CN113359049B - Method for detecting loss of solid-state lithium battery - Google Patents
Method for detecting loss of solid-state lithium battery Download PDFInfo
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Abstract
The invention discloses a method for detecting loss of a solid-state lithium battery, which relates to the technical field of lithium battery loss detection and solves the technical problem that the use safety potential of the lithium battery is increased because the appearance of the lithium battery cannot be monitored in the prior art, wherein appearance information of the lithium battery is analyzed by an appearance monitoring unit to obtain the number of areas with abrasion on the surface of the lithium battery, the number of areas with deformation on the surface of the lithium battery and the number of areas with stains on the surface of the lithium battery, and an appearance monitoring coefficient X i of the lithium battery is obtained by a formula, and if the appearance monitoring coefficient Xi of the lithium battery is less than the appearance monitoring coefficient threshold value of the lithium battery, the appearance monitoring of the lithium battery is judged to be normal; if the appearance monitoring coefficient Xi of the lithium battery is larger than or equal to the appearance monitoring coefficient threshold value of the lithium battery, the appearance monitoring of the lithium battery is judged to be abnormal, the appearance of the lithium battery is monitored, the phenomenon that the appearance of the lithium battery is changed to cause reduction of the use quality of a user and increase of potential safety hazards is prevented.
Description
Technical Field
The invention relates to the technical field of lithium battery loss detection, in particular to a method for detecting loss of a solid-state lithium battery.
Background
Solid state lithium batteries, which use a solid electrolyte such as a solid polymer, an inorganic lithium ion conductor, or a single ion conductor, with lithium metal as the anode, exhibit higher energy densities than lithium ion batteries that use liquid electrolytes. Furthermore, the solid electrolyte is non-flammable and prevents dendritic growth of lithium metal, thereby providing greatly improved safety; the power lithium battery has the advantages of environmental protection, long recycling life, high storage capacity, small volume and weight and the like, and is widely applied to industrial production as one of important new energy sources. In the cycle working process of the battery pack, the conditions of overhigh monomer temperature, overlarge current, overdischarge, overcharge and the like can occur, so that the service life of the battery is shortened, and even safety accidents such as battery explosion and the like are caused. Therefore, it is necessary to monitor and manage the operation state of the power lithium battery in real time.
However, in the prior art, the appearance of the lithium battery cannot be monitored, so that the potential safety hazard of the lithium battery is increased.
Disclosure of Invention
The invention aims to provide a method for detecting loss of a solid-state lithium battery, which comprises the steps of analyzing appearance information of the lithium battery through an appearance monitoring unit so as to monitor the appearance of the lithium battery, obtaining the number of areas with abrasion on the surface of the lithium battery, the number of areas with deformation on the surface of the lithium battery and the number of areas with stains on the surface of the lithium battery, obtaining an appearance monitoring coefficient Xi of the lithium battery through a formula, and comparing the appearance monitoring coefficient Xi of the lithium battery with an appearance monitoring coefficient threshold of the lithium battery: if the appearance monitoring coefficient Xi of the lithium battery is smaller than the appearance monitoring coefficient threshold value of the lithium battery, judging that the appearance monitoring of the lithium battery is normal, generating an appearance monitoring normal signal and sending the appearance monitoring normal signal to a mobile phone terminal of a monitoring person; if the appearance monitoring coefficient Xi of the lithium battery is larger than or equal to the appearance monitoring coefficient threshold value of the lithium battery, judging that the appearance monitoring of the lithium battery is abnormal, generating an appearance monitoring abnormal signal and sending the appearance monitoring abnormal signal to a mobile phone terminal of a manager; the appearance of the lithium battery is monitored, so that the appearance of the lithium battery is prevented from changing, the use quality of a user is reduced, and the potential safety hazard is increased;
The purpose of the invention can be realized by the following technical scheme:
a method for detecting loss of a solid-state lithium battery comprises the following specific steps:
step one, registering and logging, wherein a manager and a monitoring person register through a registering and logging unit;
step two, appearance monitoring, namely monitoring the appearance of the lithium battery through an appearance monitoring unit;
monitoring the environment, namely monitoring the surrounding environment of the lithium battery through an environment monitoring unit;
monitoring parameters, namely monitoring internal parameters of the lithium battery through a parameter monitoring unit;
