Power supply system of lithium extraction tank and lithium extraction control method

Abstract

Embodiments of the present disclosure disclose a power supply system of a lithium extraction tank and a lithium extraction control method. A specific embodiment of the method includes: a plurality of first power supplies for supplying power to a plurality of electrode plate pair groups included in the lithium extraction tank, the lithium extraction tank including a plurality of electrode plate pair groups arranged in sequence, each electrode plate pair group including at least one electrode plate pair, a first side of an electrode plate in the electrode plate pair being coated with a lithium intercalation material, a second side of the electrode plate being coated with a lithium deficient material, a positive electrode and a negative electrode of the first power supply being connected to corresponding electrode plates in the electrode plate pair group, respectively; a plurality of first circuit breakers for closing or opening the connection between the corresponding first power supply and the electrode plate pair group; and a first controller connected to the plurality of first circuit breakers, respectively, for controlling the closing or opening of the first circuit breakers. The embodiment can improve the state control of the electrode plate lithium extraction, and is conducive to improving the lithium extraction efficiency.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of power supply technology for lithium extraction cells using electrochemical deintercalation and extraction methods, specifically to the power supply system and lithium extraction control method for lithium extraction cells. Background Technology

[0002] Lithium extraction cells used in electrochemical deintercalation methods for lithium extraction from salt lakes typically consist of multiple deintercalation electrode plates connected in series or parallel, powered by a constant current or constant voltage power supply that alternates between forward and reverse directions. Inconsistencies in the electrochemical state of the deintercalation electrode plates, as well as variations in manufacturing or long-term operating conditions (such as uneven pressure of the liquid flowing in different chambers within the extraction cell), can lead to asynchronous lithium extraction processes. Electrode plates with poor electrochemical performance become a limiting factor in the effective operation of the series-connected lithium extraction cell, and may even prematurely terminate the entire electrochemical lithium extraction process. These poorly performing electrode plates exhibit relatively high internal resistance, which in turn affects the overall lithium extraction efficiency of the extraction cell. Summary of the Invention

[0003] The summary portion of this disclosure is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description portion. This summary portion is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] Some embodiments of this disclosure propose a power supply system and a lithium extraction control method for lithium extraction cells to solve the technical problems mentioned in the background section above.

[0005] In a first aspect, some embodiments of this disclosure provide a power supply system for a lithium extraction cell, comprising: a plurality of first power supplies for supplying power to an electrode plate pair group included in the lithium extraction cell, the lithium extraction cell including a plurality of electrode plate pairs arranged in sequence, the electrode plate pair group including at least one electrode plate pair, a first side of an electrode plate in the electrode plate pair being coated with a lithium-intercalated material, a second side of the electrode plate being coated with a lithium-deficient material, the positive and negative terminals of the first power supplies being respectively connected to corresponding electrode plates in the electrode plate pair group; a plurality of first circuit breakers for closing or disconnecting the connection between the corresponding first power supply and the electrode plate pair group; and a first controller connected to the plurality of first circuit breakers for controlling the closing or opening of the first circuit breakers.

[0006] Secondly, some embodiments of this disclosure provide a lithium extraction control method for a lithium extraction tank, applied to the power supply system described in the first aspect. The method includes: in response to an abnormal consistency information of the lithium extraction tank, determining at least one faulty electrode plate of the lithium extraction tank; determining at least one power supply to be processed corresponding to the at least one faulty electrode plate; querying the wiring information of the at least one power supply to be processed, and isolating the at least one faulty electrode plate based on the wiring information.

[0007] Thirdly, some embodiments of this disclosure provide a lithium extraction control device for a lithium extraction tank, applied to the power supply system described in the first aspect. The device includes: a fault electrode plate pair determination unit configured to determine at least one fault electrode plate of the lithium extraction tank in response to an abnormal consistency information of the lithium extraction tank; a power supply to be processed determination unit configured to determine at least one power supply to be processed corresponding to the at least one fault electrode plate; and an isolation unit configured to query the wiring information of the at least one power supply to be processed and isolate the at least one fault electrode plate based on the wiring information.

[0008] Based on this, the power supply system and lithium extraction control method of some embodiments of the lithium extraction cell disclosed herein, by supplying power to the electrode plate assembly through a first power source and controlling the closing or opening of a first circuit breaker through a first controller, thereby controlling the first power source to supply power to the electrode plate assembly, can improve the state control of lithium extraction on the electrode plates, which is beneficial to improving lithium extraction efficiency. Based on the power supply system of the lithium extraction cell, when the consistency information of the lithium extraction cell is abnormal, a faulty electrode plate can be identified, and the corresponding power source to be processed can be determined, thereby realizing operations such as isolating the faulty electrode plate, improving the safety of the lithium extraction process, and laying the foundation for subsequent precise maintenance. Attached Figure Description

[0009] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and elements are not necessarily drawn to scale.

[0010] Figure 1 This is a schematic diagram of the power supply system for a lithium extraction tank according to some embodiments of the present disclosure;

[0011] Figure 2 This is a power supply system structure diagram when the electrode plate pair group contains two (and this can be extrapolated to the case of multiple electrode plate pairs);

[0012] Figure 3 Is Figure 1 Based on the existing power supply system structure diagram with the addition of a second power source;

[0013] Figure 4 Is Figure 2 Based on the existing power supply system structure diagram with the addition of a second power source;

[0014] Figure 5 Is Figure 3 Based on the existing structure, a power supply system diagram for adding a second controller is provided.

[0015] Figure 6 Is Figure 4 Based on the existing structure, a power supply system diagram for adding a second controller is provided.

