CN112216887A - Quick charging method for lithium ion battery - Google Patents

Quick charging method for lithium ion battery Download PDF

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Publication number
CN112216887A
CN112216887A CN202010940664.1A CN202010940664A CN112216887A CN 112216887 A CN112216887 A CN 112216887A CN 202010940664 A CN202010940664 A CN 202010940664A CN 112216887 A CN112216887 A CN 112216887A
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lithium ion
ion battery
charging
heat dissipation
voltage value
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CN202010940664.1A
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李龙德
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    • 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
    • H01M10/446—Initial charging measures
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a lithium ion battery quick charging method, which belongs to the technical field of lithium batteries and solves the problems that the battery capacity of a lithium battery is easy to reduce and the service life of the lithium battery is shortened by adopting the existing method to charge the lithium battery, and is technically characterized in that: verifying the maximum value of the polarization voltage of the lithium ion battery to be charged; taking a lithium ion battery, and then adopting constant current I to the lithium ion batteryCharging, and then charging the lithium ion battery to a set value UAAfter the electric quantity in the lithium ion battery is exhausted, repeatedly charging the lithium ion battery for 5-15 times; measuring the voltage of the lithium ion battery at intervals of 2 minutes by using a voltmeter, and recording a real-time voltage value UB(ii) a The embodiment of the invention has the advantages that the charging is rapid, the generation speed of lithium ions in the lithium ion battery is realized by adjusting the charging current, the sum of the generation speed and the running speed of the lithium ions is smaller than the speed of the lithium intercalation reaction of the graphite layer, and the charging efficiency of the lithium ion battery is further improved.

Description

Quick charging method for lithium ion battery
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a quick charging method for a lithium ion battery.
Background
At present, the electric automobile usually adopts a lithium battery as a power source, and compared with a power lead-acid battery, the power lithium battery has the advantages of high energy density, long service life and the like. Common power lithium batteries include ternary batteries, LTO, LMO and the like, and under the advocation of an energy-saving and environment-friendly lithium ion battery quick charging method, the electric automobile gradually replaces a fuel automobile to serve as one of travel tools of people, so that how to quickly and safely charge the power lithium batteries becomes a problem to be solved urgently.
Chinese patent CN106469838A discloses a charging method and device for a cylindrical power lithium ion battery, which is used for charging the cylindrical power lithium ion battery with a positive tab in a gap of a positive plate in the middle of a winding core, and the charging method for the cylindrical power lithium ion battery is to limit the maximum charging voltage and charging current, so that the sum of the generation speed and the running speed of lithium ions in the cylindrical power lithium ion battery is less than or equal to the speed of the graphite layer lithium intercalation reaction. The charging device of the cylindrical power lithium ion battery comprises a charging module and a control module which are connected with each other, wherein the control module is used for connecting the cylindrical power lithium ion battery, but the lithium ion battery is charged by adopting the method, the battery capacity of the lithium ion battery is easy to reduce, and the service life of the lithium ion battery is shortened, so that the lithium ion battery quick charging method is provided.
Disclosure of Invention
The invention aims to provide a quick charging method for a lithium ion battery, which aims to solve the problems that the battery capacity of the lithium battery is easy to reduce and the service life of the lithium battery is shortened when the lithium battery is charged by adopting the conventional method.
In order to achieve the purpose, the invention provides the following technical scheme:
a quick charging method for a lithium ion battery comprises the following steps:
s1, verifying the maximum value of the polarization voltage of the lithium ion battery to be charged;
s101, taking a lithium ion battery, charging the lithium ion battery by adopting constant current I, and then charging the lithium ion battery to a set value UAAfter the electric quantity in the lithium ion battery is exhausted, repeatedly charging the lithium ion battery for 5-15 times;
s102, measuring the voltage of the lithium ion battery at intervals of 2 minutes by using a voltmeter, and recording a real-time voltage value UBAnd recording the voltage valueA voltage database and a voltage curve table are manufactured;
s103, calculating and measuring the maximum voltage value, the minimum voltage value and the average voltage value of the repeatedly charged lithium ion battery, then measuring the lithium ion battery according to the average voltage value, and calculating the error of the maximum voltage value and the average voltage value;
s2, pre-charging the lithium ion battery;
s201, pre-charging the lithium ion battery according to the maximum voltage value of the lithium ion battery, wherein the pre-charging value is 80% of the maximum voltage value, and meanwhile, the pre-charging current is adjusted to be IA；
S202, after the pre-charging is finished, standing the lithium ion battery, and then charging the lithium ion battery;
and S3, rapidly charging the lithium ion battery, connecting the lithium ion battery after standing in series, performing constant voltage charging, and placing the lithium ion battery in an auxiliary device for heat dissipation treatment after charging is finished.
