METHOD AND APPARATUS FOR DETERMINING THE RECYCLING MODE OF A BATTERY, ELECTRONIC DEVICE AND STORAGE MEDIA

Abstract

This disclosure provides a method and apparatus for determining the recycling method of a battery, an electronic device, and a storage medium. It provides carbon emissions from power loss as a function of battery type, number of battery cycles, battery charge-discharge efficiency, battery capacity retention rate, power emission factor, and battery nominal capacity, with carbon emissions from power loss being carbon emissions generated by power loss during battery charging and discharging. It also provides carbon emissions per single charge-discharge of batteries used in regeneration and cascade, respectively, as a function of carbon emissions from power loss, carbon emissions from the recycling process, and battery life.and by comparing the carbon emissions per single charge-discharge of batteries used in regeneration and cascade, so as to determine the recycling method with the least carbon emissions as the target battery recycling method, the removed batteries can be transformed into low-carbon battery products to meet the demand from energy storage companies and new energy vehicle manufacturers for low-carbon products, ultimately leading to a low-carbon and environmentally friendly solution. (To be published with FIG. 1);

Description

Title of the invention: METHOD AND APPARATUS DETERMINATION OF RECYCLING METHOD FOR A BATTERY, ELECTRONIC DEVICE AND STORAGE MEDIA Technical Field

[0001] This disclosure relates to the technical field of traction battery recycling, and in particular to a method and apparatus for determining the recycling method of a battery, an electronic device, and a storage medium. TECHNOLOGICAL BACKGROUND

[0002] With the rapid development of new energy vehicles, the amount of traction battery equipment is increasing year by year. As traction batteries approach the end of their service life, the recycling of retired batteries becomes increasingly important. Currently, the main recycling methods include regenerative and cascading uses. The environmentally sound recycling of retired traction batteries has become an important and widely discussed topic in contemporary society.

[0003] In the prior art, the selection of recycling methods for withdrawn traction batteries generally depends on factors such as the remaining battery capacity and external damage. Current factors influencing the selection of recycling methods for withdrawn traction batteries often neglect carbon emissions throughout the life cycle of the traction batteries, which can potentially lead to an exacerbation of pollution from carbon emissions.

[0004] SUMMARY

[0005] In view of the foregoing, the objectives of this disclosure are to provide a method and apparatus for determining the recycling method of a battery, an electronic device and a storage medium, enabling low-carbon and environmentally friendly battery recycling.

[0006] In order to achieve the above objectives, the technical solutions adopted by the embodiments of this disclosure are as follows.

[0007] In a first aspect, the present disclosure provides a method for determining the recycling mode of a battery implemented by an electronic device, comprising the following steps: acquire a battery type of a battery in question to determine preset battery parameters corresponding to the battery type, the preset battery parameters including the number of battery cycles, battery life, battery charge-discharge efficiency, battery capacity retention rate, power emission factor, battery nominal capacity and carbon emissions from the recycling process; to obtain carbon emissions from power loss as a function of battery type, number of battery cycles, battery charge-discharge efficiency, battery capacity retention rate, power emission factor and battery nominal capacity, carbon emissions from power loss being carbon emissions generated by power loss during battery charging and discharging; to obtain carbon emissions per single charge-discharge of batteries used in regeneration and batteries used in cascade, respectively, as a function of carbon emissions from power loss, carbon emissions from a recycling process and battery life; and to compare the carbon emissions per single charge-discharge of batteries used in regeneration and batteries used in cascade, in order to determine the recycling method with the lowest carbon emissions as the target recycling method for the battery in question.

[0008] In an optional embodiment, prior to the step of acquiring the battery type of the battery in question, the method further includes the step of: predefining the number of battery cycles, the battery life, the nominal battery capacity, the battery type, the carbon emissions from the recycling process, the power emission factor, the battery capacity retention rate and the battery charge-discharge efficiency corresponding to each battery type, respectively; in which the battery capacity retention rate and battery charge-discharge efficiency are determined by fitting sampled data from a plurality of battery types.

[0009] In an optional embodiment, the battery charge-discharge efficiency and the number of battery cycles satisfy the following relationship: z - i 0944^02450,1z denotes the charge-discharge efficiency of the battery etx denotes the number of cycles of the battery.

[0010] In an optional embodiment, the battery type comprises a first battery type, a second battery type, and a third battery type, and the rate of Battery capacity retention and the number of battery cycles satisfy the following relationships: j - -1.3577 x 10' 8 xx 3 +3.3137 x 10' 5 xx 2 - 0.0246x + 103.008 zl -0.01x+100.61, l <x<2100 -0.0615x + 229, x>2100

[0011]

[0012]

[0013]

[0014]

[0015] yc = -8.27719x 10*9 xx3 + 3.6009 x 10'5 x x2-0.04805x+101753 where X represents the number of battery cycles, y a represents a battery capacity retention rate of the first battery type, yb represents a battery capacity retention rate of the second battery type, and represents a battery capacity retention rate of the third battery type. In an optional embodiment, the battery type includes a first battery type and a second battery type, and the formulas for calculating carbon emissions from power loss are as follows: GAreg = ^\mAxEF x yAx (1-z) dx (-2530 g aCas = L m A xEF^y A ^ ( 1 - z) dx G B8eg = i i m B xEFxy B x (1-z) dx (-3240 = L m B xEFxy B x ( 1-z) dx where G a Reg denotes carbon emissions from power loss for regenerative use of the first battery type, GA Cas denotes carbon emissions from power loss for cascade use of the first battery type, GB 8eg denotes carbon emissions resulting from a power loss for use in regeneration of the second battery type, GBCas denotes carbon emissions resulting from a power loss for cascade use of the second battery type, mA denotes a nominal battery capacity of the first battery type, mR denotes a nominal battery capacity of the second battery type, EF denotes a power emission factor, z denotes a battery charge-discharge efficiency, ^4 denotes a battery capacity retention rate of the first battery type, and yb denotes a battery capacity retention rate of the second battery type.