[0016] Figure 7 This is a flowchart of some embodiments of the lithium extraction control method for a lithium extraction cell according to the present disclosure;

[0017] Figure 8 These are flowcharts of some other embodiments of the lithium extraction control method for the lithium extraction cell according to this disclosure;

[0018] Figure 9 This is a schematic diagram of the structure of some embodiments of the lithium extraction control device for the lithium extraction cell according to the present disclosure;

[0019] Figure 10 This is a schematic diagram of the structure of an electronic device suitable for implementing some embodiments of the present disclosure. Detailed Implementation

[0020] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0021] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0022] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0023] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0024] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0025] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a schematic diagram of the power supply system for a lithium extraction cell according to some embodiments of the present disclosure.

[0027] The power supply system of this application includes a lithium extraction cell comprising multiple electrode plate pairs. Since both the positive and negative terminals of the power supply are connected to the electrode plates, each electrode plate pair group contains at least one electrode plate pair. Therefore, it can be considered that multiple electrode plate pairs combined together constitute the lithium extraction cell, and the number of electrode plate pairs in a group can be determined according to actual needs. Figure 1 In this lithium extraction cell, electrode plates (1), (2), (3), (4), (5), (6), ..., n may be included. In the prior art, the electrode plate pairs are typically powered by a single power supply to ensure consistent power supply to all electrode plate pairs within the group. For example, an external power supply may be converted to a 12-volt voltage, which is then converted to the lithium extraction cell's operating voltage (e.g., 0.3 volts) and connected to the power input terminals of multiple electrode plate pairs. This ensures that the multiple power supplies to the lithium extraction cell are identical, guaranteeing power supply consistency.

[0028] In industrial production, lithium extraction cells contain a large number of electrode plate pairs. If one of the electrode plates fails, the existing lithium extraction process requires disconnecting the power supply to the electrode plate pair containing the failed electrode plate in order to isolate the failed electrode plate. This will also isolate other working electrode plates in the same electrode plate pair, reducing the utilization rate of the electrode plates and the lithium extraction efficiency.

[0029] Therefore, the power supply system of the lithium extraction cell in this application includes multiple first power sources, multiple first circuit breakers corresponding to the multiple power sources, and a first controller connected to the multiple first circuit breakers. The multiple first power sources are used to supply power to the electrode plate pairs included in the lithium extraction cell. The lithium extraction cell of this application includes multiple electrode plate pairs arranged in sequence. Each electrode plate pair includes at least one electrode plate pair. The first side of each electrode plate is coated with a lithium-intercalated material, and the second side is coated with a lithium-deficient material. That is, the electrode plates of this application are bipolar electrode plates; the lithium-intercalated material can act as a positive electrode plate in the lithium extraction process, and the lithium-deficient material can act as a negative electrode plate. The positive and negative terminals of the first power sources are respectively connected to the corresponding electrode plates within the electrode plate pairs. This ensures the consistency of power supply to the multiple electrode plate pairs within the electrode plate pairs. Each of the multiple first circuit breakers is connected to the first controller and the corresponding first power source, and is used to close or disconnect the connection between the corresponding first power source and the electrode plate pair. The first controller is connected to multiple of the aforementioned first circuit breakers and is used to control the closing or opening of the aforementioned first circuit breakers.

[0030] The power supply system of the lithium extraction cell in some embodiments of this disclosure supplies power to the electrode plate assembly via a first power source, and controls the closing or opening of a first circuit breaker via a first controller, thereby controlling the first power source to supply power to the electrode plate assembly. This improves the state control of lithium extraction on the electrode plates and helps to improve lithium extraction efficiency. The first controller can also issue an alarm signal when the first circuit breaker is in the open state, or when an electrode plate malfunctions but the first circuit breaker is still in the closed state. Technicians can identify the corresponding faulty electrode plate based on the alarm signal and perform corresponding operations.

[0031] Figure 1 This is a power supply system structure diagram when the electrode plate pair group contains only one electrode plate pair. (Example:) Figure 1As shown, each electrode plate pair group contains only one electrode plate pair. The negative and positive terminals of the first power supply DC (1) are connected to electrode plate (1) and electrode plate (2), respectively. The negative and positive terminals of the first power supply DC (2) are connected to electrode plate (3) and electrode plate (4), respectively, ... The negative and positive terminals of the first power supply DC (n / 2) are connected to electrode plate (n-1) and electrode plate (n), respectively. The first side of the electrode plate is coated with a lithium-intercalated material (represented by dense dots), and the second side of the electrode plate is coated with a lithium-deficient material (represented by horizontal stripes). The first side of the electrode plate is placed in the anode side tank containing lithium-rich liquid, and the second side of the electrode plate is placed in the cathode side tank containing lithium-to-liquid liquid. The anode side tank and the cathode side tank are separated by an anion exchange membrane. The first circuit breaker Q (1) can be set between the first power supply DC (1) and electrode plate (1) or electrode plate (2). When the electrode plate needs to be de-energized due to a fault, the first circuit breaker Q(1) can be controlled by the first controller W to disconnect the connection between the first power supply DC(1) and the electrode plate (1) and the electrode plate (2). Similarly, Figure 1 It also includes a first power supply DC(2), a first power supply DC(3), ..., a first power supply DC(n / 2); a first circuit breaker Q(2), a first circuit breaker Q(3), ..., a first circuit breaker Q(n / 2). It should be noted that, for the purpose of illustrating the function of each component, the first power supply and the first circuit breaker are described as two independent devices. In practice, the first power supply and the corresponding first circuit breaker can also be implemented using a single device, depending on the actual needs.

[0032] Figure 2 This is a power supply system structure diagram for an electrode plate group containing two (and by extension, multiple electrode plate pairs). For example... Figure 2 As shown, the two electrode pairs in the electrode pair group are connected with the same polarity. Thus, the power supply consistency of multiple electrode pairs in the same electrode pair group is ensured by the first power supply DC1. In practice, since the multiple first power supplies DC(1), first power supply DC(2), first power supply DC(3)... first power supply DC(n / 2) are also connected with common cathode and common anode, the power supply consistency of all electrode pairs in the entire lithium extraction cell is ensured.

