Battery recycling method, device and equipment and storage medium

Abstract

The invention discloses a battery recycling method, device and equipment and a storage medium, and belongs to the technical field of batteries. The battery recycling method comprises the following steps: acquiring a plurality of recycled batteries, and recording basic information of the plurality of recycled batteries; performing primary detection on the plurality of recycled batteries, and determining actual electrical parameters of the plurality of recycled batteries according to a first detection result of the primary detection; determining a to-be-repaired battery in the plurality of recycled batteries according to the basic information and the actual electrical parameters; and repairing the to-be-repaired battery according to the basic information and the actual electrical parameters corresponding to the to-be-repaired battery. According to the method, the multiple recycled batteries are screened to determine the to-be-repaired batteries with the repairing value, the problems of environmental pollution and energy consumption possibly occurring in the simple mechanical disassembling process can be avoided, in addition, the residual electrochemical performance in the multiple recycled batteries is fully utilized, and the resource utilization rate is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, and in particular to a battery recycling method, device, equipment and storage medium. BACKGROUND

[0002] Recycling and reusing batteries not only helps to protect the environment and avoid harmful chemicals and heavy metals in batteries from entering the ecological cycle, but also realizes the recycling of resources and promotes sustainable development.

[0003] In related technologies, the main way of battery recycling and reuse is to collect, classify, disassemble and reuse waste batteries, so that useful components such as metals, plastics and electrolyte can be reused.

[0004] However, in the above method, although part of the useful materials can be recycled, there are still many problems. On the one hand, the disassembly process of the battery is complex, which will produce a large amount of wastewater, waste gas and waste residue, and still has certain environmental pollution and energy consumption problems. On the other hand, pure mechanical disassembly wastes the remaining electrochemical performance of the battery. SUMMARY

[0005] The present application provides a battery recycling method, device, equipment and storage medium to solve the technical problems existing in related technologies. Specifically, the following technical solutions are included.

[0006] In a first aspect, the present application provides a battery recycling method, the method comprising: obtaining a plurality of recycled batteries, recording the basic information of a plurality of recycled batteries; performing a first detection on the recycled batteries, determining the actual electrical parameters of the recycled batteries according to the first detection result of the first detection; determining the to-be-repaired batteries in the plurality of recycled batteries according to the basic information of the recycled batteries and the actual electrical parameters; repairing the to-be-repaired batteries according to the basic information and the actual electrical parameters corresponding to the to-be-repaired batteries.

[0007] In some possible implementation manners, the basic information of the recycled batteries includes the standard electrical parameters of the recycled batteries, and the determination of the to-be-repaired batteries in the plurality of recycled batteries according to the basic information of the recycled batteries and the actual electrical parameters comprises: determining the attenuation value of the recycled batteries according to the standard electrical parameters and the actual electrical parameters, the attenuation value being used to indicate the difference between the actual electrical parameters and the corresponding standard electrical parameters; determining the to-be-repaired batteries according to the attenuation value.

[0008] In some possible implementation manners, the actual electrical parameter of the recycled battery includes an actual open circuit voltage and an actual internal resistance of the recycled battery, the standard electrical parameter includes a standard open circuit voltage and a standard internal resistance of the recycled battery, and the attenuation value includes a first attenuation value indicating a difference between the actual open circuit voltage and the standard open circuit voltage, and the attenuation value further includes a second attenuation value indicating a difference between the actual internal resistance and the standard internal resistance.

[0009] In some possible implementation manners, the determining the battery to be repaired according to the attenuation value includes: determining, as the battery to be repaired, a recycled battery in the recycled batteries, for which the first attenuation value is greater than a first attenuation threshold and the second attenuation value is less than a second attenuation threshold.

[0010] In some possible implementation manners, the basic information of the recycled battery includes failure information of the recycled battery, and the repairing the battery to be repaired according to the basic information and the actual electrical parameter corresponding to the battery to be repaired includes: performing secondary detection on the battery to be repaired according to the failure information and the actual electrical parameter corresponding to the battery to be repaired, where the secondary detection is used to detect an internal structure and a charge-discharge performance of the battery to be repaired; determining a repair scheme of the battery to be repaired according to a second detection result of the secondary detection; and repairing the battery to be repaired according to the repair scheme.