in the second step, the appearance monitoring unit is used for analyzing appearance information of the lithium battery, so that the appearance of the lithium battery is monitored, the appearance information of the lithium battery comprises wear data, deformation data and stain data, the wear data is the number of areas with wear on the surface of the lithium battery, the deformation data is the number of areas with deformation on the surface of the lithium battery, the stain data is the number of areas with stain on the surface of the lithium battery, the surface of the lithium battery is divided into a plurality of areas, the areas are marked as i, i is 1, 2, … …, n and n is a positive integer, and the specific analysis and monitoring process is as follows:
Step S1: acquiring the number of the worn areas on the surface of the lithium battery, and marking the number of the worn areas on the surface of the lithium battery as MSi;
step S2: acquiring the number of areas with deformation on the surface of the lithium battery, and marking the number of the areas with deformation on the surface of the lithium battery as XBI;
step S3: acquiring the number of areas with stains on the surface of the lithium battery, and marking the number of the areas with stains on the surface of the lithium battery as WZi;
step S4: by the formula
Obtaining an appearance monitoring coefficient Xi of the lithium battery, wherein a1, a2 and a3 are proportional coefficients, and a1 is more than a2 is more than a3 is more than 0;
step S5: comparing the appearance monitoring coefficient Xi of the lithium battery with an appearance monitoring coefficient threshold value of the lithium battery:
if the appearance monitoring coefficient Xi of the lithium battery is smaller than the appearance monitoring coefficient threshold value of the lithium battery, judging that the appearance monitoring of the lithium battery is normal, generating an appearance monitoring normal signal and sending the appearance monitoring normal signal to a mobile phone terminal of a monitoring person;
and if the appearance monitoring coefficient Xi of the lithium battery is larger than or equal to the appearance monitoring coefficient threshold value of the lithium battery, judging that the appearance monitoring of the lithium battery is abnormal, generating an appearance monitoring abnormal signal and sending the appearance monitoring abnormal signal to a mobile phone terminal of a manager.
Further, the first step is that the registration login unit is used for the manager and the monitoring personnel to submit the manager information and the monitoring personnel information through the mobile phone terminal for registration, and data storage is carried out on the manager information and the monitoring personnel information which are successfully registered, the manager information comprises the name, the age, the time of entry and the mobile phone number of the real name authentication of the manager, and the monitoring personnel information comprises the name, the age, the time of entry and the mobile phone number of the real name authentication of the monitoring personnel.
Further, environmental monitoring unit is arranged in analyzing the all ring edge border information of lithium cell among the step three to monitor lithium cell all ring edge border, all ring edge border information includes temperature data, humidity data and dust data, the difference of the temperature of inside temperature and all ring edge border when temperature data is lithium cell charging, humidity data is the average humidity of whole day in the outside all ring edge border of lithium cell, dust data is dust content in the outside all ring edge border air of lithium cell, concrete analysis monitoring process is as follows:
step SS 1: acquiring the difference between the internal temperature of the lithium battery and the temperature of the surrounding environment during charging, and marking the difference between the internal temperature of the lithium battery and the temperature of the surrounding environment during charging as Ti;
Step SS 2: acquiring the average humidity of the lithium battery in the external surrounding environment all day, and marking the average humidity of the lithium battery in the external surrounding environment all day as Si;
step SS 3: acquiring the dust content in the air of the external surrounding environment of the lithium battery, and marking the dust content in the air of the external surrounding environment of the lithium battery as Hi;
step SS 4: by the formula Ai ═ beta (Ti × s1+ Si × s2+ Hi × s3) e s1+s2+s3 Acquiring a monitoring coefficient Ai of an external surrounding environment of the lithium battery, wherein s1, s2 and s3 are proportional coefficients, and s1 is more than s2 is more than s3 is more than 0; e is a natural constant, beta is an error factor, and the value is 2.654;
step SS 5: comparing the monitoring coefficient Ai of the external peripheral environment of the lithium battery with the monitoring coefficient threshold of the external peripheral environment:
if the monitoring coefficient Ai of the external peripheral environment of the lithium battery is smaller than the monitoring coefficient threshold of the external peripheral environment, judging that the monitoring of the external peripheral environment of the lithium battery is normal, generating an environment monitoring normal signal and sending the environment monitoring normal signal to a mobile phone terminal of a monitoring person;
and if the monitoring coefficient Ai of the external peripheral environment of the lithium battery is larger than or equal to the monitoring coefficient threshold of the external peripheral environment, judging that the monitoring of the external peripheral environment of the lithium battery is abnormal, generating an environment monitoring abnormal signal and sending the environment monitoring abnormal signal to a mobile phone terminal of a manager.
