CN109546235A - Control method, device, electronic equipment and the storage medium of lithium battery - Google Patents
Control method, device, electronic equipment and the storage medium of lithium battery Download PDFInfo
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- CN109546235A CN109546235A CN201811173406.4A CN201811173406A CN109546235A CN 109546235 A CN109546235 A CN 109546235A CN 201811173406 A CN201811173406 A CN 201811173406A CN 109546235 A CN109546235 A CN 109546235A
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- lithium battery
- temperature
- preset threshold
- battery
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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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- 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
Abstract
Control method, device, electronic equipment and the storage medium of a kind of lithium battery are provided in the present invention, comprising: temperature when detection lithium battery work, and judge whether the temperature reaches the first preset threshold or the second preset threshold；When the temperature reaches first preset threshold and not up to second preset threshold, the major loop of the lithium battery is disconnected so that the lithium battery stops working, and continues to the temperature lower than first preset threshold；When the temperature reaches second preset threshold, disconnecting circuit is so that the lithium battery stops working.When the present invention reaches preset different threshold values by the temperature of detection lithium battery work, so that lithium battery is stopped working using corresponding mode disconnecting circuit, to protect lithium battery to cause thermal runaway, avoid the defect that lithium battery is unable to control operating temperature and leads to thermal runaway.
Description
Technical field
The present invention relates to technical field of lithium batteries, in particular to a kind of control method of lithium battery, device, electronic equipment and
Storage medium.
Background technique
With the development of modern science and technology, the electronic products such as laptop, smart phone are widely used, and lithium battery is made
Have the characteristics that recycling rate is high, low from power consumption with it for a kind of green power supply, is widely used in electronic product.Lithium
Battery can generate heat at work, when the temperature between the temperature or battery core that lithium battery reaches excessively high is unbalanced and difference very
When big, the aging of lithium battery can be accelerated, influence the service life of lithium battery, even result in the battery core thermal runaway and electricity of lithium battery
Core explosion, causes great security risk.And the thermal runaway of lithium battery is to cause lithium battery that the dangerous generation such as explosion, burning occurs
Basic reason.
Summary of the invention
The main object of the present invention is the control method for providing a kind of lithium battery, device, electronic equipment and storage medium, is kept away
The defect that lithium battery is unable to control operating temperature and leads to thermal runaway is exempted from.
To achieve the above object, the present invention provides a kind of control methods of lithium battery, comprising the following steps:
Temperature when lithium battery work is detected, and judges whether the temperature reaches the first preset threshold or the second default threshold
Value；Wherein, first preset threshold is less than second preset threshold；
When the temperature reaches first preset threshold and not up to second preset threshold, the lithium electricity is disconnected
The major loop in pond is so that the lithium battery stops working, and continues to the temperature lower than first preset threshold；
When the temperature reaches second preset threshold, disconnecting circuit is so that the lithium battery stops working.
Further, the temperature when detection lithium battery work, and judge whether the temperature reaches the first default threshold
Before the step of value or the second preset threshold, comprising:
Detect the respective temperature of multiple battery cores at work in the lithium battery；
Compare the respective temperature, obtains highest first temperature of temperature value；Wherein, first temperature is used to be used as institute
State temperature when lithium battery work.
Further, the temperature when detection lithium battery work, and judge whether the temperature reaches the first default threshold
In the step of value or the second preset threshold, comprising:
The second temperature of the internal circuit of the lithium battery at work is detected, temperature when as lithium battery work
Degree；
Judge whether the second temperature reaches first preset threshold or second preset threshold.
Further, it is described when the temperature reaches first preset threshold and not up to described second preset threshold
When, the major loop of the lithium battery is disconnected so that the lithium battery stops working, and continues to the temperature lower than described first
The step of preset threshold, comprising:
When the temperature reaches first preset threshold and not up to the second preset threshold, the master for closing lithium battery is returned
Field-effect tube in road；
The temperature for persistently detecting the lithium battery, when the temperature for recognizing the lithium battery is much smaller than the described first default threshold
When value, the field-effect tube in the major loop of the lithium battery is connected to be connected to the major loop of the lithium battery again.
Further, described when the temperature reaches second preset threshold, disconnecting circuit is so that lithium battery stops
In the step of work, comprising:
When recognizing the temperature and reaching second preset threshold, the insurance in the major loop of the lithium battery is disconnected
Silk is so that the lithium battery stops working.