[0011] In some possible implementation manners, the repair scheme includes at least one of electrolyte repair, positive electrode repair, negative electrode repair, and separator repair.

[0012] In some possible implementation manners, the repairing the battery to be repaired according to the basic information and the actual electrical parameter corresponding to the battery to be repaired includes: performing discharge processing and / or impurity removal processing on the battery to be repaired; and repairing the battery to be repaired after the discharge processing and / or the impurity removal processing according to the basic information and the actual electrical parameter corresponding to the battery to be repaired.

[0013] In a second aspect, the present application provides a battery recycling device, which includes: a recycling unit configured to obtain a plurality of recycled batteries and record basic information of the recycled batteries; a first detection unit configured to perform primary detection on the recycled batteries and determine actual electrical parameters of the recycled batteries according to a first detection result of the primary detection; a determination unit configured to determine a battery to be repaired in the recycled batteries according to the basic information and the actual electrical parameters of the recycled batteries; and a repair unit configured to repair the battery to be repaired according to the basic information and the actual electrical parameters corresponding to the battery to be repaired.

[0014] In some possible implementation manners, the basic information of the recycled battery includes standard electrical parameters of the recycled battery, and the determining unit is configured to: determine an attenuation value of the recycled battery according to the standard electrical parameters and the actual electrical parameters, the attenuation value being used to indicate a difference between the actual electrical parameters and corresponding standard electrical parameters; and determine the battery to be repaired according to the attenuation value.

[0015] In some possible implementation manners, the actual electrical parameters of the recycled battery include actual open-circuit voltage and actual internal resistance of the recycled battery, the standard electrical parameters include standard open-circuit voltage and standard internal resistance of the recycled battery, and the attenuation value includes a first attenuation value indicating a difference between the actual open-circuit voltage and the standard open-circuit voltage, and the attenuation value further includes a second attenuation value indicating a difference between the actual internal resistance and the standard internal resistance.

[0016] In some possible implementation manners, the determining unit is configured to: determine, as the battery to be repaired, a recycled battery in which the first attenuation value is greater than a first attenuation threshold and the second attenuation value is less than a second attenuation threshold, when determining the battery to be repaired according to the attenuation value.

[0017] In some possible implementation manners, the basic information of the recycled battery includes failure information of the recycled battery, and the repairing unit is configured to: perform secondary detection on the battery to be repaired according to the corresponding basic information and actual electrical parameters of the battery to be repaired, the secondary detection being used to detect an internal structure and charge-discharge performance of the battery to be repaired; determine a repairing scheme of the battery to be repaired according to a second detection result of the secondary detection; and perform repairing on the battery to be repaired according to the repairing scheme.

[0018] In some possible implementation manners, the repairing scheme includes at least one of electrolyte repairing, positive electrode repairing, negative electrode repairing and separator repairing.

[0019] In some possible implementation manners, the repairing unit is configured to: perform discharging processing and / or impurity removing processing on the battery to be repaired, when performing repairing on the battery to be repaired according to the corresponding basic information and actual electrical parameters of the battery to be repaired; and perform repairing on the battery to be repaired after the discharging processing and / or impurity removing processing according to the corresponding basic information and actual electrical parameters of the battery to be repaired.

[0020] In a third aspect, the present application provides an electronic device, comprising a memory having stored thereon program instructions for recycling batteries; and a processor, which, when the program instructions are executed by the processor, causes the device to implement the method in any possible implementation of the first aspect of the present application.

[0021] In a fourth aspect, the present application provides a computer program (product), comprising computer program / instructions, which, when executed by a processor, causes a device to implement the method in the first aspect or any possible implementation of the first aspect of the present application.

[0022] In a fifth aspect, the present application provides a computer-readable storage medium having stored thereon program instructions for recycling batteries, which, when executed by one or more processors, causes a device to implement the method in the first aspect or any possible implementation of the first aspect of the present application.

