WO2017147791A1 - 充电方法、适配器、移动终端和充电系统 - Google Patents

充电方法、适配器、移动终端和充电系统 Download PDF

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Publication number
WO2017147791A1
WO2017147791A1 PCT/CN2016/075228 CN2016075228W WO2017147791A1 WO 2017147791 A1 WO2017147791 A1 WO 2017147791A1 CN 2016075228 W CN2016075228 W CN 2016075228W WO 2017147791 A1 WO2017147791 A1 WO 2017147791A1
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WO
WIPO (PCT)
Prior art keywords
charging
current
battery
parameter
adapter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/075228
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English (en)
French (fr)
Inventor
曾元清
胡智画
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to ES16818966T priority Critical patent/ES2772999T3/es
Priority to PCT/CN2016/075228 priority patent/WO2017147791A1/zh
Priority to EP16818966.0A priority patent/EP3242373B1/en
Priority to CN201680000922.XA priority patent/CN106663957B/zh
Priority to TW105120036A priority patent/TWI621320B/zh
Priority to US15/427,716 priority patent/US10084333B2/en
Publication of WO2017147791A1 publication Critical patent/WO2017147791A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H02J7/40—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data
    • H02J7/44—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data between battery management systems and power sources
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/44—Testing lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • 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
    • H02J7/02—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • 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
    • H02J7/485—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries with provisions for charging different types of batteries
    • 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
    • H02J7/82—Control of state of charge [SOC]
    • 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
    • H02J7/90—Regulation of charging or discharging current or voltage
    • 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
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/927—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process
    • 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
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/971—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/975—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/977—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • 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
    • 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
    • H02J7/40—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data
    • H02J7/42—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data with electronic devices having internal batteries, e.g. mobile phones
    • 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

  • Embodiments of the present invention relate to the field of charging, and more particularly, to a charging method, an adapter, a mobile terminal, and a charging system.
  • mobile terminals such as smart phones
  • mobile terminals consume a large amount of power and usually need to be charged frequently.
  • the charging mode that the adapter can select includes a constant current mode, a constant voltage mode, or a pulse mode. Once the adapter's charging mode is determined, the adapter charges the mobile terminal in a fixed mode. This charging mode is not flexible enough and the charging effect is poor.
  • the application provides a charging method, an adapter, a mobile terminal and a charging system to improve the flexibility of the charging process of the mobile terminal.
  • a charging method for controlling an adapter to charge a battery in a mobile terminal, the method comprising: passing a charging interface between the adapter and the mobile terminal (the charging interface can be, for example, a universal serial bus (a universal serial bus (USB) interface, which may be a normal USB interface or a micro USB interface), the adapter communicates with the mobile terminal to acquire the battery through the mobile terminal a state parameter, wherein the adapter charges the battery through a power cord in the charging interface, the adapter communicating with the mobile terminal through a data line in the charging interface, the state parameters of the battery including A parameter for indicating a current temperature of the battery, and a parameter for indicating a current state of charge (SOC) of the battery.
  • the charging interface can be, for example, a universal serial bus (a universal serial bus (USB) interface, which may be a normal USB interface or a micro USB interface)
  • USB universal serial bus
  • the adapter communicates with the mobile terminal to acquire the battery through the mobile terminal a state parameter, wherein the adapt
  • the parameter used to indicate the current SOC of the battery may be the current SOC of the battery, or the voltage of the battery (the SOC and voltage of the battery are positively correlated).
  • the adapter selects a target parameter mapping relationship corresponding to the current temperature from a plurality of pre-established parameter mapping relationships according to a current temperature of the battery, where the plurality of parameter mapping relationships respectively correspond to multiple temperatures, wherein each parameter The mapping relationship is used to indicate a mapping relationship between a state of charge of the battery and a charging parameter at a temperature corresponding to each parameter mapping relationship.
  • a plurality of parameter mapping relationships may include: at a high temperature (eg, 50 degrees Celsius), the charging parameter of the battery is in accordance with the power The conversion relationship of the SOC of the pool; at normal temperature (such as 20 degrees Celsius), the charging parameter of the battery changes with the SOC of the battery; at low temperature (-5 degrees Celsius), the charging parameter of the battery changes with the SOC of the battery.
  • the charging parameter includes at least one of an output voltage of the adapter, an output current, and a charging mode, the charging mode including at least one of constant voltage charging, constant current charging, and pulse charging; Determining, by the target parameter mapping relationship, the current charging parameter of the current state of charge of the battery; the adapter charging the battery in the mobile terminal according to the current charging parameter.
  • the adapter maintains communication with the mobile terminal and interacts with the battery's status parameters to adjust the charging parameters of the charging process (eg, adjusting the adapter's output voltage, output current, charging mode, etc.) to increase the flexibility of the charging process.
  • the charging parameters of the charging process eg, adjusting the adapter's output voltage, output current, charging mode, etc.
  • the charging process of the battery at the current temperature includes a plurality of charging phases (or the charging process is divided into a plurality of charging phases), The state of charge of the battery in different charging phases of the plurality of charging phases is different, and the target parameter mapping relationship includes a one-to-one correspondence between the plurality of charging phases and a plurality of charging parameters, Determining, by the target parameter mapping relationship, the current charging parameter, wherein the adapter selects a current charging phase corresponding to the current state of charge from the plurality of charging phases; The adapter determines a charging parameter corresponding to the current charging phase among the plurality of charging parameters as the current charging parameter.
  • the charging process is divided into multiple charging phases, and each charging phase is configured with its appropriate charging parameters, which further increases the flexibility of the charging process.
  • the plurality of charging phases includes a first charging phase and a second charging phase, and the first charging phase and the The charging mode of the second charging phase is different. It should be understood that the first charging phase and the second charging phase are any two of the plurality of charging phases.
  • Configuring different charging modes for different charging stages without being limited to one charging mode, further increases the flexibility of the charging process.
  • the method before the acquiring, by the mobile terminal, the state parameter of the battery, the method further includes: The adapter is in communication with the mobile terminal to determine a charging mode, wherein the charging mode includes a fast charging mode and a normal charging mode, the charging speed of the fast charging mode being greater than the charging speed of the normal charging mode; Use the fast charging mode to charge the battery
  • the acquiring, by the mobile terminal, the status parameter of the battery includes: the adapter communicating with the mobile terminal to determine a charging voltage and a charging current of the fast charging mode;
  • the charging of the battery in the mobile terminal according to the current charging parameter specifically includes: the adapter adjusting the output voltage and the output current to the current charging parameter according to the current charging parameter.
  • the charging voltage and the charging current corresponding to the fast charging mode are described to quickly charge the mobile terminal.
  • the handshake communication between the adapter and the mobile terminal ensures the security of the entire charging process.
  • a charging method comprising: after a mobile terminal is connected to an adapter through a charging interface, the mobile terminal acquires a state parameter of a battery, wherein the adapter passes a power line in the charging interface Charging the battery, the mobile terminal communicating with the adapter through a data line in the charging interface, the state parameter of the battery including a parameter indicating a current temperature of the battery, and a parameter of the current state of charge of the battery; the mobile terminal selects a target parameter mapping relationship corresponding to the current temperature from a plurality of parameter mapping relationships established in advance according to the current temperature of the battery, and the plurality of parameter mappings The relationship respectively corresponds to a plurality of temperatures, wherein each parameter mapping relationship is used to indicate a mapping relationship between a state of charge of the battery and a charging parameter at a temperature corresponding to each parameter mapping relationship, and the charging parameter includes the At least one of an output voltage, an output current, and a charging mode of the adapter, the charging mode including constant At least one
  • the adapter maintains communication with the mobile terminal, and adjusts the charging parameters of the charging process by interactively changing the state parameters of the battery, thereby improving the flexibility of the charging process.
