Charging control method and device, electronic equipment and readable storage medium

Abstract

The embodiment of the invention relates to the technical field of batteries, in particular to a charging control method and device, electronic equipment and a readable storage medium, under the condition that the first temperature of a battery is within a first preset temperature range, it is indicated that the current battery temperature is low, and the charging speed of the battery needs to be increased by increasing the battery temperature. By acquiring the first charge state of the battery and charging the battery with the charging rate corresponding to the first charge state, the temperature of the battery can be efficiently increased, and meanwhile, the charging speed of the battery can be increased.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of battery technology, and in particular, to a charging control method, device, electronic device, and readable storage medium. Background Art

[0002] With the development of new energy, more and more fields are using new energy as power. Batteries have been widely used due to their high energy density, rechargeable, safe and environmentally friendly. Among them, the process of charging and discharging the battery is also the process of electrochemical reaction on the interface of the electrode or electrolyte. However, the reaction efficiency of the electrochemical reaction is closely related to the battery temperature.

[0003] In a low temperature environment, in order to avoid battery performance degradation and affect the battery cycle life, a small current is often used to charge the battery or the battery is heated first to avoid damaging the battery. This results in the inability to effectively increase the battery temperature, which in turn leads to low battery charging efficiency. Summary of the invention

[0004] In view of the above problems, the present application provides a battery overcurrent detection method, a battery management system and a battery, which can efficiently increase the temperature of the battery itself, which is beneficial to increasing the charging speed of the battery.

[0005] In a first aspect, the present application provides a charging control method, the method comprising:

[0006] In response to the charging control information for the battery, acquiring a first temperature of the battery and a first parameter value of a state parameter of the battery;

[0007] When the first temperature is less than the first temperature threshold and the first parameter value is less than or equal to the first preset parameter threshold, the battery is charged according to a first charging rate corresponding to the first parameter value.

[0008] In the above-mentioned embodiment of the present application, when the first temperature of the battery is less than the first temperature threshold, it indicates that the current battery temperature is low and the battery charging speed needs to be increased by increasing the battery temperature. By obtaining the first parameter value of the battery state parameter and charging the battery at the first charging rate corresponding to the first parameter value, the battery temperature can be efficiently increased. At the same time, the increase in the battery temperature is conducive to increasing the battery charging speed.

[0009] In a possible implementation manner of the first aspect, after obtaining the first temperature of the battery and the first parameter value of the state parameter of the battery, the method further includes:

[0010] Get the battery type information;

[0011] The preset temperature threshold associated with the type information is determined as the first temperature threshold, and the parameter threshold associated with the type information is determined as the first preset parameter threshold.

[0012] In the above-mentioned embodiment of the present application, by obtaining the type information of the battery, and determining the first temperature threshold according to the preset temperature threshold associated with the type information of the battery, and determining the first preset parameter threshold according to the parameter threshold associated with the type information, in this way, in a low temperature environment, the accuracy of battery charging control can be improved to avoid damage to the battery, which is conducive to efficiently increasing the temperature of the battery itself, and at the same time is conducive to improving the charging speed of the battery.

[0013] In a possible implementation manner of the first aspect, the aforementioned state parameter includes a state of charge SOC; when the type information of the battery is a sodium ion battery, the first preset parameter threshold is 50%.

[0014] In the above-mentioned implementation mode of the present application, the state parameter includes the state of charge SOC. Based on this, it is only necessary to detect the SOC and quickly determine the charging rate of the battery according to the size of the SOC.

[0015] In a possible implementation of the first aspect, when the first temperature is less than the first temperature threshold and the first parameter value is less than or equal to the first preset parameter threshold, after charging the battery according to the first charging rate corresponding to the first parameter value, the method further includes:

[0016] Obtaining a second parameter value corresponding to a second temperature and a state parameter of the battery;

[0017] When the second temperature of the battery is greater than the second temperature threshold and the second parameter value is greater than the second preset parameter threshold, charging the battery according to a second charging rate corresponding to the second parameter value;

[0018] Among them, the second temperature threshold is greater than the first temperature threshold, the second preset parameter threshold is greater than the first preset parameter threshold, and the second charging rate is less than the first charging rate.