[0033] Figure 1In the process, when the first power source DC (1) supplies power to the electrode plates, the lithium-deficient material on the second side of electrode plate (1) and the lithium-intercalated material on the first side of electrode plate (2) participate in the lithium extraction process within the electric field generated by the first power source DC (1). The lithium-intercalated material on the first side of electrode plate (1) and the lithium-deficient material on the second side of electrode plate (2) are not within the electric field generated by the first power source DC (1). Therefore, the lithium extraction process on the first side of electrode plate (1) and the second side of electrode plate (2) is not affected by the electric field generated by the first power source DC (1), but is controlled by the electric field of another first power source DC to participate in the lithium extraction process. Therefore, Figure 1 The second side of electrode plate (2) and the first side of electrode plate (3) did not participate in the lithium extraction process.

[0034] therefore, Figure 1 and Figure 2 In practice, the lithium extraction efficiency of the electrode plates is not high to varying degrees. Therefore, the power supply system of this application may further include: multiple second power sources, each disposed between two adjacent first power sources. The positive terminal of each second power source is connected to the negative terminal of the first adjacent power source, and the negative terminal of the second power source is connected to the positive terminal of the second adjacent power source. The second power sources can supply power to adjacent positive and negative electrode plates between two adjacent electrode plates. The adjacent positive electrode plate is the electrode plate whose side is coated with a lithium-intercalated material and corresponds to the second power source, and the adjacent negative electrode plate is the electrode plate whose side is coated with a lithium-deficient material and corresponds to the second power source.

[0035] Thus, by adding a second power source between two adjacent first power sources, the adjacent positive and negative electrode plates can be further lithium-extracted under the action of the second power source, improving the lithium extraction efficiency. When a fault occurs in one of the electrode plates (e.g., uneven distribution of lithium-intercalated or under-lithiated material, or drop-off), it can be addressed through… Figure 1 and Figure 2 The first circuit breaker in the circuit performs corresponding operations on the faulty electrode, such as breaking the circuit.

[0036] Figure 3 In order to be in Figure 1 The power supply system structure diagram with the addition of a second power source is shown. Figure 3In this system, a first power supply DC (1) supplies power to electrode plates (1) and (2), and a first power supply DC (2) supplies power to electrode plates (3) and (4). Electrode plate (1) has two surfaces: a first side L11 and a second side L12. Electrode plate (2) has two surfaces: a first side L13 and a second side L14. Electrode plate (3) has two surfaces: a first side L21 and a second side L22. Electrode plate (4) has two surfaces: a first side L23 and a second side L24. When the first power supply DC (1) supplies power to electrode plates (1) and (2), since the second side L12 and the first side L13 are located within the electric field of the first power supply DC (1), the second side L12 and the first side L13 react with the lithium extraction solution and the lithium-rich solution, respectively. When the first power supply DC (2) supplies power to the electrode plates (3) and (4), since the second side L22 and the first side L23 are located within the electric field of the first power supply DC (1), the second side L22 and the first side L23 undergo lithium extraction reactions with the lithium-containing liquid to be extracted and the lithium-rich liquid, respectively. The first side L21 and the second side L14 are not within the electric fields of the first power supply DC (1) and the first power supply DC (2), but are within the electric field of the second power supply DC (12). The first side L21 is the adjacent positive electrode plate, and the second side L14 is the adjacent negative electrode plate, so they also participate in the lithium extraction reaction. Thus, by adding the second power supply DC (12), the first side L21 and the second side L14 also undergo lithium extraction reactions, thereby improving the lithium extraction efficiency. Here, "12" in DC (12) represents the second power supply added between the first power supply DC (1) and the first power supply DC (2).

[0037] Figure 4 In order to be in Figure 2 The power supply system structure diagram with the addition of a second power source is based on this. Because... Figure 4 The electrode plate pair group contains two electrode plate pairs. Therefore, the added second power supply DC (12) can only form an electric field between the second side L24 and the first side L31, so that the second side L24 and the first side L31 can carry out the lithium extraction reaction.

[0038] When a fault occurs in the electrode plate alignment, it leads to poor consistency in the lithium extraction cell. Therefore, the second power supply is also equipped with a corresponding second circuit breaker, such as... Figure 3 and Figure 4 Q(12) in the middle. The second circuit breaker is connected to the first controller and the corresponding second power supply respectively, and is used to close or disconnect the connection between the corresponding second power supply and the adjacent positive electrode plate and the adjacent negative electrode plate.

[0039] The power supply system of this application may further include a second controller, connected to the electrode plates in the lithium extraction tank, for detecting voltage signals on the electrode plates and determining consistency information of the lithium extraction tank based on the voltage signals. This consistency information characterizes the consistency of the lithium extraction state of multiple electrode plates in the lithium extraction tank, and is either normal or abnormal. The second controller may first detect first operating state information of each electrode plate, then determine second operating state information of the lithium extraction tank based on the first operating state information of multiple electrode plates, and finally determine the consistency of the lithium extraction tank through the second operating state information. The first controller may, in response to receiving abnormal consistency information from the second controller, identify at least one faulty electrode pair and control at least one target circuit breaker corresponding to the at least one faulty electrode plate to disconnect. Figure 5 In order to be in Figure 3 Based on the existing structure, a power supply system diagram for adding a second controller is provided. Figure 6 In order to be in Figure 4 The power supply system structure diagram for adding a second controller is based on this.

[0040] Continue to refer to Figure 7 , Figure 7 A flow 700 of some embodiments of a lithium extraction control method for a lithium extraction tank according to the present disclosure is shown. The lithium extraction control method for the lithium extraction tank includes the following steps:

[0041] Step 701: In response to the abnormal consistency information of the lithium extraction cell, at least one faulty electrode plate of the lithium extraction cell is identified.