  • the charging process of the battery at the current temperature includes a plurality of charging phases, and the battery is in a different charging phase of the plurality of charging phases
  • the target parameter mapping relationship includes a one-to-one correspondence between the plurality of charging phases and a plurality of charging parameters, and the mobile terminal maps the target parameters according to a current state of charge of the battery. And determining, by the mobile terminal, the current charging phase corresponding to the current state of charge from the plurality of charging phases; the mobile terminal comparing the plurality of charging parameters Charging parameters corresponding to the current charging phase Determined as the current charging parameter.
  • the charging process is divided into multiple charging phases, and each charging phase is configured with its appropriate charging parameters, which further increases the flexibility of the charging process.
  • the multiple charging phases include a first charging phase and a second charging phase, and the first charging phase and the The charging mode of the second charging phase is different.
  • the method before the acquiring, by the mobile terminal, the state parameter of the battery, the method further includes: the mobile terminal and the The adapter communicates to determine a charging mode, wherein the charging mode includes a fast charging mode and a normal charging mode, the charging speed of the fast charging mode is greater than the charging speed of the normal charging mode; and determining the use of the fast charging mode
  • the mobile terminal communicates with the adapter to determine a charging voltage and a charging current of the fast charging mode
  • the mobile terminal communicates with the adapter to send the current charging parameter to the adapter, specifically including The mobile terminal communicates with the adapter to send the current charging parameter to the adapter, so that after the adapter receives the current charging parameter sent by the mobile terminal, the output voltage and the output current are adjusted to the fast charging mode.
  • Corresponding charging voltage and charging current fast to the mobile terminal Electricity.
  • the handshake communication between the adapter and the mobile terminal ensures the security of the entire charging process.
  • an adapter comprising circuitry for performing the method of the first aspect.
  • a mobile terminal comprising circuitry for performing the method of the second aspect.
  • a charging system comprising the adapter described in the third aspect, and the mobile terminal described in the fourth aspect.
  • the plurality of parameter mapping relationships are determined based on a relationship of a maximum charge rate of the battery at the plurality of temperatures as a function of a state of charge of the battery.
  • the selection of multiple parameter mapping relationships can make the charging rate of the battery in the whole charging process close to the maximum charging magnification.
  • the parameter for indicating a current state of charge of the battery is a current state of charge of the battery or a current voltage of the battery.
  • the charging mode of at least one of the plurality of stages is pulsed charging.
  • the pulse charging includes at least one of positive pulse charging, negative pulse charging, and positive and negative pulse charging.
  • the charging current of the pulse charging is a constant current or a variable current.
  • the adapter can communicate with the mobile terminal, adjust the charging parameter according to the state parameter of the battery, and improve the flexibility of the charging process of the mobile terminal.
  • FIG. 1 is a schematic flow chart of a charging method according to an embodiment of the present invention.
  • Fig. 2 is a schematic diagram of a maximum charging magnification curve at normal temperature.
  • Figure 3 is a schematic illustration of the maximum charge rate curve at multiple temperatures.
  • FIG. 4 is a schematic diagram of a maximum charge rate curve including a plurality of charge phases.
  • Fig. 5 is a comparison diagram of the actual charging magnification curve and the maximum charging magnification curve in the constant current mode.
  • Fig. 6 is a comparison diagram of the actual charging magnification curve and the maximum charging magnification curve in the constant current + constant voltage mode.
  • Fig. 7 is a diagram showing an example of a specific form of a pulse charging current.
  • Figure 8 is an exemplary diagram of a specific form of pulse charging current.
  • Figure 9 is an exemplary diagram of a specific form of pulse charging current.
  • Figure 10 is an exemplary diagram of a specific form of pulse charging current.
  • Figure 11 is a schematic structural view of an adapter according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • Figure 13 is a schematic configuration diagram of a communication system according to an embodiment of the present invention.
  • the embodiment of the present invention pre-establishes a plurality of parameter mapping relationships.
  • the plurality of parameter mapping relationships respectively correspond to a plurality of temperatures, and each parameter maps off
  • the system is configured to indicate a mapping relationship between a state of charge of the battery and a charging parameter at a temperature corresponding to each parameter mapping relationship.
  • the target parameter mapping relationship corresponding to the current temperature may be selected from a plurality of parameter mapping relationships based on the current temperature of the battery; then, according to the state of charge of the battery, the current charging parameter is determined by the target parameter mapping relationship.
  • the information of the plurality of parameter mapping relationships may be stored in the adapter or may be stored in the mobile terminal, depending on whether the determining body of the charging parameter is an adapter or a mobile terminal.
  • the mobile terminal may be responsible for collecting the state parameter of the battery, and transmitting the state parameter of the battery to the adapter through the data line in the USB interface;
  • the adapter serves as a body for determining the charging parameter, according to the state parameter of the battery and stored in the adapter.
  • the information of multiple parameter mapping relationships determines the current charging parameters.
  • the mobile terminal as the main body for determining the charging parameter, is not only responsible for collecting the state parameters of the battery, but also for determining the current charging parameter according to the state parameter of the battery and the information of the plurality of parameter mapping relationships stored in the mobile terminal, and then determining the current charging parameter. Send to the adapter.
  • the plurality of parameter mapping relationships in embodiments of the present invention may be determined based on a relationship of a maximum charging rate of the battery at a plurality of temperatures as a function of a state of charge of the battery.
  • the relationship of the maximum charging magnification with the state of charge of the battery can be expressed by the maximum charging magnification curve.
  • the maximum charging magnification curve of the battery at 15 degrees Celsius may be determined first (the method for determining the maximum charging magnification curve will be described in detail later), and then selected based on the maximum charging magnification curve.
  • the charging parameter corresponding to each state of charge, the charging parameter selection principle may be: when the adapter is charged according to the charging parameter of 15 degrees Celsius, the charging rate of the whole charging process is as close as possible to the maximum charging magnification curve corresponding to 15 degrees Celsius.
  • FIG. 1 is a schematic flow chart of a charging method according to an embodiment of the present invention.
  • the method of Figure 1 includes:
  • the cathode potential continues to rise and the anode potential continues to decrease.
  • the anode potential is lower than 0 V
  • Li + lithium ion
  • Lithium analysis not only affects the electrochemical performance of the battery, but also reduces the safety of the battery. Therefore, in the use of the battery, it is necessary to avoid the situation of lithium deposition of the battery. Generally, if the temperature is lower and the charging magnification is larger, the lithium ion battery is more likely to be decomposed.
  • the user/user/battery manufacturer/terminal manufacturer can obtain the maximum charging rate curve of the battery at different temperatures by the three-electrode method.
  • the approximate measurement process of the three-electrode method includes: first, implanting a lithium metal electrode between the anode and the cathode of the battery as a The reference electrode; secondly, the temperature and charging rate of the fixed battery, in the battery charging and discharging process, the potential of the cathode and the anode are monitored in real time; when the potential of the anode is 0V, the anode begins to exhibit lithium deposition, and the SOC of the battery is recorded at this time. (hereinafter referred to as lithium SOC).
  • the lithium SOC of the battery at different temperatures and different charging rates that is, the maximum charging rate curve of the battery at different temperatures can be obtained.
  • Table 1 shows the correspondence between the charging magnification of a certain battery and the lithium-extracting SOC under normal temperature conditions (the range of the normal temperature of the battery is generally between 10 and 35 ° C, for example, 20 ° C).
  • the maximum charge rate curve of the battery at normal temperature can be plotted, as shown in Figure 2. At the same temperature, the more magnification points are measured, the more accurate the maximum charge rate curve obtained.
  • the maximum charge rate curve of the battery at various temperatures can be measured in the same manner.
  • the maximum charge rate curve of the battery at high temperature such as 50 degrees Celsius
  • normal temperature such as 20 degrees Celsius
  • low temperature such as -5 degrees Celsius
  • the charging parameter mapping relationship (ie, the mapping relationship between the SOC and the charging parameter) at a plurality of temperatures can be determined based on the obtained maximum charging magnification curve.
  • Different SOCs can correspond to different charging parameters.
  • the charging parameter is selected such that the charging magnification curve of the entire charging process is as close as possible to the maximum charging magnification curve, so that the charging safety and the charging speed can be ensured.