[0016] In an optional embodiment, a formula for calculating the carbon emissions of the recycling process is as follows: E^M. x EFjOÙ E denotes carbon emissions from a recycling process, Mj denotes a mass or energy of raw and auxiliary materials and energy source used during the recycling process, and EFt denotes a emission factor for the mass or quantity of energy of raw and auxiliary materials and energy source used during the recycling process.

[0017] In a second aspect, the present disclosure provides an apparatus for determining the recycling method of a battery implemented by an electronic device, comprising: an acquisition module configured to acquire a battery type from a battery in question to determine predefined battery parameters corresponding to the battery type, the predefined battery parameters including the number of battery cycles, battery life, battery charge-discharge efficiency, battery capacity retention rate, power emission factor, battery nominal capacity and carbon emissions from the recycling process; a calculation module configured to obtain carbon emissions from power loss as a function of battery type, number of battery cycles, battery charge-discharge efficiency, battery capacity retention rate, power emission factor and battery nominal capacity, carbon emissions from power loss being carbon emissions generated by power loss during battery charging and discharging, and to obtain carbon emissions per single charge-discharge of batteries used in regeneration and cascade, respectively, as a function of carbon emissions from power loss, carbon emissions from a recycling process and battery life;and a decision module configured to compare the carbon emissions per single charge-discharge of batteries used in regeneration and batteries used in cascade, in order to determine the recycling method with the lowest carbon emissions as the target recycling method for the battery in question.

[0018] In an optional embodiment, the acquisition module is further configured to initialize predefined battery parameters, and predefine the number of battery cycles, battery life, nominal battery capacity, battery type, carbon emissions from a recycling process, power emission factor, battery capacity retention rate and battery charge-discharge efficiency corresponding to each battery type, respectively; where the battery capacity retention rate and battery charge-discharge efficiency are determined by fitting sampled data from a plurality of battery types.

[0019] In a third aspect, the present disclosure provides an electronic device comprising a memory and a processor, wherein the memory is configured to store a computer program, and the processor is configured to perform the method for determining the recycling method of a battery according to any of the embodiments described above when using a computer program.

[0020] In a fourth aspect, the present invention relates to a computer-readable storage medium storing a computer program on it, in which the computer program, when executed by a processor, implements the method for determining the recycling mode of a battery of any of the embodiments described above.

[0021] By comparison to the prior art, according to the method and apparatus for determining the recycling method of a battery, the electronic device and the storage medium provided by the embodiments of this disclosure, by acquiring a battery type from a battery in question to determine predefined battery parameters corresponding to the battery type, the predefined battery parameters including the number of battery cycles, the battery life, the battery charge-discharge efficiency, the battery capacity retention rate, the power emission factor, the nominal battery capacity and the carbon emissions of the recycling process;obtaining carbon emissions from power loss as a function of battery type, number of battery cycles, battery charge-discharge efficiency, battery capacity retention rate, power emission factor and battery nominal capacity, carbon emissions from power loss being carbon emissions generated by power loss during battery charging and discharging; obtaining carbon emissions per single charge-discharge of batteries used in regeneration and cascade respectively, as a function of carbon emissions from power loss, carbon emissions from the recycling process and battery life;and by comparing the carbon emissions per single charge-discharge of batteries used in regeneration and cascade, in order to determine the recycling method with the lowest carbon emissions as the target recycling method for the battery in question, the removed batteries can be transformed into low-carbon battery products to meet the demand from energy storage companies and new energy vehicle manufacturers for low-carbon products, ultimately achieving low carbon content and environmental protection.

[0022] To facilitate a better understanding of the objectives, features and benefits of this disclosure, preferred examples are presented below and are described in detail with reference to the accompanying drawings. Brief description of the drawings

[0023] To explain more clearly the technical solutions to the examples in this disclosure, the accompanying drawings to be used in the examples are briefly described below. It should be understood that the following accompanying drawings represent only a few examples of this disclosure and, therefore, should not be considered as limiting the scope of this disclosure. For a person skilled in the art, other relevant drawings can be deduced from these drawings without any inventive effort.

[0024] Fig. 1 shows a schematic flowchart of a method for determining the recycling method of a battery according to an example in this disclosure.

[0025] Figure 2 shows another schematic flowchart of a method for determining the recycling method of a battery according to an example in the present disclosure.

[0026] Fig. 3 shows a schematic diagram illustrating the relationship between the battery charge-discharge efficiency and the number of battery cycles.

[0027] Fig. 4 shows a schematic diagram illustrating the relationship between the battery capacity retention rate and the number of battery cycles of a first type of battery.

[0028] Fig. 5 shows a schematic diagram illustrating the relationship between the battery capacity retention rate and the number of battery cycles of a second type of battery.

[0029] Figure 6 shows a schematic diagram illustrating the relationship between the battery capacity retention rate and the number of battery cycles of a third type of battery.

[0030] Figure 7 shows a functional diagram of a device for determining the recycling mode of a battery according to an example in this disclosure.

[0031] Figure 8 shows a functional diagram of an electronic device according to an example in this disclosure.