[0042] In some embodiments, the execution subject of the lithium extraction control method of the lithium extraction tank (e.g., Figure 1-6 The first controller W in the middle) and Figure 1-6 The first and second circuit breakers are connected, allowing control over their closing and opening. When the consistency information from the second controller for the lithium extraction tank is normal, it indicates that the electrode plates in the lithium extraction tank are all working normally, and the execution unit can maintain the closed state of the first and second circuit breakers. When the consistency information from the second controller for the lithium extraction tank is abnormal, it indicates that there is a faulty electrode plate in the lithium extraction tank, and the execution unit needs to determine which electrode plate pairs in the lithium extraction tank are faulty. It should be noted that since the electrode plates in the lithium extraction tank of this application are all identical bipolar electrode plates, during consistency testing, the faulty electrode plate can be accurately determined by the point on the electrode plate or the potential difference between adjacent electrode plates. That is, since the electrode plates in the lithium extraction tank of this application are all identical, the faulty electrode plate can be accurately determined by the point.

[0043] Step 702: Determine at least one power supply to be processed corresponding to at least one faulty electrode plate.

[0044] Once the faulty electrode plate is identified, the executing entity can further determine at least one power supply to be processed corresponding to the faulty electrode plate. The power supply to be processed can be a first power supply, or a first power supply and a second power supply, depending on the corresponding power supply system structure diagram.

[0045] Step 703: Query the wiring information of at least one power supply to be processed, and isolate at least one faulty electrode board based on the wiring information.

[0046] When adjustments to the lithium extraction process or replacement of electrode plates are required, the actuator can isolate the faulty electrode plate and issue an alarm signal based on the wiring information of the power supply to be processed. Afterwards, the faulty electrode plate can be replaced or repaired.

[0047] The lithium extraction control method of some embodiments of this disclosure, based on the power supply system of the lithium extraction cell described above, can identify the faulty electrode plate and the corresponding power supply to be processed when the consistency information of the lithium extraction cell is abnormal, thereby realizing operations such as isolating the faulty electrode plate and improving the safety of the lithium extraction process.

[0048] Continue to refer to Figure 8 , Figure 8 A flow chart 800 of some embodiments of a lithium extraction control method for a lithium extraction tank according to the present disclosure is shown. The lithium extraction control method for the lithium extraction tank includes the following steps:

[0049] Step 801: In response to the abnormal consistency information of the lithium extraction cell, at least one faulty electrode plate identifier is determined by the working status information of the electrode plate with abnormal status information.

[0050] The consistency information of the lithium extraction tank in this application includes electrode plate working status information. This electrode plate working status information characterizes the working status of each corresponding electrode plate and may include an electrode plate identifier and status information. The electrode plate identifier is used to mark the electrode plate and can be numbers, characters, or a combination of numbers and characters, depending on actual needs. The status information includes normal or abnormal. When a faulty electrode plate exists in the lithium extraction tank, the executing entity (e.g., Figure 1-6 The first controller (W) can identify at least one faulty electrode plate with an abnormal status information.

[0051] Step 802: Identify at least one faulty electrode plate by identifying at least one faulty electrode plate as described above.

[0052] Once the faulty electrode plate identifier is determined, the executing entity can identify at least one faulty electrode plate through the faulty electrode plate identifier.

[0053] In some optional implementations of certain embodiments, determining at least one faulty electrode plate by means of at least one faulty electrode plate identifier may include the following steps:

[0054] In the first step, in response to each of the plurality of electrode plate pairs comprising one electrode plate pair, at least one current information corresponding to the at least one faulty electrode plate identifier is obtained.

[0055] During lithium extraction, due to uneven distribution of lithium-intercalated or under-lithiated materials on the electrode plates, or the loss of materials, the current information of faulty electrode plates differs from that of normally functioning electrode plates. Therefore, the executing unit can first obtain the current information corresponding to the identifier of each faulty electrode plate.

[0056] The second step is to determine at least one faulty electrode plate based on at least one of the aforementioned current information.

[0057] The actuator can compare the current information to identify the faulty electrode plate.

[0058] In some optional implementations of some embodiments, obtaining at least one current information corresponding to the at least one faulty electrode plate identifier may include: for the faulty electrode plate identifier among the at least one faulty electrode plate identifiers, determining the initial power supply corresponding to the faulty electrode plate identifier, and obtaining the current information of the initial power supply.

[0059] As described above, the electrode plates are powered by corresponding power sources. The executing entity can determine the initial power source supplying the faulty electrode plate through the faulty electrode plate identifier, and then obtain the current information of the initial power source; this current information is then the current information of the faulty electrode plate.

[0060] In some optional implementations of certain embodiments, determining the initial power supply corresponding to the faulty electrode pair identifier may include the following steps:

[0061] The first step is to connect the faulty electrode plate corresponding to the faulty electrode plate identifier to the first power supply and mark the first power supply as the initial power supply.

[0062] When the electrode plate is powered only by the first power source, the first power source corresponding to the faulty electrode plate can be marked as the initial power source.

[0063] The second step involves connecting the fault electrode plates corresponding to the aforementioned fault electrode plate identifiers to the first power supply and the second power supply, respectively, and marking the first power supply and the second power supply as the initial power supply.

[0064] When the electrode pairs are simultaneously powered by the first power source and the second power source, there is also a corresponding second power source between the electrode pairs. Therefore, it is necessary to comprehensively consider the current information of the first power source and the second power source, and the executing entity can mark the first power source and the second power source as the initial power source, respectively.

