WO2025010459A1 - Verfahren und system zur ermittlung einer ladestromgrenze für einen ladeprozess einer wiederaufladbaren batterie - Google Patents
Verfahren und system zur ermittlung einer ladestromgrenze für einen ladeprozess einer wiederaufladbaren batterie Download PDFInfo
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- WO2025010459A1 WO2025010459A1 PCT/AT2024/060265 AT2024060265W WO2025010459A1 WO 2025010459 A1 WO2025010459 A1 WO 2025010459A1 AT 2024060265 W AT2024060265 W AT 2024060265W WO 2025010459 A1 WO2025010459 A1 WO 2025010459A1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
- H02J7/62—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements against overcurrent
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/80—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including monitoring or indicating arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a method for determining a charging current limit for a charging process of a rechargeable battery device, in particular at low operating temperatures.
- the invention also relates to a computer program product for computer-based execution of the steps of the method according to the invention and also to a control system for controlling a charging process of a rechargeable battery device.
- the invention also relates to a battery charging system with the control system according to the invention.
- lithium plating One of the underlying principles of degradation in lithium-ion batteries is so-called lithium plating.
- Lithium plating is the formation of metallic lithium on the anode of lithium-ion batteries during the charging process.
- the deposit on the anode reduces the amount of lithium ions available in the battery's electrolyte.
- a barrier layer is formed on the anode to prevent the free diffusion of lithium ions into the anode.
- Such storage can also be referred to as intercalation.
- lithium plating is that at high charging currents the surface of the anode can become enriched with lithium ions, meaning that there are more lithium ions on the anode than can be stored in it. This can lead to the lithium ions reacting to form metallic lithium and being deposited on the anode. This effect is further increased by the presence of low charging temperatures, as this slows down the diffusion rate of the lithium ions into the anode.
- a first aspect of the invention relates to a method for determining a charging current limit for a charging process of a rechargeable battery device.
- the method has a step in which measurement parameters are determined on the battery device.
- the measurement parameters include at least an operating temperature, a battery voltage and a battery current of the battery device.
- battery parameters are determined from a physics-based battery model for mapping physical processes taking place in the battery device. At least one expected temperature progression of the operating temperature and an electrode voltage are determined as the battery parameters on the basis of the recorded measurement parameters as input parameters of the battery model.
- prediction parameters for the occurrence of metal plating on an electrode of the battery device are determined from a, in particular data-driven, prediction model.
- At least one predicted occurrence time of metal plating is determined on the basis of at least the determined battery parameters as input parameters of the prediction model as the prediction parameters.
- at least one control parameter for controlling a charging process is determined from a, in particular data-driven, control model.
- at least the charging current limit is determined as the at least one control parameter and the determined charging current limit is output.
- output can be understood in particular as providing at least one value. This can be understood, for example, as simply providing at least one value, but also as outputting at least one value for further display and/or processing, in particular control.
- the output charging current limit forms an upper limit of the charging current.
- control parameters for a charging process of a rechargeable battery device can be determined.
- the control parameters can in particular be parameters that allow a battery charging process to be controlled and/or regulated.
- a rechargeable battery device can in particular be understood as a rechargeable, electrochemical power storage device.
- measurement parameters are determined on the battery device.
- the measurement parameters are recorded in particular by physical measurement on the battery device.
- the operating temperature can be determined as a temperature inside the battery device.
- the operating temperature can also be an average of several cell temperatures, a housing temperature or the like.
- the battery voltage can be tapped as a total voltage at the connection contacts of the battery device and/or recorded by determining individual cell voltages.
- the battery current can be understood as a total current that can be provided by the battery device at any given time.
- battery parameters are determined from a physics-based battery model to represent physical processes occurring in the battery device.
- the physics-based battery model can represent the physical processes occurring in the battery device, for example, using equations, constants specifications or other contexts. Using the recorded measurement parameters, this physics-based battery model can determine battery parameters that characterize the state of the battery device or the state of components of the battery device from a physical point of view.
- the operating parameters determined contain at least an expected temperature progression of the operating temperature and an electrode voltage.
- the expected temperature progression is to be understood in particular as a forecast of the temperature progression over a period of time in the future.
- the operating temperature and its progression over the next 5 seconds can be determined as operating parameters using the physics-based battery model.
- the period for the forecast preferably begins directly after the recording time of the measurement parameters.
- the electrode voltage can in particular be an estimate of a current value. However, it is also conceivable that the electrode voltage can be understood as a predicted value for a period in the future.