  • the maximum charge rate curve can be divided into multiple charging phases, and the same charging phase is used for the same charging phase, as shown in steps 120 and 130.
  • S120 Refine the maximum charging magnification curve at a specific temperature into N (N>1) charging stages, as shown in FIG. 4 .
  • a charging mode, a charging current, and a charging voltage are determined for each charging phase.
  • the charging parameters of each charging phase may include a charging current; when the entire charging process uses constant current charging, the charging parameters of each charging phase may include a charging voltage; when the entire charging process can be used In a plurality of charging modes, the charging parameters of each charging phase may include a charging mode.
  • the charging parameter of each charging phase may be selected according to the principle that when the charging parameter is used to charge the battery, the charging rate of the battery is as close as possible to the currently allowed maximum charging magnification. An example of how the charging parameters of each charging phase are selected is given below.
  • the N charging phases can be charged in a constant current mode, and the currents in different charging phases are different. It can be seen from FIG. 5 that the charging current of each charging phase is selected such that the actual charging magnification curve is as close as possible to the maximum charging magnification curve, but does not exceed the maximum charging magnification curve. Similarly, in Figure 6, the charging mode of "constant current + constant voltage" is used in each charging phase, and the charging parameters are selected in the same manner as in Fig. 5.
  • one or more of the N charging phases may also employ a pulse charging mode.
  • pulse charging can effectively shorten the charging time.
  • the pulse charging mode may include constant current pulses, variable current pulses, positive and negative pulses, etc., and the same pulse charging mode may be used for each charging phase, or different pulse charging modes may be used.
  • one or more of the above various charging modes may be adopted in the N charging stages, which is not specifically limited in the embodiment of the present invention. The specific form of the pulse current that can be used in the pulse charging mode will be described in detail below with reference to FIGS. 7-10.
  • the pulse currents in Figures 7 and 8 are both in the form of pulse signal + stop-charge appropriate time.
  • the difference between Figure 7 and Figure 8 is that the pulse signal in Figure 7 is a constant current pulse signal, and the pulse signal in Figure 8 is Variable current pulse signal.
  • the charging at the appropriate time can make the inside of the battery be in a relaxation process, and the relaxation process can delay the occurrence of the lithium phenomenon.
  • the pulse current in Figure 9 takes the form of a positive pulse signal + a transient negative pulse signal. Charging the battery with a negative pulse is equivalent to the active discharge process of the battery, which can accelerate the relaxation process inside the battery. Compared with the stop-and-charge method in Figures 7 and 8, the negative pulse can shorten the relaxation time and greatly ease the lithium deposition. phenomenon.
  • FIG. 9 illustrates a positive pulse signal as a constant current pulse signal, and the positive pulse signal may also be a variable current pulse signal.
  • Figure 10 is a combination of the above pulse current forms and will not be described in detail herein.
  • the S140, the adapter and the mobile terminal communicate in two directions, interact with the state parameter of the battery in real time, and determine the corresponding charging parameter according to the state parameter of the battery and the mapping relationship of the plurality of parameters.
  • steps S110 to S130 may be determined offline. In actual interaction, the charging parameter mapping relationship determined by steps S110 to S130 may be directly used.
  • the charging rate is maximized, the charging efficiency is improved, and the charging time is shortened.
  • FIGS. 1 through 10 The charging method according to an embodiment of the present invention has been described in detail above with reference to FIGS. 1 through 10.
  • An adapter and a mobile terminal according to an embodiment of the present invention are described in detail below with reference to FIGS. 11 through 12. It should be understood that the terms and features referred to on the device side are similar to those of the method side, and the repeated description is omitted as appropriate for the sake of brevity.
  • FIG. 11 is a schematic structural view of an adapter according to an embodiment of the present invention.
  • the adapter 1100 of FIG. 11 includes a communication control circuit 1110 and a charging circuit 1120 for communicating with the mobile terminal after the adapter 1100 is connected to the mobile terminal via a charging interface to pass the movement.
  • the terminal acquires a state parameter of the battery, wherein the adapter 1100 charges the battery through a power line in the charging interface, and the adapter 1100 communicates with the mobile terminal through a data line in the charging interface,
  • the state parameter of the battery includes a parameter for indicating a current temperature of the battery, and a parameter for indicating a current state of charge of the battery; and mapping from a plurality of parameters established in advance according to a current temperature of the battery Selecting a target parameter mapping relationship corresponding to the current temperature, where the plurality of parameter mapping relationships respectively correspond to a plurality of temperatures, wherein each parameter mapping relationship is used to indicate that the temperature corresponding to each parameter mapping relationship is a mapping relationship between a state of charge of the battery and a charging parameter, the charging parameter including the input of the adapter 1100 At least one of a voltage, an output current, and a charging mode, the charging mode including at least one of constant voltage charging, constant current charging, and pulse charging; passing the target parameter according to a current state of charge of the battery Ma
  • the charging process of the battery at the current temperature includes a plurality of charging phases, and the states of charge of the battery in different charging phases of the plurality of charging phases are different
  • the target parameter mapping relationship includes a one-to-one correspondence between the plurality of charging phases and the plurality of charging parameters
  • the communication control circuit 1110 is specifically configured to select, from the plurality of charging phases, the current charging corresponding to the current charging state. a step of determining, as the current charging parameter, a charging parameter corresponding to the current charging phase of the plurality of charging parameters.
  • the multiple charging phases include a first charging phase and a second charging phase, and the charging modes of the first charging phase and the second charging phase are different.
  • the communication control circuit 1110 is further configured to communicate with the mobile terminal to determine a charging mode, where the charging mode includes a fast charging mode and a normal charging mode, and the fast charging mode The charging speed is greater than the charging speed of the normal charging mode; in the case of determining to charge the battery using the fast charging mode, the communication control circuit is specifically configured to communicate with the mobile terminal to determine the fast charging mode a charging voltage and a charging current; adjusting the output voltage and the output current to a charging voltage and a charging current corresponding to the fast charging mode according to the current charging parameter to quickly charge the mobile terminal.
  • the fast charging mode satisfies at least the requirement that the average charging power of the battery should be greater than 15 W during the charging of the battery from 0% of the rated capacity to 80%.
  • the multiple parameter mapping relationship is determined based on a relationship between a maximum charging rate of the battery at the plurality of temperatures and a state of charge of the battery.
  • the parameter for indicating a current state of charge of the battery is a current state of charge of the battery or a current voltage of the battery.
  • FIG. 12 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • the mobile terminal 1200 of FIG. 12 includes a communication control circuit 1210 and a charging circuit 1220.
  • the communication control circuit 1210 is configured to acquire a state parameter of the battery after the mobile terminal 1200 is connected to the adapter through the charging interface, wherein the adapter passes the A power cord in the charging interface charges the battery, the mobile terminal 1200 communicates with the mobile terminal 1200 through a data line in the charging interface, the state parameter of the battery includes a current state for indicating the battery a parameter of the temperature, and a parameter for indicating a current state of charge of the battery; selecting, according to a current temperature of the battery, a mapping relationship of the target parameter corresponding to the current temperature from a plurality of parameter mapping relationships established in advance The plurality of parameter mapping relationships respectively correspond to a plurality of temperatures, wherein each parameter mapping relationship is used to indicate a mapping relationship between a state of charge of the battery and a charging parameter at a temperature
  • the charging process of the battery at the current temperature includes a plurality of charging phases, and the states of charge of the battery in different charging phases of the plurality of charging phases are different
  • the target parameter mapping relationship includes a one-to-one correspondence between the plurality of charging phases and a plurality of charging parameters
  • the communication control circuit 1210 is specifically configured to select, by the mobile terminal, the current state of charge from the plurality of charging phases Corresponding current charging phase; determining a charging parameter corresponding to the current charging phase among the plurality of charging parameters as the current charging parameter.
  • the multiple charging phases include a first charging phase and a second charging phase, and the charging modes of the first charging phase and the second charging phase are different.