As a further scheme of the invention: in step S201, IAIs three times I.
As a still further scheme of the invention: in step S202, the standing time was 5 minutes.
As a still further scheme of the invention: in the step S3, the auxiliary device includes a heat dissipation plate, the heat dissipation plate is in a rectangular plate structure, a plurality of heat dissipation grooves for heat dissipation are uniformly distributed on the heat dissipation plate, a heat dissipation net is installed in the heat dissipation grooves, the heat dissipation grooves and the heat dissipation net are connected through buckles, and a plurality of cold air release ports are circumferentially arranged on the side wall of the heat dissipation groove;
the mounting groove has been seted up at the middle part of heating panel, is provided with the condensing engine in the mounting groove, and the condensing engine is connected with air conditioning release mouth through the air duct.
Compared with the prior art, the invention has the beneficial effects that: the embodiment of the invention has the advantages that the charging is rapid, the generation speed of lithium ions in the lithium ion battery is realized by adjusting the charging current, the sum of the generation speed and the running speed of the lithium ions is smaller than the speed of the lithium embedding reaction of the graphite layer, the charging efficiency of the lithium ion battery is further improved, the heat dissipation efficiency of the lithium battery is improved by the aid of the auxiliary device, and the service life of the lithium battery is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of an auxiliary device according to the present invention.
In the figure: 1-heat dissipation plate, 2-heat dissipation groove, 3-installation groove and 4-heat dissipation net.
Detailed Description
The technical solutions of the present invention will be described in further detail with reference to specific embodiments, and it should be apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, in an embodiment of the present invention, a method for fast charging a lithium ion battery includes the following steps:
s1, verifying the maximum value of the polarization voltage of the lithium ion battery to be charged;
s101, taking a lithium ion battery, charging the lithium ion battery by adopting constant current I, and then charging the lithium ion battery to a set value UAAfter the electric quantity in the lithium ion battery is exhausted, repeatedly charging the lithium ion battery for 5 times;
s102, measuring the voltage of the lithium ion battery at intervals of 2 minutes by using a voltmeter, and recording a real-time voltage value UBRecording the voltage value into a voltage database, and making a voltage curve table;
s103, calculating and measuring the maximum voltage value, the minimum voltage value and the average voltage value of the repeatedly charged lithium ion battery, then measuring the lithium ion battery according to the average voltage value, and calculating the error of the maximum voltage value and the average voltage value;
s2, pre-charging the lithium ion battery;
s201, pre-charging the lithium ion battery according to the maximum voltage value of the lithium ion battery, wherein the pre-charging value is 80% of the maximum voltage value, and meanwhile, the pre-charging current is adjusted to be IA；
S202, after the pre-charging is finished, standing the lithium ion battery, and then charging the lithium ion battery;
and S3, rapidly charging the lithium ion battery, connecting the lithium ion battery after standing in series, performing constant voltage charging, and placing the lithium ion battery in an auxiliary device for heat dissipation treatment after charging is finished.
In step S201, IAIs three times I.
In step S202, the standing time was 5 minutes.
In the step S3, the auxiliary device includes a heat dissipation plate 1, the heat dissipation plate 1 is a rectangular plate-shaped structure, a plurality of heat dissipation grooves 2 for heat dissipation are uniformly distributed on the heat dissipation plate 1, a heat dissipation net 4 is installed in the heat dissipation grooves 2, the heat dissipation grooves 2 and the heat dissipation net 4 are connected through buckles, and a plurality of cold air release ports are circumferentially arranged on the side wall of the heat dissipation groove 2;
mounting groove 3 has been seted up at the middle part of heating panel 1, is provided with the condensing engine in the mounting groove 3, and the condensing engine is connected with air conditioning release mouth through the air duct.