[0065] In some optional implementations of some embodiments, determining the at least one faulty electrode plate based on the at least one current information may include: determining the at least one faulty electrode plate using the current information of the first power supply and the second power supply in response to the initial power supply corresponding to the first power supply and the second power supply; otherwise, determining the at least one faulty electrode plate using the first power supply.

[0066] When the initial power source includes both the first power source and the second power source (corresponding to...) Figure 3 , Figure 4 , Figure 5 and Figure 6 In cases involving both a first power supply and a second power supply, the faulty electrode plate can be further determined by the current of the second power supply. Therefore, the executing entity needs to comprehensively determine the faulty electrode plate using both the current information from the first power supply and the current information from each of the second power supplies. Otherwise, when the initial power supply consists of only the first power supply (corresponding to...) Figure 1 and Figure 2 In the case of only the first power supply, the faulty electrode plate can be directly identified by the current information passing through the first power supply.

[0067] Each electrode plate has two sides, and each side is susceptible to failure. The following discussion focuses on the second electrode plate (from...). Figure 3 Taking the faulty electrode plate as an example, the electrode plate (3) and electrode plate (4) in the middle are analyzed separately.

[0068] In some optional implementations of certain embodiments, determining the at least one faulty electrode plate using current information from a first power source and two adjacent second power sources may include:

[0069] The first step is to mark the side of the fault electrode plate closest to the first power source as the fault surface in response to the current information of the first power source being less than the first current threshold.

[0070] This application can identify faulty electrode plates during conformity testing. Furthermore, the executing entity can determine which side of the faulty electrode plate is faulty based on the power supply corresponding to that faulty electrode plate. When the current information of the first power supply is less than a first current threshold, the executing entity can mark the side of the faulty electrode plate closest to the first power supply as the faulty surface. For example, Figure 3In the process, the electrode plate (3) is identified as a faulty electrode plate through consistency detection. There are two power supplies associated with the electrode plate (3): a first power supply DC (2) and a second power supply DC (12). Therefore, in the two circuits formed by the first power supply DC (2) and the second power supply DC (12), the current of at least one circuit will be different from the current formed by the other power supplies due to the electrode plate (3). When the current information of the first power supply DC (2) is less than the first current threshold, the second side L22 of the electrode plate (3) can be identified as the faulty surface.

[0071] The second step is to mark the side of the fault electrode plate closest to the second power source as the fault surface in response to the current information of the second power source being less than the first current threshold.

[0072] For the same reasons as those for judging electrode plate (3) above, when the current information of the second power supply is less than the first current threshold, the side of the fault electrode plate closest to the second power supply will be marked as the fault surface. For example, when the current information of the second power supply DC (12) is less than the first current threshold, the first side L21 of the electrode plate (3) can be determined as the fault surface.

[0073] Step 803: Determine at least one power supply to be processed corresponding to at least one faulty electrode plate pair.

[0074] The content of step 803 is the same as that of step 702, and will not be repeated here.

[0075] Step 804: Query the wiring information of at least one power supply to be processed, and isolate at least one faulty electrode board based on the wiring information.

[0076] In some optional implementations of certain embodiments, isolating the at least one faulty electrode pair based on the aforementioned wiring information may include:

[0077] The first step is to determine at least one target circuit breaker corresponding to at least one power source to be processed based on the above wiring information.

[0078] The wiring information described above in this application can be used to characterize the connection relationship between the power supply and the electrode plate pair, that is, which power supply supplies which electrode plate pair. Subsequently, the executing entity can determine the target circuit breaker corresponding to the power supply to be processed using the wiring information.

[0079] The second step is to isolate the at least one faulty electrode plate by using the power supply status information of at least one target circuit breaker and the lithium extraction tank.

[0080] Lithium extraction tanks can operate in multiple states, each with different power supply characteristics. Therefore, the system needs to use the power supply status information of the target circuit breaker and the lithium extraction tank to isolate faulty electrode plates, minimizing potential safety risks such as arcing or power device impacts during isolation.

[0081] In some optional implementations of certain embodiments, isolating the at least one faulty electrode plate through the power supply status information of the at least one target circuit breaker and the lithium extraction tank may include:

[0082] The first step is to obtain the power supply status information of the lithium extraction cell.

[0083] The executing entity can first obtain the power supply status information of the lithium extraction cell. This power supply status information can include any of the following: constant current power supply, constant voltage power supply, or multi-constant current segment power supply.

[0084] The second step is to isolate the at least one faulty electrode plate based on the above-mentioned target circuit breaker and power supply status information.

[0085] The executing entity can select an appropriate method to isolate the faulty electrode plate based on the power supply status information of the target circuit breaker and the lithium extraction tank.

[0086] In some optional implementations of some embodiments, isolating the at least one faulty electrode plate based on the at least one target circuit breaker and power supply status information may include: in response to the power supply status information being constant current powered, reducing the constant current power supply current of the at least one faulty electrode plate to a set current, and then isolating the at least one faulty electrode plate through the at least one target circuit breaker.

[0087] When the power supply status information of the lithium extraction tank is constant current power supply, the execution body can first reduce the constant current power supply current of the faulty electrode plate to the set current, and then isolate the at least one faulty electrode plate through the at least one target circuit breaker.

[0088] In some optional implementations of some embodiments, isolating the at least one faulty electrode plate based on the at least one target circuit breaker and power supply status information may include: in response to the power supply status information being a constant voltage power supply, reducing the constant voltage power supply voltage of the at least one faulty electrode plate to a set voltage, and then isolating the at least one faulty electrode plate through the at least one target circuit breaker.

[0089] When the power supply status information of the lithium extraction tank is constant voltage power supply, the execution body can reduce the constant voltage power supply voltage of at least one faulty electrode plate to a set voltage, and then isolate the at least one faulty electrode plate through at least one target circuit breaker.