Further, the temperature when detection lithium battery work, and judge whether the temperature reaches the first default threshold
Before the step of value or the second preset threshold, comprising:
The respective voltage of multiple battery cores at work in the lithium battery is detected, and therefrom obtains maximum voltage value；
It controls battery core corresponding to the maximum voltage value to stop working, until the voltage value of other all battery cores reaches
The maximum voltage value；
When the voltage value of all battery cores reaches the maximum voltage value, obtains the temperature of all battery cores and compared
Compared with therefrom obtaining maximum temperature value；Wherein, temperature when the maximum temperature value is used for as lithium battery work.
Further, battery core corresponding to the control maximum voltage value stops working, until other all electricity
After the step of voltage value of core reaches the maximum voltage value, comprising:
Voltage value when identifying other all battery cores work；
When voltage value when other battery cores work reaches the maximum voltage value, controls corresponding battery core and stop
Work；
When the voltage value of all battery cores reaches the maximum voltage value, then all battery core startings are controlled
Work.
The present invention also provides a kind of control devices of lithium battery, comprising:
Detection unit for detecting temperature when lithium battery work, and judges whether the temperature reaches the first default threshold
Value or the second preset threshold；Wherein, first preset threshold is less than second preset threshold；
First control unit, for reaching first preset threshold and the not up to described second default threshold when the temperature
When value, the major loop of the lithium battery is disconnected so that the lithium battery stops working, and continues to the temperature lower than described the
One preset threshold；
Second control unit, for when the temperature reaches second preset threshold, disconnecting circuit to be so that the lithium
Battery stops working.
The present invention also provides a kind of electronic equipment, including memory and processor, computer is stored in the memory
The step of program, the processor realizes any of the above-described the method when executing the computer program.
The present invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, the computer journey
The step of method described in any of the above embodiments is realized when sequence is executed by processor.
Control method, device, electronic equipment and the storage medium of lithium battery provided in the present invention have below beneficial to effect
Fruit:
Control method, device, electronic equipment and the storage medium of lithium battery provided in the present invention, by detecting lithium battery
Temperature when work makes lithium battery stop work when reaching preset different preset thresholds, using corresponding mode disconnecting circuit
Make, to protect lithium battery to cause thermal runaway, avoids the defect that lithium battery is unable to control operating temperature and leads to thermal runaway.
Detailed description of the invention
Fig. 1 is the control method step schematic diagram of lithium battery in one embodiment of the invention；
Fig. 2 is the control device structural block diagram of lithium battery in one embodiment of the invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, not
For limiting the present invention.
Referring to Fig.1, a kind of control method of lithium battery is provided in one embodiment of the invention, comprising the following steps:
Step S1, temperature when detection lithium battery work, and judge whether the temperature reaches the first preset threshold or the
Two preset thresholds；Wherein, first preset threshold is less than second preset threshold.
In the present embodiment, PTC (thermistor, self- recoverage temperature controller etc.), IC (integrated circuit, semiconductor are connected
Component products), temperature sensor, the control devices such as BQ77905 chip are in main circuit.Wherein, BQ77905 is the electricity of low-power consumption
Pond group protector, realizes a series of voltage, electric current and temperature protection function, controls without microcontroller, when discharging and charging
With independent overheat and under-voltage temperature threshold, it is capable of providing higher flexibility；IC is voltameter IC.Pass through voltameter IC etc.
Control device detects the temperature of lithium battery in lithium battery work, and when detecting lithium battery when the temperature is excessively high, control is disconnected
Major loop is to stop lithium battery work.When lithium battery is in charging, electric discharge or overcurrent, whether the temperature for detecting lithium battery reaches
To the first preset threshold or the second preset threshold.When lithium battery is in charging, electric discharge or when overcurrent, corresponding to it is first pre-
If threshold value and the second preset threshold are all different.Such as: when lithium battery charging, the first preset threshold is 40 degree, and second is default
Threshold value is 60 degree；When lithium battery electric discharge, the first preset threshold is 30 degree, and the second preset threshold is 40 degree；When lithium battery overcurrent
When, the first preset threshold is 20 degree, and the second preset threshold is 30 degree.
Step S2 is disconnected when the temperature reaches first preset threshold and not up to second preset threshold
The major loop of the lithium battery is so that the lithium battery stops working, and continues to the temperature lower than the described first default threshold
Value；When the temperature reaches second preset threshold, disconnecting circuit is so that the lithium battery stops working.