Example 2
Referring to fig. 1, in an embodiment of the present invention, a method for fast charging a lithium ion battery includes the following steps:
s1, verifying the maximum value of the polarization voltage of the lithium ion battery to be charged;
s101, taking a lithium ion battery, charging the lithium ion battery by adopting constant current I, and then charging the lithium ion battery to a set value UAAfter the electric quantity in the lithium ion battery is exhausted, repeatedly charging the lithium ion battery for 15 times;
s102, measuring the voltage of the lithium ion battery at intervals of 2 minutes by using a voltmeter, and recording a real-time voltage value UBRecording the voltage value into a voltage database, and making a voltage curve table;
s103, calculating and measuring the maximum voltage value, the minimum voltage value and the average voltage value of the repeatedly charged lithium ion battery, then measuring the lithium ion battery according to the average voltage value, and calculating the error of the maximum voltage value and the average voltage value;
s2, pre-charging the lithium ion battery;
s201, pre-charging the lithium ion battery according to the maximum voltage value of the lithium ion battery, wherein the pre-charging value is 80% of the maximum voltage value, and meanwhile, the pre-charging current is adjusted to be IA；
S202, after the pre-charging is finished, standing the lithium ion battery, and then charging the lithium ion battery;
and S3, rapidly charging the lithium ion battery, connecting the lithium ion battery after standing in series, performing constant voltage charging, and placing the lithium ion battery in an auxiliary device for heat dissipation treatment after charging is finished.
In step S201, IAIs three times I.
In step S202, the standing time was 5 minutes.
In the step S3, the auxiliary device includes a heat dissipation plate 1, the heat dissipation plate 1 is a rectangular plate-shaped structure, a plurality of heat dissipation grooves 2 for heat dissipation are uniformly distributed on the heat dissipation plate 1, a heat dissipation net 4 is installed in the heat dissipation grooves 2, the heat dissipation grooves 2 and the heat dissipation net 4 are connected through buckles, and a plurality of cold air release ports are circumferentially arranged on the side wall of the heat dissipation groove 2;
mounting groove 3 has been seted up at the middle part of heating panel 1, is provided with the condensing engine in the mounting groove 3, and the condensing engine is connected with air conditioning release mouth through the air duct.
Example 3
Referring to fig. 1, in an embodiment of the present invention, a method for fast charging a lithium ion battery includes the following steps:
s1, verifying the maximum value of the polarization voltage of the lithium ion battery to be charged;
s101, taking a lithium ion battery, charging the lithium ion battery by adopting constant current I, and then charging the lithium ion battery to a set value UAAfter the electric quantity in the lithium ion battery is exhausted, repeatedly charging the lithium ion battery for 7 times;
s102, measuring the voltage of the lithium ion battery at intervals of 2 minutes by using a voltmeter, and recording a real-time voltage value UBRecording the voltage value into a voltage database, and making a voltage curve table;
s103, calculating and measuring the maximum voltage value, the minimum voltage value and the average voltage value of the repeatedly charged lithium ion battery, then measuring the lithium ion battery according to the average voltage value, and calculating the error of the maximum voltage value and the average voltage value;
s2, pre-charging the lithium ion battery;
s201, pre-charging the lithium ion battery according to the maximum voltage value of the lithium ion battery, wherein the pre-charging value is 80% of the maximum voltage value, and meanwhile, the pre-charging current is adjusted to be IA；
S202, after the pre-charging is finished, standing the lithium ion battery, and then charging the lithium ion battery;
and S3, rapidly charging the lithium ion battery, connecting the lithium ion battery after standing in series, performing constant voltage charging, and placing the lithium ion battery in an auxiliary device for heat dissipation treatment after charging is finished.
In step S201, IAIs three times I.
In step S202, the standing time was 5 minutes.
In the step S3, the auxiliary device includes a heat dissipation plate 1, the heat dissipation plate 1 is a rectangular plate-shaped structure, a plurality of heat dissipation grooves 2 for heat dissipation are uniformly distributed on the heat dissipation plate 1, a heat dissipation net 4 is installed in the heat dissipation grooves 2, the heat dissipation grooves 2 and the heat dissipation net 4 are connected through buckles, and a plurality of cold air release ports are circumferentially arranged on the side wall of the heat dissipation groove 2;
mounting groove 3 has been seted up at the middle part of heating panel 1, is provided with the condensing engine in the mounting groove 3, and the condensing engine is connected with air conditioning release mouth through the air duct.