- the battery parameters are used in a, in particular data-driven, prediction model to determine a predicted occurrence time for the occurrence of metal plating on at least one of the electrodes of the battery device.
- the occurrence time can be designed, for example, as an absolute date in the future, as the remaining operating time until metal plating occurs, as remaining charging cycles or the like.
- the predicted occurrence time of metal plating can be determined from a prediction model based on at least the determined battery parameters and the recorded measurement parameters as input parameters of the prediction model.
- Metal plating can be understood in particular as the formation of metal deposits on one of the electrodes of a metal-ion battery.
- a sodium deposit can occur in a sodium-ion battery or a calcium deposit can occur in a calcium-ion battery.
- the prediction parameters are determined using a model, in particular a data-driven model.
- a data-driven model can be understood in particular as a model in which relationships between input and output variables are determined and/or modeled using data.
- At least one control parameter for controlling a charging process is determined from a control model, in particular a data-driven one.
- At least the charging current limit is determined as the at least one control parameter based on the measurement parameters, the battery parameters and the prediction parameters as input parameters of the control model.
- a weighting in the sense of the invention can be understood in particular as a combination of the measurement parameters, the battery parameters and the prediction parameters in which a weight is assigned to the respective parameters.
- the weights of the respective parameters can differ from one another.
- the weights can, for example, reflect the influence of the individual parameters on the occurrence of metal plating.
- the existing complexity is also controlled here by a model, in particular a data-driven one. Unnecessary limitations of the charging current during a fast charging phase are therefore no longer necessary.
- the process can be implemented using conventional battery infrastructure.
- the at least one control parameter for controlling a charging process in particular for a rapid charging process at operating temperatures below 15° Celsius, or 10° Celsius, or 5° Celsius, or 0° Celsius, or -5° Celsius, can be determined.
- a fast charging process can be understood in particular as a charging process with a charging power of more than 50kW.
- control parameters for controlling the charging process can be determined, in particular heating control parameters for controlling heating of the battery device.
- control parameters can have heating control parameters for controlling preheating of the battery device.
- the heating control parameters can preferably be provided for internal pulse rate heating of the battery device.
- the heating control parameters can preferably have at least one activation and/or deactivation of an external or internal heater, one activation of heating, one deactivation of heating, a preheating time, a preheating amplitude, a charging current frequency, a pulse width of a heating charging current, a discharge current frequency, a pulse width of the discharge current, a battery target temperature, an operating temperature limit value for activating preheating of the battery device, or an operating temperature limit value for deactivating preheating of the battery device.
- the charging current limit be adjusted, but it is also possible to actively influence the charging process and/or the battery device.
- an internal or external heating of the battery device can be activated or deactivated.
- the invention also makes it possible to weigh up whether After heating, an overall higher charging current can be achieved, which can compensate for time losses of an initial preheating or preheating phase.
- the battery model can be provided as an analytical model for determining an electrochemical state of the battery device, a Kalman filter, a Doyle-Fuller-Newman model and/or as a single particle model.
- An analytical model can be understood in particular as a model in which relationships between input and output variables are determined and/or modeled using mathematical relationships.
- the above-mentioned configurations of the battery model allow an analytically precise description of a current and possibly future state of the battery device.
- other indicators for the occurrence of metal plating can also be determined more precisely analytically. Examples of such indicators include a gradually decreasing discharge voltage, an increase in electrode resistance, an increase in electrode overpotential, or a change in electrolyte polarization.
- control model, the prediction model, or the control model and the prediction model can be based on a machine learning method, preferably on a reinforcement learning method.
- the charging current limit can be determined as one of the control parameters based on a weighting of the measurement parameter, the battery parameters and the prediction parameters as input parameters of the control model and in particular the weighting of the input parameters of the control model can be determined by means of machine learning in at least two steps.
- a learning step an initial weighting can be determined as the weighting.
- the weighting can be determined during the charging process, wherein in this step the weighting is adjusted based on at least the measurement parameters.
- the weighting can be continuously adjusted in the revaluation step.
- a weighting of the input parameters of the prediction model can be determined by means of machine learning in at least two steps.
- an initial weighting can be determined as the weighting and in a re-evaluation step, the weighting can be determined during the loading process in which the weighting can be adjusted based on at least the measurement parameters.
- the weighting can be adjusted continuously in the re-evaluation step.
