-ion battery replacement information and forward lithium-ion battery replacement instructions.

[0089] The communication module can be integrated into the terminal device, that is, the 4G module built into the terminal device can be reused, and the data processing unit can also reuse the functions of the MCU control unit.

[0090] As an example, in this system, the lithium-ion battery powers the entire terminal device and simultaneously charges supercapacitors C1 and C2. Assuming C1 and C2 take approximately one hour to fully charge, the MCU control unit controls the power supply to the 4G module and boost chip, allowing them to operate intermittently. The MCU control unit keeps the entire terminal device in a sleep state most of the time, only activating the system at set sampling and reporting intervals.

[0091] When the lithium-ion battery is low, maintaining a specific sampling interval will cause the battery to be unable to supply current to the sensor, and because capacitors C1 and C2 cannot be fully charged, the entire terminal device will experience a power outage and restart when power is supplied to the sensor, repeating this cycle. This will lead to the device malfunctioning.

[0092] Based on this situation, the lithium-thionyl chloride battery usage monitoring method in this solution, which extends the battery life, is a backoff algorithm, which can effectively extend battery usage time. Combined with... Figure 4As shown, the device first records the number of abnormal restarts (called cold starts). When the number reaches 5, it preliminarily determines that the battery is low. At this point, the sensor sampling interval can be adjusted through a preset mechanism. For example, if the original sampling interval is N minutes, the first adjustment will change it to 2N minutes. If another abnormal restart is recorded, it means that the charge stored in the supercapacitors C1 and C2 in 2N minutes is insufficient to support the power consumption of a single sampling, so the sampling interval will be adjusted to 3N, and so on. The maximum sampling interval is the time required for C1 and C2 to fully charge, which is 1 hour.

[0093] If the sensor still cannot work after charging C1 and C2 for 1 hour, it means that the battery power is extremely low and it is no longer suitable for use. In this case, the power supply to the sensor should be permanently turned off, and the low battery status should be uploaded to the platform so that maintenance personnel can replace the battery.

[0094] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0095] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0096] The above description is only a part of the embodiments of the present invention and does not limit the scope of protection of the present invention. Any equivalent device or equivalent process transformation made based on the content of the present invention specification and drawings, or direct or indirect application in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for monitoring the usage status of a lithium-ion battery, wherein the lithium-ion battery is mounted on a terminal device and provides power to the terminal device, a capacitor unit is provided on the circuit connecting the lithium-ion battery to the terminal device, and the lithium-ion battery also charges the capacitor unit when supplying power to the terminal device, the terminal device includes an MCU control unit, the MCU control unit is connected to an external sensor and controls the power supply of the external sensor, after the external sensor is powered on, it samples data of the environment in which it is deployed according to preset sampling parameters, and the MCU control unit controls the terminal device to be in a powered-on state and the power supply of the external sensor to be connected at the sampling time node of the external sensor, characterized in that... The monitoring method includes: S01. The MCU control unit records the number of times the terminal device restarts abnormally according to preset conditions and generates abnormal restart data; S02. Obtain abnormal restart data and judge the number of abnormal restarts recorded in the abnormal restart data. If the number of abnormal restarts recorded in the abnormal restart data is greater than M, proceed to S03; otherwise, jump back to S01. Here, M is a positive integer greater than 1. S03. Determine the data sampling interval of the peripheral sensors and the number of abnormal restarts recorded by the MCU control unit according to preset conditions. When the sampling interval is greater than the preset threshold and the number of abnormal restarts meets the preset requirements, output the first judgment result and proceed to S04. When the sampling interval is less than the preset threshold and there is an increase in the number of abnormal restarts, the sampling interval is adjusted and then jumps back to S01; S04. Obtain the first judgment result and output the lithium-ion battery replacement information according to the preset conditions; S03 includes: S031. Obtain the data sampling interval of the peripheral sensor and the number of abnormal restarts recorded by the MCU control unit, judge them, and output the judgment result; S032. Obtain the judgment result. When the data sampling interval of the external sensor is greater than the preset threshold K and the number of abnormal restarts increases, output the first judgment result and proceed to S04. When the sampling interval is less than the preset threshold and there is an increase in the number of abnormal restarts, the sampling interval is adjusted according to the preset conditions to increase the sampling interval, and then jumps back to S01; When the sampling interval is less than the preset threshold and there is no new abnormal restart, maintain the current sampling interval and then jump back to S01; In S032, the sampling interval is adjusted according to the following formula: Where L is the sampling interval of the peripheral sensor, N is the initial sampling interval of the peripheral sensor, and a is the number of times the sampling interval of the peripheral sensor is adjusted, which is a positive integer.