[0032] Numerical references: 100 - Electronic device; 110 - Memory; 120 - Processor; 130 - Communication module; 200 - Device for determining the recycling mode of a battery; 201 - Acquisition module; 202 - Calculation module; and 203 - Decision module.

[0033] DETAILED DESCRIPTION OF EMBODIMENT MODES

[0034] The technical solutions in the examples in this disclosure are clearly and fully described below with reference to the drawings in the examples in this disclosure. It is understood that the examples described are only some of the examples in this disclosure and are not all examples of this. Generally, the example components of this disclosure described and illustrated in the drawings herein can be arranged and designed in a variety of different configurations.

[0035] Therefore, the detailed description that follows of examples of this disclosure in the accompanying drawings is not intended to limit the scope of protection of this disclosure, but merely represents selected examples of this disclosure. Any other examples obtained by a person skilled in the art on the basis of the examples in this disclosure without inventive effort fall within the scope of protection of this disclosure.

[0036] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, without necessarily requiring or implying any actual relation or sequence between those entities or operations. Furthermore, the terms "include," "comprise," or any variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device that comprises a series of elements includes not only those enumerated elements but also other elements not expressly enumerated or further includes elements inherent in such a process, method, article, or device. An element defined by "includes / comprises a / an" does not, without further constraint, preclude the existence of additional identical elements within the process, method, article, or device that includes / comprises the element.

[0037] With the large-scale withdrawal of traction batteries, the proper and regulated recycling of these batteries has become a major concern. Improper handling of the tens of thousands of tons of withdrawn traction batteries generated each year can lead to immeasurable environmental pollution.

[0038] Currently in China, the main recycling methods for handling withdrawn traction batteries are regeneration and cascade use. In prior art, when determining the recycling method for withdrawn traction batteries, the main considerations are the remaining capacity, internal resistance, and external damage to the batteries, completely neglecting carbon emissions. Consequently, the final decision on the recycling method for withdrawn batteries can lead to significant carbon emissions and environmental pollution.

[0039] In light of the foregoing, examples in this disclosure provide a method and apparatus for determining the recycling mode of a battery, an electronic device, and a storage medium. By comparing the carbon emissions per single charge-discharge of batteries used in regeneration and of batteries used in cascade to choose the recycling method with less carbon emissions for battery recycling, the removed batteries can be transformed into low carbon battery products to meet the demand of energy storage companies and new energy vehicle manufacturers for low carbon products, ultimately achieving low carbon content and environmental protection.

[0040] The embodiments of this disclosure will be described in detail below with reference to the attached drawings.

[0041] The method and apparatus for determining the recycling method of a battery according to the examples in this disclosure can be implemented by an electronic device. In this solution, the main consideration is low carbon content and environmental protection when determining the recycling method of a battery. By comparing the carbon emissions per single charge-discharge of batteries used in regeneration and those used in cascade, the recycling method with the lowest carbon emissions is selected for battery recycling.Since carbon emissions are affected by factors such as battery cycle number, battery charge-discharge efficiency, battery capacity retention rate, power emission factor, battery nominal capacity and carbon emissions from the recycling process, it is necessary to preconfigure in advance parameters such as battery cycle number, battery charge-discharge efficiency, battery capacity retention rate, power emission factor, battery nominal capacity, carbon emissions from the recycling process, of common batteries in the electronic device in advance.

[0042] The method and apparatus for determining the recycling method of a battery according to the examples in this disclosure are implemented by an electronic device, and the electronic device performs the method for determining the recycling method of a battery according to the examples in this disclosure. In the examples in this disclosure, the electronic device may be, but is not limited to, a personal computer (PC), a laptop computer, a server, or other electronic devices having computing, analysis, and data processing capabilities.

[0043] The method for determining the recycling mode of a battery according to the examples in this disclosure will be described below, based on the fact that predefined battery parameters corresponding to common battery types have been preconfigured in the electronic device. Referring to [Fig. 1], [Fig. 1] shows a schematic flowchart of a method of Determination of a battery recycling method according to an example in this disclosure. The preparation process includes the following steps: Step S101, a battery type of the battery in question is acquired to determine predefined battery parameters corresponding to the battery type, the predefined battery parameters including the number of battery cycles, battery charge-discharge efficiency, battery capacity retention rate, power emission factor, battery nominal capacity and carbon emissions from the recycling process.

[0044] In an example of this disclosure, predefined parameters for common battery types are pre-stored in the electronic device. The predefined parameters include, but are not limited to, the number of battery cycles, the battery charge-discharge efficiency, the battery capacity retention rate, the power emission factor, the battery's nominal capacity, and the carbon emissions from the cycling process.

[0045] When a battery recycling mode is to be determined for a specific battery, the battery type of the battery in question is first obtained, then the corresponding predefined battery parameters are retrieved according to the battery type.

[0046] Step S102, carbon emissions from a loss of power are obtained based on battery type, number of battery cycles, battery charge-discharge efficiency, battery capacity retention rate, power emission factor and battery nominal capacity, carbon emissions from power loss being carbon emissions generated by power loss during battery charging and discharging.

[0047] In an example of this disclosure, first, the electronic device obtains an actual battery capacity based on the nominal battery capacity and the battery capacity retention rate, the actual battery capacity referring to the electrical energy consumed when the actual battery is charged. Second, the electrical energy lost during the battery charge-discharge process is obtained based on the actual battery capacity and the battery charge-discharge efficiency. Finally, the carbon emissions from power loss are obtained based on the electrical energy lost during the battery charge-discharge process and the power emission factor.