- the method can be provided with a high degree of accuracy and adapted to the respective process or to the respective battery model. Due to the configuration, according to which the weighting can be continuously adjusted, continuous learning of the models, especially data-driven ones, is possible. This also allows unavoidable aging processes of the battery device or changes due to damage to be taken into account.
- the weighting of the input parameters of the control model can also be determined from a time-varying prioritization of the input parameters and a time-varying prioritization of the output control parameters.
- the prioritization of the input parameters of the control model can preferably be carried out to assess a risk of metal plating occurring.
- the prioritization of the output control parameters can preferably be carried out to assess the ability to counteract the occurrence of metal plating with the respective control parameters. Prioritization can be determined in each case based on a comparison of current values of at least the measurement parameters and/or the battery parameters with relatively historical values of the output control parameters.
- the model can not only take into account a relationship between output values and input values, but also their importance to each other and learned. In this way, the control behavior can be optimized and, if possible, determined as a compromise between conflicting requirements.
- the measurement parameters may further comprise at least one cell voltage of one or more cells of the battery device as the battery voltage, an occurring charging current, or several locally different operating temperatures.
- the accuracy of the model results and thus of the determined control parameters can be further increased. Furthermore, the influence of measurement inaccuracies or outliers in the measurement data can be reduced.
- the battery parameters may further comprise at least a state of charge of the battery device, an electrode overpotential, or a state of health of the battery device.
- the expected temperature progression of the operating temperature may preferably comprise a future temporal progression of an operating temperature at one or different sections of the battery device.
- the prediction parameters may further comprise a predicted remaining charging time.
- control model Further information for controlling the charging process can be determined, which can be used by the control model and/or by a user of the process.
- control parameters can further comprise at least one activation of the charging process, one deactivation of the charging process, a pulse width of a charging current, or a duration of a charging current.
- the battery model can have a battery temperature model for mapping a temporal progression and/or a local profile of the at least one operating temperature of the battery device.
- the battery model can have a battery state model for the preferably numerical mapping of chemical and/or electrical processes in the battery device.
- the battery state model can preferably have at least one initial ion concentration in an electrolyte of the battery device, a diffusion rate of ions into one of the electrodes, a reaction coefficient of the chemical reactions taking place in the battery device, or an electrical conductivity of an electrolyte provided in the battery device as the input parameters.
- the accuracy of the analytically determined battery parameters can be increased, so that an overall improvement in the determination of the control parameters can be achieved.
- the battery device can be a lithium-ion battery with preferably one or more battery cells.
- lithium plating can occur as the metal plating.
- the electrode can be an anode.
- the electrode voltage can be an anode voltage.
- the anode can preferably comprise graphite and/or metal.
- This provides a determination of the charging current limit for lithium-ion batteries.
- a further aspect of the present invention relates to a computer program product which has instructions which, when the program is executed by a computer, cause the computer to carry out one or more of the steps of the method described above.
- a further aspect of the present invention relates to a control system for determining a charging current limit of a rechargeable battery device.
- the control system has a measuring module for recording measurement parameters on the battery device.
- the measurement parameters include at least an operating temperature, a battery voltage and a battery current of the battery device.
- the control system also has a battery status module for determining battery parameters from a physics-based battery model for mapping physical processes taking place in the battery device.
- the battery model has at least the measurement parameters as input parameters.
- the battery parameters are at least an expected temperature progression of the operating temperature and an electrode voltage.
- the control system also has a prediction module for determining prediction parameters for the occurrence of metal plating on an electrode of the battery device from a, in particular data-driven, prediction model.
- the prediction model has at least the battery parameters as input parameters.
- the prediction parameters have at least one predicted onset time for the metal plating.
- the control system also has a control determination module for determining at least one control parameter for controlling the charging process from a, in particular data-driven, control model.
- the control model has the measurement parameters, the battery parameters and the prediction parameters as input parameters, wherein the at least one control parameter is based in particular on a weighting of these input parameters.
- the at least one control parameter has at least one charging current limit.
- the charging current limit can be determined as a time profile.
- the control system also has an output module for outputting the determined charging current limit in order to control the charging process, in particular based on the at least one control parameter.
- the measuring module can have at least one current sensor, a voltage sensor and/or a temperature sensor.
- control system and the computer program product can achieve the same technical effects and advantages as have already been described for the aforementioned method.
- control parameters for a rapid charging process of a battery device at low temperatures can be determined precisely.
- precise control of the charging process is enabled.
- the measuring module and/or the battery status module can be provided on a first computing unit.