  • the communication control circuit 1210 is further configured to communicate with the adapter to determine a charging mode, where the charging mode includes a fast charging mode and a normal charging mode, where the fast charging mode is The charging speed is greater than the charging speed of the normal charging mode; in the case of determining to use the fast charging mode, the communication control circuit is specifically configured to communicate with the adapter to determine a charging voltage and a charging current of the fast charging mode Communicating with the adapter to send the current charging parameter to the adapter, so that after the adapter receives the current charging parameter sent by the mobile terminal, adjusting the output voltage and the output current to the charging voltage corresponding to the fast charging mode And charging current to quickly charge the mobile terminal.
  • the multiple parameter mapping relationship is determined based on a relationship between a maximum charging rate of the battery at the plurality of temperatures and a state of charge of the battery.
  • the parameter for indicating a current state of charge of the battery is a current state of charge of the battery or a current voltage of the battery.
  • Figure 13 is a schematic configuration diagram of a communication system according to an embodiment of the present invention.
  • the communication system 1300 of FIG. 13 includes the adapter 1100 depicted in FIG. 11 and the mobile terminal 1200 depicted in FIG.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

一种充电方法、适配器（1100）、移动终端（1200）和充电系统（1300）。适配器与移动终端通过双向通信技术交互电池的状态参数，并基于电池的状态参数实时调整适配器的充电参数，提高了充电过程的灵活性。

Description

充电方法、适配器、移动终端和充电系统 技术领域
本发明实施例涉及充电领域，并且更具体地，涉及一种充电方法、适配器、移动终端和充电系统。
背景技术
目前，移动终端(如智能手机)越来越受到消费者的青睐，但是移动终端耗电量大，通常需要经常充电。
现有技术中，适配器可以选取的充电模式包括恒流模式、恒压模式或脉冲模式。适配器的充电模式一旦确定下来，该适配器就会按照固定的模式为移动终端充电。这种充电模式不够灵活，充电效果较差。
发明内容
本申请提供一种充电方法、适配器、移动终端和充电系统，以提高移动终端充电过程的灵活性。
第一方面，提供一种充电方法，用于控制适配器为移动终端内的电池充电，所述方法包括：在所述适配器与所述移动终端通过充电接口(充电接口例如可以是通用串行总线(Universal Serial Bus，USB)接口，该USB接口可以是普通的USB接口，也可以是micro USB接口)连接后，所述适配器与所述移动终端进行通信，以通过所述移动终端获取所述电池的状态参数，其中，所述适配器通过所述充电接口中的电源线为所述电池充电，所述适配器通过所述充电接口中的数据线与所述移动终端进行通信，所述电池的状态参数包括用于指示所述电池的当前温度的参数，以及用于指示所述电池的当前荷电状态(SOC，State Of Charge)的参数。用于指示所述电池的当前SOC的参数可以是电池的当前SOC，也可以电池的电压(电池的SOC和电压正相关)。所述适配器根据所述电池的当前温度，从预先建立的多个参数映射关系中选取所述当前温度对应的目标参数映射关系，所述多个参数映射关系分别对应多个温度，其中每个参数映射关系用于指示在所述每个参数映射关系对应的温度下，所述电池的荷电状态与充电参数的映射关系。例如，多个参数映射关系可以包括：在高温(如50摄氏度)下，电池的充电参数随电 池的SOC的变换关系；在常温(如20摄氏度)下，电池的充电参数随电池的SOC的变换关系；在低温(-5摄氏度)下，电池的充电参数随电池的SOC的变换关系。所述充电参数包括所述适配器的输出电压、输出电流以及充电模式中的至少一种，所述充电模式包括恒压充电、恒流充电以及脉冲充电中的至少一种；所述适配器根据所述电池的当前荷电状态，通过所述目标参数映射关系，确定所述当前充电参数；所述适配器根据所述当前充电参数，为所述移动终端中的电池充电。
适配器与移动终端保持通信，并交互电池的状态参数，以调整充电过程的充电参数(例如，调整适配器的输出电压、输出电流、充电模式等)，提高了充电过程的灵活性。
结合第一方面，在第一方面的第一种实现方式中，所述电池在所述当前温度下的充电过程包括多个充电阶段(或者，所述充电过程被划分成多个充电阶段)，所述电池在所述多个充电阶段中的不同充电阶段的荷电状态不同，所述目标参数映射关系包括所述多个充电阶段与多个充电参数的一一对应关系，所述适配器根据所述电池的当前荷电状态，通过所述目标参数映射关系，确定所述当前充电参数，包括：所述适配器从所述多个充电阶段中选取所述当前荷电状态对应的当前充电阶段；所述适配器将所述多个充电参数中的与所述当前充电阶段对应的充电参数确定为所述当前充电参数。
将充电过程划分为多个充电阶段，并为每个充电阶段配置其适合的充电参数，进一步提高了充电过程的灵活性。
结合第一方面的第一种实现方式，在第一方面的第二种实现方式中，所述多个充电阶段包括第一充电阶段和第二充电阶段，且所述第一充电阶段和所述第二充电阶段的充电模式不同。应理解，第一充电阶段和第二充电阶段为多个充电阶段中的任意两个充电阶段。
为不同的充电阶段配置各自适合的充电模式，而不局限于一种充电模式，进一步提高了充电过程的灵活性。
结合第一方面或其上述实现方式的任一种，在第一方面的第三种实现方式中，在所述适配器通过所述移动终端获取所述电池的状态参数之前，所述方法还包括：所述适配器与所述移动终端进行通信，以确定充电模式，其中所述充电模式包括快速充电模式和普通充电模式，所述快速充电模式的充电速度大于所述普通充电模式的充电速度；在确定使用快速充电模式为电池充 电的情况下，所述适配器通过所述移动终端获取电池的状态参数具体包括：所述适配器与所述移动终端进行通信，以确定所述快速充电模式的充电电压和充电电流；在确定使用快速充电模式为电池充电的情况下，所述适配器根据所述当前充电参数，为所述移动终端中的电池充电具体包括：所述适配器根据所述当前充电参数，将输出电压和输出电流调整至所述快速充电模式对应的充电电压和充电电流，以对所述移动终端进行快速充电。