Further, the parameter monitoring unit in step four is used for analyzing the internal parameter information of the lithium battery, so as to monitor the internal parameter of the lithium battery, the internal parameter information of the lithium battery comprises voltage data, duration data and capacity data, the voltage data is the difference between the voltage in the charging process and the voltage in the discharging process of the lithium battery, the duration data is the ratio of the time-consuming duration of the lithium battery for charging to the time-consuming duration of discharging, the capacity data is the difference between the maximum electric capacity and the maximum output electric quantity of the lithium battery, and the specific analysis and monitoring process is as follows:
step T1: acquiring the difference between the voltage in the lithium battery charging process and the voltage in the lithium battery discharging process, and marking the difference between the voltage in the lithium battery charging process and the voltage in the lithium battery discharging process as DYCI;
step T2: acquiring the ratio of the charging time-consuming duration to the discharging time-consuming duration of the lithium battery, and marking the ratio of the charging time-consuming duration to the discharging time-consuming duration of the lithium battery as SBZi;
step T3: acquiring the difference between the maximum capacity and the maximum output capacity of the lithium battery, and marking the difference between the maximum capacity and the maximum output capacity of the lithium battery as SDLi;
step T4: obtaining an internal parameter monitoring coefficient CSi of the lithium battery by a formula of CSi ═ alpha (DYCI × v1+ SBZi × v2+ SDLi × v3), wherein v1, v2 and v3 are proportional coefficients, v1 is greater than v2 and greater than v3 and greater than 0, and alpha is an error correction factor and is 2.16;
Step T5: comparing the internal parameter monitoring coefficient CSi of the lithium battery with the internal parameter monitoring coefficient threshold of the lithium battery:
if the internal parameter monitoring coefficient CSi of the lithium battery is larger than or equal to the internal parameter monitoring coefficient threshold value of the lithium battery, judging that the internal parameter monitoring of the corresponding lithium battery is abnormal, generating a parameter monitoring abnormal signal and sending the parameter monitoring abnormal signal to a mobile phone terminal of a monitoring person;
and if the internal parameter monitoring coefficient CSi of the lithium battery is smaller than the internal parameter monitoring coefficient threshold value of the lithium battery, judging that the internal parameter monitoring of the corresponding lithium battery is normal, generating a parameter monitoring normal signal and sending the parameter monitoring normal signal to a mobile phone terminal of a manager.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the appearance information of the lithium battery is analyzed through an appearance monitoring unit, so that the appearance of the lithium battery is monitored, the number of worn areas on the surface of the lithium battery, the number of deformed areas on the surface of the lithium battery and the number of dirty areas on the surface of the lithium battery are obtained, the appearance monitoring coefficient Xi of the lithium battery is obtained through a formula, and the appearance monitoring coefficient Xi of the lithium battery is compared with the appearance monitoring coefficient threshold of the lithium battery: if the appearance monitoring coefficient Xi of the lithium battery is smaller than the appearance monitoring coefficient threshold value of the lithium battery, judging that the appearance monitoring of the lithium battery is normal, generating an appearance monitoring normal signal and sending the appearance monitoring normal signal to a mobile phone terminal of a monitoring person; if the appearance monitoring coefficient Xi of the lithium battery is larger than or equal to the appearance monitoring coefficient threshold value of the lithium battery, judging that the appearance monitoring of the lithium battery is abnormal, generating an appearance monitoring abnormal signal and sending the appearance monitoring abnormal signal to a mobile phone terminal of a manager; the appearance of the lithium battery is monitored, so that the appearance of the lithium battery is prevented from changing, the use quality of a user is reduced, and the potential safety hazard is increased;