Example 4
Referring to fig. 1, in an embodiment of the present invention, a method for fast charging a lithium ion battery includes the following steps:
s1, verifying the maximum value of the polarization voltage of the lithium ion battery to be charged;
s101, taking a lithium ion battery, charging the lithium ion battery by adopting constant current I, and then charging the lithium ion battery to a set value UAAfter the electric quantity in the lithium ion battery is exhausted, repeatedly charging the lithium ion battery for 10 times;
s102, measuring the voltage of the lithium ion battery at intervals of 2 minutes by using a voltmeter, and recording a real-time voltage value UBAnd recording the voltage value into the voltageA database, and a voltage curve table is made;
s103, calculating and measuring the maximum voltage value, the minimum voltage value and the average voltage value of the repeatedly charged lithium ion battery, then measuring the lithium ion battery according to the average voltage value, and calculating the error of the maximum voltage value and the average voltage value;
s2, pre-charging the lithium ion battery;
s201, pre-charging the lithium ion battery according to the maximum voltage value of the lithium ion battery, wherein the pre-charging value is 80% of the maximum voltage value, and meanwhile, the pre-charging current is adjusted to be IA；
S202, after the pre-charging is finished, standing the lithium ion battery, and then charging the lithium ion battery;
and S3, rapidly charging the lithium ion battery, connecting the lithium ion battery after standing in series, performing constant voltage charging, and placing the lithium ion battery in an auxiliary device for heat dissipation treatment after charging is finished.
In step S201, IAIs three times I.
In step S202, the standing time was 5 minutes.
In the step S3, the auxiliary device includes a heat dissipation plate 1, the heat dissipation plate 1 is a rectangular plate-shaped structure, a plurality of heat dissipation grooves 2 for heat dissipation are uniformly distributed on the heat dissipation plate 1, a heat dissipation net 4 is installed in the heat dissipation grooves 2, the heat dissipation grooves 2 and the heat dissipation net 4 are connected through buckles, and a plurality of cold air release ports are circumferentially arranged on the side wall of the heat dissipation groove 2;
mounting groove 3 has been seted up at the middle part of heating panel 1, is provided with the condensing engine in the mounting groove 3, and the condensing engine is connected with air conditioning release mouth through the air duct.
Example 5
Referring to fig. 1, in an embodiment of the present invention, a method for fast charging a lithium ion battery includes the following steps:
s1, verifying the maximum value of the polarization voltage of the lithium ion battery to be charged;
s101, taking a lithium ion battery, charging the lithium ion battery by adopting constant current I, and then charging the lithium ion battery to a set value UAAfter the electric quantity in the lithium ion battery is exhausted, the operation is repeatedIt was charged 12 times;
s102, measuring the voltage of the lithium ion battery at intervals of 2 minutes by using a voltmeter, and recording a real-time voltage value UBRecording the voltage value into a voltage database, and making a voltage curve table;
s103, calculating and measuring the maximum voltage value, the minimum voltage value and the average voltage value of the repeatedly charged lithium ion battery, then measuring the lithium ion battery according to the average voltage value, and calculating the error of the maximum voltage value and the average voltage value;
s2, pre-charging the lithium ion battery;
s201, pre-charging the lithium ion battery according to the maximum voltage value of the lithium ion battery, wherein the pre-charging value is 80% of the maximum voltage value, and meanwhile, the pre-charging current is adjusted to be IA；
S202, after the pre-charging is finished, standing the lithium ion battery, and then charging the lithium ion battery;
and S3, rapidly charging the lithium ion battery, connecting the lithium ion battery after standing in series, performing constant voltage charging, and placing the lithium ion battery in an auxiliary device for heat dissipation treatment after charging is finished.
In step S201, IAIs three times I.
In step S202, the standing time was 5 minutes.
In the step S3, the auxiliary device includes a heat dissipation plate 1, the heat dissipation plate 1 is a rectangular plate-shaped structure, a plurality of heat dissipation grooves 2 for heat dissipation are uniformly distributed on the heat dissipation plate 1, a heat dissipation net 4 is installed in the heat dissipation grooves 2, the heat dissipation grooves 2 and the heat dissipation net 4 are connected through buckles, and a plurality of cold air release ports are circumferentially arranged on the side wall of the heat dissipation groove 2;
mounting groove 3 has been seted up at the middle part of heating panel 1, is provided with the condensing engine in the mounting groove 3, and the condensing engine is connected with air conditioning release mouth through the air duct.