- the measuring module and/or the battery status module can be provided on a battery control unit of the battery device.
- the prediction module and/or the control determination module can be provided on a second computing unit.
- the second computing unit can be provided differently from the first computing unit.
- the prediction module and/or the control determination module can be provided on an external server or cloud server.
- the models especially data-driven ones, can be operated on an external computer, which can have higher computing power. This can increase the speed of determining the charging current limit. This makes it possible, for example, to provide the control system as a real-time capable system.
- a further aspect of the invention relates to a battery charging system.
- the battery charging system has a rechargeable battery device with at least one battery cell.
- the battery charging system also has charging connections for coupling electrodes of the battery device to an electrical charging device in order to electrically charge the battery device with a charging current.
- the battery charging system also has the aforementioned control system.
- the output charging current limit is specified as an upper limit of the charging current by the control system.
- the aforementioned battery charging system can achieve the same technical effects and advantages as have already been described for the aforementioned method, the aforementioned computer program product and the aforementioned control system.
- a rapid charging process of a battery device at low temperatures can be precisely controlled, thereby reducing the risk of metal plating occurring.
- Fig. 1 shows an embodiment of a method according to the invention
- Fig. 2 shows an embodiment of a control system according to the invention
- Fig. 3 shows another embodiment of a control system according to the invention
- Fig. 4 shows another embodiment of a control system according to the invention
- Fig. 5 shows an embodiment of a battery charging system according to the invention.
- Figure 1 shows exemplary steps of a method 100 according to the invention, from which a sequence of commands of a computer program product according to the invention can also be derived by way of example.
- Figures 2 to 5 each show exemplary different embodiments of a control system 10 according to the invention.
- Figure 5 shows an embodiment of a battery charging system 90 according to the invention.
- the method 100 in Figure 1 is designed to determine a charging current limit for influencing a charging process of a rechargeable battery device 1000, and for this purpose has a series of steps which can be run through iteratively during a charging process. Preferably, the steps can also be run through repeatedly and continuously. Thus, the value of the charging current limit can change or remain the same in the next iteration.
- a measuring step S20 is thus carried out in which measurement parameters MP are determined on the battery device 1000.
- the measurement parameters MP comprise at least an operating temperature, a battery voltage and a battery current of the battery device 1000.
- a battery state determination step S30 is carried out in which battery parameters BP are determined from a physics-based battery model.
- the physics-based battery model is designed to depict physical processes that take place in the battery device 1000.
- the battery parameters BP include an expected temperature progression of the operating temperature and an electrode voltage of the battery device 1000.
- prediction parameters VP for the occurrence of metal plating on an electrode 1001, 1002 of the battery device 1000 are determined from a, in particular data-driven, prediction model.
- the prediction parameters VP comprise at least one predicted occurrence time for the metal plating on an electrode of the battery device 1000 and are determined on the basis of at least the battery parameters BP as input parameters of the prediction model.
- control parameters KP sought for controlling the charging process are determined from a control model, in particular a data-driven one.
- the control parameters KP comprise at least one charging current limit.
- the control parameters are determined based on a weighting of the measurement parameters MP, the battery parameters BP and the prediction parameters VP as input parameters of the control model using the control model.
- step S60 the charging current limit determined in this way is output to control the charging process.
- the prediction model and the control model are a model, in particular a data-driven model, and not an analytical model.
- the prediction model can be designed, for example, as an artificial neural network, as a Markov model, as logistic regression or as a decision tree-based algorithm.
- An input layer in which each neuron represents the input features can be provided.
- intermediate layers and an output layer with output features can be provided.
- the individual layers can be connected to one another via weightings and input matrices.
- the input characteristics of the predictive model may be, for example, an anode overvoltage, a state of health of the battery device 1000, a cell voltage, or temperatures associated with various segments of the battery cell 1003.
- the output characteristics of the predictive model may be an estimated charge duration or the predicted onset time to a metal plating event.
- the predictive model may output as the predicted onset time that metal plating is expected to occur within the next 30 seconds.
- the control model can preferably simulate a controller for the operating temperature of the battery device 1000 and the charging current.
- a suitable heating configuration for a preheating phase of the battery device 1000 can be determined from the control model.
- charging and discharging pulses to be set and their pulse frequency can be determined.
- the control model can preferably be based on reinforcement learning.
- the requirements arising during the charging process can be defined, for example, as a Markov decision process.
- a Markov decision process comprises an environment, states of the environment and executable actions from which a choice can be made.