2. In the invention, the ambient environment information of the lithium battery is analyzed by the environment monitoring unit, so that the ambient environment of the lithium battery is monitored, the difference between the internal temperature and the ambient environment temperature during the charging of the lithium battery, the average humidity of the lithium battery in the ambient environment outside the lithium battery throughout the day and the dust content in the ambient environment outside the lithium battery are obtained, the monitoring coefficient Ai of the ambient environment outside the lithium battery is obtained by a formula, and the monitoring coefficient Ai of the ambient environment outside the lithium battery is compared with the monitoring coefficient threshold of the ambient environment outside the lithium battery: if the monitoring coefficient Ai of the external peripheral environment of the lithium battery is smaller than the monitoring coefficient threshold of the external peripheral environment, judging that the monitoring of the external peripheral environment of the lithium battery is normal, generating an environment monitoring normal signal and sending the environment monitoring normal signal to a mobile phone terminal of a monitoring person; if the monitoring coefficient Ai of the external peripheral environment of the lithium battery is larger than or equal to the monitoring coefficient threshold of the external peripheral environment, judging that the monitoring of the external peripheral environment of the lithium battery is abnormal, generating an environment monitoring abnormal signal and sending the environment monitoring abnormal signal to a mobile phone terminal of a manager; the peripheral environment of the lithium battery is monitored, the state monitoring of the lithium battery is improved, and the faults of the lithium battery are effectively prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic block diagram of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a method for detecting loss of a solid-state lithium battery includes the following steps:
step one, registering and logging, wherein a manager and a monitoring person register through a registering and logging unit;
step two, appearance monitoring, namely monitoring the appearance of the lithium battery through an appearance monitoring unit;
Monitoring the environment, namely monitoring the surrounding environment of the lithium battery through an environment monitoring unit;
monitoring parameters, namely monitoring internal parameters of the lithium battery through a parameter monitoring unit;
the method comprises the steps that firstly, a registration login unit is used for a manager and a monitoring person to submit manager information and monitoring person information through mobile phone terminals for registration, and data storage is carried out on the manager information and the monitoring person information which are successfully registered, the manager information comprises the name, the age, the time of entry and the mobile phone number of real name authentication of the person, and the monitoring person information comprises the name, the age, the time of entry and the mobile phone number of real name authentication of the person;
in the second step, the appearance monitoring unit is used for analyzing appearance information of the lithium battery, so that the appearance of the lithium battery is monitored, the appearance information of the lithium battery comprises wear data, deformation data and stain data, the wear data is the number of areas with wear on the surface of the lithium battery, the deformation data is the number of areas with deformation on the surface of the lithium battery, the stain data is the number of areas with stain on the surface of the lithium battery, the surface of the lithium battery is divided into a plurality of areas, the areas are marked as i, i is 1, 2, … …, n and n is a positive integer, and the specific analysis and monitoring process is as follows:
Step S1: acquiring the number of the areas with wear on the surface of the lithium battery, and marking the number of the areas with wear on the surface of the lithium battery as MSi;
step S2: acquiring the number of areas with deformation on the surface of the lithium battery, and marking the number of the areas with deformation on the surface of the lithium battery as XBI;
step S3: acquiring the number of areas with stains on the surface of the lithium battery, and marking the number of the areas with stains on the surface of the lithium battery as WZi;
step S4: by the formula
Obtaining an appearance monitoring coefficient Xi of the lithium battery, wherein a1, a2 and a3 are proportional coefficients, and a1 is more than a2 is more than a3 is more than 0;
step S5: comparing the appearance monitoring coefficient Xi of the lithium battery with an appearance monitoring coefficient threshold value of the lithium battery:
if the appearance monitoring coefficient Xi of the lithium battery is smaller than the appearance monitoring coefficient threshold value of the lithium battery, judging that the appearance monitoring of the lithium battery is normal, generating an appearance monitoring normal signal and sending the appearance monitoring normal signal to a mobile phone terminal of a monitoring person;
if the appearance monitoring coefficient Xi of the lithium battery is larger than or equal to the appearance monitoring coefficient threshold value of the lithium battery, judging that the appearance monitoring of the lithium battery is abnormal, generating an appearance monitoring abnormal signal and sending the appearance monitoring abnormal signal to a mobile phone terminal of a manager;