In the present embodiment, when lithium battery is in charging, electric discharge or overcurrent, and detect that the temperature value of lithium battery reaches
First preset threshold and when less than the second preset threshold, control device controls the electric current transmission that major loop disconnects major loop, makes lithium
Battery stops charging, electric discharge or overcurrent until the temperature value of lithium battery is less than the first preset threshold, can restore major loop
Electric current is transmitted and is provided the power supply of entire circuit.Wherein, the operating temperature of lithium battery is lithium battery lower than the first preset threshold
Operating temperature be lower than the first preset threshold specified numerical value, the connection of major loop can be restored.When charging, electric discharge or overcurrent
The specified numerical value can be identical or inconsistent, can be configured according to specific circumstances.Such as: when lithium battery charge,
Temperature be lower than the first preset threshold, and differ 30 degree when, the connection of major loop can be restored；When lithium battery discharges, temperature is lower than
First preset threshold, and differ 25 degree when, the connection of major loop can be restored；When lithium battery overcurrent, temperature is default lower than first
Threshold value, and differ 20 degree when, the connection of major loop can be restored.
In the present embodiment, lithium battery is in charging, electric discharge or overcurrent, and control device controls the temperature for detecting lithium battery
Degree steeply rises in a short time, has reached the second preset threshold, temperature is excessively high, and emergent management measure need be taken to prevent lithium
Battery equal perils since thermal runaway sets off an explosion, thus it is made by the main circuit in a manner of irrecoverable in disconnecting circuit
Main circuit is blocked to provide power supply to entire circuit, so that lithium battery cannot restart work, entire circuit can not work again,
To avoid the constant temperature of lithium battery from steeply rising, so that the inside of lithium battery can decline its temperature in certain environment.
In one embodiment, temperature when above-mentioned detection lithium battery works, and judge whether the temperature reaches first
Before the step S1 of preset threshold or the second preset threshold, comprising:
Step S1a detects the respective temperature of multiple battery cores at work in the lithium battery；
Step S1b, the respective temperature obtain highest first temperature of temperature value；Wherein, first temperature is used
Temperature when as lithium battery work.
In the present embodiment, multiple battery cores are equipped in lithium battery, since the gap between each battery core, quality characteristic are different
Etc. reasons, the heat that when charging of each battery core, electric discharge or overcurrent generates is different.Charging, electric discharge or mistake are in lithium battery
When stream, the control devices such as voltameter IC, PTC detect the corresponding temperature value of each battery core, and the corresponding temperature value of comparative analysis battery core obtains
Temperature when taking highest first temperature of temperature value, and first temperature being worked as entire lithium battery, to carry out to lithium electricity
Temperature when pond works carries out detection judgement.
In one embodiment, temperature when above-mentioned detection lithium battery works, and judge whether the temperature reaches first
In the step S1 of preset threshold or the second preset threshold, comprising:
Step S1c detects the second temperature of the internal circuit of the lithium battery at work, works as the lithium battery
When temperature；
Step S1d, judges whether the second temperature reaches first preset threshold or second preset threshold.
In the present embodiment, since the fuel factor of electric current, electrochemical reaction of circuit etc. can generate heat, thus work as lithium battery
When in charging, electric discharge or overcurrent, corresponding first preset threshold and the second preset threshold are obtained, the inside of lithium battery is detected
The temperature of circuit, i.e. second temperature, compare whether second temperature reaches corresponding first preset threshold or the second preset threshold.
In one embodiment, above-mentioned when that the temperature reaches first preset threshold is not up to described second default
When threshold value, the major loop of the lithium battery is disconnected so that the lithium battery stops working, and continues to the temperature lower than described
In the step S2 of first preset threshold, comprising:
Step S2a, when the temperature reaches first preset threshold and not up to the second preset threshold, described in closing
Field-effect tube in the major loop of lithium battery；
Step S2b persistently detects the temperature of the lithium battery, when the temperature for recognizing the lithium battery is less than described first
When preset threshold, the field-effect tube in the major loop of the lithium battery is connected to be connected to the major loop of the lithium battery again.