[0019] In the above-mentioned embodiment of the present application, after charging the battery based on the first charging rate, by continuing to obtain the second temperature and the second parameter value corresponding to the state parameter of the battery, it can be used to analyze whether it is necessary to adjust the charging rate of the battery. When the second temperature of the battery is greater than the second temperature threshold, it means that the temperature of the battery has risen and reached the normal charging temperature. At the same time, when the second parameter value is greater than the second preset parameter threshold, it means that the battery power has also effectively increased. Then, by charging the battery with the second charging rate corresponding to the second parameter value, the battery can enter the normal charging mode and realize fast charging of the battery.

[0020] In a possible implementation of the first aspect, when the first temperature is less than the first temperature threshold and the first parameter value is less than or equal to the first preset parameter threshold, after charging the battery according to the first charging rate corresponding to the first parameter value, the method further includes:

[0021] Obtaining a second parameter value corresponding to a second temperature and a state parameter of the battery;

[0022] When the second temperature of the battery is greater than the second temperature threshold and the second parameter value is greater than the second preset parameter threshold, charging the battery according to a second charging rate corresponding to the second parameter value;

[0023] Among them, the second temperature threshold is greater than the first temperature threshold, the second preset parameter threshold is greater than the first preset parameter threshold, and the second charging rate is less than the first charging rate.

[0024] In the above-mentioned embodiment of the present application, when the first temperature of the battery is less than the first temperature threshold and the state parameter is less than or equal to the first preset parameter threshold, before using the first charging rate to charge the battery, by determining that the battery meets the preset rapid hot start conditions, damage to components can be avoided or the reliability of the battery can be improved.

[0025] In a second aspect, the present application provides a charging control device, comprising:

[0026] an acquisition module, configured to acquire a first temperature of the battery and a first parameter value of a state parameter of the battery in response to charging control information of the battery;

[0027] The processing module is used to charge the battery according to a first charging rate corresponding to the first parameter value when the first temperature is less than a first temperature threshold and the first parameter value is less than or equal to a first preset parameter threshold.

[0028] In a possible implementation of the second aspect, the acquisition module is further used to acquire type information of the battery;

[0029] The processing module is further configured to determine the preset temperature threshold associated with the type information as the first temperature threshold, and to determine the parameter threshold associated with the type information as the first preset parameter threshold.

[0030] In a possible implementation manner of the second aspect, the state parameter includes a state of charge SOC; when the type information of the battery is a sodium ion battery, the first preset parameter threshold is 50%.

[0031] In the above embodiment of the present application, when the first temperature of the battery is less than the first temperature threshold, it means that the current battery temperature is low and the battery charging speed needs to be increased by increasing the battery temperature. By obtaining the first parameter value of the battery state parameter and charging the battery with the first charging rate corresponding to the first parameter value, the battery temperature can be efficiently increased. At the same time, the increase in the battery temperature is conducive to increasing the battery charging speed.

[0032] In a third aspect, an embodiment of the present application provides an electronic device, comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect and any possible implementation method of the first aspect are implemented.

[0033] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect and any possible implementation of the first aspect are implemented.

[0034] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0036] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0037] Figure 2 A flow chart of a charging control method is provided for an embodiment of the present application;

[0038] Figure 3 A schematic diagram of the relationship between time and rate provided in an embodiment of the present application;

[0039] Figure 4 A schematic diagram of a flow chart of a method for controlling charging of a sodium ion battery provided in an embodiment of the present application;

[0040] Figure 5 A schematic diagram of a curve of different SOC and DCR provided in an embodiment of the present application;

[0041] Figure 6 A schematic diagram of a hard carbon buckle charging curve provided in an embodiment of the present application;

[0042] Figure 7 A schematic diagram of the structure of a charging control device provided in an embodiment of the present application;

[0043] Figure 8 A schematic diagram of the structure of an electronic device provided for one embodiment of the present application. DETAILED DESCRIPTION

[0044] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0046] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0047] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0049] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0050] With the continuous development of science and technology, batteries are increasingly used in daily production and life. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of battery application areas, the market demand is also constantly expanding.