[0023] The technical solutions provided by the present application have at least the following beneficial effects:

[0024] The technical solutions provided by the present application have at least the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment 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 creative labor.

[0026] Figure 1 is a flowchart of the battery recycling method provided by the embodiments of the present application;

[0027] Figure 2 is a structural schematic diagram of the battery recycling device provided by the embodiments of the present application;

[0028] Figure 3is a structural schematic diagram of an electronic device for recycling batteries provided by an embodiment of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0030] The exemplary embodiments will be described in detail below with reference to the drawings. Unless otherwise indicated, the same numbers on different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments are not meant to represent all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims.

[0031] Figure 1 is a flowchart of a battery recycling method provided by an embodiment of the present application. Referring to Figure 1 , the battery recycling method provided by an embodiment of the present application includes steps S110-S140.

[0032] In step S110, a plurality of recycled batteries are obtained, and basic information of the plurality of recycled batteries is recorded.

[0033] Exemplarily, the plurality of recycled batteries are any type of electrochemical batteries whose electrical performance cannot continue to meet the use requirements due to natural aging, structural damage, internal failure, etc., including but not limited to lead-acid batteries, lithium-ion batteries, nickel-hydrogen batteries, nickel-cadmium batteries, etc., based on electrochemical principles, which can be used as any type of battery for vehicle power batteries, energy storage batteries, consumer electronic batteries, medical batteries, industrial batteries. The plurality of recycled batteries are collected through channels such as electric vehicle disassembly plants, battery recycling stations, automobile repair plants, etc.

[0034] The basic information of the plurality of recycled batteries includes but is not limited to battery model information indicating the specifications and sizes of the plurality of recycled batteries, production information indicating the manufacturers of the plurality of recycled batteries, production date information of the plurality of recycled batteries, standard electrical parameter information indicating the electrical performance exhibited by the plurality of recycled batteries under standard test conditions, electrochemical system information indicating the chemical materials and reaction principles of the plurality of recycled batteries, and failure information indicating the problems and defects in the plurality of recycled batteries.

[0035] In step S120, the recycled batteries are detected once, and actual electrical parameters of the recycled batteries are determined according to a first detection result of the once detection.

[0036] Optionally, the actual electrical parameters of the recycled batteries are electrical performances of the recycled batteries under test conditions of the once detection. Considering that, in actual application scenarios, the internal resistance and the open-circuit voltage are commonly used parameters for reflecting the health status and the electrical performance of the batteries, in some embodiments, the actual electrical parameters determined according to the first detection result are multiple actual internal resistances and multiple actual open-circuit voltages of the multiple recycled batteries under the test conditions of the first detection, so that the current health status and the electrical performance of the multiple recycled batteries can be evaluated. The detection mode of the once detection corresponding to the first detection result can be adjusted according to actual electrical parameters required to be detected in actual application scenarios, and the present application does not make any limitation in this aspect. For example, the internal resistance and the open-circuit voltage of the multiple recycled batteries are directly measured by using a voltmeter and an internal resistance tester.

[0037] In order to improve the safety of the once detection and the reliability of the detection result, in some embodiments, before the recycled batteries are detected once, the multiple recycled batteries are subjected to discharging treatment and / or impurity removal treatment, so as to remove dust, dirt, corrosion and other impurities on the surface and inside of the multiple recycled batteries, avoid the influence of the impurities on the first detection result, and ensure the safety of the once detection.

[0038] In step S130, the recycled batteries are determined according to the basic information and the actual electrical parameters of the recycled batteries.

[0039] Exemplarily, the recycled batteries to be repaired are multiple recycled batteries having repair value among the multiple recycled batteries. As described above, the standard electrical information of the recycled batteries can indicate the electrical performance of the recycled batteries under standard test conditions, i.e., can be used to indicate the rational health status and performance of the recycled batteries; the actual electrical parameters of the recycled batteries can be used to indicate the performance under the test conditions of the once detection, i.e., the health status and performance of the recycled batteries after being recycled. Considering that, in actual application scenarios, the repair cost of the multiple recycled batteries with different health status and performance is different, the recycled batteries to be repaired having repair value among the multiple recycled batteries can be screened, so as to improve the performance-price ratio of repairing the multiple recycled batteries.