In the present embodiment, when lithium battery is in the working condition of charging, the temperature of lithium battery is detected, is worked as if recognizing
The temperature of the lithium battery of preceding detection reaches the first preset threshold and not up to the second preset threshold, then the control devices such as voltameter IC
The metal-oxide-semiconductor (field-effect tube) in major loop is closed in control, is disconnected major loop and is supplied the power supply of entire circuit, so that lithium battery stops
It only charges, during lithium battery stops charging, the temperature of lithium battery is gradually reduced, when the temperature for detecting lithium battery is less than
When the first preset threshold, then metal-oxide-semiconductor (the field-effect in major loop is connected in the control devices such as voltameter IC control major loop again
Pipe), restore major loop and the power supply of entire circuit is supplied, so that lithium battery continues to charge.When lithium battery is in the work of electric discharge
When state, the temperature of lithium battery is detected, if the temperature for recognizing the lithium battery of current detection reaches the first preset threshold and do not reach
To the second preset threshold, then the metal-oxide-semiconductor (field-effect tube) in major loop is closed in control device control, disconnects major loop to entire electricity
The power supply on road is supplied so that lithium battery stops electric discharge, during lithium battery stops discharging, the temperature of lithium battery gradually under
Drop, when detecting the temperature of lithium battery much smaller than the first preset threshold, then in control device control major loop conducting major loop
Metal-oxide-semiconductor (field-effect tube), restore major loop and the power supply of entire circuit supplied, so that lithium battery continues to discharge.Wherein, lithium electricity
The temperature in pond is lower than the specified numerical value that the first preset threshold is lower than the operating temperature that the first preset threshold is lithium battery, can be extensive
The connection of multiple major loop.The specified numerical value being somebody's turn to do when charging, electric discharge or overcurrent can be identical or inconsistent, can be according to tool
The case where body, is configured.
In one embodiment, above-mentioned when the temperature reaches second preset threshold, disconnecting circuit is so that lithium is electric
In the step S2 that pond stops working, comprising:
Step S2c disconnects the major loop of the lithium battery when recognizing the temperature and reaching second preset threshold
In fuse so that the lithium battery stops working.
In the present embodiment, when lithium battery is in charge or discharge or overcurrent, the temperature of lithium battery is detected, if detecting lithium
The temperature of battery steeply rises in a short time, and temperature is excessively high, and more than certain temperature limiting, i.e. lithium battery temperature is equal to or greatly
In the second preset threshold, then control device controls major loop, disconnects the fuse in major loop.After being disconnected due to fuse not
It can restore and work on, and fuse is connected to major loop, thus block major loop to entire circuit after open fuse
Power supply is provided, lithium battery stops working, while lithium battery cannot work on.
In another embodiment, temperature when above-mentioned detection lithium battery works, and judge whether the temperature reaches the
Before the step S1 of one preset threshold or the second preset threshold, comprising:
Step S11a detects the respective voltage of multiple battery cores at work in the lithium battery, and therefrom obtains maximum
Voltage value；
Step S11b controls battery core corresponding to the maximum voltage value and stops working, until other all battery cores
Voltage value reaches the maximum voltage value；
Step S11c obtains the temperature of all battery cores when the voltage value of all battery cores reaches the maximum voltage value
It spends and is compared, therefrom obtain maximum temperature value；Wherein, the maximum temperature value is used to work as the lithium battery
When temperature.
In the present embodiment, when lithium battery connection power supply is started to work, it is corresponding respectively that multiple battery cores in lithium battery are detected
Voltage obtains respective voltage, analyzes the voltage of each battery core more obtained, therefrom obtains maximum voltage value, voltameter
The control devices control circuit such as IC makes the corresponding battery core of maximum voltage value stop charging, until the voltage value of other battery cores and its
Maximum voltage value is identical.Until the operating voltage value of all battery cores reaches identical, as maximum voltage value when, detect this
When each battery core temperature value, and be compared, therefrom obtain maximum temperature value, using the maximum temperature value as entire
Temperature when lithium battery works, then temperature detection when working lithium battery, and judge whether to reach default threshold value.It is supervising
It realizes that the passive type of lithium battery is balanced while controlling the temperature of lithium battery, enables lithium battery each electricity when reaching charging voltage
Core is filled with electricity, has full electricity, shortens the charging time of battery pack, and active volume is improved and increased with efficiency
Function.