- preheating and short charging times of the battery device 1000 can be defined as components of a Markov environment.
- the charging time and the prediction of the occurrence of metal plating can be defined as states of the environment.
- the manipulation of the preheating, the configuration of the charging and discharging pulses and the charging current limit can be defined as executable actions. In this case, for example, a last assumed value can be either kept the same, reduced or increased as an action.
- the control model is preferably designed in such a way that the choice of actions is not based on chance, i.e. the choice is deterministic.
- the weightings or other parameters for the models, in particular data-driven models can be determined using a sufficient amount of training data sets.
- the weightings or parameters determined and trained in this way can be validated using a validation data set. It is preferred that the training and validation data sets come from real test environments.
- the training step can be considered completed when the accuracy of the weightings or other parameters only increases.
- the training step can be considered completed when the absolute error between the validation data sets and the data sets calculated from the models, in particular data-driven models, has been sufficiently reduced.
- Continuous learning and dynamic adjustment of the weightings can be achieved, for example, in a re-evaluation step S42, S52.
- a re-evaluation step S42, S52 for example, past data and parameters are analyzed and related to the output values of the prediction model or the control model.
- FIG. 2 shows an example of the control system 10.
- the control system 10 is suitable and designed for controlling a rapid charging process of a rechargeable battery device, such as the aforementioned battery device 1000.
- the battery device 1000 may in particular be a lithium-ion battery.
- the battery device 1000 is shown as an example in Figure 4.
- the battery device 1000 can have one or more battery cells 1003.
- the voltage potential of the battery cells 1003 can be reversibly adjustable.
- the individual battery cells 1003 can be connected together as a voltage and/or current source.
- the battery device 1000 can have two electrodes 1001, 1002 for power output or power consumption. Furthermore, it is also conceivable that the battery device 1000 has further electrodes for potential and current measurements. It is also conceivable that the battery device 1000 can be part of the control system 10.
- the control system 10 has a measuring module 20 for detecting the measurement parameters MP on the battery device 1000.
- the measuring module 20 or the battery device 1000 can have sensors which are suitable for detecting the measurement parameters. Further details on the sensors are described in the following description of Figure 4.
- the control system 10 also has a battery status module 30 for determining the battery parameters BP.
- the battery status module 30 has a physics-based battery model. With the physics-based battery model, for example, physical processes taking place in the battery device 1000 can be described in formulas and expressed numerically. It is clear from Figure 2 that the battery model has at least the measurement parameters MP as input parameters and the battery parameters BP as output parameters.
- the battery status module 30 and the measuring module 20 can both be provided on a first computing unit 11.
- the first computing unit 11 can be a battery control unit, for example.
- control system 10 also has a prediction module 40 for determining prediction parameters VP for the occurrence of metal plating on an electrode 1001, 1002 of the battery device 1000 from a, in particular data-driven, prediction model.
- prediction model can have the measurement parameters MP as input parameters in addition to the battery parameters BP. It is also conceivable to use only the measurement parameters MP as input parameters of the prediction model.
- control system 10 has a control determination module 50 for determining the control parameters KP for controlling the charging process with a control model, in particular a data-driven one.
- control model has the measurement parameters MP, the battery parameters BP and the prediction parameters VP as input parameters.
- the control determination module 50 weights these input parameters in order to determine the at least one control parameter KP.
- control system 10 has an output module 60 for outputting the at least one control parameter KP in order to control the charging process based on the at least one control parameter KP.
- the output module 60 can be designed as a data interface or a data bus for transmitting data to other devices outside the control system. Such other devices can be, for example, the battery device 1000 or an external battery charging device.
- the prediction module 40, the control determination module 50 and/or the output module 60 can each be provided on a second computing unit 12.
- the second computing unit 12 can be a cloud server.
- Figure 3 shows the control system 10 with a configuration similar to Figure 2. Similarities between the embodiments will therefore not be discussed below.
- Figure 3 discloses a preferred embodiment of the battery condition module 30.
- the battery condition module 30 shown as an example in Figure 3 has a battery temperature model 31 and a battery condition model 32 as the battery model.
- an expected temporal progression of a temperature of the battery device 1000 can be determined as a temperature parameter TP.
- a local profile of a temperature of the battery device 1000 can be analytically determined as a further component of the temperature parameter TP.
- the battery state model 32 chemical and/or electrical processes in the battery device 1000 can be simulated and output as battery state parameters BSP.