在适配器与移动终端连接的过程中，适配器与移动终端之间经过多次握手通信，确保了整个充电过程的安全性。
第二方面，提供一种充电方法，所述方法包括：在移动终端与适配器通过充电接口连接后，所述移动终端获取电池的状态参数，其中，所述适配器通过所述充电接口中的电源线为所述电池充电，所述移动终端通过所述充电接口中的数据线与所述适配器进行通信，所述电池的状态参数包括用于指示所述电池的当前温度的参数，以及用于指示所述电池的当前荷电状态的参数；所述移动终端根据所述电池的当前温度，从预先建立的多个参数映射关系中选取所述当前温度对应的目标参数映射关系，所述多个参数映射关系分别对应多个温度，其中每个参数映射关系用于指示在所述每个参数映射关系对应的温度下，所述电池的荷电状态与充电参数的映射关系，所述充电参数包括所述适配器的输出电压、输出电流以及充电模式中的至少一种，所述充电模式包括恒压充电、恒流充电以及脉冲充电中的至少一种；所述移动终端根据所述电池的当前荷电状态，通过所述目标参数映射关系，确定所述当前充电参数；所述移动终端与所述适配器通信以向所述适配器发送所述当前充电参数，以便所述适配器根据接收到的所述当前充电参数为所述电池充电。
适配器与移动终端保持通信，通过交互电池的状态参数调整充电过程的充电参数，提高了充电过程的灵活性。
结合第二方面，在第二方面的第一种实现方式中，所述电池在所述当前温度下的充电过程包括多个充电阶段，所述电池在所述多个充电阶段中的不同充电阶段的荷电状态不同，所述目标参数映射关系包括所述多个充电阶段与多个充电参数的一一对应关系，所述移动终端根据所述电池的当前荷电状态，通过所述目标参数映射关系，确定所述当前充电参数，包括：所述移动终端从所述多个充电阶段中选取所述当前荷电状态对应的当前充电阶段；所述移动终端将所述多个充电参数中的与所述当前充电阶段对应的充电参数 确定为所述当前充电参数。
将充电过程划分为多个充电阶段，并为每个充电阶段配置其适合的充电参数，进一步提高了充电过程的灵活性。
结合第二方面的第一种实现方式，在第二方面的第二种实现方式中，所述多个充电阶段包括第一充电阶段和第二充电阶段，且所述第一充电阶段和所述第二充电阶段的充电模式不同。
为不同的充电阶段设置各自适合的充电模式，而不局限于一种充电模式，进一步提高了充电过程的灵活性。
结合第二方面或其上述实现方式的任一种，在第二方面的第三种实现方式中，在所述移动终端获取电池的状态参数之前，所述方法还包括：所述移动终端与所述适配器进行通信，以确定充电模式，其中所述充电模式包括快速充电模式和普通充电模式，所述快速充电模式的充电速度大于所述普通充电模式的充电速度；在确定使用快速充电模式的情况下，所述移动终端与所述适配器进行通信，以确定所述快速充电模式的充电电压和充电电流；所述移动终端与所述适配器通信以向所述适配器发送所述当前充电参数，具体包括：所述移动终端与所述适配器通信以向所述适配器发送所述当前充电参数，以便所述适配器接收到移动终端发送的当前充电参数后，将输出电压和输出电流调整至所述快速充电模式对应的充电电压和充电电流，对所述移动终端进行快速充电。
在适配器与移动终端连接的过程中，适配器与移动终端之间经过多次握手通信，确保了整个充电过程的安全性。
第三方面，提供一种适配器，包括用于执行第一方面中的方法的电路。
第四方面，提供一种移动终端，包括用于执行第二方面中的方法的电路。
第五方面，提供一种充电系统，包括第三方面描述的适配器，以及第四方面描述的移动终端。
在上述某些实现方式中，所述多个参数映射关系是基于所述电池在所述多个温度下的最大充电倍率随所述电池的荷电状态的变化关系而确定的。多个参数映射关系的选取可以使电池在整个充电过程的充电倍率接近最大充电倍率。
在上述某些实现方式中，所述用于指示所述电池的当前荷电状态的参数为所述电池的当前荷电状态或所述电池的当前电压。
在上述某些实现方式中，所述多个阶段中的至少一个阶段的充电模式为脉冲充电。
在上述某些实现方式中，所述脉冲充电包括正脉冲充电、负脉冲充电、正负脉冲充电中的至少一种。
在上述某些实现方式中，所述脉冲充电的充电电流为恒电流或变电流。
本申请中，适配器能够与移动终端进行通信，根据电池的状态参数调整充电参数，提高了移动终端充电过程的灵活性。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例中所需要使用的附图作简单地介绍。
图1是本发明实施例的充电方法的示意性流程图。
图2是常温下的最大充电倍率曲线的示意图。
图3是多个温度下的最大充电倍率曲线的示意图。
图4是最大充电倍率曲线的示意图，该最大充电倍率曲线包含多个充电阶段。
图5是恒流模式下的实际充电倍率曲线与最大充电倍率曲线的对比图。
图6是恒流+恒压模式下的实际充电倍率曲线与最大充电倍率曲线的对比图。
图7是脉冲充电电流的具体形式的示例图。
图8是脉冲充电电流的具体形式的示例图。
图9是脉冲充电电流的具体形式的示例图。
图10是脉冲充电电流的具体形式的示例图。
图11是本发明实施例的适配器的示意性结构图。
图12是本发明实施例的移动终端的示意性结构图。
图13是本发明实施例的通信系统的示意性结构图。
具体实施方式
为了能够根据电池的状态参数(温度、荷电状态、电压等)实时调整充电参数(充电电压、充电电流、充电模式等)，本发明实施例预先建立了多个参数映射关系。该多个参数映射关系分别对应多个温度，每个参数映射关 系用于指示在所述每个参数映射关系对应的温度下，所述电池的荷电状态与充电参数的映射关系。
实际使用时，可以先基于电池的当前温度从多个参数映射关系中选取该当前温度对应的目标参数映射关系；然后根据电池的荷电状态，通过该目标参数映射关系，确定当前充电参数。
应理解，上述多个参数映射关系的信息可以存储于适配器中，也可以存储于移动终端中，这取决于充电参数的确定主体是适配器还是移动终端。例如，可以由移动终端负责采集电池的状态参数，并将该电池的状态参数通过USB接口中的数据线发送至适配器；适配器作为确定充电参数的主体，根据电池的状态参数和存储在适配器中的多个参数映射关系的信息，确定当前充电参数。或者，移动终端作为确定充电参数的主体，不但负责采集电池的状态参数，还负责根据电池的状态参数和存储在移动终端的多个参数映射关系的信息，确定当前充电参数，然后将当前充电参数发送至适配器。
还应理解，本发明实施例中的多个参数映射关系可以是基于所述电池在多个温度下的最大充电倍率随电池的荷电状态的变化关系而确定的。最大充电倍率随所述电池的荷电状态的变化关系可以通过最大充电倍率曲线表示。例如，为了确定15摄氏度对应的参数映射关系，可以先确定电池在15摄氏度下的最大充电倍率曲线(后文会对最大充电倍率曲线的确定方式进行详细描述)，然后基于该最大充电倍率曲线选取各荷电状态对应的充电参数，充电参数的选取原则可以是：当适配器按照此充电参数为15摄氏度的电池充电时，整个充电过程的充电倍率尽量接近15摄氏度对应的最大充电倍率曲线。
下文结合具体的例子，详细描述本发明实施例的充电方法(含参数映射关系的确定过程)。
图1是本发明实施例的充电方法的示意性流程图。图1的方法包括：
S110、获得电池在不同温度下的最大充电倍率曲线。
具体地，锂离子电池充电过程中，阴极电位持续上升，阳极电位持续降低。当阳极电位低于0V时，Li+(锂离子)会在阳极析出，形成锂枝晶，即“析锂”。析锂不仅会影响电池的电化学性能，而且会降低电池的安全性。因此，在电池使用过程中，需要尽量避免电池析锂的情况出现。通常，如果温度越低、充电倍率越大，锂离子电池越容易出现析锂的情况。
