Battery-grade lithium carbonate production quality assessment method

Abstract

The present application is applicable to the technical field of battery-grade lithium carbonate production, and particularly relates to a battery-grade lithium carbonate production quality assessment method. The method comprises: a control apparatus acquires an assessment request; and in response to the assessment request, the control apparatus controls a battery-grade lithium carbonate production quality assessment apparatus to assess battery-grade lithium carbonate to be assessed, so as to obtain quality assessment result information. The battery-grade lithium carbonate production quality assessment method provided by the present application can solve the problem that manual operation is required in the process of battery-grade lithium carbonate production quality assessment, and manual operation may introduce errors, affecting the accuracy of assessment results, and thus leading to low assessment efficiency.

Description

Battery-grade lithium carbonate production quality evaluation method TECHNICAL FIELD

[0001] The application belongs to the technical field of battery-grade lithium carbonate production, and particularly relates to a battery-grade lithium carbonate production quality evaluation method. BACKGROUND

[0002] Battery-grade lithium carbonate is a key material for manufacturing lithium-ion batteries. It has high purity, good crystal structure and particle uniformity, etc., and can provide stable electrochemical performance and long cycle life. Battery-grade lithium carbonate is usually prepared by chemical synthesis. In lithium-ion batteries, battery-grade lithium carbonate is part of the positive electrode material and participates in the charging and discharging reaction of the battery to store and release electrical energy. Traditional battery-grade lithium carbonate production quality evaluation requires manual operation, which may have errors (for example, manual operation may be affected by subjective factors, fatigue level, technical level, etc.), affecting the accuracy of the evaluation results and leading to low evaluation efficiency. SUMMARY

[0003] The application embodiment provides a battery-grade lithium carbonate production quality evaluation method, which can solve the problem of low evaluation efficiency caused by the need for manual operation in the battery-grade lithium carbonate production quality evaluation process, which may have errors and affect the accuracy of the evaluation results.

[0004] In a first aspect, the application embodiment provides a battery-grade lithium carbonate production quality evaluation method, including: the control device acquires an evaluation request; wherein the evaluation request indicates that the battery-grade lithium carbonate to be evaluated needs to be evaluated.

[0005] The control device responds to the evaluation request and controls the battery-grade lithium carbonate production quality evaluation device to evaluate the battery-grade lithium carbonate to be evaluated to obtain quality evaluation result information.

[0006] The above technical solutions in the application embodiment have at least the following technical effects:

[0007] Firstly, the control device obtains an evaluation request for evaluating the battery-grade lithium carbonate to be evaluated, which can clearly indicate the evaluation purpose, such as specific parameters and indicators to be evaluated, such as chemical purity, particle size distribution, and capacitance, etc., which helps to subsequently evaluate in a targeted manner and avoid blind tests and analysis, thereby improving evaluation efficiency and saving time and cost. Finally, the control device controls the battery-grade lithium carbonate production quality evaluation device to evaluate the battery-grade lithium carbonate to be evaluated in response to the evaluation request to obtain quality evaluation result information, which can reduce manual intervention and avoid human errors and uncertainties in the evaluation process, so as to accurately and comprehensively evaluate the battery-grade lithium carbonate to be evaluated, such as evaluating chemical composition, particle size, crystal structure, etc., thereby providing reliable evaluation results, which is conducive to improving evaluation efficiency.

[0008] In a second aspect, the embodiments of the present application provide a battery-grade lithium carbonate production quality evaluation system applied to a battery-grade lithium carbonate production quality evaluation device, wherein the battery-grade lithium carbonate production quality evaluation device comprises a battery-grade lithium carbonate production quality evaluation device and a control device, the battery-grade lithium carbonate production quality evaluation device and the control device are electrically connected, and the battery-grade lithium carbonate production quality evaluation system comprises:

[0009] An acquisition unit is configured to acquire an evaluation request by the control device, wherein the evaluation request indicates that the battery-grade lithium carbonate to be evaluated needs to be evaluated.

[0010] A response unit is configured to control the battery-grade lithium carbonate production quality evaluation device to evaluate the battery-grade lithium carbonate to be evaluated in response to the evaluation request by the control device, so as to obtain quality evaluation result information.

[0011] In a third aspect, the embodiments of the present application provide a battery-grade lithium carbonate production quality evaluation device, which comprises a battery-grade lithium carbonate production quality evaluation device and a control device electrically connected to the battery-grade lithium carbonate production quality evaluation device, wherein the control device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the battery-grade lithium carbonate production quality evaluation method of any one of the first aspect when executing the computer program.

[0012] It can be understood that the beneficial effects of the above-mentioned second aspect to third aspect can be referred to the related description of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0014] FIG. 1 is a flowchart of the evaluation method provided by the embodiment;

[0015] FIG. 2 is a flowchart of the implementation after step S100 provided by the embodiment;

[0016] FIG. 3 is a flowchart of the implementation after step S100 provided by the embodiment;

[0017] FIG. 4 is a flowchart of the implementation of step S200 provided by the embodiment;

[0018] FIG. 5 is a flowchart of the implementation of step S230 provided by the embodiment;

[0019] FIG. 6 is a flowchart of the implementation of step S232 provided by the embodiment;

[0020] FIG. 7 is a flowchart of the implementation of step S270 provided by the embodiment;

[0021] FIG. 8 is a structural diagram of the evaluation system provided by the embodiment of the present application;

[0022] FIG. 9 is a structural diagram of the evaluation device provided by the embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to better understand the battery-grade lithium carbonate production quality evaluation method provided by the embodiments of the present application, the specific implementation process of the battery-grade lithium carbonate production quality evaluation method provided by the embodiments of the present application will be exemplarily introduced below.

[0024] FIG. 1 shows a schematic flowchart of the evaluation method provided by the embodiment of the present application. The battery-grade lithium carbonate production quality evaluation method comprises: S100, the control device acquires an evaluation request. Wherein, the evaluation request indicates that the battery-grade lithium carbonate to be evaluated needs to be evaluated.

[0025] The control device can be provided with an interactive interface or a request receiving unit (for example, an electronic form, a software application or a physical request receiving point). When the battery-grade lithium carbonate to be evaluated needs to be evaluated, an operator can submit an evaluation request through the interactive interface or the request receiving unit. For example, the evaluation request can be input by clicking or touching the interactive interface, or by inputting the evaluation request into the electronic form or the software application in the request receiving unit through the mouse and keyboard. The evaluation request can also be sent by a remote operator or supervisor to the control device through the network or communication channel, such as through a software application, a mobile application or a remote control panel. The evaluation request can include the request time (for example, the request time in each evaluation request is identified, so that the subsequent evaluation order can be arranged according to the urgency and importance of the request time), the demand (for example, the battery-grade lithium carbonate to be evaluated can include A battery-grade lithium carbonate, B battery-grade lithium carbonate and C battery-grade lithium carbonate, and each battery-grade lithium carbonate to be evaluated has its own label, so that it can be distinguished which battery-grade lithium carbonate to be evaluated needs to be evaluated) and the purpose (for example, the specific parameters and indicators required for the evaluation of the battery-grade lithium carbonate to be evaluated, such as chemical purity, particle size distribution and capacitance, etc.).