[0051] The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. Exemplarily, the scale of the battery in the embodiments of the present application can be a single cell, or a battery module or a battery pack, which is not limited here. In terms of application scenarios, the battery can be used in power devices such as automobiles and ships. For example, it can be used in electric vehicles to power the motor of electric vehicles as a power source for electric vehicles. The battery can also power other electrical devices in electric vehicles, such as in-car air conditioners, car players, etc.

[0052] Batteries have been widely used due to their high energy density, rechargeable, safe and environmentally friendly advantages. The inventors have noticed that the process of charging and discharging a battery is also a process of electrochemical reactions occurring at the interface of electrodes or electrolytes. However, the reaction efficiency of the electrochemical reaction is closely related to the battery temperature. Especially in low temperature environments, in order to avoid battery performance degradation and affect the battery cycle life, a small current is often used or the battery is charged by heating the battery first to avoid damaging the battery. This results in the inability to effectively increase the battery temperature, which in turn results in too low efficiency in charging the battery.

[0053] Based on the above considerations, in order to solve the problem that the battery cannot be charged efficiently when the battery temperature is low. After in-depth research, the inventor provides a charging control method, device, electronic device and readable storage medium. When the first temperature of the battery is within a first preset temperature range, by obtaining the first charge state of the battery and charging the battery at a charging rate corresponding to the first charge state, the temperature of the battery itself can be efficiently increased when the battery temperature is low, which is also beneficial to increasing the charging speed of the battery.

[0054] The technical solution described in the embodiment of the present application is applicable to batteries and electric devices using batteries. For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an electric device in the embodiment of the present application as an example.

[0055] Figure 1 A schematic diagram of a vehicle structure provided in some embodiments of the present application. Figure 1 As shown, the vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is arranged inside the vehicle 1000, and the battery 100 can be arranged at the bottom, head or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000, for example, the battery 100 can be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for the starting, navigation and driving power requirements of the vehicle 1000.

[0056] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0057] Based on the above concepts, the present application provides a charging control method, device, electronic device and readable storage medium. Figure 2 , Figure 2 2 is a flow chart of a charging control method provided in an embodiment of the present application. The charging control method may include the following steps 210 to 220.

[0058] Step 210, in response to the charging control information of the battery, obtaining a first temperature of the battery and a first parameter value of a state parameter of the battery;

[0059] Step 220, when the first temperature is less than the first temperature threshold and the first parameter value is less than or equal to the first preset parameter threshold, charge the battery according to a first charging rate corresponding to the first parameter value.

[0060] The above steps are described in detail below, as shown below.

[0061] In the above step 210 , the battery may include at least one battery cell. When the battery includes a plurality of battery cells, the plurality of battery cells may be connected in series and / or in parallel via electrode terminals for application in various applications.

[0062] In the embodiment of the present application, the execution subject of the charging control method may be a battery and an electric device using the battery. The electric device may be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, etc. The electric device may include a system for managing the battery, for example, a battery management system (BMS) in a vehicle. The embodiment of the present application does not impose any special restrictions on the above-mentioned electric devices.

[0063] The charging control information of the battery can be used to control the conduction of the path between the battery and the charging power supply so that the power supply can charge the battery. For example, when the vehicle needs to be charged, after detecting that the user connects the charger to the battery charging port, the BMS can generate the charging control information of the battery so that the power supply can charge the battery in the vehicle; for another example, after the user connects the battery to the charging power supply, the charging control information of the battery can be generated when receiving the user's charging instruction or when the user's preset charging time is reached, so that the power supply can charge the battery. The specific control information is not limited in the embodiments of the present application.