[0040] In some embodiments, when the basic information includes standard electrical parameters of the plurality of recycled batteries, the determining the to-be-repaired battery from the plurality of recycled batteries according to the basic information and the actual electrical parameters includes: determining attenuation values of the plurality of recycled batteries according to the standard electrical parameters and the actual electrical parameters, and determining the to-be-repaired battery according to the attenuation values. The attenuation value is used to indicate the difference between the actual electrical parameter and the corresponding standard electrical parameter, i.e., the degree of decline of the health status and the electrical performance of any one of the plurality of recycled batteries.

[0041] As described above, the internal resistance and the open-circuit voltage are commonly used parameters for reflecting the health status and the electrical performance of the battery. In order to improve the screening efficiency of the plurality of recycled batteries, the plurality of recycled batteries can be screened according to the attenuation values of the actual internal resistance and the actual open-circuit voltage of the plurality of recycled batteries.

[0042] In some embodiments, the actual electrical parameters include actual open-circuit voltages and actual internal resistances of the plurality of recycled batteries, the standard electrical parameters include standard open-circuit voltages and standard internal resistances of the plurality of recycled batteries, and the attenuation values include first attenuation values indicating the difference between the actual open-circuit voltage and the standard open-circuit voltage, and the attenuation values further include second attenuation values indicating the difference between the actual internal resistance and the standard internal resistance. The first attenuation value is usually negative, and the smaller the first attenuation value, the worse the health status and the electrical performance of the plurality of recycled batteries. The second attenuation value is usually positive, and the greater the second attenuation value, the worse the health status and the electrical performance of the plurality of recycled batteries.

[0043] In this case, the method for determining the to-be-repaired battery according to the attenuation values includes, for example: determining, from the plurality of recycled batteries, the plurality of recycled batteries whose first attenuation value is greater than a first attenuation threshold value and whose second attenuation value is less than a second attenuation threshold value as the to-be-repaired battery. The values of the first attenuation threshold value and the second attenuation threshold value can be adjusted according to actual application, which is not limited in this regard by the present application.

[0044] It is also considered that the repair value of the plurality of recycled batteries with the same health status and electrical performance can be different according to different application scenarios. For example, when the budget of the repair cost is higher, the value of the first attenuation threshold value can be smaller, and the value of the second attenuation threshold value can be larger. When the budget of the repair cost is lower, the value of the first attenuation threshold value can be larger, and the value of the second attenuation threshold value can be smaller. In view of this, after detecting the plurality of recycled batteries once, the plurality of recycled batteries can be pre-classified according to the attenuation values of the plurality of recycled batteries, so as to improve the efficiency of screening and determining the to-be-repaired battery from the plurality of recycled batteries.

[0045] For example, according to the attenuation values of the plurality of recycled batteries, i.e., according to the actual electrical parameters and the standard electrical parameters of the plurality of recycled batteries, the plurality of recycled batteries are divided into a first category of recycled batteries, a second category of recycled batteries and a third category of recycled batteries, and the attenuation values of the first category of recycled batteries, the second category of recycled batteries and the third category of recycled batteries increase in turn. In this case, the to-be-repaired battery can be selected from the recycled batteries of different categories according to the cost budget for repairing the plurality of recycled batteries in the actual application scenario. For example, when the cost budget for repairing the plurality of recycled batteries is low, the to-be-repaired battery can be determined from the first category of recycled batteries; when the cost budget for repairing the plurality of recycled batteries is high, the to-be-repaired battery can be determined from the third category of recycled batteries; and when the cost budget for repairing the plurality of recycled batteries is moderate, the to-be-repaired battery can be determined from the second category of recycled batteries.

[0046] It should be noted that the classification criteria and the number of categories when classifying the plurality of recycled batteries are illustrative rather than limiting, and the classification criteria can also be the collection channel, production date, appearance integrity of the plurality of recycled batteries, etc. according to different implementation manners, and the number of categories can also be 2, 4, 10, etc. The present application does not make any limitation in this regard.