用户/使用者/电池厂商/终端厂商可通过三电极法获得电池在不同温度下的最大充电倍率曲线，三电极法的大致测量过程包括：首先，在电池阴阳极之间植入锂金属电极作为参比电极；其次，固定电池的温度和充电倍率，在电池充放电过程中，实时监测阴极、阳极的电位；当阳极的电位为0V时，阳极开始出现析锂现象，记录此时电池的SOC(后文称为析锂SOC)。通过测试，可以获得电池在不同温度、不同充电倍率下的析锂SOC，即，电池在不同温度下的最大充电倍率曲线。
例如，表1示出了在常温条件(电池的常温的范围一般在10-35℃之间，比如，可以是20℃)下，某款电池的充电倍率与析锂SOC的对应关系。
表1
充电倍率 SOC
1.5C 60％
1.0C 75％
0.8C 85％
… …
基于表1提供的数据，可以绘制出电池在常温下的最大充电倍率曲线，如图2所示。在同一温度下，所测量的倍率点越多，得到的最大充电倍率曲线越精确。
接下来，可以按照同样的方式，测量电池在多种温度下的最大充电倍率曲线。例如，可以测量电池在高温(如50摄氏度)、常温(如20摄氏度)、低温(如-5摄氏度)下的最大充电倍率曲线，得到图3所示的曲线图。
在得到多个温度下的最大充电倍率曲线之后，就可以基于得到的最大充电倍率曲线确定多个温度下的充电参数映射关系(即SOC与充电参数的映射关系)。不同SOC可以对应不同的充电参数，该充电参数的选取使得整个充电过程的充电倍率曲线尽量接近最大充电倍率曲线，这样既可以保证充电安全，也可以提高充电速度。可选地，为了简化计算，可以将最大充电倍率曲线划分成多个充电阶段，同一充电阶段使用相同的充电参数，详见步骤120和130。
S120、将特定温度下的最大充电倍率曲线细化成N(N＞1)个充电阶段，参见图4。
S130、为N个充电阶段中的每个充电阶段确定充电参数。
例如，为各充电阶段确定充电模式、充电电流、充电电压中的一种或多种。例如，当整个充电过程采用恒压充电时，各充电阶段的充电参数可以包括充电电流；当整个充电过程采用恒流充电时，各充电阶段的充电参数可以包括充电电压；当整个充电过程可以使用多种充电模式时，各充电阶段的充电参数可以包括充电模式。各充电阶段的充电参数的选取原则可以是：当使用该充电参数为电池充电时，电池的充电倍率尽量接近当前允许的最大充电倍率。下文给出各充电阶段的充电参数的选取方式的示例。
如图5所示，N个充电阶段均可以采用恒流模式充电，不同充电阶段的电流不同。从图5可以看出，各充电阶段的充电电流的选取使得实际的充电倍率曲线尽量贴近最大充电倍率曲线，但不超过最大充电倍率曲线。同理，在图6中，每个充电阶段均采用“恒流+恒压”的充电模式，充电参数的选取与图5的选取原则相同。
进一步地，N个充电阶段中的一个或多个充电阶段还可以采用脉冲充电模式。与传统的恒流、恒压充电模式相比，脉冲充电能够有效地缩短充电时间。采用大电流脉冲充电，在脉冲停止的瞬间，通过停充适当的时间，或者短时间的负脉冲，能进一步有效地抑制电池充电过程中产生的极化，从而提高充电的效率。脉冲充电模式可以包括恒电流脉冲，变电流脉冲及正负脉冲等，每个充电阶段可以使用相同的脉冲充电模式，也可以使用不同的脉冲充电模式。进一步地，N个充电阶段可以采用上述各种充电模式中的一种或多种，本发明实施例对此不做具体限定。下面结合图7-图10，详细描述脉冲充电模式可以使用的脉冲电流的具体形式。
图7和图8中的脉冲电流均采用脉冲信号+停充适当时间的形式，图7和图8的不同之处在于图7中的脉冲信号是恒电流脉冲信号，图8中的脉冲信号是变电流脉冲信号。对于脉冲信号+停充适当时间的脉冲电流而言，适当时间的停充可以使电池内部处于驰豫过程，驰豫过程可以缓解析锂现象的发生。
图9中的脉冲电流采用的是正脉冲信号+短暂负脉冲信号的形式。使用负脉冲对电池充电相当于电池的主动放电过程，可以加速电池内部的驰豫过程，与图7和图8中的停充方式相比，负脉冲能够缩短驰豫时间，极大地缓和析锂现象。图9以正脉冲信号为恒流脉冲信号举例，该正脉冲信号也可以是变电流脉冲信号。图10是以上脉冲电流形式的结合，此处不再详述。
S140、适配器和移动终端双向通信，实时交互电池的状态参数，并根据电池的状态参数以及多个参数映射关系确定对应的充电参数。
应理解，步骤S110至S130可以离线确定，实际交互时，直接使用通过步骤S110至S130确定出的充电参数映射关系即可。
本发明实施例在保证电池性能及安全的前提下，最大限度地提高充电速率，提高充电效率，从而缩短充电时间。
上文结合图1至图10，详细描述了根据本发明实施例的充电方法。下文结合图11至图12，详细描述根据本发明实施例的适配器和移动终端。应理解，装置侧涉及的术语和特征与方法侧类似，为了简洁，适当省略重复的描述。
图11是本发明实施例的适配器的示意性结构图。图11的适配器1100包括通信控制电路1110和充电电路1120，所述通信控制电路1110用于在所述适配器1100与移动终端通过充电接口连接后，与所述移动终端进行通信，以通过所述移动终端获取电池的状态参数，其中，所述适配器1100通过所述充电接口中的电源线为所述电池充电，所述适配器1100通过所述充电接口中的数据线与所述移动终端进行通信，所述电池的状态参数包括用于指示所述电池的当前温度的参数，以及用于指示所述电池的当前荷电状态的参数；根据所述电池的当前温度，从预先建立的多个参数映射关系中选取所述当前温度对应的目标参数映射关系，所述多个参数映射关系分别对应多个温度，其中每个参数映射关系用于指示在所述每个参数映射关系对应的温度下，所述电池的荷电状态与充电参数的映射关系，所述充电参数包括所述适配器1100的输出电压、输出电流以及充电模式中的至少一种，所述充电模式包括恒压充电、恒流充电以及脉冲充电中的至少一种；根据所述电池的当前荷电状态，通过所述目标参数映射关系，确定所述当前充电参数；根据所述当前充电参数，通过所述充电电路1120为所述移动终端中的电池充电。
可选地，作为一个实施例，所述电池在所述当前温度下的充电过程包括多个充电阶段，所述电池在所述多个充电阶段中的不同充电阶段的荷电状态不同，所述目标参数映射关系包括所述多个充电阶段与多个充电参数的一一对应关系，所述通信控制电路1110具体用于从所述多个充电阶段中选取所述当前荷电状态对应的当前充电阶段；将所述多个充电参数中的与所述当前充电阶段对应的充电参数确定为所述当前充电参数。
可选地，作为一个实施例，所述多个充电阶段包括第一充电阶段和第二充电阶段，且所述第一充电阶段和所述第二充电阶段的充电模式不同。
可选地，作为一个实施例，所述通信控制电路1110还用于与所述移动终端进行通信，以确定充电模式，其中所述充电模式包括快速充电模式和普通充电模式，所述快速充电模式的充电速度大于所述普通充电模式的充电速度；在确定使用快速充电模式为电池充电的情况下，所述通信控制电路具体用于与所述移动终端进行通信，以确定所述快速充电模式的充电电压和充电电流；根据所述当前充电参数，将输出电压和输出电流调整至所述快速充电模式对应的充电电压和充电电流，以对所述移动终端进行快速充电。
可选地，作为一个实施例，所述快速充电模式至少满足如下要求：所述电池电量从额定容量的0％充电至80％期间内，电池的平均充电功率应大于15W。
可选地，作为一个实施例，所述多个参数映射关系是基于所述电池在所述多个温度下的最大充电倍率随所述电池的荷电状态的变化关系而确定的。
可选地，作为一个实施例，所述用于指示所述电池的当前荷电状态的参数为所述电池的当前荷电状态或所述电池的当前电压。
图12是本发明实施例的移动终端的示意性结构图。图12的移动终端1200包括通信控制电路1210和充电电路1220，所述通信控制电路1210用于在移动终端1200与适配器通过充电接口连接后，获取电池的状态参数，其中，所述适配器通过所述充电接口中的电源线为所述电池充电，所述移动终端1200通过所述充电接口中的数据线与所述移动终端1200进行通信，所述电池的状态参数包括用于指示所述电池的当前温度的参数，以及用于指示所述电池的当前荷电状态的参数；根据所述电池的当前温度，从预先建立的多个参数映射关系中选取所述当前温度对应的目标参数映射关系，所述多个参数映射关系分别对应多个温度，其中每个参数映射关系用于指示在所述每个参数映射关系对应的温度下，所述电池的荷电状态与充电参数的映射关系，所述充电参数包括所述适配器的输出电压、输出电流以及充电模式中的至少一种，所述充电模式包括恒压充电、恒流充电以及脉冲充电中的至少一种；根据所述电池的当前荷电状态，通过所述目标参数映射关系，确定所述当前充电参数；与所述适配器通信以向所述适配器发送所述当前充电参数，以便所述适配器根据接收到的所述当前充电参数通过所述充电电路1220为所述 电池充电。