[0026] By obtaining the evaluation request through the control device, the evaluation purpose can be determined, for example, the specific parameters and indicators for evaluation, such as chemical purity, particle size distribution and capacitance, etc. This helps to carry out subsequent evaluation in a targeted manner and avoid blind tests and analysis, thereby improving the evaluation efficiency and saving time and cost.

[0027] In one possible implementation, referring to FIG. 2, the battery-grade lithium carbonate production quality evaluation device includes a first evaluation device and a second evaluation device. After the control device obtains the evaluation request in step S100, the battery-grade lithium carbonate production quality evaluation method further includes:

[0028] S110, in the case that the first evaluation device is in the evaluation state and the second evaluation device is in the evaluation state, the first evaluation device is defined as the primary evaluation step device and the second evaluation device is defined as the secondary evaluation step device. The evaluation data channel is established between the first evaluation device and the second evaluation device. The first evaluation device is a device configured with different evaluation parameters from the second evaluation device. The first evaluation device and the second evaluation device are respectively electrically connected with the control device.

[0029] The evaluation state can be used to indicate that the evaluation device can run the evaluation task on the battery-grade lithium carbonate to be evaluated at the current time. The to-be-evaluated state can be used to indicate that the evaluation device is currently running the evaluation task on the battery-grade lithium carbonate to be evaluated, so it needs to wait for the current evaluation task to end before running the evaluation task on the battery-grade lithium carbonate to be evaluated. In the case that the first evaluation device is in the evaluation state and the second evaluation device is in the to-be-evaluated state, the first evaluation device can be defined as the primary evaluation step device, and the second evaluation device can be defined as the secondary evaluation step device. The primary evaluation step device can be a device responsible for the initial evaluation work, and the secondary evaluation step device can be a device that waits to receive the evaluation results from the primary evaluation step device before proceeding to the next evaluation task. The evaluation parameters of the first evaluation device are configured to ensure that these parameters are different from the evaluation parameters of the second evaluation device, so that the evaluation processes of the two evaluation devices are independent and interference and confusion are avoided. For example, the first evaluation device can be a chemical analysis evaluation device, and the second evaluation device can be an electrochemical performance evaluation device, so the first evaluation device is configured with different evaluation parameters from the second evaluation device, so that the battery-grade lithium carbonate to be evaluated can be evaluated comprehensively. For another example, the first device can be a fluorescence spectrum device for rapid preliminary screening to detect the basic components and impurity content of the battery-grade lithium carbonate sample, which can help to quickly exclude battery-grade lithium carbonate to be evaluated that meets certain standards and improve the efficiency of subsequent analysis. The second device can be an electron microscope for detailed observation and analysis of the microstructure, crystal structure and surface composition of the battery-grade lithium carbonate to be evaluated, so that the preliminary screening results are verified through detailed secondary analysis, which helps to find the microscopic features and details missed by the first device. An evaluation data channel is established between the first evaluation device and the second evaluation device, and the evaluation data can be transmitted by using a data interface, a network connection or other suitable means. The first evaluation device and the second evaluation device are respectively electrically connected with the control device, which can be achieved by cable connection for data transmission.

[0030] In the case that the first evaluation device is in the evaluation state and the second evaluation device is in the to-be-evaluated state, the first evaluation device is defined as the primary evaluation step device, and the second evaluation device is defined as the secondary evaluation step device, which can be adjusted according to different evaluation requirements and targets, so that more comprehensive and multi-angle evaluation results can be obtained, providing more accurate information for subsequent processing and decision-making, which helps to improve the evaluation efficiency.

[0031] S120, in the case that the secondary evaluation step device receives the first evaluation instruction sent by the control device, the secondary evaluation step device acquires the evaluation information of the first evaluation step device through the evaluation data channel. The first evaluation instruction is used to instruct the battery-grade lithium carbonate production quality evaluation device to evaluate the quality of the first battery-grade lithium carbonate, and the evaluation information is used to reflect the evaluation of the quality of the first battery-grade lithium carbonate by the first evaluation step device.

[0032] After the control device acquires the evaluation request, the control device can generate a first evaluation instruction to instruct the battery-grade lithium carbonate production quality evaluation device to evaluate the quality of the first battery-grade lithium carbonate. The first evaluation instruction can include specific operations, parameter settings, and information on which devices to use for comprehensive evaluation of the quality of the first battery-grade lithium carbonate. After the control device acquires the evaluation request, the control device can analyze the evaluation request to obtain information on which device to use for the evaluation task. For example, after obtaining information on which first evaluation device and second evaluation device to use for the evaluation task, the control device sends the first evaluation instruction to the target device, i.e., the first evaluation device and the second evaluation device. In the case that the secondary evaluation step device receives the first evaluation instruction, first, the secondary evaluation step device acquires the evaluation information of the primary evaluation step device through the evaluation data channel (for example, the evaluation result of the quality of the first battery-grade lithium carbonate by the primary evaluation step device can include qualified or unqualified or which parameter does not meet the requirements), which can be achieved by sending a request or a query command to the primary evaluation step device and waiting for its response or data transmission. Then, after the primary evaluation step device receives the request or query from the secondary evaluation step device, the primary evaluation step device transmits the corresponding evaluation information to the secondary evaluation step device through the evaluation data channel according to the content of the request, which can ensure that the secondary evaluation step device can acquire the evaluation of the quality of the first battery-grade lithium carbonate. After the secondary evaluation step device receives the evaluation information transmitted by the primary evaluation step device, the secondary evaluation step device can perform further processing, analysis or display, which can include display of the evaluation result, data comparison, statistical analysis and other operations, so as to obtain more comprehensive evaluation results.

[0033] In the case that the secondary evaluation step device receives the first evaluation instruction sent by the control device, the secondary evaluation step device acquires the evaluation information of the first evaluation step device through the evaluation data channel, which helps the two evaluation steps to work cooperatively, which helps to improve the comprehensiveness and accuracy of the evaluation, and thus improves the evaluation efficiency.

[0034] S130, in the case that the evaluation information meets the preset evaluation termination condition, the secondary evaluation step device generates an evaluation termination signal for the first battery-grade lithium carbonate, and the secondary evaluation step device sends the evaluation termination signal for the first battery-grade lithium carbonate to the primary evaluation step device through the evaluation data channel, and generates an evaluation task signal for evaluating the quality of the second battery-grade lithium carbonate. Wherein, the evaluation termination signal is used to instruct the primary evaluation step device and the secondary evaluation step device to stop establishing the evaluation task for the quality of the first battery-grade lithium carbonate between the control device, and the evaluation task signal is used to instruct the control device that the battery-grade lithium carbonate production quality evaluation device can evaluate the quality of the second battery-grade lithium carbonate.