[0048] It should be noted that the battery capacity retention rate is used to indicate the ratio between the current battery capacity and the battery's nominal capacity; the battery charge-discharge efficiency is used to indicate the ratio between the electrical energy discharged from the battery and the electrical energy consumed from the battery during charging; the battery's nominal capacity is used to indicate a battery's fresh state capacity and can be obtained by various means, including, but not limited to, scanning a QR code on the battery; and the battery cycle count is used to indicate a battery's charge-discharge times.

[0049] In practical applications, carbon emissions from a power loss can also be calculated using the following formula: = L ( - ADa,^, )-X.EF^ El^ "signs carbon emissions generated by a power loss due to the battery charge-discharge efficiency during battery operation, ADc]mr^e denotes electrical energy consumed by charging the battery, ADDischarge denotes electrical energy discharged by the battery, and EF denotes a power emission factor, which can be assumed to be the grid emission factor of the domestic electrical network, i.e. 0.5810 tCO2l MWh-

[0050] In step S103, the carbon emissions per single charge-discharge of batteries used for regeneration and used in cascade are obtained respectively, as a function of carbon emissions from power loss, carbon emissions from the recycling process and battery life.

[0051] In the examples in this disclosure, a battery after a regenerative use treatment becomes a new battery that is ready to be delivered from the factory, in which case the battery life represents the remaining battery charge-discharge times that the battery can undergo from the time of delivery until the battery is removed, while the battery life after a cascade use treatment refers to the remaining battery charge-discharge times that the battery can undergo from the time of removal until the battery no longer retains any value for cascade use.

[0052] Here, the carbon emissions generated in the battery life cycle can be obtained as a function of the carbon emissions from power loss and the carbon emissions from the recycling process, and then in combination with the battery life, the carbon emissions per single charge-discharge of batteries used in regeneration and cascade can be obtained.

[0053] In step S104, the carbon emissions per single charge-discharge of batteries used in regeneration and cascade are compared to determine the recycling mode with the lowest carbon emissions as the target recycling mode for the battery in question.

[0054] It can be seen that, according to the method for determining the recycling method of a battery provided by the example, by acquiring a battery type from a battery in question to determine predefined battery parameters corresponding to the typeof battery, predefined battery parameters including battery cycle count, battery life, battery charge-discharge efficiency, battery capacity retention rate, power emission factor, battery rated capacity and carbon emissions from the recycling process; obtaining carbon emissions from power loss as a function of battery type, battery cycle count, battery charge-discharge efficiency, battery capacity retention rate, power emission factor and battery rated capacity, carbon emissions from power loss being carbon emissions generated by power loss during battery charging and discharging;obtaining carbon emissions per single charge-discharge of batteries used in regeneration and cascade, respectively, as a function of carbon emissions from power loss, carbon emissions from the recycling process and battery life; and comparing the carbon emissions per single charge-discharge of batteries used in regeneration and cascade, so as to determine the recycling method with the lowest carbon emissions as the target recycling method for the battery in question, the removed batteries can be transformed into low-carbon battery products to meet the demand from energy storage companies and new energy vehicle manufacturers for low-carbon products, ultimately achieving low carbon content and environmental protection.

[0055] Optionally, for predefined battery parameters corresponding to the battery types mentioned in the example above, users can predefine the parameters via an interactive user interface or a third-party server as the execution device for this solution. In one possible example, based on [Fig. 1] and referring to [Fig. 2], prior to step S101, the method further includes the step of: predefine the number of battery cycles, the nominal battery capacity, the battery type, the carbon emissions from the recycling process, the power emission factor, the battery capacity retention rate and the battery charge-discharge efficiency corresponding to each battery type, respectively; in which the battery capacity retention rate and battery charge-discharge efficiency are determined by fitting sampled data from a plurality of battery types.

[0056] Specifically, the sampled data may include: battery lifespan, number of battery cycles, battery charge-discharge efficiency, etc. In the battery recycling process, firstly, the battery packs Recovered batteries are deeply discharged to lower the voltage below the safe dismantling voltage. This deep discharge is necessary to prevent the battery packs from being dismantled while live, which can cause personal injury and spontaneous combustion due to battery damage during dismantling. Once the battery packs have been discharged, they are dismantled by removing the equipment to obtain battery modules. Additionally, if necessary, the battery modules can be broken down into individual battery cells. A charge-discharge tester is used to measure the battery's charge-discharge efficiency, internal resistance, cycle life, and other performance indicators.Batteries are then sampled and selected to evaluate their cycle count, charge-discharge efficiency, and other information under conditions where the capacity retention rate falls below 10% after removal, in order to form sampled data for the battery's cycle count. Subsequently, the sampled data formed from the battery's cycle life are calculated and adapted to determine the battery's capacity retention rate and charge-discharge efficiency.

[0057] Optionally, in practical applications, the power loss during battery charging and discharging is affected by the battery's charge-discharge efficiency, which in turn is related to the number of battery cycles. The battery's charge-discharge efficiency and the number of battery cycles satisfy the following relationship: 2=1.0944^ ° 0245^ 2 denotes the charge-discharge efficiency of the battery and 1 denotes the number of cycles of the battery.

[0058] For the battery charge-discharge efficiency and the number of battery cycles involved in the present solution, empirical values ​​corresponding to each type of battery can be obtained by statistically summarising the charge and discharge data of batteries of different battery types before implementing the present solution.

[0059] In an example in this disclosure, the battery charge-discharge efficiency is determined by fitting sampled data on the number of battery cycles. As shown in [Fig. 3], as the number of battery uses increases, the battery charge-discharge efficiency decreases and the battery discharge capacity decreases.