[0090] In some optional implementations of certain embodiments, isolating the at least one faulty electrode plate based on the at least one target circuit breaker and power supply status information may include: responding to the power supply status information for multi-constant current segment power supply, when the current of the current constant current segment of the multi-constant current segment power supply is greater than a set current, reducing the current of the at least one faulty electrode plate to the set current, and then isolating the at least one faulty electrode plate through the at least one target circuit breaker; otherwise, directly isolating the at least one faulty electrode plate through the at least one target circuit breaker.

[0091] When the lithium extraction tank's power supply status is multi-constant current segment power supply, the constant current decreases sequentially from high to low. If the current supplied by the current constant current segment is greater than the set current, it indicates that the current value of the current constant current is too large, and direct isolation may generate factors affecting safety such as electric arcs. In this case, the executing entity can reduce the current of at least one faulty electrode plate to the set current and then isolate the at least one faulty electrode plate through at least one target circuit breaker. Otherwise, if the current supplied by the current constant current segment is less than or equal to the set current, it indicates that the current value of the current constant current is small enough that direct isolation will not generate factors affecting safety such as electric arcs. The executing entity can directly isolate the at least one faulty electrode plate through at least one target circuit breaker.

[0092] Further reference Figure 9 As an implementation of the methods shown in the above figures, this disclosure provides some embodiments of a lithium extraction control device for a lithium extraction tank. These device embodiments are similar to... Figure 7 Corresponding to the method embodiments shown, the device can be specifically applied to various electronic devices.

[0093] like Figure 9 As shown, the lithium extraction control device 900 of the lithium extraction cell in some embodiments includes: a faulty electrode plate pair determination unit 901, a power supply to be processed determination unit 902, and an isolation unit 903. The faulty electrode plate pair determination unit 901 is configured to determine at least one faulty electrode plate of the lithium extraction cell in response to an abnormal consistency information of the lithium extraction cell; the power supply to be processed determination unit 902 is configured to determine at least one power supply to be processed corresponding to the at least one faulty electrode plate; and the isolation unit 903 is configured to query the wiring information of the at least one power supply to be processed and isolate the at least one faulty electrode plate based on the wiring information.

[0094] In some optional implementations of the embodiments, the aforementioned consistency information includes electrode pair working status information, which includes electrode pair identifiers and status information, wherein the status information includes normal or abnormal; and the aforementioned faulty electrode pair determination unit 901 includes: a faulty electrode pair identifier determination subunit (not shown in the figure) and a faulty electrode pair determination subunit (not shown in the figure). The faulty electrode pair identifier determination subunit is configured to determine at least one faulty electrode pair identifier based on the electrode pair working status information where the status information is abnormal; the faulty electrode pair determination subunit is configured to determine at least one faulty electrode pair based on the at least one faulty electrode pair identifier.

[0095] In some optional implementations of the embodiments, the fault electrode pair determination subunit includes: a current information acquisition module (not shown in the figure) and a fault electrode pair determination module (not shown in the figure). The current information acquisition module is configured to acquire at least one current information corresponding to the at least one fault electrode pair identifier in response to each of the plurality of electrode pair groups containing one electrode pair; the fault electrode pair determination module is configured to determine the at least one fault electrode pair based on the at least one current information.

[0096] In some optional implementations of the embodiments, the current information acquisition module includes a current information submodule (not shown in the figure), configured to determine the initial power supply corresponding to the fault electrode plate identifier in the at least one fault electrode plate identifier, and acquire the current information of the initial power supply.

[0097] In some optional implementations of the embodiments, the current information submodule may include: a first initial power supply marking module (not shown in the figure) and a second initial power supply marking module (not shown in the figure). The first initial power supply marking module is configured to mark the first power supply as an initial power supply in response to the connection of the fault electrode plate corresponding to the fault electrode plate identifier to the first power supply and the second power supply, respectively, in response to the connection of the fault electrode plate corresponding to the fault electrode plate identifier to the first power supply and the second power supply, respectively, to mark the first power supply and the second power supply as initial power supplies.

[0098] In some optional implementations of the embodiments, the fault electrode pair determination module includes: a fault electrode pair determination submodule (not shown in the figure), configured to determine at least one fault electrode pair by means of the current information of the first power supply and the second power supply in response to the initial power supply corresponding to the first power supply and the second power supply; otherwise, to determine at least one fault electrode pair by means of the first power supply.

[0099] In some optional implementations of the embodiments, the fault electrode plate determination submodule includes: a first fault surface determination module (not shown in the figure) and a second fault surface determination module (not shown in the figure). The first fault surface determination module is configured to mark the side of the fault electrode plate closest to the first power source as a fault surface in response to the main current information of the first power source being less than a first current threshold; the second fault surface determination module is configured to mark the side of the fault electrode plate closest to the second power source as a fault surface in response to the current information of the second power source being less than the first current threshold.

[0100] In some optional implementations of the embodiments, the wiring information is used to characterize the connection relationship between the power supply and the electrode plate pair; and the isolation unit includes: a target circuit breaker determination subunit (not shown in the figure) and a faulty electrode plate pair isolation subunit (not shown in the figure). The target circuit breaker determination subunit is configured to determine at least one target circuit breaker corresponding to the at least one power supply to be processed through the wiring information; the faulty electrode plate pair isolation subunit is configured to isolate the at least one faulty electrode plate pair through the power supply status information of the at least one target circuit breaker and the lithium extraction tank.

[0101] In some optional implementations of the embodiments, the fault electrode plate isolation subunit includes: a power supply status information acquisition module (not shown in the figure) and a fault electrode plate isolation module (not shown in the figure). The power supply status information acquisition module is configured to acquire the power supply status information of the lithium extraction cell, which includes any one of the following: constant current power supply, constant voltage power supply, or multi-constant current segment power supply. The fault electrode plate isolation module is configured to isolate at least one fault electrode plate based on the at least one target circuit breaker and the power supply status information.