[0035] Firstly, the condition for terminating the evaluation is determined, which can include that the specific parameter value or quality index of the battery-grade lithium carbonate reaches the preset threshold, so that the secondary evaluation step device can judge whether the termination condition is met according to these conditions. Then, the secondary evaluation step device continuously monitors the evaluation information and compares it with the preset evaluation termination condition. Once the evaluation information meets the termination condition, for example, the evaluation result of the primary evaluation step device for the quality of the first battery-grade lithium carbonate is unqualified, the secondary evaluation step device will generate an evaluation termination signal. Then, the secondary evaluation step device sends the evaluation termination signal to the primary evaluation step device through the evaluation data channel, which can be realized by sending specific control data or commands to the primary evaluation step device. At the same time, the secondary evaluation step device generates an evaluation task signal for evaluating the quality of the second battery-grade lithium carbonate, which is used to instruct the control device that the battery-grade lithium carbonate production quality evaluation device can start to evaluate the quality of the second battery-grade lithium carbonate.

[0036] In the case that the evaluation information meets the preset evaluation termination condition, the secondary evaluation step device generates an evaluation termination signal for the first battery-grade lithium carbonate, and the secondary evaluation step device sends the evaluation termination signal for the first battery-grade lithium carbonate to the primary evaluation step device through the evaluation data channel, and generates an evaluation task signal for evaluating the quality of the second battery-grade lithium carbonate. According to the actual evaluation situation, the evaluation strategy can be dynamically adjusted, which can avoid wasting evaluation resources, and use the resources to evaluate other battery-grade lithium carbonates or perform other important tasks, which helps to improve the utilization efficiency of resources, and further improves the evaluation efficiency.

[0037] In a possible implementation, please refer to FIG. 3. After the control device obtains the evaluation request in step S100, the battery-grade lithium carbonate production quality evaluation method further includes:

[0038] S140, after obtaining the evaluation request, the first operation is listened to. Wherein, the first operation is used to adjust the evaluation order of the first evaluation device and the second evaluation device.

[0039] A listener or trigger can be set in the control device to monitor the first operation. The first operation can be an operation of an operator clicking or touching an interactive interface to adjust the evaluation order of the first evaluation device and the second evaluation device. Once the listener detects the first operation, the control will execute the first operation to adjust the evaluation order of the first evaluation device and the second evaluation device, which can be updating the evaluation task queue, adjusting the evaluation priority, rearranging the workflow of the evaluation device, etc. During the execution of the first operation, the relevant evaluation devices can be notified to ensure that they can work according to the new evaluation order. The notification can be sending instructions or task update information to the first evaluation device and the second evaluation device.

[0040] After obtaining the evaluation request, the first operation is monitored. The execution order of the evaluation task can be reasonably arranged according to the priority, time requirement or other constraint conditions of the evaluation request to improve the efficiency and flexibility of the evaluation process, thereby maximizing the use of resources of the evaluation device and avoiding resource waste or idle time, thereby improving the resource utilization rate and evaluation efficiency.

[0041] S150, in the case where the first operation is not monitored, the first evaluation device is defined as the primary evaluation step device and the second evaluation device is defined as the secondary evaluation step device to establish an evaluation process of running the first evaluation device to perform the evaluation task first and then running the second evaluation device to perform the evaluation task.

[0042] In the evaluation device configuration stage, the first evaluation device is preset to be defined as the primary evaluation step device and the second evaluation device is defined as the secondary evaluation step device. In this way, in the case where the first operation is not monitored, the control device will operate according to the preset evaluation process by default. Therefore, after the first evaluation device completes the evaluation task, the control device will automatically schedule the second evaluation device to perform the evaluation, which ensures the orderliness and consistency of the evaluation process.

[0043] In the case where the first operation is not monitored, the first evaluation device is defined as the primary evaluation step device and the second evaluation device is defined as the secondary evaluation step device to establish an evaluation process of running the first evaluation device to perform the evaluation task first and then running the second evaluation device to perform the evaluation task, which can avoid confusion and conflict and improve the stability and reliability of the evaluation process.

[0044] S160, in the case where the first operation is monitored, the second evaluation device is defined as the primary evaluation step device and the first evaluation device is defined as the secondary evaluation step device to establish an evaluation process of running the second evaluation device to perform the evaluation task first and then running the first evaluation device to perform the evaluation task.

[0045] In the case of listening to the first operation, the control device parses the information in the first operation to understand how to adjust the evaluation sequence. For example, the first operation requires the second evaluation device to be placed in the first step evaluation process, and the first evaluation device to be placed in the second step evaluation process. Then the control device defines the second evaluation device as the first evaluation step device and the first evaluation device as the secondary evaluation step device. According to the adjusted evaluation sequence, the evaluation tasks are executed in turn to ensure that the evaluation devices evaluate the battery-grade lithium carbonate to be evaluated according to the specified order to meet the evaluation requirements.

[0046] In the case of listening to the first operation, the second evaluation device is defined as the first evaluation step device and the first evaluation device is defined as the secondary evaluation step device to establish an evaluation process that first runs the second evaluation device to perform the evaluation task and then runs the first evaluation device to perform the evaluation task. The evaluation sequence can be dynamically adjusted according to real-time needs to respond to priority changes or emergency situations in different scenarios, improving the flexibility and adaptability of the evaluation process.

[0047] In one possible implementation, the battery-grade lithium carbonate production quality evaluation method further includes: in the case where the evaluation information does not satisfy the preset evaluation termination condition, the secondary evaluation step device generates an evaluation maintenance signal to make the secondary evaluation step device perform the evaluation task on the quality of the first battery-grade lithium carbonate after the first evaluation step device completes the evaluation task on the quality of the first battery-grade lithium carbonate.

[0048] First, determine the conditions for terminating the evaluation, which can include specific parameter values or quality indicators of the battery-grade lithium carbonate reaching a preset threshold, so that the secondary evaluation step device can determine whether the termination condition is met according to these conditions. Then, the secondary evaluation step device continuously monitors the evaluation information and compares it with the preset evaluation termination condition. In the case where the evaluation information does not satisfy the preset evaluation termination condition, for example, the primary evaluation step device's evaluation result of the quality of the first battery-grade lithium carbonate is qualified, the secondary evaluation step device will generate an evaluation maintenance signal to make the secondary evaluation step device perform the evaluation task on the quality of the first battery-grade lithium carbonate after the first evaluation step device completes the evaluation task on the quality of the first battery-grade lithium carbonate, and the secondary evaluation step device can use the data or results provided by the primary evaluation step device for comprehensive evaluation.

[0049] In the case that the evaluation information does not satisfy the preset evaluation termination condition, the secondary evaluation step device generates an evaluation maintenance signal, so that the secondary evaluation step device performs the evaluation task of the first battery-grade lithium carbonate quality after the primary evaluation step device completes the evaluation task of the first battery-grade lithium carbonate quality. The results of the primary evaluation step device that have been completed can be used to continue the comprehensive evaluation of the quality of the first battery-grade lithium carbonate, so that the part that has been completed is avoided from being repeatedly evaluated, evaluation resources are saved, and resource utilization efficiency is improved.