[0064] When receiving the charging control information for the battery, in response to the charging control information for the battery, a first temperature of the battery and a first parameter value of a state parameter of the battery are obtained. The first temperature refers to the current temperature of the battery itself, and the state parameter is, for example, a battery state of charge (State of Charge, SOC), a battery internal resistance (Directive Current Resistance, DCR) and other parameters.

[0065] In step 220, the first temperature threshold is used to determine whether the battery temperature is too low. When the first temperature of the battery is less than the first temperature threshold, it means that the current battery temperature is low and it is not suitable to charge the battery at a normal charging rate. For example, the first temperature threshold is minus 10 degrees Celsius.

[0066] Specifically, when the first temperature is less than the first temperature threshold and the first parameter value is less than or equal to the first preset parameter threshold, the battery is charged according to the first charging rate corresponding to the first parameter value. Exemplarily, the first charging rate may be a fast-heating charging mode. For example, a short-time high-rate pulse charging is used. Figure 3 This is a schematic diagram of the relationship between time and rate provided in the embodiment of the present application, combined with Figure 3 As shown, the specific rate is 2.2C, the specific time is 0.1S for charging, and 0.1S for discharging. In a low temperature environment, charging the battery at a high rate can effectively increase the heating rate of the battery.

[0067] According to the embodiment of the present application, when the first temperature of the battery is less than the first temperature threshold, it indicates that the current battery temperature is low and the battery charging speed needs to be increased by increasing the battery temperature. By obtaining the first parameter value of the battery state parameter and charging the battery at the first charging rate corresponding to the first parameter value, the battery temperature can be efficiently increased. At the same time, the increase in the battery temperature is conducive to increasing the battery charging speed.

[0068] In some embodiments of the present application, when the first temperature is less than the first temperature threshold and the first parameter value is less than or equal to the first preset parameter threshold, the battery is charged according to the first charging rate corresponding to the first parameter value, including: when the first temperature is less than the first temperature threshold and the first parameter value is less than or equal to the first preset parameter threshold, determining that the battery meets the preset rapid hot start condition; charging the battery according to the first charging rate corresponding to the first parameter value.

[0069] Specifically, before charging the battery based on the first charging rate corresponding to the first parameter value, the battery is in a fault-free state, etc. The preset quick hot start condition can be set according to the actual application scenario, so as to improve the safety of the battery itself and protect the battery.

[0070] In the above-mentioned embodiment of the present application, when the first temperature of the battery is less than the first temperature threshold and the state parameter is less than or equal to the first preset parameter threshold, before using the first charging rate to charge the battery, by determining that the battery meets the preset rapid hot start conditions, damage to components can be avoided or the reliability of the battery can be improved.

[0071] In some embodiments, after obtaining the first temperature of the battery and the first parameter value of the battery's state parameter, the method may further include the following steps: obtaining type information of the battery; determining a preset temperature threshold associated with the type information as a first temperature threshold, and determining a parameter threshold associated with the type information as a first preset parameter threshold.

[0072] Specifically, the types of batteries include lithium-ion batteries, sodium-ion batteries, lithium metal batteries, lead-acid batteries, nickel-cathode batteries, nickel-metal hydride batteries, lithium-sulfur batteries, lithium-air batteries, etc. Different types of batteries have different adaptability to low temperatures. Accordingly, corresponding to different types of batteries, associated preset temperature thresholds and different parameter thresholds are required.

[0073] In the above-mentioned embodiment of the present application, by obtaining the type information of the battery, and determining the first temperature threshold according to the preset temperature threshold associated with the type information of the battery, and determining the first preset parameter threshold according to the parameter threshold associated with the type information, in this way, in a low temperature environment, the accuracy of battery charging control can be improved to avoid damage to the battery, which is conducive to efficiently increasing the temperature of the battery itself, and at the same time is conducive to improving the charging speed of the battery.

[0074] As a specific example, the state parameter may include the state of charge SOC. When the type information of the battery is a sodium ion battery, the first preset parameter threshold is 50%.