[0102] In some optional implementations of the embodiments, the fault electrode plate isolation module includes: a first isolation submodule (not shown in the figure), configured to provide constant current power in response to the power supply status information, reduce the current of the constant current power supply to the at least one fault electrode plate to a set current, and then isolate the at least one fault electrode plate through the at least one target circuit breaker.

[0103] In some optional implementations of the embodiments, the fault electrode plate isolation module includes: a second isolation submodule (not shown in the figure), configured to, in response to the power supply status information, reduce the voltage of the constant voltage power supply of the at least one fault electrode plate to a set voltage, and then isolate the at least one fault electrode plate through the at least one target circuit breaker.

[0104] In some optional implementations of the embodiments, the above-mentioned fault electrode plate pair isolation module includes: a third isolation submodule (not shown in the figure), configured to supply power to multiple constant current segments in response to the above-mentioned power supply status information, and when the current of the current constant current segment of the multiple constant current segment power supply is greater than a set current, reduce the current of the at least one fault electrode plate pair to the set current, and then isolate the at least one fault electrode plate through the at least one target circuit breaker; otherwise, directly isolate the at least one fault electrode plate through the at least one target circuit breaker.

[0105] It is understandable that the units described in the device 900 are related to the reference. Figure 7 The steps in the described method correspond to each other. Therefore, the operations, features, and beneficial effects described above for the method also apply to the device 900 and the units contained therein, and will not be repeated here.

[0106] like Figure 10 As shown, the electronic device 1000 may include a processing unit (e.g., a central processing unit, a graphics processor, etc.) 1001, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1008 into a random access memory (RAM) 1003. The RAM 1003 also stores various programs and data required for the operation of the electronic device 1000. The processing unit 1001, ROM 1002, and RAM 1003 are interconnected via a bus 1004. An input / output (I / O) interface 1005 is also connected to the bus 1004.

[0107] Typically, the following devices can be connected to the I / O interface 1005: input devices 1006 including, for example, a touchscreen, touchpad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; output devices 1007 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1008 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. Communication device 1009 allows electronic device 1000 to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 10 An electronic device 1000 with various devices is shown; however, it should be understood that it is not required to implement or possess all of the devices shown. More or fewer devices may be implemented or possessed alternatively. Figure 10 Each box shown can represent a device or multiple devices as needed.

[0108] In particular, according to some embodiments of this disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, some embodiments of this disclosure include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication device 1009, or installed from storage device 1008, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of some embodiments of this disclosure.

[0109] It should be noted that, in some embodiments of this disclosure, the computer-readable medium described above may be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. A computer-readable storage medium may be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In some embodiments of this disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In some embodiments of this disclosure, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium can be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wires, optical fibers, RF (radio frequency), etc., or any suitable combination thereof.

[0110] In some implementations, clients and servers can communicate using any currently known or future-developed network protocol such as HTTP (Hypertext Transfer Protocol) and can interconnect with digital data communication (e.g., communication networks) of any form or medium. Examples of communication networks include local area networks (“LANs”), wide area networks (“WANs”), the Internet (e.g., the Internet of Things), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future-developed networks.

[0111] The aforementioned computer-readable medium may be included in the aforementioned electronic device; or it may exist independently and not assembled into the electronic device. The aforementioned computer-readable medium carries one or more programs that, when executed by the electronic device, cause the electronic device to: determine at least one faulty electrode plate of the lithium extraction tank in response to an abnormal consistency information of the lithium extraction tank; determine at least one power supply to be processed corresponding to the at least one faulty electrode plate; query the wiring information of the at least one power supply to be processed; and isolate the at least one faulty electrode plate based on the wiring information.

[0112] Computer program code for performing operations of some embodiments of this disclosure can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0113] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0114] The units described in some embodiments of this disclosure can be implemented in software or hardware. The described units can also be housed in a processor; for example, a processor may be described as including a fault electrode plate pair determination unit, a power supply determination unit, and an isolation unit. The names of these units do not necessarily limit the specific unit; for example, an isolation unit may also be described as "a unit for isolating fault electrode plates."

[0115] The functions described above in this document can be performed, at least in part, by one or more hardware logic components. For example, exemplary types of hardware logic components that can be used, without limitation, include: Field Programmable Gate Arrays (FPGAs), Application-Specific Integrated Circuits (ASICs), Application Standard Products (ASSPs), System-on-Chip (SoCs), Complex Programmable Logic Devices (CPLDs), and so on.

[0116] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A power supply system for a lithium extraction tank, comprising: Multiple first power sources are provided for supplying power to the electrode plate pairs included in the lithium extraction cell. The lithium extraction cell includes multiple electrode plate pairs arranged in sequence. Each electrode plate pair includes at least one electrode plate pair. The first side of the electrode plate in the electrode plate pair is coated with a lithium-intercalated material, and the second side of the electrode plate is coated with a lithium-deficient material. The positive and negative terminals of the first power sources are respectively connected to the corresponding electrode plates in the electrode plate pairs. Multiple first circuit breakers are used to close or disconnect the connection between the corresponding first power supply and the electrode plate pair; A first controller is connected to multiple first circuit breakers and is used to control the closing or opening of the first circuit breakers.

2. The power supply system according to claim 1, wherein, The power supply system includes: Multiple second power supplies are provided, with each second power supply positioned between two adjacent first power supplies. The positive terminal of the second power supply is connected to the negative terminal of the first adjacent power supply among the two adjacent first power supplies, and the negative terminal of the second power supply is connected to the positive terminal of the second adjacent power supply among the two adjacent first power supplies.