[0050] In a possible implementation, after the primary evaluation step device and the secondary evaluation step device stop establishing the evaluation task of the first battery-grade lithium carbonate quality with the control device, the battery-grade lithium carbonate production quality evaluation method further includes:

[0051] In response to the second operation on the evaluation task signal, the primary evaluation step device sends a first signal for evaluating the quality of the second battery-grade lithium carbonate to the secondary evaluation step device through the evaluation data channel, so that the battery-grade lithium carbonate production quality evaluation device creates an evaluation procedure for evaluating the quality of the second battery-grade lithium carbonate.

[0052] The first operation can be that an operator clicks or touches an interactive interface to create an evaluation task for evaluating the quality of the second battery-grade lithium carbonate. After the primary evaluation step device and the secondary evaluation step device stop establishing the evaluation task of the first battery-grade lithium carbonate quality with the control device, the control device can analyze the first operation to know which battery-grade lithium carbonate quality needs to be evaluated in the next stage. Then, the control device sends a control signal to the primary evaluation step device to inform the primary evaluation step device that the quality of the second battery-grade lithium carbonate needs to be evaluated. Then, the primary evaluation step device sends a first signal for evaluating the quality of the second battery-grade lithium carbonate to the secondary evaluation step device through the evaluation data channel. According to the received signal, the battery-grade lithium carbonate production quality evaluation device (for example, the first evaluation device and the second evaluation device) can create an evaluation procedure for evaluating the quality of the second battery-grade lithium carbonate. The procedure can include setting an evaluation parameter, preparing a device selection for evaluation, and performing an evaluation task.

[0053] In response to the second operation on the evaluation task signal, the primary evaluation step device sends a first signal for evaluating the quality of the second battery-grade lithium carbonate to the secondary evaluation step device through the evaluation data channel, so that the battery-grade lithium carbonate production quality evaluation device creates an evaluation procedure for evaluating the quality of the second battery-grade lithium carbonate. This can ensure the coordination and sequence of the evaluation task, so that confusion and repetition are avoided, the evaluation process is orderly performed, and the evaluation efficiency is improved.

[0054] S200, in response to the evaluation request, the control device controls the battery-grade lithium carbonate production quality evaluation device to evaluate the battery-grade lithium carbonate to be evaluated to obtain quality evaluation result information.

[0055] First, the control device receives the evaluation request, confirms the specific requirements and standards of the evaluation, including the required evaluation parameters, the quantity of the battery-grade lithium carbonate to be evaluated, the evaluation method, etc. Then, according to the requirements of the evaluation request, the parameters and conditions of the evaluation device are set, including the selection of the device, the working mode of the device, the detection range, etc. For example, the evaluation request clearly requires the evaluation of the capacitance of A battery-grade lithium carbonate, so the control device controls the electrochemical performance evaluation device to evaluate the capacitance of A battery-grade lithium carbonate to obtain the evaluation result information of the capacitance of A battery-grade lithium carbonate. For another example, the evaluation request clearly requires the evaluation of the capacitance and purity of A battery-grade lithium carbonate, so the control device controls the electrochemical performance evaluation device to evaluate the capacitance of A battery-grade lithium carbonate, and controls the chemical analysis evaluation device to evaluate the purity of A battery-grade lithium carbonate to obtain the evaluation result information of the capacitance of A battery-grade lithium carbonate, wherein when the evaluation result of the electrochemical performance evaluation device on the capacitance of A battery-grade lithium carbonate is unqualified, the control device will not control the chemical analysis evaluation device to evaluate the purity of A battery-grade lithium carbonate, i.e. A battery-grade lithium carbonate is a defective product. The sample of the battery-grade lithium carbonate to be evaluated is placed in the evaluation device for evaluation, and then the battery-grade lithium carbonate production quality evaluation device is controlled according to the set parameters and methods to evaluate the battery-grade lithium carbonate to be evaluated to obtain quality evaluation result information, which can include the quality evaluation result of the battery-grade lithium carbonate to be evaluated and the existing problems, etc.

[0056] By controlling the device to respond to the evaluation request and controlling the battery-grade lithium carbonate production quality evaluation device to evaluate the battery-grade lithium carbonate to be evaluated, the quality evaluation result information can be obtained, which can reduce manual intervention, avoid human errors and uncertainties in the evaluation process, and accurately and comprehensively evaluate the battery-grade lithium carbonate to be evaluated, such as evaluating the chemical composition, particle size, crystal structure, etc., thereby providing reliable evaluation results, which is conducive to improving the evaluation efficiency.

[0057] In one possible implementation, please refer to FIG. 4, S200, in response to the evaluation request, the control device controls the battery-grade lithium carbonate production quality evaluation device to evaluate the battery-grade lithium carbonate to be evaluated to obtain quality evaluation result information, including:

[0058] S210, in the case of obtaining the evaluation request, it is determined whether the evaluation request is for evaluating the third battery-grade lithium carbonate. The third battery-grade lithium carbonate is the battery-grade lithium carbonate that has completed the evaluation on the first evaluation step device and has not completed the evaluation on the secondary evaluation step device.

[0059] In the evaluation process, the first evaluation step device can record the battery-grade lithium carbonate information of each battery-grade lithium carbonate. For example, the battery-grade lithium carbonate information can indicate that the A battery-grade lithium carbonate has completed evaluation on the first evaluation step device and the evaluation result is qualified (i.e., the A battery-grade lithium carbonate is the third battery-grade lithium carbonate), or the battery-grade lithium carbonate information can indicate that the B battery-grade lithium carbonate has completed evaluation on the first evaluation step device and the evaluation result is unqualified, or the battery-grade lithium carbonate information can indicate that the C battery-grade lithium carbonate has not completed evaluation on the first evaluation step device. The battery-grade lithium carbonate information is fed back to the control device, so that the control device can know which battery-grade lithium carbonate to be evaluated is the battery-grade lithium carbonate that has completed evaluation on the first evaluation step device, i.e., which battery-grade lithium carbonate to be evaluated is the third battery-grade lithium carbonate. Therefore, the operator can select the battery-grade lithium carbonate to be evaluated as the evaluation object on the interactive interface of the control device to initiate an evaluation request for the evaluation object. When the evaluation request is obtained, the battery-grade lithium carbonate information contained in the evaluation request needs to be checked to determine whether the evaluation request is for the third battery-grade lithium carbonate. For example, the battery-grade lithium carbonate information in the evaluation request can be parsed to understand which battery-grade lithium carbonate to be evaluated is requested to be evaluated.

[0060] When the evaluation request is obtained, it is determined whether the evaluation request is for the third battery-grade lithium carbonate. The evaluation can be performed in a targeted manner, which helps to avoid evaluating the wrong battery-grade lithium carbonate (i.e., avoiding evaluating the battery-grade lithium carbonate to be evaluated that the operator does not want to evaluate), and improves the execution efficiency of the evaluation task.

[0061] S220, in the case where the evaluation request is for the third battery-grade lithium carbonate, a list of secondary evaluation step devices is obtained. The list of secondary evaluation step devices includes at least one secondary evaluation step device.