2. The lithium sub-battery usage condition monitoring method of claim 1, wherein, M is 5; The peripheral sensors include one of the following: a gas sensor, a temperature sensor, a humidity sensor, and a light intensity sensor.

3. A method of extending the life of a lithium sub-battery, characterized by, It includes the lithium-ion battery usage monitoring method as described in claim 1 or 2, and further includes: S05. Transmit the lithium-ion battery replacement information to the management platform, where maintenance personnel receive the information and replace the lithium-ion battery in the terminal equipment.

4. The method of extending the useful life of a lithium sub-battery of claim 3, wherein, In S04, when outputting the lithium-ion battery replacement information, the MCU control unit also cuts off the power supply of the lithium-ion battery to the peripheral sensors, so that the peripheral sensors are all in a power-off state before the lithium-ion battery is replaced.

5. A system for extending the service life of lithium-thionyl chloride batteries, wherein the lithium-thionyl chloride battery usage status monitoring method according to claim 1 or 2 is characterized in that, It includes: The terminal device comprises one or more devices, each equipped with a lithium-ion battery for powering the terminal device. Each terminal device includes a capacitor unit disposed on the circuit connecting the lithium-ion battery to the terminal device. The terminal device also includes an MCU control unit, which is connected to an external sensor and controls the power supply to the external sensor. The external sensor samples data from its deployment environment according to preset sampling parameters. At the sampling time point of the external sensor, the MCU control unit controls the terminal device to be in a power-on state and the power supply to the external sensor to be connected. The MCU control unit is also used to record the number of times the terminal device restarts abnormally according to preset conditions and generate abnormal restart data. The data processing unit is used to acquire abnormal restart data recorded by the MCU control unit, and judge it according to preset conditions. When the number of abnormal restarts recorded in the abnormal restart data is greater than a preset value, a second judgment is made on the data sampling interval of the peripheral sensor and the number of abnormal restarts recorded by the MCU control unit according to the preset conditions. When the sampling interval is greater than a preset threshold and the number of abnormal restarts meets the preset requirements, the first judgment result is output. When the sampling interval is less than the preset threshold and there is an increase in the number of abnormal restarts, the sampling interval of the peripheral sensor is adjusted. The communication module is used to obtain the first judgment result and output lithium-ion battery replacement information according to preset conditions; The backend platform server, acting as a management platform, is used to obtain lithium-ion battery replacement information and forward lithium-ion battery replacement instructions.

6. A terminal device to which the lithium sub-battery use condition monitoring method according to claim 1 or 2 is applied, characterized by It includes: The MCU control unit records the number of times the terminal device restarts abnormally according to preset conditions and generates abnormal restart data; A lithium-ion battery is connected to the MCU control unit. A current-limiting resistor is connected in series in the circuit connecting the lithium-ion battery to the MCU control unit; A capacitor unit is connected in parallel to the circuit connecting the lithium-ion battery to the MCU control unit, and the capacitor unit includes one or more supercapacitors; The 4G module and the boost chip are respectively connected to the MCU control unit, and the circuit of the lithium-ion battery connected to the MCU control unit also forms a branch circuit that is respectively connected to the 4G module and the boost chip; The terminal device is used to connect to an external sensor, which is connected to a boost chip and is used to sample data from its deployment environment according to preset sampling parameters.

7. A computer readable storage medium characterized by: The storage medium stores at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, at least one program, code set, or instruction set is loaded and executed by a processor to implement the lithium-ion battery usage monitoring method as described in claim 1 or 2, or the method for extending the service life of lithium-ion batteries as described in claim 3 or 4.

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