Environmental monitoring unit is arranged in the step three in being used for carrying out the analysis to the all ring edge border information of lithium cell to monitor lithium cell all ring edge border, all ring edge border information includes temperature data, humidity data and dust data, the difference between the temperature of inside temperature and all ring edge borders when temperature data is lithium cell charging, humidity data is the average humidity of all day in the outside all ring edge border of lithium cell, dust content in the dust data is the outside all ring edge border air of lithium cell, concrete analysis monitoring process is as follows:
step SS 1: acquiring the difference between the internal temperature of the lithium battery and the temperature of the surrounding environment during charging, and marking the difference between the internal temperature of the lithium battery and the temperature of the surrounding environment during charging as Ti;
step SS 2: acquiring the average humidity of the lithium battery in the external surrounding environment all day, and marking the average humidity of the lithium battery in the external surrounding environment all day as Si;
step SS 3: acquiring the dust content in the air of the external surrounding environment of the lithium battery, and marking the dust content in the air of the external surrounding environment of the lithium battery as Hi;
step SS 4: by the formula Ai ═ beta (Ti × s1+ Si × s2+ Hi × s3) e s1+s2+s3 Acquiring a monitoring coefficient Ai of an external surrounding environment of the lithium battery, wherein s1, s2 and s3 are proportional coefficients, and s1 is more than s2 is more than s3 is more than 0; e is a natural constant, beta is an error factor, and the value is 2.654;
Step SS 5: comparing the monitoring coefficient Ai of the external peripheral environment of the lithium battery with the monitoring coefficient threshold of the external peripheral environment:
if the monitoring coefficient Ai of the external peripheral environment of the lithium battery is smaller than the monitoring coefficient threshold of the external peripheral environment, judging that the monitoring of the external peripheral environment of the lithium battery is normal, generating an environment monitoring normal signal and sending the environment monitoring normal signal to a mobile phone terminal of a monitoring person;
if the monitoring coefficient Ai of the external peripheral environment of the lithium battery is larger than or equal to the monitoring coefficient threshold of the external peripheral environment, judging that the monitoring of the external peripheral environment of the lithium battery is abnormal, generating an environment monitoring abnormal signal and sending the environment monitoring abnormal signal to a mobile phone terminal of a manager;
the parameter monitoring unit in step four is used for analyzing the internal parameter information of lithium cell to monitor the internal parameter of lithium cell, the internal parameter information of lithium cell includes voltage data, length of time data and capacity data, voltage data is the difference between the voltage in lithium cell charging process and the voltage in the discharge process, length of time data is the ratio of the length of time spent in lithium cell charging and the length of time spent in discharging, capacity data is the difference between the maximum electric capacity and the maximum output electric quantity of lithium cell, concrete analysis monitoring process is as follows:
Step T1: acquiring the difference between the voltage in the lithium battery charging process and the voltage in the lithium battery discharging process, and marking the difference between the voltage in the lithium battery charging process and the voltage in the lithium battery discharging process as DYCI;
step T2: acquiring the ratio of the charging time-consuming duration to the discharging time-consuming duration of the lithium battery, and marking the ratio of the charging time-consuming duration to the discharging time-consuming duration of the lithium battery as SBZi;
step T3: acquiring the difference between the maximum capacity and the maximum output capacity of the lithium battery, and marking the difference between the maximum capacity and the maximum output capacity of the lithium battery as SDLi;
step T4: obtaining an internal parameter monitoring coefficient CSi of the lithium battery by a formula of CSi ═ alpha (DYCI × v1+ SBZi × v2+ SDLi × v3), wherein v1, v2 and v3 are proportional coefficients, v1 is greater than v2 and greater than v3 and greater than 0, and alpha is an error correction factor and is 2.16;
step T5: comparing the internal parameter monitoring coefficient CSi of the lithium battery with the internal parameter monitoring coefficient threshold of the lithium battery:
if the internal parameter monitoring coefficient CSi of the lithium battery is larger than or equal to the internal parameter monitoring coefficient threshold value of the lithium battery, judging that the internal parameter monitoring of the corresponding lithium battery is abnormal, generating a parameter monitoring abnormal signal and sending the parameter monitoring abnormal signal to a mobile phone terminal of a monitoring person;