[0075] Specifically, in the case of a sodium ion battery, when the battery temperature is low, when the SOC of the battery is less than or equal to 50%, the DCR resistance is large, and the anode charging capacity is strong, then it is quickly heated at this time, based on Q = I 2 *R, I can use large current, R is the DCR resistance value, and it has excellent rapid heating comprehensive effect.

[0076] In the above-mentioned implementation mode of the present application, the state parameter includes the state of charge SOC. Based on this, it is only necessary to detect the SOC and quickly determine the charging rate of the battery according to the size of the SOC.

[0077] In some embodiments of the present application, after charging the battery according to a first charging rate corresponding to a first parameter value, the method may further include the following steps: obtaining a second parameter value corresponding to a second temperature and a state parameter of the battery; when the second temperature of the battery is greater than a second temperature threshold and the second parameter value is greater than a second preset parameter threshold, charging the battery according to a second charging rate corresponding to the second parameter value.

[0078] Among them, the second temperature threshold is greater than the first temperature threshold, the second preset parameter threshold is greater than the first preset parameter threshold, and the second charging rate is less than the first charging rate.

[0079] Specifically, the second temperature threshold can be used to determine whether the temperature of the battery has returned to a normal temperature value. In the process of charging the battery based on the first charging rate, the temperature of the battery is collected, that is, the second temperature of the battery is collected. When the second temperature is greater than the second temperature threshold, it indicates that the temperature of the battery has returned to normal, for example, the temperature of the battery itself has reached more than 10 degrees Celsius.

[0080] The second parameter value corresponding to the state parameter may be the state of charge SOC of the battery. Exemplarily, the second preset parameter threshold may be 60%, and when the second parameter value of the battery is greater than 60%, the second charging rate may be used to charge the battery.

[0081] Continuing with the example of a sodium-ion battery as the battery type information, when the battery SOC is greater than the second preset parameter threshold, the battery DCR has decreased and stabilized, and since the battery temperature has increased, the battery can be charged in a normal charging mode, that is, the battery is charged at a second charging rate corresponding to the second parameter value.

[0082] In order to better understand the battery charging method provided in the embodiment of the present application, an embodiment of the above-mentioned battery charging method in practical application is provided here for illustration. Figure 4 1 is a flow chart of a method for controlling the charging of a sodium ion battery provided in an embodiment of the present application. Figure 4 As shown, the charging control method may refer to the following steps 401 to 406.

[0083] Step 401: In response to charging control information for a battery, a first temperature of a sodium ion battery and a first parameter value of a state parameter of the sodium ion battery are acquired.

[0084] Exemplarily, the first parameter value of the state parameter may be a first SOC of the battery.

[0085] Step 402 , determining whether the first temperature is less than a first temperature threshold, and whether the first parameter value is less than a first preset parameter threshold; if so, executing step 403 .

[0086] For example, Figure 5 1 is a schematic diagram of SOC and DCR curves at different temperatures provided in an embodiment of the present application. Figure 5 As shown, Figure 5 Including the two curves of -20 degrees Celsius and -10 degrees Celsius, it can be seen that in a low temperature environment, the battery DCR tends to decrease with the increase of the state of charge. Figure 6 A schematic diagram of a hard carbon buckle charging curve provided in an embodiment of the present application, combined with Figure 6 As shown in the figure, the main source of DCR in sodium-ion batteries comes from the positive electrode. At the beginning of charging, the binding force between the lattices of the positive electrode material is strong, showing that the maximum DCR value exists when the SOC is less than or equal to 50%.

[0087] Step 403: charge the battery according to a first charging rate corresponding to the first parameter value.

[0088] Specifically, continue to refer to Figure 6As shown, when the amount of sodium embedded in the anode of the sodium ion battery is in the slope region (i.e., the first half of the charge curve), the sodium ion battery has the ability to carry high-rate charging. At this time, the first charging rate can be used to charge the battery, for example, a rate such as 2.2C, a specific time such as a charging time of 0.1S, a discharge time of 0.1S, and a large current is used to charge the battery. Among them, the large current can be the maximum current that the battery can carry, or it can be other large currents, and the value of the current is not specifically limited here.