3. The power supply system according to claim 2, wherein, The second power supply is used to supply power to adjacent positive electrode plates and adjacent negative electrode plates between two adjacent electrode plates, wherein the adjacent positive electrode plate is the electrode plate corresponding to the second power supply on the side of the two adjacent electrode plates coated with a lithium-intercalated material, and the adjacent negative electrode plate is the electrode plate corresponding to the second power supply on the side of the two adjacent electrode plates coated with a lithium-deficient material.

4. The power supply system according to claim 3, wherein, The power supply system includes: Multiple second circuit breakers, connected to the first controller, are used to close or disconnect the connection between the corresponding second power supply and the adjacent positive electrode plate and the adjacent negative electrode plate.

5. The power supply system according to claim 4, wherein, The power supply system includes: The second controller is connected to the electrode plates in the lithium extraction tank and is used to detect the voltage signal on the electrode plates and determine the consistency information of the lithium extraction tank based on the voltage signal. The consistency information is used to characterize the consistency of the lithium extraction state of multiple electrode plates in the lithium extraction tank, and the consistency information is normal or abnormal.

6. The power supply system according to claim 5, wherein, The first controller is configured to, in response to receiving a consistency information from the second controller indicating an anomaly, identify at least one faulty electrode plate and control at least one target circuit breaker corresponding to the at least one faulty electrode plate to disconnect.

7. A lithium extraction control method for a lithium extraction tank, applied to the power supply system of claim 6, comprising: In response to an abnormal consistency information of the lithium extraction cell, at least one faulty electrode plate of the lithium extraction cell is identified. Identify at least one power source to be processed corresponding to the at least one faulty electrode plate; Query the wiring information of the at least one power supply to be processed, and isolate the at least one faulty electrode plate based on the wiring information.

8. The method according to claim 7, wherein, The consistency information includes electrode plate working status information, which includes electrode plate identification and status information, including normal or abnormal. as well as The step of determining at least one faulty electrode plate in the lithium extraction cell includes: At least one faulty electrode plate identifier is determined by the abnormal electrode plate operating status information. At least one faulty electrode plate is identified by the at least one faulty electrode plate identifier.

9. The method according to claim 8, wherein, The step of identifying at least one faulty electrode plate through the at least one faulty electrode plate identifier includes: In response to each of the plurality of electrode plate pairs comprising an electrode plate pair, at least one current information corresponding to the at least one faulty electrode plate identifier is obtained; The at least one faulty electrode plate is determined based on the at least one current information.

10. The method according to claim 9, wherein, The step of obtaining at least one current information corresponding to the at least one faulty electrode plate identifier includes: For each fault electrode plate identifier, the initial power supply corresponding to the fault electrode plate identifier is determined, and the current information of the initial power supply is obtained.

11. The method according to claim 10, wherein, Determining the initial power supply corresponding to the faulty electrode plate identifier includes: In response to the fault electrode plate corresponding to the fault electrode plate identifier being connected to the first power supply, the first power supply is marked as the initial power supply.

12. The method according to claim 10, wherein, Determining the initial power supply corresponding to the faulty electrode plate identifier includes: In response to the fault electrode plate corresponding to the fault electrode plate identifier being connected to the first power supply and the second power supply respectively, the first power supply and the second power supply are respectively marked as the initial power supply.

13. The method according to claim 11, wherein, Determining the at least one faulty electrode plate based on the at least one current information includes: In response to the initial power supply corresponding to the first power supply, the at least one faulty electrode plate is determined by the current information of the first power supply.

14. The method according to claim 12, wherein, Determining the at least one faulty electrode plate based on the at least one current information includes: In response to the initial power supply corresponding to the first power supply and the second power supply, the at least one faulty electrode plate is determined by the current information of the first power supply and the second power supply.

15. The method according to claim 14, wherein, Determining the at least one faulty electrode plate using current information from the first and second power supplies includes: In response to the current information of the first power supply being less than the first current threshold, the side of the fault electrode plate closest to the first power supply will be marked as the fault surface. In response to the current information of the second power supply being less than the first current threshold, the side of the fault electrode plate closest to the second power supply will be marked as the fault surface.

16. The method according to claim 7, wherein, The wiring information is used to characterize the connection relationship between the power supply and the electrode plate pair; and The isolation of the at least one faulty electrode plate based on the wiring information includes: The wiring information is used to determine at least one target circuit breaker corresponding to the at least one power supply to be processed. The at least one faulty electrode plate is isolated by the power supply status information of the at least one target circuit breaker and the lithium extraction tank.

17. The method according to claim 16, wherein, The method of isolating the at least one faulty electrode plate through the power supply status information of the at least one target circuit breaker and the lithium extraction tank includes: Obtain the power supply status information of the lithium extraction cell, wherein the power supply status information includes any one of the following: constant current power supply, constant voltage power supply; Isolate the at least one faulty electrode plate based on the at least one target circuit breaker and power supply status information.

18. The method according to claim 16, wherein, The power supply status information is multi-constant current segment power supply, which is a power supply method in which the constant current decreases sequentially from high to low. The method of isolating the at least one faulty electrode plate through the power supply status information of the at least one target circuit breaker and the lithium extraction tank includes: when the current of the current constant current segment of the multi-constant current segment power supply is greater than the set current, reducing the current of the at least one faulty electrode plate to the set current, and then isolating the at least one faulty electrode plate through the at least one target circuit breaker; otherwise, directly isolating the at least one faulty electrode plate through the at least one target circuit breaker.

19. A lithium extraction control device for a lithium extraction tank, applied to the power supply system of claim 6, comprising: The faulty electrode plate determination unit is configured to determine at least one faulty electrode plate of the lithium extraction cell in response to an abnormal consistency information of the lithium extraction cell. The power supply determination unit is configured to determine at least one power supply to be processed corresponding to the at least one faulty electrode plate; An isolation unit is configured to query the wiring information of the at least one power supply to be processed and isolate the at least one faulty electrode plate based on the wiring information.

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