[0060] Optionally, in practical applications, the actual battery capacity is affected by the battery capacity retention rate, which in turn is related to the number of battery cycles. Three types of batteries are given below as examples for a detailed explanation. The capacity retention rate The battery capacity and the number of battery cycles of a first type of battery, a second type of battery, and a third type of battery satisfy the following relationships: y - -1.3577 x 10' 8 xx 3 + 3.3137 x 10' 5 xx 2 - 0.0246x4- 103.008 A -0.01x+100.61, l <x<2100 -0.0615x+229, x>2100 yc= -8,27719x 10'9 xx3 + 3,6009 x 10'5 x x2 - 0,04805x + 101.753 where X represents the number of battery cycles, y a represents a battery capacity retention rate of the first battery type, yb represents a battery capacity retention rate of the second battery type, and yc represents a battery capacity retention rate of the third battery type.

[0061] For the battery capacity retention rate and the number of battery cycles involved in the present solution, empirical values ​​corresponding to each battery type can be obtained by statistically summarizing the actual battery capacity and nominal battery capacity data for different battery types before implementing the present solution. More specifically, the relationship between the battery capacity retention rate and the number of battery cycles for the first battery type is as shown in [Fig. 4], the relationship between the battery capacity retention rate and the number of battery cycles for the second battery type is as shown in [Fig. 5], and the relationship between the battery capacity retention rate and the number of battery cycles for the third battery type is as shown in [Fig. 6].

[0062] It should be noted that in the examples in this disclosure, the first, second, and third battery types mentioned are examples of battery types provided for illustrative purposes. Battery types may be classified based on battery tests from different manufacturers. The examples in this disclosure do not impose any specific limitations on the classification method for battery types. Different classification methods may yield varying relationships between the battery capacity retention rate and the number of battery cycles.

[0063] Optionally, in practical applications, in order to choose the mode with minimal carbon emissions for recycling, it is necessary to obtain the carbon emissions from two important stages of the battery's life cycle, one of which is the carbon emissions resulting from power loss during battery charging and discharging. The formulas for calculating carbon emissions from power loss for the first battery type and the second battery type are as follows: Gar^^a* EF xy A * (1-z) dx

[0064] f2530 G 4a w = L m A xEFxy A x(lz) dx

[0065] Res ^^ mBxE p % y^^_ z ^ rf x

[0066] [3240 G BCas = i x m B xEFxy B x (1-z) dx

[0067] where G a Reg denotes carbon emissions from a power loss for regenerative use of the first battery type, GA Cas denotes carbon emissions from power loss for cascade use of the first battery type, GB Beg denotes carbon emissions from power loss for regenerative use of the second battery type, GB cas denotes carbon emissions from power loss for cascade use of the second battery type, wR denotes a nominal battery capacity of the first battery type, mB denotes a nominal battery capacity of the second battery type, EF denotes a power emission factor, z denotes a battery charge-discharge efficiency, 4.1 denotes a battery capacity retention rate of the first battery type, and yb denotes a battery capacity retention rate of the second battery type.

[0068] Optionally, in practical applications, the carbon emissions of the recycling process can be obtained directly, or they can be obtained by calculating the carbon emissions of each stage of the recycling process using the following formula: E = ^Mj x EF^ E denotes the carbon emissions from the recycling process, denotes the mass or energy of the raw and auxiliary materials and the energy source used in the steps of the recycling process, and EFj denotes an emission factor for the mass or energy of the raw and auxiliary materials and the energy source used in the steps of the recycling process.

[0069] For the battery recycling process, when the battery is recycled according to different modes, the processing steps involved in the recycling process are different. The battery recycling modes in the application scenario are regenerative use and cascade use.

[0070] Here, cascading use is considered a form of soft disposal, where the battery itself is not completely removed but is no longer suitable for use in new energy vehicles, and can be used in other areas after processing. The battery recycling process for cascading use includes, but is not limited to, transport, dismantling, and testing of performance, battery management system (BMS) evaluation, assembly, packaging and transportation.

[0071] Compared to cascade use, regeneration is considered a severe disposal method, where it is necessary to extract scarce resources from the battery through chemical processes to obtain battery remanufacturing. The battery recycling process for regeneration includes, but is not limited to, packaging, transportation, physical discharge, chemical discharge, dismantling, shredding, pyrolysis, sorting, acid leaching, extraction, precipitation, mixing, calcination, impurity removal, and packaging.

[0072] In order to explain more clearly the method of determining the recycling method for the battery provided by the examples in this disclosure, the first type of battery and the second type of battery will be used as examples for the illustrative description below.

[0073] In this example, assuming that the battery in question for which a recycling method is to be determined is the first type of battery, the nominal capacity of the battery is 75 kWh, the carbon emissions from the recycling process when the battery is subjected to regenerative use are 47.01 kg CO2e / kWh, the carbon emissions from the recycling process when the battery is subjected to cascade use are 16.21 kg CO2e / kWh, the battery life for regenerative use is 2010, the battery life for cascade use is 160, the battery capacity retention rate is approximately 48%, and as can be seen in [Fig. 4], the number of battery cycles is approximately 2370. Therefore, z = 1.0944x^0245 y = - l.3577x 10'8xx3+3.3137x 10'5xx2-0.0246x+ 103.008 f20!0 47.01+] (75x0.58 ixvxf 1-z) dx E R ^.............. J .....20Ï0............ lSx<2010 16W35xO.581xyx(l-zWx After calculation of emissions E c ^..............mh.................... 2010 <x<3240 Carbon emissions for battery regeneration use are 1.47 kg CO2e per cycle, while carbon emissions for cascaded battery use are 2.94 kg CO2e per cycle. Therefore, carbon emissions per single charge-discharge cycle for cascaded use are higher than those for regeneration use; thus, it is suggested that the battery be recycled using regeneration.