[0089] Step 404, obtaining a second parameter value corresponding to a second temperature and a state parameter of the sodium ion battery;

[0090] Step 405 , determining whether the second temperature is less than a second temperature threshold, and whether the second parameter value is less than a second preset parameter threshold; if so, executing step 406 .

[0091] Exemplarily, the second temperature threshold is, for example, 10 degrees Celsius, and the second preset parameter threshold is, for example, 60%.

[0092] Step 406: Charge the sodium ion battery according to a second charging rate corresponding to the second parameter value.

[0093] In the above-mentioned embodiment of the present application, when the first temperature of the battery is less than the first temperature threshold, it means that the current battery temperature is low, and it is necessary to increase the battery temperature to increase the charging speed of the battery. By obtaining the first parameter value of the state parameter of the battery and charging the battery with the first charging rate corresponding to the first parameter value, the temperature of the battery itself can be efficiently increased. At the same time, due to the increase in the temperature of the battery itself, it is beneficial to increase the charging speed of the battery. Based on the charging method provided in the embodiment of the present application, at a battery temperature of -10 degrees Celsius, if other conventional solutions are adopted, it will take at least 80 minutes, and based on the charging control method provided in the embodiment of the present application, the charging time can be shortened to 60 minutes.

[0094] Based on the same inventive concept, the present application also provides a charging control device corresponding to the above-mentioned charging control method. Figure 7 A schematic diagram of a charging control device provided in an embodiment of the present application, combined with Figure 7 As shown, the charging control device includes an acquisition module 710 and a processing module 720 .

[0095] An acquisition module 710, configured to acquire a first temperature of the battery and a first parameter value of a state parameter of the battery in response to charging control information of the battery;

[0096] The processing module 720 is used to charge the battery according to a first charging rate corresponding to the first parameter value when the first temperature is lower than a first temperature threshold and the first parameter value is lower than or equal to a first preset parameter threshold.

[0097] In the above embodiment of the present application, when the first temperature of the battery is less than the first temperature threshold, it means that the current battery temperature is low and the battery charging speed needs to be increased by increasing the battery temperature. By obtaining the first parameter value of the battery state parameter and charging the battery with the first charging rate corresponding to the first parameter value, the battery temperature can be efficiently increased. At the same time, the increase in the battery temperature is conducive to increasing the battery charging speed.

[0098] In some embodiments, the acquisition module 710 is further used to acquire the type information of the battery;

[0099] The processing module 720 is further configured to determine a preset temperature threshold associated with the type information as the first temperature threshold, and to determine a parameter threshold associated with the type information as the first preset parameter threshold.

[0100] In the above-mentioned embodiment of the present application, by obtaining the type information of the battery, and determining the first temperature threshold according to the preset temperature threshold associated with the type information of the battery, and determining the first preset parameter threshold according to the parameter threshold associated with the type information, in this way, in a low temperature environment, the accuracy of battery charging control can be improved to avoid damage to the battery, which is conducive to efficiently increasing the temperature of the battery itself, and at the same time is conducive to improving the charging speed of the battery.

[0101] In some embodiments, the state parameter includes a state of charge (SOC); when the type information of the battery is a sodium ion battery, the first preset parameter threshold is 50%.

[0102] In the above-mentioned implementation mode of the present application, the state parameter includes the state of charge SOC. Based on this, it is only necessary to detect the SOC and quickly determine the charging rate of the battery according to the size of the SOC.

[0103] In some embodiments, the acquisition module 710 is further used to acquire a second temperature of the battery and a second parameter value corresponding to the state parameter;

[0104] The processing module 720 is further configured to charge the battery according to a second charging rate corresponding to the second parameter value when the second temperature of the battery is greater than a second temperature threshold and the second parameter value is greater than a second preset parameter threshold;

[0105] Among them, the second temperature threshold is greater than the first temperature threshold, the second preset parameter threshold is greater than the first preset parameter threshold, and the second charging rate is less than the first charging rate.