If the internal parameter monitoring coefficient CSi of the lithium battery is smaller than the internal parameter monitoring coefficient threshold value of the lithium battery, judging that the internal parameter monitoring of the corresponding lithium battery is normal, generating a normal parameter monitoring signal and sending the normal parameter monitoring signal to a mobile phone terminal of a manager.
The working principle of the invention is as follows:
a method for detecting loss of a solid-state lithium battery comprises the steps that when the method works, managers and monitoring personnel register through a registration unit, appearance information of the lithium battery is analyzed through an appearance monitoring unit, so that appearance of the lithium battery is monitored, the number of areas with abrasion on the surface of the lithium battery, the number of areas with deformation on the surface of the lithium battery and the number of areas with stains on the surface of the lithium battery are obtained, an appearance monitoring coefficient Xi of the lithium battery is obtained through a formula, and the appearance monitoring coefficient Xi of the lithium battery is compared with an appearance monitoring coefficient threshold of the lithium battery; monitoring the appearance of the lithium battery, preventing the appearance of the lithium battery from changing, so that the use quality of a user is reduced, increasing the potential safety hazard, analyzing the peripheral environment information of the lithium battery through an environment monitoring unit, monitoring the peripheral environment of the lithium battery, acquiring the difference between the internal temperature and the temperature of the peripheral environment during charging of the lithium battery, the average humidity of the whole day in the peripheral environment of the lithium battery and the dust content in the air in the peripheral environment of the lithium battery, acquiring a monitoring coefficient Ai of the peripheral environment of the lithium battery through a formula, and comparing the monitoring coefficient Ai of the peripheral environment of the lithium battery with a monitoring coefficient threshold of the peripheral environment of the lithium battery; the peripheral environment of the lithium battery is monitored, the state monitoring of the lithium battery is improved, the fault of the lithium battery is effectively prevented from occurring, and the parameter monitoring unit is used for analyzing the internal parameter information of the lithium battery, so that the internal parameters of the lithium battery are monitored.
The above formulas are all calculated by taking the numerical value of the dimension, the formula is a formula which obtains the latest real situation by acquiring a large amount of data and performing software simulation, and the preset parameters in the formula are set by the technical personnel in the field according to the actual situation.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (4)
1. A method for detecting loss of a solid-state lithium battery is characterized by comprising the following steps:
step one, registering and logging, wherein a manager and a monitoring person register through a registering and logging unit;
step two, appearance monitoring, namely monitoring the appearance of the lithium battery through an appearance monitoring unit;
monitoring the environment, namely monitoring the surrounding environment of the lithium battery through an environment monitoring unit;
monitoring parameters, namely monitoring internal parameters of the lithium battery through a parameter monitoring unit;
In the second step, the appearance monitoring unit is used for analyzing appearance information of the lithium battery, so that the appearance of the lithium battery is monitored, the appearance information of the lithium battery comprises wear data, deformation data and stain data, the wear data is the number of areas with wear on the surface of the lithium battery, the deformation data is the number of areas with deformation on the surface of the lithium battery, the stain data is the number of areas with stain on the surface of the lithium battery, the surface of the lithium battery is divided into a plurality of areas, the areas are marked as i, i is 1, 2, … …, n and n is a positive integer, and the specific analysis and monitoring process is as follows:
step S1: acquiring the number of the worn areas on the surface of the lithium battery, and marking the number of the worn areas on the surface of the lithium battery as MSi;
step S2: acquiring the number of areas with deformation on the surface of the lithium battery, and marking the number of the areas with deformation on the surface of the lithium battery as XBI;
step S3: acquiring the number of areas with stains on the surface of the lithium battery, and marking the number of the areas with stains on the surface of the lithium battery as WZi;
step S4: by the formula
Obtaining an appearance monitoring coefficient Xi of the lithium battery, wherein a1, a2 and a3 are proportional coefficients, and a1 is more than a2 is more than a3 is more than 0;
Step S5: and comparing the appearance monitoring coefficient Xi of the lithium battery with an appearance monitoring coefficient threshold of the lithium battery.