[0074] In this example, assuming that the battery in question for which a recycling method must be determined is the second type of battery, the nominal capacity of the The battery has a capacity of 50 kWh, and the carbon emissions from the recycling process when the battery is subjected to regenerative use are 49.21 kg CO2e / kWh.

[0075]

[0076]

[0077]

[0078]

[0079] The battery is subjected to cascade use, resulting in 16.86 kg CO2e / kWh. The battery life for regenerative use is 2100 hours, the battery life for cascade use is 490 hours, the battery capacity retention rate is approximately 61%, and as can be seen in [Fig. 5], the number of battery cycles is approximately 2790. Therefore, z = l.0944r«'0245 y„ = -0.01x4-100.61 Kx£ 2100 y „ = - 0.00615x + 229 2100 < x < 3240 Case f2l00 49.21+1.5OxO.581xy D x( U) dx TT__1________________Kes ________ 1 n Reg- 2100 1 f324O 16.86+ ,--n50x0.581xy xQ-j) dx rt • 2.OÜ v Cas Case 490 2100 <x< 3240

[0080] After calculation, the carbon emissions for regenerative battery use are 1.48 kg CO2e per cycle, while the carbon emissions for cascade battery use are 2.94 kg CO2e per cycle. Therefore, the carbon emissions per single charge-discharge cycle for cascade use are higher than those for regenerative use; thus, it is suggested that the battery be recycled in regenerative mode.

[0081] Based on the same inventive concept, a further example in this disclosure provides a device for determining the recycling mode for a battery. With reference to [Fig. 7], [Fig. 7] shows a schematic diagram of a battery recycling mode determination device 200 according to an example in this disclosure. The battery recycling mode determination device is implemented by an electronic device. The battery recycling mode determination device 200 comprises an acquisition module 201, a computing module 202, and a decision module 203.

[0082] The acquisition module 201 is configured to acquire a battery type from a battery in question to determine predefined battery parameters corresponding to the battery type, the predefined battery parameters including the number of battery cycles, battery life, battery charge-discharge efficiency, battery capacity retention rate, power emission factor, battery nominal capacity and carbon emissions from the recycling process.

[0083] The calculation module 202 is configured to obtain carbon emissions from power loss as a function of battery type, number of battery cycles, battery charge-discharge efficiency, battery capacity retention rate, power emission factor and battery nominal capacity, carbon emissions from power loss being carbon emissions generated by power loss during battery charging and discharging, and to obtain carbon emissions per single charge-discharge of batteries used in regeneration and cascade, respectively, as a function of carbon emissions from power loss, carbon emissions from a recycling process and battery life.

[0084] The decision module 203 is configured to compare the carbon emissions per single charge-discharge of batteries used in regeneration and cascade, in order to determine the recycling mode with the lowest carbon emissions as the target recycling mode for the battery in question.

[0085] Optionally, the acquisition module 201 is further configured to initialize predefined battery parameters, and predefine the number of battery cycles, battery life, nominal battery capacity, battery type, carbon emissions from a recycling process, power emission factor, battery capacity retention rate and battery charge-discharge efficiency corresponding to each battery type, respectively; the battery capacity retention rate and battery charge-discharge efficiency being determined by fitting sampled data from a plurality of battery types.

[0086] Optionally, the calculation module 202 is specifically configured to obtain the battery charge-discharge efficiency, and the battery charge-discharge efficiency and the number of battery cycles satisfy the following relationship: — i O944x'° 0245' °ù Z designates the charge-discharge efficiency of the battery etx designates the number of cycles of the battery.

[0087] Optionally, the calculation module 202 is specifically configured to obtain the battery capacity retention rate, the battery type including a first battery type, a second battery type and a third battery type, and the battery capacity retention rate and the number of battery cycles satisfying the following relationships: y = -1.3577 x 10' 8 xx 3 4-3,3137 x 10' 5 xx 2 -0.0246x4-103.008 _ |-0.0lx+ 100.61, l <x<2100 y B~\ -0.0615x + 229, x>2100

[0088]

[0089]

[0090]

[0091]

[0092]

[0093] yc- -8,27719x 10 9 xx3 +3,6009 x 10'5xx2-0,04805x + 101,753™* denotes the number of battery cycles, y a denotes a battery capacity retention rate of the first battery type, yg denotes a battery capacity retention rate of the second battery type, and yc denotes a battery capacity retention rate of the third battery type. Optionally, the calculation module 202 is specifically configured to obtain carbon emissions from power loss, the battery type including a first battery type and a second battery type, and the formulas for calculating carbon emissions from power loss are as follows: Station g = ^ ] m A 'xEFx y^x (1-z) dx <•2530 m A xEFxy A x(l~z) dx G BReg = f l m B xEFxy B x (i-z~) dx <•3240 G B Cas = L ^B X EF X y B X ( 1 - z) dx where GA Reg denotes carbon emissions from power loss for regenerative use of the first battery type, GA Cas denotes carbon emissions from power loss for cascade use of the first battery type, GB Reg denotes carbon emissions from power loss for regenerative use of the second battery type, GB cas denotes carbon emissions from power loss for cascade use of the second battery type, mA denotes a nominal battery capacity of the first battery type, mB denotes a nominal battery capacity of the second battery type, EF denotes a power emission factor, z denotes a battery charge-discharge efficiency, denotes a battery capacity retention rate of the first battery type, and yB denotes a battery capacity retention rate of the second battery type. Optionally, calculation module 202 is specifically configured to obtain carbon emissions from the battery recycling process, for which the formula is as follows: E^M. x EFjOÙ E denotes carbon emissions from the recycling process, denotes a mass or energy of the raw and auxiliary materials and the energy source used in the steps of the recycling process, and EFt denotes an emission factor for the mass or energy of the raw and auxiliary materials and the energy source used in the steps of the recycling process.