[0106] In the above-mentioned embodiment of the present application, after charging the battery based on the first charging rate, by continuing to obtain the second temperature and the second parameter value corresponding to the state parameter of the battery, it can be used to analyze whether it is necessary to adjust the charging rate of the battery. When the second temperature of the battery is greater than the second temperature threshold, it means that the temperature of the battery has risen and reached the normal charging temperature. At the same time, when the second parameter value is greater than the second preset parameter threshold, it means that the battery power has also effectively increased. Then, by charging the battery with the second charging rate corresponding to the second parameter value, the battery can enter the normal charging mode and realize fast charging of the battery.

[0107] In some embodiments, the processing module 720 is further configured to determine that the battery meets a preset rapid hot start condition when the first temperature is less than a first temperature threshold and the first parameter value is less than or equal to a first preset parameter threshold;

[0108] The battery is charged according to a first charging rate corresponding to the first parameter value.

[0109] In the above-mentioned embodiment of the present application, when the first temperature of the battery is less than the first temperature threshold and the state parameter is less than or equal to the first preset parameter threshold, before using the first charging rate to charge the battery, by determining that the battery meets the preset rapid hot start conditions, damage to components can be avoided or the reliability of the battery can be improved.

[0110] Figure 8 FIG. 1 is a schematic diagram showing the structure of an electronic device provided by an embodiment of the present application. Figure 8 As shown, the device may include a processor 801 and a memory 802 storing computer program instructions.

[0111] Specifically, the processor 801 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0112] The memory 802 may include a large capacity memory for information or instructions. By way of example and not limitation, the memory 802 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. In one example, the memory 802 may include a removable or non-removable (or fixed) medium, or the memory 802 is a non-volatile solid-state memory. The memory 802 may be inside or outside the electronic device.

[0113] The memory may include read-only memory (ROM), random access memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical or other physical / tangible memory storage devices. Thus, typically, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to an aspect of the present disclosure.

[0114] The processor 801 implements the method described in the embodiment of the present application by reading and executing the computer program instructions stored in the memory 802, and achieves the corresponding technical effect achieved by the embodiment of the present application executing its method, which will not be repeated here for the sake of brevity.

[0115] In one example, the electronic device may further include a communication interface 803 and a bus 810. Figure 8 As shown, the processor 801, the memory 802, and the communication interface 803 are connected via a bus 810 and communicate with each other.

[0116] The communication interface 803 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0117] Bus 810 includes hardware, software or both, and the components of online information flow billing equipment are coupled to each other. For example, but not limitation, the bus may include Accelerated Graphics Port (AGP) or other graphics bus, Enhanced Industry Standard Architecture (EISA) bus, Front Side Bus (FSB), Hyper Transport (HT) interconnection, Industry Standard Architecture (ISA) bus, InfiniBand interconnection, Low Pin Count (LPC) bus, Memory bus, Micro Channel Architecture (MCA) bus, Peripheral Component Interconnect (PCI) bus, PCI-Express (PCI-X) bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association Local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 810 may include one or more buses. Although the present application embodiment describes and shows a specific bus, the present application considers any suitable bus or interconnection.

[0118] The electronic device can execute the charging control method in the embodiment of the present application, thereby achieving the corresponding technical effects of the charging control method described in the embodiment of the present application.

[0119] In addition, in combination with the charging control method in the above embodiment, the embodiment of the present application may provide a readable storage medium to implement. The readable storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any one of the charging control methods in the above embodiment is implemented. Examples of readable storage media may be non-transitory machine-readable media, such as electronic circuits, semiconductor memory devices, read-only memories (ROM), floppy disks, compact discs (CD-ROM), optical discs, hard disks, etc.

[0120] It should be clear that the present application is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present application.