[0047] In step S140, the to-be-repaired battery is repaired according to the basic information and the actual electrical parameters corresponding to the to-be-repaired battery.

[0048] Since the health status and electrical performance of different to-be-repaired batteries can not be the same, the required repair means can also be different. In view of this, before repairing the to-be-repaired battery, the to-be-repaired battery needs to be detected again to select the appropriate repair scheme. The secondary detection is used for but not limited to deep detection of the internal structure and charge-discharge performance of the to-be-repaired battery. The detection method of the secondary detection includes but is not limited to multiple rate charge-discharge test, which can be used for but is not limited to evaluating the charge-discharge performance of the to-be-repaired battery; multiple rate charge-discharge test under different temperature conditions, which can be used for but is not limited to evaluating the performance of the charge-discharge performance of the to-be-repaired battery under different temperatures (working conditions); X-ray tomography, which can be used for but is not limited to determining the microstructure of the to-be-repaired battery, such as the electrode topography of the to-be-repaired battery, the adhesion between the electrode and the separator, whether there is a short circuit point, a micro crack in the to-be-repaired battery, and whether the electrolyte distribution of the to-be-repaired battery is uniform; electrochemical impedance spectroscopy and / or cyclic voltammetry test, which can be used for but is not limited to evaluating the health status of the electrochemical process inside the to-be-repaired battery, such as the charge transfer resistance of the electrode / electrolyte interface of the to-be-repaired battery, the ion diffusion performance of the electrolyte of the to-be-repaired battery, the reversibility of the electrode reaction, etc.

[0049] To further improve the repair efficiency and reduce the cost of deep detection on the battery to be repaired, the health status and electrical performance of the battery to be repaired can be preliminarily evaluated according to the fault information corresponding to the battery to be repaired recorded in the plurality of basic information of the plurality of recycled batteries and the actual electrical parameters corresponding to the battery to be repaired determined after the first detection, so as to exclude unnecessary secondary detection. In some embodiments, the basic information includes the fault information of the plurality of recycled batteries, and the repair of the battery to be repaired according to the basic information and the actual electrical parameters of the battery to be repaired includes: performing secondary detection on the battery to be repaired according to the fault information corresponding to the battery to be repaired and the actual electrical parameters, and determining a repair scheme of the battery to be repaired according to a second detection result of the secondary detection. The secondary detection is used to detect the internal structure and charge-discharge performance of the battery to be repaired. The repair scheme of the battery to be repaired includes at least one of electrolyte repair, positive electrode repair, negative electrode repair and separator repair.

[0050] To improve the safety of the secondary detection and the reliability of the detection result, in some embodiments, before the repair of the battery to be repaired according to the basic information and the actual electrical parameters, the method provided by the embodiments of the present application further includes: performing discharge treatment and / or impurity removal treatment on the battery to be repaired to remove impurities such as dust, dirt and corrosion on the surface and inside of the plurality of recycled batteries, so as to avoid the influence of the impurities on the second detection result of the secondary detection.

[0051] The second detection result of the secondary detection can reflect the root cause of the decline of the health status and electrical performance of the battery to be repaired, and then a suitable repair scheme is selected to repair the battery to be repaired. The selection of the repair scheme can refer to the following standards.

[0052] Case one, if the electrolyte of the battery to be repaired shows local dryness or unevenness in the X-ray tomography, it can be determined that electrolyte repair operation is needed for the battery to be repaired. In this case, the electrolyte repair operation includes, for example, supplementing electrolyte and / or redistributing the electrolyte.

[0053] Case two, if the ion diffusion performance of the electrolyte of the battery to be repaired is abnormal in the X-ray tomography, it can be determined that electrolyte repair operation is needed for the battery to be repaired. In this case, the electrolyte repair operation includes, for example, adjusting the electrolyte concentration and / or replacing part of the electrolyte.

[0054] Case three, if the positive / negative electrode of the battery to be repaired appears to be detached or deformed, or the damaged active material on the positive / negative electrode of the battery to be repaired appears to be agglomerated or dissolved, it can be determined that positive / negative electrode repair operation is needed for the battery to be repaired. In this case, the positive / negative electrode repair operation includes, for example, repairing the positive / negative electrode skeleton structure and / or re-coating the active material.