[0062] Firstly, it is confirmed that the current evaluation request is for the third battery-grade lithium carbonate, which can be realized by the automatic unit according to a specific identifier (such as a field of the evaluation request) in the evaluation request. Then, the list of secondary evaluation step devices is established, which can include the information of all secondary evaluation step devices (for example, can include the evaluation parameters, running state, etc. of the secondary evaluation step devices) to ensure that the list contains at least one secondary evaluation step device. In the case where the evaluation request is for the third battery-grade lithium carbonate, the list of secondary evaluation step devices is obtained, which can be realized by querying the list of secondary evaluation step devices.

[0063] In the case where the evaluation request is for the third battery level lithium carbonate, the secondary evaluation step device list is obtained, which can ensure the use of correct devices in the subsequent evaluation process, which helps to improve the accuracy and reliability of the evaluation, and ensures that the evaluation results are more reliable.

[0064] S230, obtaining the device state of each secondary evaluation step device in the secondary evaluation step device list.

[0065] Sensors and instruments are installed on each secondary evaluation step device, such as temperature sensors, pressure sensors, and vibration sensors, which can detect various parameters of the device, such as temperature, pressure, and vibration, to monitor the status of each secondary evaluation step device in real time, and the obtained information is entered into the secondary evaluation step device list, and the device state of each secondary evaluation step device in the secondary evaluation step device list can be obtained through the control device. The device state of the secondary evaluation step device can include fault state or normal operation state or idle state or non-idle state, etc.

[0066] By obtaining the device state of each secondary evaluation step device in the secondary evaluation step device list, the running state of each secondary evaluation step device can be accurately understood, including normal operation, fault or need for maintenance, etc., which helps to understand the health status and performance of the device, to avoid using faulty devices for subsequent evaluation, and helps to improve the efficiency of subsequent evaluation.

[0067] In one possible implementation, please refer to Figure 5, S230, obtaining the device state of each secondary evaluation step device in the secondary evaluation step device list, including:

[0068] S231, obtaining the working state and device running state of each secondary evaluation step device in the secondary evaluation step device list. The working state includes idle state or non-idle state, and the device running state includes fault state or normal operation state.

[0069] The data monitored by the sensors in real time is analyzed to understand the working state and device running state of each secondary evaluation step device, for example, abnormal vibration obtained by the vibration sensor indicates that the current secondary evaluation step device is faulty, and for example, the temperature obtained by the temperature sensor is the temperature of the secondary evaluation step device in the idle state, indicating that the current secondary evaluation step device is in the idle state. For example, the current consumption of the device is monitored by the current sensor to determine whether it is in the working state (idle or non-idle). The working state and device running state of each secondary evaluation step device are obtained in real time by the control device, such as whether the device is running, whether it is in the idle state, whether it is faulty, etc.

[0070] The working state and device running state of each secondary evaluation step device in the secondary evaluation step device list are acquired, which can avoid using a faulty device for subsequent evaluation, and help improve the subsequent evaluation efficiency.

[0071] S232, for each secondary evaluation step device, determining the device state according to the working state and device running state.

[0072] The working state and device running state can be comprehensively analyzed to determine the device state. For example, if the device is in a non-idle state and normally operates, the device can be determined as a non-executable evaluation request state; if the device is in a non-idle state but has a fault, the device can be determined as a non-executable evaluation request state; if the device is in an idle state and normally operates, the device can be determined as an executable evaluation request state; and if the device is in an idle state but has a fault, the device can be determined as a non-executable evaluation request state.

[0073] For each secondary evaluation step device, determining the device state according to the working state and device running state can better understand the actual situation and operating condition of each device, and further provide data support for effective device optimization management.

[0074] In a possible implementation, referring to FIG. 6, S232, for each secondary evaluation step device, determining the device state according to the working state and device running state, includes:

[0075] S2321, in a case where the secondary evaluation step device is in an idle state and a normal operating state at the same time, determining the device state of the secondary evaluation step device as an executable evaluation request state.

[0076] The definitions of the idle state and the normal operating state can be explicitly defined. The idle state: the device is not occupied by a current task and can accept a new task. The normal operating state: the device functions normally and has no fault, and can execute a task. A logical rule is set to determine whether the device state of the secondary evaluation step device is an executable evaluation request state. In a case where the secondary evaluation step device is in an idle state and a normal operating state at the same time, the device state of the secondary evaluation step device is determined as an executable evaluation request state.

[0077] In a case where the secondary evaluation step device is in an idle state and a normal operating state at the same time, the device state of the secondary evaluation step device is determined as an executable evaluation request state, which can ensure that the idle and normally functioning device can immediately accept a new evaluation request, can maximize the use of device resources, avoid device idling and waste, and further improve the evaluation efficiency.

[0078] S2322, in the case that the secondary evaluation step device is in a non-idle state and / or in a fault state, determining that the device state of the secondary evaluation step device is an unexecutable evaluation request state.

[0079] The definitions of the "idle state" and the "normal operation state" can be explicitly defined. The idle state: the device is not occupied by the current task and can accept new tasks. The normal operation state: the device functions normally and has no faults and can execute tasks. A logical rule is set to determine whether the device state of the secondary evaluation step device is an executable evaluation request state. In the case that the secondary evaluation step device is in a non-idle state and / or in a fault state, it is determined that the device state of the secondary evaluation step device is an unexecutable evaluation request state.

[0080] In the case that the secondary evaluation step device is in a non-idle state and / or in a fault state, determining that the device state of the secondary evaluation step device is an unexecutable evaluation request state can avoid incorrect output caused by device problems and ensure the reliability of the evaluation results.

[0081] In a possible implementation, after the device state of each secondary evaluation step device in the list of secondary evaluation step devices is obtained in step S230, the battery-grade lithium carbonate production quality evaluation method further includes:

[0082] S233, if each secondary evaluation step device is not in an executable evaluation request state, retaining the evaluation request and the first evaluation result information in the control device.

[0083] In the case that each secondary evaluation step device is not in an executable evaluation request state, the evaluation request and the first evaluation result information are stored in the memory or the waiting queue of the control device, so as to be re-sent to the secondary evaluation step device at a subsequent appropriate time. According to different request types or urgency, the requests in the queue are prioritized to ensure that critical tasks are processed in priority. A periodic check mechanism is set to periodically check the state of the secondary evaluation step device, and once a device recovers to an executable evaluation request state, the evaluation request and the first evaluation result information are immediately taken out from the waiting queue for processing.

[0084] If each secondary evaluation step device is not in an executable evaluation request state, the evaluation request and the first evaluation result information are retained in the control device, which can avoid data loss caused by the inability of each secondary evaluation step device to execute, and once the device state changes to an executable evaluation request state, the evaluation request can be immediately sent, thereby ensuring the integrity and accuracy of the data.