[0121] The functional blocks shown in the structural block diagram described above can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), appropriate firmware, plug-in, function card, etc. When implemented in software, the elements of the present application are programs or code segments used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or communication link by a data signal carried in a carrier. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, read-only memory (Read-Only Memory, ROM), flash memory, erasable read-only memory (Erasable ReadOnly Memory, EROM), floppy disks, compact disc read-only memory (Compact Disc Read-Only Memory, CD-ROM), optical discs, hard disks, optical fiber media, radio frequency (Radio Frequency, RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0122] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

[0123] The embodiment of the present application also provides a computer-readable storage medium, on which computer program instructions are stored; when the computer program instructions are executed by a processor, the charging control method provided in the embodiment of the present application is implemented.

[0124] In addition, in combination with the charging control method, device, and readable storage medium in the above embodiments, the embodiments of the present application may provide a computer program product for implementation. When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes any one of the charging control methods in the above embodiments.

[0125] Aspects of the present disclosure are described above with reference to the flowchart and / or block diagram of the method, device (system) and computer program product according to the embodiment of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the implementation of the function / action specified in one or more boxes of the flowchart and / or block diagram. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field programmable logic circuit. It can also be understood that each box in the block diagram and / or flowchart and the combination of boxes in the block diagram and / or flowchart can also be implemented by dedicated hardware that performs a specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0126] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A charging control method, characterized in that: The method comprises: In response to charging control information for a battery, acquiring a first temperature of the battery and a first parameter value of a state parameter of the battery; When the first temperature is lower than a first temperature threshold and the first parameter value is lower than or equal to a first preset parameter threshold, the battery is charged according to a first charging rate corresponding to the first parameter value.

2. The method according to claim 1, characterized in that: After acquiring the first temperature of the battery and the first parameter value of the state parameter of the battery, the method further includes: Obtaining type information of the battery; The preset temperature threshold associated with the type information is determined as the first temperature threshold, and the parameter threshold associated with the type information is determined as the first preset parameter threshold.

3. The method according to claim 2, characterized in that The state parameter includes the state of charge SOC; when the type information of the battery is a sodium ion battery, the first preset parameter threshold is 50%.

4. The method according to claim 1, characterized in that: When the first temperature is less than a first temperature threshold and the first parameter value is less than or equal to a first preset parameter threshold, after charging the battery according to a first charging rate corresponding to the first parameter value, the method further includes: Acquire a second temperature of the battery and a second parameter value corresponding to the state parameter; When the second temperature of the battery is greater than a second temperature threshold and the second parameter value is greater than a second preset parameter threshold, charging the battery according to a second charging rate corresponding to the second parameter value; Among them, the second temperature threshold is greater than the first temperature threshold, the second preset parameter threshold is greater than the first preset parameter threshold, and the second charging rate is less than the first charging rate.

5. The method according to claim 1, characterized in that: When the first temperature is less than a first temperature threshold and the first parameter value is less than or equal to a first preset parameter threshold, charging the battery according to a first charging rate corresponding to the first parameter value includes: When the first temperature is less than a first temperature threshold and the first parameter value is less than or equal to a first preset parameter threshold, determining that the battery meets a preset rapid hot start condition; The battery is charged according to a first charging rate corresponding to the first parameter value.

6. A charging control device, characterized in that: The device comprises: an acquisition module, configured to acquire a first temperature of the battery and a first parameter value of a state parameter of the battery in response to charging control information of the battery; A processing module is used to charge the battery according to a first charging rate corresponding to the first parameter value when the first temperature is less than a first temperature threshold and the first parameter value is less than or equal to a first preset parameter threshold.

7. The device according to claim 6, characterized in that The acquisition module is further used to acquire the type information of the battery; The processing module is further configured to determine a preset temperature threshold associated with the type information as the first temperature threshold, and to determine a parameter threshold associated with the type information as the first preset parameter threshold.

8. The device according to claim 6 or 7, characterized in that The state parameter includes the state of charge SOC; when the type information of the battery is a sodium ion battery, the first preset parameter threshold is 50%.

9. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the charging control method according to any one of claims 1 to 5 are implemented.

10. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the charging control method according to any one of claims 1 to 5 are implemented.

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