[0055] Case 4: If the redox peak current ratio deviates from the normal range (generally the normal ratio is between 0.8-1.2) or the peak potential moves more than 50mV in the cyclic voltammetry test, it can be determined that the battery to be repaired needs to undergo positive electrode repair / negative electrode repair operation. In this case, the positive electrode repair / negative electrode repair operation includes, for example, cleaning, activating or re-preparing the positive / negative electrode and other repair measures.

[0056] Case 5: If, during the multi-rate charge and discharge test, the charge and discharge curve of the battery to be repaired shows obvious shortening of the voltage platform, abnormal slope changes, etc., it can be determined that the battery to be repaired needs to undergo positive electrode repair / negative electrode repair operations.

[0057] Case 6: If a large area of ​​separation is found between the positive / negative electrode and the diaphragm of the battery to be repaired in the X-ray tomography scan, it can be determined that the battery to be repaired needs to undergo a diaphragm repair operation. In this case, the diaphragm repair operation includes, for example, reinstalling or repairing the diaphragm.

[0058] Case 7: If a short circuit point is found in the diaphragm of the battery to be repaired during X-ray tomography, for example, a void or crack appears in the diaphragm of the battery to be repaired, it can be determined that the battery to be repaired needs to undergo diaphragm repair. In this case, the diaphragm repair operation includes, for example, repairing or replacing the diaphragm.

[0059] It should be noted that the above-mentioned various situations and their corresponding repair schemes and repair operations are illustrative and non-restrictive. It should also be noted that in the battery to be repaired, the above-mentioned various situations can occur individually or simultaneously. In view of this, depending on the actual application situation, the above-mentioned repair schemes and repair operations can be used individually or in combination, and this application does not limit this aspect.

[0060] The present application provides a method, device, equipment and storage medium for repairing recycled batteries. After obtaining multiple recycled batteries, the method records multiple basic information of the multiple recycled batteries and detects the current actual electrical parameters of the multiple recycled batteries, so that the multiple recycled batteries can be screened according to the multiple basic information and actual electrical parameters of the multiple recycled batteries to determine the batteries to be repaired that have repair value. On the one hand, it is conducive to reducing the operation of simple mechanical disassembly of the multiple recycled batteries, thereby avoiding environmental pollution and energy consumption problems that may occur during the simple mechanical disassembly process. On the other hand, it is conducive to improving the utilization rate of the available residual value of the multiple recycled batteries, for example, according to the basic information and actual electrical parameters of the multiple recycled batteries, the multiple recycled batteries are targeted for repair, thereby making full use of the remaining electrochemical properties in the multiple recycled batteries and improving resource utilization.

[0061] In some possible embodiments, the application further provides a battery recycling device. Figure 2 is a structural schematic diagram of the battery recycling device provided by the embodiments of the application, referring to Figure 2 The battery recycling device provided by the embodiments of the application comprises a recycling unit 210, a first detection unit 220, a determination unit 230 and a repairing unit 240.

[0062] The recycling unit 210 is configured to obtain a plurality of recycled batteries and record basic information of the plurality of recycled batteries.

[0063] The first detection unit 220 is configured to perform a first detection on the recycled batteries and determine actual electrical parameters of the recycled batteries according to a first detection result of the first detection.

[0064] The determination unit 230 is configured to determine a battery to be repaired from the plurality of recycled batteries according to the basic information of the recycled batteries and the actual electrical parameters.

[0065] The repairing unit 240 is configured to repair the battery to be repaired according to the basic information and the actual electrical parameters corresponding to the battery to be repaired.

[0066] In some embodiments, the basic information of the recycled batteries comprises standard electrical parameters of the recycled batteries, and the determination unit 230, when determining the battery to be repaired from the plurality of recycled batteries according to the basic information of the recycled batteries and the actual electrical parameters, is configured to determine a decay value of the recycled battery according to the standard electrical parameters and the actual electrical parameters, the decay value being used to indicate a difference between the actual electrical parameters and corresponding standard electrical parameters, and determine the battery to be repaired according to the decay value.