[0085] In a possible implementation, in step S233, if none of the secondary evaluation step devices is in the executable evaluation request state, after the evaluation request and the first evaluation result information are retained in the control device, the battery-grade lithium carbonate production quality evaluation method further includes:

[0086] S2331, when a certain secondary evaluation step device in the list of secondary evaluation step devices changes from the non-executable evaluation request state to the executable evaluation request state, the evaluation request and the first evaluation result information of the first evaluation step device on the third battery-grade lithium carbonate are sent to the target device.

[0087] The state of the secondary evaluation step device is monitored, and when it changes from the non-executable evaluation request state to the executable evaluation request state, a corresponding processing program is triggered, which is to obtain the evaluation request information and the first evaluation result information to be processed from the memory or the waiting queue, and send the evaluation request and the first evaluation result information of the first evaluation step device on the third battery-grade lithium carbonate to the target device.

[0088] When a certain secondary evaluation step device in the list of secondary evaluation step devices changes from the non-executable evaluation request state to the executable evaluation request state, the evaluation request and the first evaluation result information of the first evaluation step device on the third battery-grade lithium carbonate are sent to the target device, which helps to timely deliver the evaluation request and the first evaluation result information, so as to improve the overall response speed and processing efficiency, thereby reducing delay and resource waste.

[0089] S240, the secondary evaluation step device in the list of secondary evaluation step devices in the executable evaluation request state is determined as the target device.

[0090] The state information of each device can be checked, which includes its current running state, availability, fault history, etc., which can be realized through the control system interface, the monitoring system or the state display of the device itself, and then it is confirmed which devices in the list of secondary evaluation step devices are in the executable evaluation request state, for example, the state information of device A indicates that it is in fault, so device A is not in the executable evaluation request state, and for example, the state information of device B indicates that it is not in fault, so device B is in the executable evaluation request state. The executable evaluation request state can represent that the device at the current time can execute the evaluation request, and the secondary evaluation step device in the list of secondary evaluation step devices in the executable evaluation request state is determined as the target device. If there are multiple devices in the executable evaluation request state, the devices can be sorted according to their priorities to determine which device should be selected as the target device first, for example, a load balancing strategy can be used to determine the device with lower current load as the target device. For example, the devices can be sorted according to their response times, and the device with faster current response time is determined as the target device.

[0091] The secondary evaluation step device in the executable evaluation request state in the secondary evaluation step device list is determined as the target device, which helps subsequent reasonable allocation of evaluation tasks, prevents some devices from being overloaded while other devices are idle, and improves overall evaluation efficiency.

[0092] S250, the evaluation request and the first evaluation result information of the first evaluation step device on the third battery-grade lithium carbonate are sent to the target device.

[0093] Ensure that the evaluation request and the first evaluation result information are ready and stored in a suitable data format, which can be in the form of text, table, database, etc. Determine the target device that is ready to receive the evaluation request and the first evaluation result information, and ensure that the target device has the ability to receive and process the information. Select an appropriate sending method to send the evaluation request and the first evaluation result information to the target device, which can be in the form of email, internal system message, file transfer, etc. Confirm that the target device has successfully received the evaluation request and the first evaluation result information, which can be verified by return confirmation, system log checking, etc. The first evaluation result information includes the information that the first evaluation step device evaluates the third battery-grade lithium carbonate as qualified or unqualified.

[0094] Sending the evaluation request and the first evaluation result information of the first evaluation step device on the third battery-grade lithium carbonate to the target device can realize real-time data transmission, which enables the target device to obtain the latest evaluation result in time, and the subsequent evaluation process can be analyzed based on the latest evaluation result, which helps to realize more efficient evaluation and decision-making process.

[0095] S260, based on the evaluation request, controlling the secondary evaluation step device to evaluate the third battery-grade lithium carbonate to obtain the second evaluation result information.

[0096] Analyze the evaluation request to determine the specific content and standards of the evaluation request, including the required evaluation of the third battery-grade lithium carbonate characteristic parameters, the method of evaluating the third battery-grade lithium carbonate and the evaluation index, etc. These information will be used to configure and control the secondary evaluation step device. Ensure that the secondary evaluation step device is ready, including good device state, required software and tools installed and available, etc. According to the evaluation request, make a specific evaluation plan for the third battery-grade lithium carbonate, including the time schedule, operation steps, quality standards, etc. Perform evaluation on the secondary evaluation step device, ensure that the operation is carried out according to the evaluation plan, and record the key data and results in the evaluation process, i.e. the second evaluation result information. The second evaluation result information includes the evaluation conclusion (for example, the product is qualified or unqualified), the numerical value of the index or the possible problems, etc.

[0097] Based on the evaluation request, the secondary evaluation step device evaluates the third battery-grade lithium carbonate to obtain second evaluation result information, which can more accurately understand the performance indicators of the third battery-grade lithium carbonate and more accurately grasp its quality, helping to obtain more comprehensive evaluation data in the subsequent process to improve the evaluation efficiency.

[0098] S270, based on the first evaluation result information and the second evaluation result information, comprehensive analysis is carried out to obtain quality evaluation result information.

[0099] In the case where the first evaluation result information indicates that it is qualified and the second evaluation result information indicates that it is qualified, the weighted average method can be used for comprehensive analysis to obtain the quality evaluation result information. For example, the first evaluation result information indicates that the actual value of purity is 99.5%, the standard range of purity is [99%, 100%], the second evaluation result information indicates that the actual value of particle size distribution is D50=11µm, and the standard range is [8µm, 12µm], and the normalized value is calculated as follows: purity value=(99.5-99)÷(100-99=0.5), particle size distribution value=(11-8)÷(12-8)=0.75, and each index is assigned a weight, such as purity value accounting for 40%, particle size distribution value accounting for 60%, and comprehensive evaluation value=(40%÷0.5+60%÷0.75)÷2=0.8. According to the comprehensive evaluation value, the product quality can be explained, and the quality evaluation level can be predefined as follows: excellent for 0.8-1.0, good for 0.6-0.8, qualified for 0.4-0.6, and unqualified for 0-0.4. The comprehensive evaluation value of the battery-grade lithium carbonate to be evaluated is 0.8, which falls within the excellent range. For another example, if the first evaluation result information indicates that it is qualified and the second evaluation result information indicates that it is unqualified, the final quality evaluation result information is unqualified.

[0100] Based on the first evaluation result information and the second evaluation result information, comprehensive analysis is carried out to obtain quality evaluation result information, which can verify the quality of the battery-grade lithium carbonate to be evaluated from different angles, reduce the possible deviation of a single evaluation method, and thus improve the evaluation efficiency.

[0101] In one possible implementation, please refer to FIG. 7, S270, based on the first evaluation result information and the second evaluation result information, comprehensive analysis is carried out to obtain quality evaluation result information, including:

[0102] S271, in the case where the first evaluation result information reflects a qualified value and the second evaluation result information reflects a qualified value, a first result information of the quality evaluation result information is obtained. The first result information is used to indicate that the quality of the third battery-grade lithium carbonate is qualified.