可选地，作为一个实施例，所述电池在所述当前温度下的充电过程包括多个充电阶段，所述电池在所述多个充电阶段中的不同充电阶段的荷电状态不同，所述目标参数映射关系包括所述多个充电阶段与多个充电参数的一一对应关系，所述通信控制电路1210具体用于所述移动终端从所述多个充电阶段中选取所述当前荷电状态对应的当前充电阶段；将所述多个充电参数中的与所述当前充电阶段对应的充电参数确定为所述当前充电参数。
可选地，作为一个实施例，所述多个充电阶段包括第一充电阶段和第二充电阶段，且所述第一充电阶段和所述第二充电阶段的充电模式不同。
可选地，作为一个实施例，所述通信控制电路1210还用于与所述适配器进行通信，以确定充电模式，其中所述充电模式包括快速充电模式和普通充电模式，所述快速充电模式的充电速度大于所述普通充电模式的充电速度；在确定使用快速充电模式的情况下，所述通信控制电路具体用于与所述适配器进行通信，以确定所述快速充电模式的充电电压和充电电流；与所述适配器通信以向所述适配器发送所述当前充电参数，以便所述适配器接收到移动终端发送的当前充电参数后，将输出电压和输出电流调整至所述快速充电模式对应的充电电压和充电电流，对所述移动终端进行快速充电。
可选地，作为一个实施例，所述多个参数映射关系是基于所述电池在所述多个温度下的最大充电倍率随所述电池的荷电状态的变化关系而确定的。
可选地，作为一个实施例，所述用于指示所述电池的当前荷电状态的参数为所述电池的当前荷电状态或所述电池的当前电压。
图13是本发明实施例的通信系统的示意性结构图。图13的通信系统1300包括图11描述的适配器1100和图12描述的移动终端1200。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应所述以权利要求的保护范围为准。

Claims (37)

  1. 一种充电方法，用于控制适配器为移动终端内的电池充电，其特征在于，所述方法包括：
    在所述适配器与所述移动终端通过充电接口连接后，所述适配器与所述移动终端进行通信，以通过所述移动终端获取所述电池的状态参数，其中，所述适配器通过所述充电接口中的电源线为所述电池充电，所述适配器通过所述充电接口中的数据线与所述移动终端进行通信，所述电池的状态参数包括用于指示所述电池的当前温度的参数，以及用于指示所述电池的当前荷电状态的参数；
    所述适配器根据所述电池的当前温度，从预先建立的多个参数映射关系中选取所述当前温度对应的目标参数映射关系，所述多个参数映射关系分别对应多个温度，其中每个参数映射关系用于指示在所述每个参数映射关系对应的温度下，所述电池的荷电状态与充电参数的映射关系，所述充电参数包括所述适配器的输出电压、输出电流以及充电模式中的至少一种，所述充电模式包括恒压充电、恒流充电以及脉冲充电中的至少一种；
    所述适配器根据所述电池的当前荷电状态，通过所述目标参数映射关系，确定所述当前充电参数；
    所述适配器根据所述当前充电参数，为所述移动终端中的电池充电。
  2. 如权利要求1所述的方法，其特征在于，所述电池在所述当前温度下的充电过程包括多个充电阶段，所述电池在所述多个充电阶段中的不同充电阶段的荷电状态不同，所述目标参数映射关系包括所述多个充电阶段与多个充电参数的一一对应关系，
    所述适配器根据所述电池的当前荷电状态，通过所述目标参数映射关系，确定所述当前充电参数，包括：
    所述适配器从所述多个充电阶段中选取所述当前荷电状态对应的当前充电阶段；
    所述适配器将所述多个充电参数中的与所述当前充电阶段对应的充电参数确定为所述当前充电参数。
  3. 如权利要求2所述的方法，其特征在于，所述多个充电阶段包括第一充电阶段和第二充电阶段，且所述第一充电阶段和所述第二充电阶段的充电模式不同。
  4. 如权利要求2或3所述的方法，其特征在于，所述多个阶段中的至少一个阶段的充电模式为脉冲充电。
  5. 如权利要求4所述的方法，其特征在于，所述脉冲充电包括正脉冲充电、负脉冲充电、正负脉冲充电中的至少一种。
  6. 如权利要求4或5所述的方法，其特征在于，所述脉冲充电的充电电流为恒电流或变电流。
  7. 如权利要求1-6中任一项所述的方法，其特征在于，在所述适配器通过所述移动终端获取所述电池的状态参数之前，所述方法还包括：
    所述适配器与所述移动终端进行通信，以确定充电模式，其中所述充电模式包括快速充电模式和普通充电模式，所述快速充电模式的充电速度大于所述普通充电模式的充电速度；
    在确定使用快速充电模式为电池充电的情况下，所述适配器通过所述移动终端获取电池的状态参数具体包括：
    所述适配器与所述移动终端进行通信，以确定所述快速充电模式的充电电压和充电电流；
    在确定使用快速充电模式为电池充电的情况下，所述适配器根据所述当前充电参数，为所述移动终端中的电池充电具体包括：
    所述适配器根据所述当前充电参数，将输出电压和输出电流调整至所述快速充电模式对应的充电电压和充电电流，以对所述移动终端进行快速充电。
  8. 如权利要求1-7中任一项所述的方法，其特征在于，所述多个参数映射关系是基于所述电池在所述多个温度下的最大充电倍率随所述电池的荷电状态的变化关系而确定的。
  9. 如权利要求1-8中任一项所述的方法，其特征在于，所述用于指示所述电池的当前荷电状态的参数为所述电池的当前荷电状态或所述电池的当前电压。
  10. 一种充电方法，其特征在于，所述方法包括：
    在移动终端与适配器通过充电接口连接后，所述移动终端获取电池的状态参数，其中，所述适配器通过所述充电接口中的电源线为所述电池充电，所述移动终端通过所述充电接口中的数据线与所述适配器进行通信，所述电池的状态参数包括用于指示所述电池的当前温度的参数，以及用于指示所述电池的当前荷电状态的参数；
    所述移动终端根据所述电池的当前温度，从预先建立的多个参数映射关系中选取所述当前温度对应的目标参数映射关系，所述多个参数映射关系分别对应多个温度，其中每个参数映射关系用于指示在所述每个参数映射关系对应的温度下，所述电池的荷电状态与充电参数的映射关系，所述充电参数包括所述适配器的输出电压、输出电流以及充电模式中的至少一种，所述充电模式包括恒压充电、恒流充电以及脉冲充电中的至少一种；
    所述移动终端根据所述电池的当前荷电状态，通过所述目标参数映射关系，确定所述当前充电参数；
    所述移动终端与所述适配器通信以向所述适配器发送所述当前充电参数，以便所述适配器根据接收到的所述当前充电参数为所述电池充电。
  11. 如权利要求10所述的方法，其特征在于，所述电池在所述当前温度下的充电过程包括多个充电阶段，所述电池在所述多个充电阶段中的不同充电阶段的荷电状态不同，所述目标参数映射关系包括所述多个充电阶段与多个充电参数的一一对应关系，
    所述移动终端根据所述电池的当前荷电状态，通过所述目标参数映射关系，确定所述当前充电参数，包括：
    所述移动终端从所述多个充电阶段中选取所述当前荷电状态对应的当前充电阶段；
    所述移动终端将所述多个充电参数中的与所述当前充电阶段对应的充电参数确定为所述当前充电参数。
  12. 如权利要求11所述的方法，其特征在于，所述多个充电阶段包括第一充电阶段和第二充电阶段，且所述第一充电阶段和所述第二充电阶段的充电模式不同。
  13. 如权利要求11或12所述的方法，其特征在于，所述多个阶段中的至少一个阶段的充电模式为脉冲充电。
  14. 如权利要求13所述的方法，其特征在于，所述脉冲充电包括正脉冲充电、负脉冲充电、正负脉冲充电中的至少一种。
  15. 如权利要求13或14所述的方法，其特征在于，所述脉冲充电的充电电流为恒电流或变电流。