2. The method for detecting the loss of the solid-state lithium battery as claimed in claim 1, wherein in the first step, the registration login unit is used for the manager and the monitoring personnel to submit the manager information and the monitoring personnel information through the mobile phone terminal for registration, and to store the manager information and the monitoring personnel information which are successfully registered in a data storage mode, wherein the manager information comprises the name, the age, the time of entry and the mobile phone number for authenticating the real name of the manager, and the monitoring personnel information comprises the name, the age, the time of entry and the mobile phone number for authenticating the real name of the monitoring personnel.
3. The method according to claim 1, wherein the environment monitoring unit in the third step is configured to analyze ambient environment information of the lithium battery, so as to monitor an ambient environment of the lithium battery, the ambient environment information includes temperature data, humidity data, and dust data, the temperature data is a difference Ti between an internal temperature of the lithium battery during charging and a temperature of the ambient environment, the humidity data is an average humidity Si in the external ambient environment of the lithium battery throughout the day, and the dust data is a dust content Hi in the external ambient air of the lithium battery, and the specific analysis and monitoring process is as follows: obtaining the difference Ti between the internal temperature and the ambient temperature during the charging of the lithium battery, the average humidity Si of the whole day in the ambient environment outside the lithium battery and the dust content Hi in the air in the ambient environment outside the lithium battery, and obtaining the average humidity Si of the whole day in the ambient environment outside the lithium battery through a formula 
Obtaining the external circumference of the lithium batteryAnd (3) comparing the monitoring coefficient Ai of the external peripheral environment of the lithium battery with a monitoring coefficient threshold of the external peripheral environment, wherein s1, s2 and s3 are proportional coefficients, s1 is more than s2 is more than s3 is more than 0, e is a natural constant, beta is an error factor and takes the value of 2.654.
4. The method according to claim 1, wherein the parameter monitoring unit in the fourth step is configured to analyze internal parameter information of the lithium battery, so as to monitor the internal parameter of the lithium battery, the internal parameter information of the lithium battery includes voltage data, duration data, and capacity data, the voltage data is a difference DYCi between a voltage during charging and a voltage during discharging of the lithium battery, the duration data is a ratio SBZi between a time duration consumed by charging and a time duration consumed by discharging of the lithium battery, and the capacity data is a difference SDLi between a maximum capacity and a maximum output power of the lithium battery, and the specific analysis and monitoring process is as follows: obtaining a voltage difference DYCI between the voltage in the lithium battery charging process and the voltage in the lithium battery discharging process, a ratio SBZi of the time spent on charging and discharging of the lithium battery and a difference SDLi of the maximum capacitance and the maximum output electric quantity of the lithium battery according to a formula 
Obtaining an internal parameter monitoring coefficient CSi of the lithium battery, wherein v1, v2 and v3 are proportional coefficients, v1 is greater than v2 is greater than v3 is greater than 0, alpha is an error correction factor and is 2.16, and comparing the internal parameter monitoring coefficient CSi of the lithium battery with an internal parameter monitoring coefficient threshold value of the lithium battery.
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