[0103] The first evaluation result information of the third battery-grade lithium carbonate is obtained from the first evaluation step device to confirm whether the first evaluation result information reflects a qualified value. The second evaluation result information of the third battery-grade lithium carbonate is obtained from the secondary evaluation step device to confirm whether the second evaluation result information reflects a qualified value. In the case that the first evaluation result information reflects a qualified value and the second evaluation result information reflects a qualified value, a first result information of the quality evaluation result information is obtained, i.e., the quality of the third battery-grade lithium carbonate is qualified.

[0104] In the case that the first evaluation result information reflects a qualified value and the second evaluation result information reflects a qualified value, the first result information of the quality evaluation result information is obtained, which can enhance the reliability and accuracy of the evaluation result and reduce the errors and uncertainties that may exist due to a single evaluation step.

[0105] S272, in the case that the first evaluation result information reflects an unqualified value and the second evaluation result information reflects a qualified value, a second result information of the quality evaluation result information is obtained. The second result information is used to indicate that the quality of the third battery-grade lithium carbonate is unqualified.

[0106] The first evaluation result information of the third battery-grade lithium carbonate is obtained from the first evaluation step device to confirm whether the first evaluation result information reflects a qualified value. The second evaluation result information of the third battery-grade lithium carbonate is obtained from the secondary evaluation step device to confirm whether the second evaluation result information reflects a qualified value. In the case that the first evaluation result information reflects an unqualified value and the second evaluation result information reflects a qualified value, a second result information of the quality evaluation result information is obtained, i.e., the quality of the third battery-grade lithium carbonate is unqualified.

[0107] In the case that the first evaluation result information reflects an unqualified value and the second evaluation result information reflects a qualified value, the second result information of the quality evaluation result information is obtained, which can enhance the reliability and accuracy of the evaluation result and reduce the errors and uncertainties that may exist due to a single evaluation step.

[0108] S273, in the case that the first evaluation result information reflects a qualified value and the second evaluation result information reflects an unqualified value, a second result information of the quality evaluation result information is obtained.

[0109] The first evaluation result information of the third battery-grade lithium carbonate is obtained from the first evaluation step device to confirm whether the first evaluation result information reflects a qualified value. The second evaluation result information of the third battery-grade lithium carbonate is obtained from the secondary evaluation step device to confirm whether the second evaluation result information reflects a qualified value. In the case that the first evaluation result information reflects a qualified value and the second evaluation result information reflects an unqualified value, a second result information of the quality evaluation result information is obtained, i.e., the quality of the third battery-grade lithium carbonate is unqualified.

[0110] In the case that the first evaluation result information reflects a qualified value and the second evaluation result information reflects an unqualified value, the second result information of the quality evaluation result information is obtained, which can enhance the reliability and accuracy of the evaluation result and reduce the errors and uncertainties that may exist due to a single evaluation step.

[0111] S274, in the case that the first evaluation result information reflects an unqualified value and the second evaluation result information reflects an unqualified value, the second result information of the quality evaluation result information is obtained.

[0112] The first evaluation result information of the third battery-grade lithium carbonate is obtained from the first evaluation step device to confirm whether the first evaluation result information reflects a qualified value. The second evaluation result information of the third battery-grade lithium carbonate is obtained from the secondary evaluation step device to confirm whether the second evaluation result information reflects a qualified value. In the case that the first evaluation result information reflects an unqualified value and the second evaluation result information reflects an unqualified value, the second result information of the quality evaluation result information is obtained, i.e., the quality of the third battery-grade lithium carbonate is unqualified.

[0113] In the case that the first evaluation result information reflects an unqualified value and the second evaluation result information reflects an unqualified value, the second result information of the quality evaluation result information is obtained, which can enhance the reliability and accuracy of the evaluation result and reduce the errors and uncertainties that may exist due to a single evaluation step.

[0114] In a possible implementation, the battery-grade lithium carbonate production quality evaluation method further comprises:

[0115] In the case that the list of secondary evaluation step devices is not obtained, the evaluation request and the first evaluation result information are retained in the control device.

[0116] A local storage mechanism is provided on the control device, which can save the evaluation request and the first evaluation result information in a local database, a file system or a memory in the case that the list of secondary evaluation step devices is not obtained, so that even if the control device cannot connect to the secondary evaluation step device, i.e., the list of secondary evaluation step devices cannot be obtained, the information can still be accessed and managed on the control device.

[0117] In the case that the list of secondary evaluation step devices is not obtained, the evaluation request and the first evaluation result information are retained in the control device, which can effectively retain the evaluation request and the first evaluation result information, and ensure the integrity and availability of the data even in the case that the list of secondary evaluation step devices is not obtained.

[0118] It should be understood that the size of the serial number of each step in the above embodiments does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0119] Corresponding to the battery-grade lithium carbonate production quality evaluation method described in the above embodiments, the embodiments of the present application also provide a battery-grade lithium carbonate production quality evaluation system. Each unit of the system can implement each step of the battery-grade lithium carbonate production quality evaluation method. FIG. 8 shows a structural block diagram of the battery-grade lithium carbonate production quality evaluation system provided by the embodiments of the present application. For ease of illustration, only the parts related to the embodiments of the present application are shown.

[0120] Referring to FIG. 8, the battery-grade lithium carbonate production quality evaluation system includes:

[0121] The acquisition unit is configured to control the device to acquire an evaluation request. The evaluation request indicates that the battery-grade lithium carbonate to be evaluated needs to be evaluated.

[0122] The response unit is configured to control the device to respond to the evaluation request and control the battery-grade lithium carbonate production quality evaluation device to evaluate the battery-grade lithium carbonate to be evaluated, so as to obtain the quality evaluation result information.

[0123] It should be noted that the information interaction, execution process, etc. between the above-mentioned system / units, since based on the same concept as the method embodiments of the present application, the specific functions and the technical effects brought by it can be referred to the method embodiments part, which will not be repeated here.

Claims

1. A method for evaluating the quality of a battery-grade lithium carbonate production, characterized in that, The method is applied to a battery-grade lithium carbonate production quality evaluation device, the battery-grade lithium carbonate production quality evaluation device comprises a battery-grade lithium carbonate production quality evaluation apparatus and a control device, the battery-grade lithium carbonate production quality evaluation apparatus and the control device are electrically connected, and the method comprises the following steps: the control device acquires an evaluation request; wherein the evaluation request indicates that the battery-grade lithium carbonate to be evaluated needs to be evaluated; the control device controls the battery-grade lithium carbonate production quality evaluation apparatus to evaluate the battery-grade lithium carbonate to be evaluated in response to the evaluation request, so as to obtain quality evaluation result information.