  16. 如权利要求10-15中任一项所述的方法，其特征在于，在所述移动终端获取电池的状态参数之前，所述方法还包括：
    所述移动终端与所述适配器进行通信，以确定充电模式，其中所述充电模式包括快速充电模式和普通充电模式，所述快速充电模式的充电速度大于所述普通充电模式的充电速度；
    在确定使用快速充电模式的情况下，所述移动终端与所述适配器进行通信，以确定所述快速充电模式的充电电压和充电电流；
    所述移动终端与所述适配器通信以向所述适配器发送所述当前充电参数，具体包括：
    所述移动终端与所述适配器通信以向所述适配器发送所述当前充电参数，以便所述适配器接收到移动终端发送的当前充电参数后，将输出电压和输出电流调整至所述快速充电模式对应的充电电压和充电电流，对所述移动终端进行快速充电。
  17. 如权利要求10-16中任一项所述的方法，其特征在于，所述多个参数映射关系是基于所述电池在所述多个温度下的最大充电倍率随所述电池的荷电状态的变化关系而确定的。
  18. 如权利要求10-17中任一项所述的方法，其特征在于，所述用于指示所述电池的当前荷电状态的参数为所述电池的当前荷电状态或所述电池的当前电压。
  19. 一种适配器，其特征在于，所述适配器包括通信控制电路和充电电路，
    所述通信控制电路用于在所述适配器与移动终端通过充电接口连接后，与所述移动终端进行通信，以通过所述移动终端获取电池的状态参数，其中，所述适配器通过所述充电接口中的电源线为所述电池充电，所述适配器通过所述充电接口中的数据线与所述移动终端进行通信，所述电池的状态参数包括用于指示所述电池的当前温度的参数，以及用于指示所述电池的当前荷电状态的参数；根据所述电池的当前温度，从预先建立的多个参数映射关系中选取所述当前温度对应的目标参数映射关系，所述多个参数映射关系分别对应多个温度，其中每个参数映射关系用于指示在所述每个参数映射关系对应的温度下，所述电池的荷电状态与充电参数的映射关系，所述充电参数包括所述适配器的输出电压、输出电流以及充电模式中的至少一种，所述充电模式包括恒压充电、恒流充电以及脉冲充电中的至少一种；根据所述电池的当前荷电状态，通过所述目标参数映射关系，确定所述当前充电参数；根据所 述当前充电参数，通过所述充电电路为所述移动终端中的电池充电。
  20. 如权利要求19所述的适配器，其特征在于，所述电池在所述当前温度下的充电过程包括多个充电阶段，所述电池在所述多个充电阶段中的不同充电阶段的荷电状态不同，所述目标参数映射关系包括所述多个充电阶段与多个充电参数的一一对应关系，
    所述通信控制电路具体用于从所述多个充电阶段中选取所述当前荷电状态对应的当前充电阶段；将所述多个充电参数中的与所述当前充电阶段对应的充电参数确定为所述当前充电参数。
  21. 如权利要求20所述的适配器，其特征在于，所述多个充电阶段包括第一充电阶段和第二充电阶段，且所述第一充电阶段和所述第二充电阶段的充电模式不同。
  22. 如权利要求20或21所述的适配器，其特征在于，所述多个阶段中的至少一个阶段的充电模式为脉冲充电。
  23. 如权利要求22所述的适配器，其特征在于，所述脉冲充电包括正脉冲充电、负脉冲充电、正负脉冲充电中的至少一种。
  24. 如权利要求22或23所述的适配器，其特征在于，所述脉冲充电的充电电流为恒电流或变电流。
  25. 如权利要求19-24中任一项所述的适配器，其特征在于，所述通信控制电路还用于与所述移动终端进行通信，以确定充电模式，其中所述充电模式包括快速充电模式和普通充电模式，所述快速充电模式的充电速度大于所述普通充电模式的充电速度；
    在确定使用快速充电模式为电池充电的情况下，所述通信控制电路具体用于与所述移动终端进行通信，以确定所述快速充电模式的充电电压和充电电流；根据所述当前充电参数，将输出电压和输出电流调整至所述快速充电模式对应的充电电压和充电电流，以对所述移动终端进行快速充电。
  26. 如权利要求19-25中任一项所述的适配器，其特征在于，所述多个参数映射关系是基于所述电池在所述多个温度下的最大充电倍率随所述电池的荷电状态的变化关系而确定的。
  27. 如权利要求19-26中任一项所述的适配器，其特征在于，所述用于指示所述电池的当前荷电状态的参数为所述电池的当前荷电状态或所述电池的当前电压。
  28. 一种移动终端，其特征在于，所述移动终端包括：通信控制电路和充电电路，
    所述通信控制电路用于在移动终端与适配器通过充电接口连接后，获取电池的状态参数，其中，所述适配器通过所述充电接口中的电源线为所述电池充电，所述移动终端通过所述充电接口中的数据线与所述移动终端进行通信，所述电池的状态参数包括用于指示所述电池的当前温度的参数，以及用于指示所述电池的当前荷电状态的参数；根据所述电池的当前温度，从预先建立的多个参数映射关系中选取所述当前温度对应的目标参数映射关系，所述多个参数映射关系分别对应多个温度，其中每个参数映射关系用于指示在所述每个参数映射关系对应的温度下，所述电池的荷电状态与充电参数的映射关系，所述充电参数包括所述适配器的输出电压、输出电流以及充电模式中的至少一种，所述充电模式包括恒压充电、恒流充电以及脉冲充电中的至少一种；根据所述电池的当前荷电状态，通过所述目标参数映射关系，确定所述当前充电参数；与所述适配器通信以向所述适配器发送所述当前充电参数，以便所述适配器根据接收到的所述当前充电参数通过所述充电电路为所述电池充电。
  29. 如权利要求28所述的移动终端，其特征在于，所述电池在所述当前温度下的充电过程包括多个充电阶段，所述电池在所述多个充电阶段中的不同充电阶段的荷电状态不同，所述目标参数映射关系包括所述多个充电阶段与多个充电参数的一一对应关系，
    所述通信控制电路具体用于所述移动终端从所述多个充电阶段中选取所述当前荷电状态对应的当前充电阶段；将所述多个充电参数中的与所述当前充电阶段对应的充电参数确定为所述当前充电参数。
  30. 如权利要求20所述的移动终端，其特征在于，所述多个充电阶段包括第一充电阶段和第二充电阶段，且所述第一充电阶段和所述第二充电阶段的充电模式不同。
  31. 如权利要求29或30所述的移动终端，其特征在于，所述多个阶段中的至少一个阶段的充电模式为脉冲充电。
  32. 如权利要求31所述的移动终端，其特征在于，所述脉冲充电包括正脉冲充电、负脉冲充电、正负脉冲充电中的至少一种。
  33. 如权利要求31或32所述的移动终端，其特征在于，所述脉冲充电 的充电电流为恒电流或变电流。
  34. 如权利要求28-33中任一项所述的移动终端，其特征在于，所述通信控制电路还用于与所述适配器进行通信，以确定充电模式，其中所述充电模式包括快速充电模式和普通充电模式，所述快速充电模式的充电速度大于所述普通充电模式的充电速度；在确定使用快速充电模式的情况下，所述通信控制电路具体用于与所述适配器进行通信，以确定所述快速充电模式的充电电压和充电电流；与所述适配器通信以向所述适配器发送所述当前充电参数，以便所述适配器接收到移动终端发送的当前充电参数后，将输出电压和输出电流调整至所述快速充电模式对应的充电电压和充电电流，对所述移动终端进行快速充电。
  35. 如权利要求28-34中任一项所述的移动终端，其特征在于，所述多个参数映射关系是基于所述电池在所述多个温度下的最大充电倍率随所述电池的荷电状态的变化关系而确定的。
  36. 如权利要求28-35中任一项所述的移动终端，其特征在于，所述用于指示所述电池的当前荷电状态的参数为所述电池的当前荷电状态或所述电池的当前电压。
  37. 一种充电系统，包括如权利要求19-27中任一项所述的适配器，以及如权利要求28-36中任一项所述的移动终端。
PCT/CN2016/075228 2016-03-01 2016-03-01 充电方法、适配器、移动终端和充电系统 Ceased WO2017147791A1 (zh)

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