And (3) performance testing:
the examples 1 to 5 and the commercial products were tested, and the charging time and the capacity of the products were measured after the completion of charging, and the results are shown in Table 1.
TABLE 1 Performance test Table
Group of Capacity (%) Charging time (min)
Example 1 97.9 50
Example 2 97.9 52
Example 3 98.1 53
Example 4 98.2 51
Example 5 97.8 50
Commercially available product 95 58
The invention has the beneficial effects that: the embodiment of the invention has the advantages that the charging is rapid, the generation speed of lithium ions in the lithium ion battery is realized by adjusting the charging current, the sum of the generation speed and the running speed of the lithium ions is smaller than the speed of the lithium embedding reaction of the graphite layer, the charging efficiency of the lithium ion battery is further improved, the heat dissipation efficiency of the lithium battery is improved by the aid of the auxiliary device, and the service life of the lithium battery is prolonged.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (9)

1. A quick charging method of a lithium ion battery is characterized by comprising the following steps:
s1, verifying the maximum value of the polarization voltage of the lithium ion battery to be charged;
s101, taking a lithium ion battery, charging the lithium ion battery by adopting constant current I, and then charging the lithium ion battery to a set value UAAfter the electric quantity in the lithium ion battery is exhausted;
s102, measuring the voltage of the lithium ion battery at intervals of 2 minutes by using a voltmeter, and recording a real-time voltage value UBRecording the voltage value into a voltage database, and making a voltage curve table;
s103, calculating and measuring the maximum voltage value, the minimum voltage value and the average voltage value of the repeatedly charged lithium ion battery, then measuring the lithium ion battery according to the average voltage value, and calculating the error of the maximum voltage value and the average voltage value;
s2, pre-charging the lithium ion battery;
s201, pre-charging the lithium ion battery according to the maximum voltage value of the lithium ion battery, and simultaneously adjusting a pre-charging current, wherein the pre-charging current is IA；
S202, after the pre-charging is finished, standing the lithium ion battery, and then charging the lithium ion battery;
and S3, rapidly charging the lithium ion battery, connecting the lithium ion battery after standing in series, performing constant voltage charging, and placing the lithium ion battery in an auxiliary device for heat dissipation treatment after charging is finished.
2. The lithium ion battery quick-charging method according to claim 1, wherein in step S201, IAIs three times I.
3. The lithium ion battery quick-charging method according to claim 2, wherein in step S202, the standing time is 5 minutes.
4. The lithium ion battery quick-charging method according to claim 1, wherein in step S101, the number of times of charging the lithium ion battery is 5 to 15.
5. The lithium ion battery quick charging method according to claim 1, wherein in step S201, the pre-charge value is 80% of the maximum voltage value.
6. The lithium ion battery quick charging method according to any one of claims 1 to 5, wherein in step S3, the auxiliary device comprises a heat dissipation plate (1), a plurality of heat dissipation grooves (2) for heat dissipation are uniformly distributed on the heat dissipation plate (1), a heat dissipation net (4) is installed in each heat dissipation groove (2), and a plurality of cold air release ports are circumferentially arranged on the side wall of each heat dissipation groove (2).
7. The lithium ion battery quick charging method according to claim 6, characterized in that the heat dissipation plate (1) has a rectangular plate-shaped structure.
8. The lithium ion battery quick charging method according to claim 6, characterized in that the heat sink groove (2) and the heat sink mesh (4) are connected by a snap connection.
9. The lithium ion battery quick charging method according to claim 7, characterized in that the middle part of the heat dissipation plate (1) is provided with an installation groove (3), a condenser is arranged in the installation groove (3), and the condenser is connected with a cold air release port through an air duct.
CN202010940664.1A 2020-09-09 2020-09-09 Quick charging method for lithium ion battery Withdrawn CN112216887A (en)

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CN202010940664.1A CN112216887A (en) 2020-09-09 2020-09-09 Quick charging method for lithium ion battery

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