[0094] With reference to [Fig. 8], which shows a schematic diagram of an electronic device 100 according to an example in this disclosure. The electronic device 100 may be a PC, a laptop computer, or a server, etc. The electronic device 100 comprises a memory 110, a processor 120, and a communication module 130. The memory 110, the processor 120, and the communication module 130 are electrically connected to each other directly or indirectly for data transfer or interaction. For example, these components may be electrically connected to each other by at least one communication bus or signal line.

[0095] Here, the memory 110 is configured to store programs or data. The memory 110 can be, but is not limited to, random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), etc.

[0096] The processor 120 is configured to read / write data or programs stored in memory 110 and execute corresponding functions. For example, when a computer program stored in memory 110 is executed by the processor 120, the method for determining the recycling mode of a battery revealed in the examples described above can be carried out.

[0097] The communication module 130 is configured to establish a communication connection between the electronic device 100 and other communication terminals across a network and to send and receive data across the network.

[0098] It should be understood that the configuration shown in [Fig. 8] is only a schematic diagram of the configuration of the electronic device 100. The electronic device 100 may alternatively comprise more or fewer components than those shown in [Fig. 8] or have a different configuration from that shown in [Fig. 8]. The components shown in [Fig. 8] may be implemented in hardware, software, or a combination thereof.

[0099] Another example of this disclosure provides a computer-readable storage medium storing a computer program which, when executed by the processor 120, causes the processor to perform the battery recycling method determination process disclosed in any of the examples described above.

[0100] In summary, the examples in this disclosure provide a method and apparatus for determining the recycling method of a battery, an electronic device, and a storage medium. The method is implemented by the electronic device, and the method comprises the following steps: acquiring a battery type of a battery in question in order to determine predefined battery parameters corresponding to the battery type, the predefined battery parameters including the number of battery cycles, battery life, battery charge-discharge efficiency, battery capacity retention rate, power emission factor, battery nominal capacity and carbon emissions from the recycling process; obtain the carbon emissions from power loss as a function of battery type, number of battery cycles, battery charge-discharge efficiency, battery capacity retention rate, power emission factor and battery nominal capacity, the carbon emissions from power loss being carbon emissions generated by a power loss during a battery charge and discharge;to obtain carbon emissions per single charge-discharge of batteries used in regeneration and cascade, respectively, as a function of carbon emissions from power loss, carbon emissions from the recycling process, and battery lifespan; and to compare the carbon emissions per single charge-discharge of batteries used in regeneration and cascade, in order to determine the recycling method with the lowest carbon emissions as the target recycling method for the battery in question. Thus, the removed batteries can be transformed into low-carbon battery products to meet the demand from energy storage companies and new energy vehicle manufacturers for low-carbon products, ultimately achieving low carbon content and environmental protection.

[0101] In the examples provided by this disclosure, it should be understood that the disclosed device and method can also be implemented in different ways. The device examples described above are only illustrative; for example, the flowcharts and functional diagrams in the drawings show possible examples of the architecture, functionality, and operation of the device, method, and computer program product according to various examples in this disclosure. In this regard, each block in a flowchart or functional diagram can represent a module, program segment, or part of code containing one or more executable instructions to perform a specified logical function. It should also be noted that in some alternative examples, the functions shown in the blocks may also occur in a different order than shown in the drawings.For example, two successive blocks can actually be executed in near parallel, or they can sometimes be executed in reverse order, depending on the functionality involved. It should also be noted that each block in the functional diagram and / or flowchart and the combinations of... Blocks in the functional diagram and / or flowchart can be implemented in a dedicated hardware system that performs specified functions or actions, or can be implemented in a combination of dedicated hardware and computer instructions.

[0102] In addition, the functional modules in the examples in this disclosure may be integrated to form an independent unit or may exist as separate modules, or two or more of the modules may be integrated to form an independent unit.

[0103] If the functions are implemented in the form of functional software modules and sold or used as standalone products, they may be stored on a computer-readable storage medium. Based on this understanding, the technical solutions of this disclosure in substance, or the parts that contribute to existing technology or a portion of the technical solutions, may be implemented in the form of a software product, which is stored on a storage medium and includes a number of instructions to cause a computing device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the process described in the examples in this disclosure.The storage media mentioned above includes: various media that can store program code, such as a USB flash drive, a portable hard drive, read-only memory (ROM), random-access memory (RAM), a magnetic disk, or an optical disk.

[0104] The foregoing is merely a description of some preferable examples of this disclosure and is not intended to limit this disclosure. It will be apparent to those skilled in the art that various modifications and variations may be made to this disclosure. All modifications, equivalent substitutions, improvements, etc., made in the spirit and principles of this disclosure shall fall within the scope of protection of this disclosure.