[0067] In some embodiments, the actual electrical parameters of the recycled batteries comprise actual open-circuit voltage and actual internal resistance of the recycled batteries, the standard electrical parameters comprise standard open-circuit voltage and standard internal resistance of the recycled batteries, and the decay value comprises a first decay value indicating a difference between the actual open-circuit voltage and the standard open-circuit voltage, and the decay value further comprises a second decay value indicating a difference between the actual internal resistance and the standard internal resistance.

[0068] In some embodiments, the determination unit 230, when determining the battery to be repaired according to the decay value, is configured to determine, from the recycled batteries, a recycled battery with a first decay value greater than a first decay threshold and a second decay value less than a second decay threshold as the battery to be repaired.

[0069] In some embodiments, the basic information of the recycled battery includes the fault information of the recycled battery. When the repair unit 230 repairs the battery to be repaired according to the basic information and actual electrical parameters corresponding to the battery to be repaired, it is configured to: perform a secondary detection on the battery to be repaired according to the fault information and actual electrical parameters corresponding to the battery to be repaired, and the secondary detection is used to detect the internal structure and charge and discharge performance of the battery to be repaired; determine a repair plan for the battery to be repaired according to the second detection result of the secondary detection; and repair the battery to be repaired according to the repair plan.

[0070] In some embodiments, the repair scheme includes at least one of electrolyte repair, cathode repair, anode repair, and separator repair.

[0071] In some embodiments, when repairing the battery to be repaired according to the basic information corresponding to the battery to be repaired and the actual electrical parameters corresponding to the battery to be repaired, the repair unit 240 is configured to: perform discharge processing and / or impurity removal processing on the battery to be repaired; and repair the battery to be repaired after the discharge processing and / or impurity removal processing according to the basic information corresponding to the battery to be repaired and the actual electrical parameters.

[0072] It should be understood that the battery recycling device and the battery recycling method provided in the above embodiment belong to the same concept, and the specific implementation process thereof is detailed in the battery recycling method embodiment.

[0073] In some other possible implementations, the present application also provides an electronic device for recycling batteries. Figure 3 This is a schematic diagram of the structure of an electronic device for recycling batteries provided in an embodiment of the present application, see Figure 3 The electronic device for recycling batteries provided in the embodiment of the present application includes:

[0074] The memory 310 stores at least one program instruction for recycling batteries. The processor 320, when the program instruction is executed by the processor 320, enables the device to realize the above combination Figure 1The steps of the described method and its multiple embodiments. Depending on the implementation, the processor 320 can be one or more types of processors, including but not limited to a DSP (digital signal processor), an ASIC (application specific integrated circuit), a FPGA (field-programmable gate array) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. and its number can be determined according to actual needs.

[0075] In yet some possible implementation, the present application also provides a computer program (product) comprising computer program / instructions, which are executed by a processor to enable an apparatus to implement the above-mentioned method and its multiple embodiments. Figure 1 The steps of the described method and its multiple embodiments.

[0076] In yet some possible implementation, the present application also provides a computer readable storage medium having stored thereon program instructions for recycling a battery, which, when executed by one or more processors, enable an apparatus to implement the above-mentioned method and its multiple embodiments. Figure 1 The steps of the described method and its multiple embodiments. The computer readable storage medium can be a readable signal medium or a readable storage medium. The readable storage medium may, for example, but not limited to, be an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or apparatus, or any combination of the above. More specific examples (non-exhaustive list) of the readable storage medium include an electrical connection having one or more wires, a portable disc, a hard disk, a random access memory (RAM), a read only memory (ROM), an erasable programmable read only memory (EPROM or flash memory), an optical fiber, a portable compact disc read only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0077] It should also be noted that the terms "first", "second" and the like, if any, in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a specific sequential or chronological order. It is to be understood that the use of these terms herein is merely for distinguishing between the similar objects and the use of these terms in the description and the claims of the present application is not a representation that the objects so distinguished are consecutive or in any other temporal relation. Embodiments described in the following examples should not be interpreted as a limitation to all embodiments consistent with the present application. Rather, these embodiments are described as examples consistent with some aspects of the present application as detailed in the appended claims.