- the battery state model 32 can also take into account parameters other than the measurement parameters MP, such as an initial ion concentration or a diffusion rate of ions of the battery device 1000.
- the battery condition parameters BSP and the temperature parameters TP can be output as the battery parameters BP by the battery condition module 30 via a signal connector 34.
- Figure 4 shows the control system 10 with a configuration like that of Figure 2 and Figure 3. Commonalities between the embodiments will therefore not be discussed below.
- Figure 4 discloses a preferred embodiment of the measuring module 20.
- Figure 4 shows the control system 10 with the measuring module 20, which has several sensors for recording the measurement parameters MP on the battery device 1000.
- the battery device 1000 in particular has such sensors.
- Figure 4 shows by way of example that the cell voltage of each of the battery cells 1003 is determined by a voltage sensor 21.
- a local temperature profile of the operating temperature of the battery device 1000 can be recorded by means of several distributed temperature sensors 22.
- the battery current emitted by the battery device 1000 or taken in for charging can be recorded by the measuring module 20 by means of the current sensor 23.
- the battery device 1000, the sensors 21, 22, 23 and the first computing unit 11, which may include the measuring module 20 and the battery status module 30, may be provided as a structural unit and thus form, for example, a battery module 1100.
- Figure 4 discloses a preferred embodiment in which the prediction module 40, the control determination module 50 and the output module 60 are completely contained in the second computing unit 12. Accordingly, the prediction module 40, the control determination module 50 and the output module 60 are not shown separately in Figure 4.
- Figure 5 shows the battery charging system 90. This has the battery device 1000 with at least one of the aforementioned battery cells 1003 and the control system 10. Furthermore, Figure 5 shows an example of an electrical charging device 1200, which is connected to the electrodes of the battery device 1000 via electrical lines with charging connections of the battery charging system 90 in order to electrically charge the battery device 1000 with a charging current.
- the charging device 1200 can be part of the battery charging system 90.
- the charging current limit determined and output by the control system 10 as the at least one control parameter KP is specified to the battery device 1000 or the charging device 1200 as an upper limit of the charging current by the control system 10.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24758133.3A EP4710403A1 (de) | 2023-07-07 | 2024-07-05 | Verfahren und system zur ermittlung einer ladestromgrenze für einen ladeprozess einer wiederaufladbaren batterie |
| CN202480046004.5A CN121532925A (zh) | 2023-07-07 | 2024-07-05 | 用于确定可充电电池充电过程的充电电流限值的方法和系统 |
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| ATA50543/2023 | 2023-07-07 | ||
| AT505432023 | 2023-07-07 |
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| WO2025010459A1 true WO2025010459A1 (de) | 2025-01-16 |
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| EP (1) | EP4710403A1 (de) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120894183A (zh) * | 2025-10-09 | 2025-11-04 | 苏州工学院 | 一种基于电池组充放电智能管理系统及方法 |
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| US20170203667A1 (en) | 2016-01-20 | 2017-07-20 | Ford Global Technologies, Llc | Charging strategies to mitigate lithium plating in electrified vehicle battery |
| US20190229378A1 (en) * | 2016-10-03 | 2019-07-25 | Johnson Controls Technology Company | State of charge dependent plating estimation and prevention |
| US20200363475A1 (en) * | 2019-05-15 | 2020-11-19 | Sf Motors, Inc. | Continuous derating fast charging method based on multiple particle reduced order model |
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2024
- 2024-07-05 EP EP24758133.3A patent/EP4710403A1/de active Pending
- 2024-07-05 CN CN202480046004.5A patent/CN121532925A/zh active Pending
- 2024-07-05 WO PCT/AT2024/060265 patent/WO2025010459A1/de not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170203667A1 (en) | 2016-01-20 | 2017-07-20 | Ford Global Technologies, Llc | Charging strategies to mitigate lithium plating in electrified vehicle battery |
| US20190229378A1 (en) * | 2016-10-03 | 2019-07-25 | Johnson Controls Technology Company | State of charge dependent plating estimation and prevention |
| US20200363475A1 (en) * | 2019-05-15 | 2020-11-19 | Sf Motors, Inc. | Continuous derating fast charging method based on multiple particle reduced order model |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120894183A (zh) * | 2025-10-09 | 2025-11-04 | 苏州工学院 | 一种基于电池组充放电智能管理系统及方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN121532925A (zh) | 2026-02-13 |
| EP4710403A1 (de) | 2026-03-18 |
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