Claims

1. Demands Method for determining a recycling method for a battery, characterized in that the method is implemented by an electronic device, and comprises the following steps: acquiring a battery type of a battery in question to determine predefined battery parameters corresponding to the battery type, the predefined battery parameters including the number of battery cycles, battery life, battery charge-discharge efficiency, battery capacity retention rate, power emission factor, nominal battery capacity and carbon emissions from the recycling process; to obtain carbon emissions from power loss as a function of battery type, number of battery cycles, battery charge-discharge efficiency, battery capacity retention rate, power emission factor and battery nominal capacity, carbon emissions from power loss being carbon emissions generated by power loss during battery charging and discharging; to obtain carbon emissions per single charge-discharge of batteries used in regeneration and batteries used in cascade, respectively, as a function of carbon emissions from power loss, carbon emissions from a recycling process and battery life; and to compare the carbon emissions per single charge-discharge of batteries used in regeneration and batteries used in cascade, in order to determine the recycling method with the lowest carbon emissions as the target recycling method for the battery in question; in which a formula for calculating carbon emissions from the recycling process is as follows: = V Mr x EF; where E denotes carbon emissions from the recycling process, and denotes a mass or energy of raw and auxiliary materials and energy source used in the steps of the recycling process, and EF{ denotes an emission factor for the mass or energy of raw and auxiliary materials and energy source used in the steps of the recycling process.

2. A method for determining a battery recycling method according to claim 1, characterized in that, prior to the step of acquiring the battery type of the battery in question, the method further comprises the following step: predefining the number of battery cycles, battery life, nominal battery capacity, battery type, carbon emissions from the recycling process, power emission factor, battery capacity retention rate and battery charge-discharge efficiency corresponding to each battery type, respectively, wherein the battery capacity retention rate and battery charge-discharge efficiency are determined by fitting sampled data from a plurality of battery types.

3. Method of determining a battery recycling method according to claim 1, characterized in that the battery charge-discharge efficiency and the number of battery cycles satisfy the following relationship: z=l,O944xA0245 where z denotes the battery charge-discharge efficiency and x denotes the number of battery cycles.

4. A method for determining a battery recycling method according to claim 1, characterized in that the battery type comprises a first battery type, a second battery type, and a third battery type, and the battery capacity retention rate and the number of battery cycles satisfy the following relationships: y = -l.3577x 10⁸ xx³ + 3.3137x 1(T⁵ xx² - 0.0246* + 103.008 A [-0.01x⁴ - 100.61, l <x<2100 yB~[ - 0,0615x 4-229, x> 2100 yc~ -8.27719x 10-9xx3 +3.6009 x 10'5 xx2-0.04805x4-101.753 where x denotes the number of battery cycles, yb denotes the capacity retention rate of the first battery type, yb denotes the battery capacity retention rate of the second type of battery and Je denotes the battery capacity retention rate of the third type of battery.

5. A method for determining a battery recycling method according to claim 1, characterized in that the battery type comprises a first battery type and a second battery type, and the formulas for calculating carbon emissions from power loss are as follows: GAReg = μmAxEFxyAx (1-z) dx GAcas = μmAxEFxyAx (1-z) dx GBReg = μmBxEFxyBx (1-z) dx where GAReg denotes carbon emissions from power loss for use in regeneration of the first battery type, GAcas denotes carbon emissions from power loss for cascade use of the first battery type, and GBReg denotes carbon emissions from power loss for regeneration of the second battery type. second type of battery,GBCas denotes carbon emissions from power loss due to cascaded use of the second battery type, mA denotes a nominal battery capacity of the first battery type, mB denotes a nominal battery capacity of the second battery type, EF denotes a power emission factor, ' denotes a battery charge-discharge efficiency, denotes a battery capacity retention rate of the first battery type, and yb denotes a battery capacity retention rate of the second battery type.

6. Device for determining a battery recycling mode, characterized in that the device is implemented by an electronic device, and comprises: an acquisition module configured to acquire a battery type from a battery in question to determine predefined battery parameters corresponding to the battery type, the predefined battery parameters including the number of battery cycles, the, battery life, battery charge-discharge efficiency, battery capacity retention rate, power emission factor, battery nominal capacity and carbon emissions from the recycling process; a calculation module configured to obtain carbon emissions from power loss as a function of battery type, number of battery cycles, battery charge-discharge efficiency, battery capacity retention rate, power emission factor, and battery nominal capacity, with carbon emissions from power loss being carbon emissions generated by power loss during battery charging and discharging, and to obtain carbon emissions per single charge-discharge of batteries used in regeneration and cascade, respectively, as a function of carbon emissions from power loss, carbon emissions from a recycling process, and battery life; and A decision module configured to compare the carbon emissions per single charge-discharge of batteries used in regeneration and batteries used in cascade, in order to determine the recycling method with the lowest carbon emissions as the target recycling method for the battery in question. in which a formula for calculating carbon emissions from the recycling process is as follows: E = Mj. XEF[ where E denotes carbon emissions from the recycling process, Mj denotes mass or energy of raw and auxiliary materials and energy source used in the steps of the recycling process, and EFi denotes emission factor for mass or energy of raw and auxiliary materials and energy source used in the steps of the recycling process.

7. Device for determining a battery recycling mode according to claim 6, characterized in that the acquisition module is further configured to initialize predefined battery parameters and predefine the number of battery cycles and the duration battery life, nominal battery capacity, battery type, carbon emissions from a recycling process, power emission factor, battery capacity retention rate and battery charge-discharge efficiency corresponding to each battery type, respectively; the battery capacity retention rate and battery charge-discharge efficiency being determined by fitting sampled data from a plurality of battery types.

8. Electronic device, characterized in that the device comprises a memory and a processor, wherein the memory is configured to store a computer program, and the processor is configured to execute the method of determining a battery recycling mode according to any one of claims 1 to 5 when the computer program is called.

9. Computer-readable storage medium storing a computer program on it, characterized in that the computer program, when executed by a processor, implements the method for determining the recycling method of a battery according to any one of claims 1 to 5.

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