[0078] The term "and / or", within the scope of the present application, merely describes an association between associated objects, which can exist in three relationships, for example, A and / or B, which can represent three cases: A exists alone, A and B exist together, and B exists alone.

[0079] The above description is merely intended for the purpose of understanding the technical solutions of the present application. It should not be used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery recycling method, characterized in that: The method comprises: Acquire multiple recycled batteries and record basic information of the multiple recycled batteries; Performing a test on the recycled battery, and determining actual electrical parameters of the recycled battery according to a first test result of the test; Determining a battery to be repaired among the plurality of recycled batteries according to the basic information of the recycled batteries and the actual electrical parameters; The battery to be repaired is repaired according to the basic information and actual electrical parameters corresponding to the battery to be repaired.

2. The method according to claim 1, characterized in that The basic information of the recycled batteries includes standard electrical parameters of the recycled batteries, and determining the batteries to be repaired among the plurality of recycled batteries according to the basic information of the recycled batteries and the actual electrical parameters includes: determining an attenuation value of the recycled battery according to the standard electrical parameter and the actual electrical parameter, the attenuation value being used to indicate a difference between the actual electrical parameter and the corresponding standard electrical parameter; The battery to be repaired is determined according to the attenuation value.

3. The method according to claim 2, characterized in that The actual electrical parameters of the recycled battery include an actual open-circuit voltage and an actual internal resistance of the recycled battery, the standard electrical parameters include a standard open-circuit voltage and a standard internal resistance of the recycled battery, the attenuation value includes a first attenuation value indicating a difference between the actual open-circuit voltage and the standard open-circuit voltage, and the attenuation value also includes a second attenuation value indicating a difference between the actual internal resistance and the standard internal resistance.

4. The method according to claim 3, characterized in that The step of determining the battery to be repaired according to the attenuation value includes: Among the recycled batteries, the recycled batteries whose first attenuation value is greater than a first attenuation threshold and whose second attenuation value is less than a second attenuation threshold are determined as batteries to be repaired.

5. The method according to claim 1, characterized in that The basic information of the recycled battery includes fault information of the recycled battery, and repairing the battery to be repaired according to the basic information and actual electrical parameters corresponding to the battery to be repaired includes: Performing a secondary test on the battery to be repaired based on the fault information and actual electrical parameters corresponding to the battery to be repaired, wherein the secondary test is used to detect the internal structure and charge and discharge performance of the battery to be repaired; Determining a repair plan for the battery to be repaired according to the second test result of the secondary test; The battery to be repaired is repaired according to the repair plan.

6. The method according to claim 5, characterized in that The repair scheme includes at least one of electrolyte repair, positive electrode repair, negative electrode repair and diaphragm repair.

7. The method according to any one of claims 1 to 6, characterized in that The repairing of the battery to be repaired according to the basic information and actual electrical parameters corresponding to the battery to be repaired includes: Performing a discharge process and / or an impurity removal process on the battery to be repaired; The battery to be repaired after the discharge treatment and / or impurity removal treatment is repaired according to the basic information and actual electrical parameters corresponding to the battery to be repaired.

8. A battery recycling device, characterized in that: The device comprises: a recycling unit configured to obtain a plurality of recycled batteries and record basic information of the plurality of recycled batteries; a first detection unit, configured to perform a single detection on the recycled battery and determine actual electrical parameters of the recycled battery according to a first detection result of the single detection; a determining unit configured to determine a battery to be repaired among the plurality of recycled batteries according to the basic information of the recycled batteries and the actual electrical parameters; The repair unit is configured to repair the battery to be repaired according to the basic information and actual electrical parameters corresponding to the battery to be repaired.

9. An electronic device, characterized in that: include: A memory storing program instructions for recycling batteries; as well as The processor, when the program instructions are executed by the processor, causes the apparatus to implement the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that Program instructions for recycling batteries are stored thereon. When the program instructions are executed by one or more processors, the device implements the method according to any one of claims 1 to 7.

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