2. The method for evaluating the quality of the battery-grade lithium carbonate production according to claim 1, wherein, The battery-grade lithium carbonate production quality evaluation apparatus comprises a first evaluation device and a second evaluation device, after the control device acquires the evaluation request, the method further comprises the following steps: in the case that the first evaluation device is in an evaluation state and the second evaluation device is in a to-be-evaluated state, the first evaluation device is defined as a first evaluation step device, and the second evaluation device is defined as a secondary evaluation step device; wherein an evaluation data channel is established between the first evaluation device and the second evaluation device, the first evaluation device is a device configured with different evaluation parameters from the second evaluation device, and the first evaluation device and the second evaluation device are respectively electrically connected with the control device; in the case that the secondary evaluation step device receives a first evaluation instruction sent by the control device, the secondary evaluation step device acquires evaluation information of the first evaluation step device through the evaluation data channel; wherein the first evaluation instruction is used to instruct the battery-grade lithium carbonate production quality evaluation apparatus to evaluate the quality of the first battery-grade lithium carbonate, and the evaluation information is used to reflect the evaluation situation of the first evaluation step device on the quality of the first battery-grade lithium carbonate; in the case that the evaluation information meets a preset evaluation termination condition, the secondary evaluation step device generates an evaluation termination signal of the first battery-grade lithium carbonate, sends the evaluation termination signal of the first battery-grade lithium carbonate to the first evaluation step device through the evaluation data channel, and generates an evaluation task signal for evaluating the quality of a second battery-grade lithium carbonate; wherein the evaluation termination signal is used to instruct the first evaluation step device and the secondary evaluation step device to stop establishing an evaluation task of the quality of the first battery-grade lithium carbonate between the first evaluation step device and the secondary evaluation step device and the control device, and the evaluation task signal is used to indicate to the control device that the battery-grade lithium carbonate production quality evaluation apparatus can evaluate the quality of the second battery-grade lithium carbonate.

3. The method for evaluating the quality of the battery-grade lithium carbonate production according to claim 2, wherein, After the control device acquires the evaluation request, the method further comprises: after acquiring the evaluation request, listening to a first operation; wherein the first operation is used to adjust the evaluation order of the first evaluation device and the second evaluation device; in the case where the first operation is not listened to, defining the first evaluation device as a first evaluation step device and the second evaluation device as a secondary evaluation step device to establish an evaluation process of first running the first evaluation device to perform an evaluation task and then running the second evaluation device to perform an evaluation task; in the case where the first operation is listened to, defining the second evaluation device as a first evaluation step device and the first evaluation device as a secondary evaluation step device to establish an evaluation process of first running the second evaluation device to perform an evaluation task and then running the first evaluation device to perform an evaluation task.

4. The method for evaluating the quality of the battery-grade lithium carbonate production according to claim 2, wherein, The method further comprises: in the case where the evaluation information does not satisfy the preset evaluation termination condition, the secondary evaluation step device generates an evaluation maintenance signal to make the secondary evaluation step device perform an evaluation task on the first battery-grade lithium carbonate quality after the first evaluation step device completes the evaluation task on the first battery-grade lithium carbonate quality.

5. The method for evaluating the quality of the battery-grade lithium carbonate production according to claim 2, wherein, After the first evaluation step device and the secondary evaluation step device stop establishing the evaluation task on the first battery-grade lithium carbonate quality with the control device, the method further comprises: in response to a second operation on the evaluation task signal, the first evaluation step device sends a first signal for quality evaluation of the second battery-grade lithium carbonate to the secondary evaluation step device through the evaluation data channel, so that the battery-grade lithium carbonate production quality evaluation device creates an evaluation process for quality evaluation of the second battery-grade lithium carbonate.

6. The method for evaluating the quality of the battery-grade lithium carbonate production according to claim 2, wherein, The response to the evaluation request, control the battery grade lithium carbonate production quality evaluation device to evaluate the battery grade lithium carbonate to be evaluated, to obtain quality evaluation result information, including: in the case of obtaining the evaluation request, determine whether the evaluation request is for the third battery grade lithium carbonate evaluation; wherein the third battery grade lithium carbonate is the battery grade lithium carbonate which has completed evaluation on the first evaluation step device and has not completed evaluation on the secondary evaluation step device; in the case of the evaluation request for the third battery grade lithium carbonate evaluation, obtain the secondary evaluation step device list; wherein the secondary evaluation step device list includes at least one secondary evaluation step device; obtain the device state of each secondary evaluation step device in the secondary evaluation step device list; determine the secondary evaluation step device in the secondary evaluation step device list which is in the executable evaluation request state as the target device; send the evaluation request and the first evaluation result information of the third battery grade lithium carbonate on the first evaluation step device to the target device; based on the evaluation request, control the secondary evaluation step device to evaluate the third battery grade lithium carbonate to obtain the second evaluation result information; based on the first evaluation result information and the second evaluation result information, comprehensive analysis is carried out to obtain the quality evaluation result information.

7. The method for evaluating the quality of the battery-grade lithium carbonate production according to claim 6, wherein, The device state of each secondary evaluation step device in the secondary evaluation step device list is obtained, including: obtaining the working state and device running state of each secondary evaluation step device in the secondary evaluation step device list; wherein the working state includes idle state or non-idle state, and the device running state includes fault state or normal running state; for each secondary evaluation step device, the device state is determined according to the working state and the device running state.

8. The method for evaluating the quality of the battery-grade lithium carbonate production according to claim 7, wherein, For each secondary evaluation step device, the device state is determined according to the working state and the device running state, including: in the case that the secondary evaluation step device is in idle state and normal running state at the same time, the device state of the secondary evaluation step device is determined as the executable evaluation request state; in the case that the secondary evaluation step device is in non-idle state, and / or, in the fault state, the device state of the secondary evaluation step device is determined as the non-executable evaluation request state.

9. The method for evaluating the quality of the battery-grade lithium carbonate production according to claim 7, wherein, After obtaining the device state of each of the secondary evaluation step devices in the list of secondary evaluation step devices, the method further comprises: if each of the secondary evaluation step devices is not in an executable evaluation request state, retaining the evaluation request and the first evaluation result information in the control device; wherein, after retaining the evaluation request and the first evaluation result information in the control device if each of the secondary evaluation step devices is not in an executable evaluation request state, the method further comprises: when a certain secondary evaluation step device in the list of secondary evaluation step devices changes from an unexecutable evaluation request state to an executable evaluation request state, sending the evaluation request and the first evaluation result information of the third battery-grade lithium carbonate by the first evaluation step device to the target device.

10. The method for evaluating the quality of the battery-grade lithium carbonate production according to claim 9, wherein, The comprehensive analysis based on the first evaluation result information and the second evaluation result information to obtain the quality evaluation result information comprises: in the case that the first evaluation result information reflects a qualified value and the second evaluation result information reflects a qualified value, obtaining first result information of the quality evaluation result information; wherein, the first result information is used to indicate that the quality of the third battery-grade lithium carbonate is qualified; in the case that the first evaluation result information reflects an unqualified value and the second evaluation result information reflects a qualified value, obtaining second result information of the quality evaluation result information; wherein, the second result information is used to indicate that the quality of the third battery-grade lithium carbonate is unqualified; in the case that the first evaluation result information reflects a qualified value and the second evaluation result information reflects an unqualified value, obtaining the second result information of the quality evaluation result information; and in the case that the first evaluation result information reflects an unqualified value and the second evaluation result information reflects an unqualified value, obtaining the second result information of the quality evaluation result information.

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