In another embodiment, battery core corresponding to the control maximum voltage value stops working, Zhi Daoqi
The voltage value of its all battery core reaches after the step S11b of the maximum voltage value, comprising:
Step S111a, voltage value when identifying other all battery cores work；
Step S111b, when the voltage value when other battery cores work reaches the maximum voltage value, control is corresponded to
Battery core stop working；
Step S111c is then controlled described all when the voltage value of all battery cores reaches the maximum voltage value
Battery core start work.
In the present embodiment, when lithium battery connection power supply is started to work, it is corresponding each that multiple battery cores in lithium battery are detected
From voltage, the voltage of each battery core more obtained is analyzed, therefrom obtains maximum voltage value, control device control circuit makes
After the corresponding battery core of maximum voltage value stops charging, other battery cores continue to charge, until the corresponding work electricity of other battery cores
Pressure value is equal to maximum voltage value, and the battery core that corresponding operating voltage value first reaches maximum voltage value first stops charging, wait until
When the operating voltage value of all battery cores is identical with maximum voltage value, all battery cores start to recharge together.
Referring to Fig. 2, a kind of control device of lithium battery is additionally provided in one embodiment of the invention, realizes any one of the above
The control method of lithium battery, comprising:
Detection unit 10, temperature when detection lithium battery works, and judge whether the temperature reaches the first preset threshold
Or second preset threshold；Wherein, first preset threshold is less than second preset threshold.
In the present embodiment, PTC (thermistor, self- recoverage temperature controller etc.), IC (integrated circuit, semiconductor are connected
Component products), temperature sensor, the control devices such as BQ77905 chip are in main circuit.Wherein, BQ77905 is the electricity of low-power consumption
Pond group protector, realizes a series of voltage, electric current and temperature protection function, controls without microcontroller, when discharging and charging
With independent overheat and under-voltage temperature threshold, it is capable of providing higher flexibility；IC is voltameter IC.Pass through voltameter IC etc.
Control device detects the temperature of lithium battery in lithium battery work, and when detecting lithium battery when the temperature is excessively high, control is disconnected
Major loop is to stop lithium battery work.When lithium battery is in the working condition of charging, electric discharge or overcurrent, the control such as voltameter IC
Whether the temperature of units test lithium battery processed reaches the first preset threshold or the second preset threshold.It charges, put when lithium battery is in
Electricity or overcurrent working condition when, corresponding to the first preset threshold and the second preset threshold be all different.Such as: work as lithium
When battery charges, the first preset threshold is 40 degree, and the second preset threshold is 60 degree；When lithium battery electric discharge, the first preset threshold
It is 30 degree, the second preset threshold is 40 degree；When lithium battery overcurrent, the first preset threshold is 20 degree, and the second preset threshold is 30
Degree.
First control unit 20, it is not up to described second default for reaching first preset threshold when the temperature
When threshold value, the major loop of the lithium battery is disconnected so that the lithium battery stops working, and continues to the temperature lower than described
First preset threshold.
In the present embodiment, when working condition of the lithium battery in charging, electric discharge or overcurrent, and lithium battery is detected
Temperature value reaches the first preset threshold and when less than the second preset threshold, and control device controls the electric current that major loop disconnects major loop
Transmission makes lithium battery stop charging, electric discharge or overcurrent until the temperature value of lithium battery is less than the first preset threshold, can restore
The electric current of major loop is transmitted and is provided the power supply of entire circuit.Wherein, the operating temperature of lithium battery is lower than the first preset threshold
It is lower than the specified numerical value of the first preset threshold for the operating temperature of lithium battery, the connection of major loop can be restored.Charging, electric discharge or
Specified numerical value when person's overcurrent can be identical or inconsistent, can be configured according to specific circumstances.Such as: when lithium electricity
Pond charging, temperature be lower than the first preset threshold, and differ 30 degree when, the connection of major loop can be restored；When lithium battery electric discharge, temperature
When spending and be lower than the first preset threshold, and differing 25 degree, the connection of major loop can be restored；When lithium battery overcurrent, temperature is lower than the
One preset threshold, and differ 20 degree when, the connection of major loop can be restored.
Second control unit 30, for when the temperature reaches second preset threshold, disconnecting circuit to be so that described
Lithium battery stops working.
In the present embodiment, lithium battery is in charging, electric discharge or overcurrent, and control device controls the temperature for detecting lithium battery
Degree steeply rises in a short time, has reached the second preset threshold, temperature is excessively high, and emergent management measure need be taken to prevent lithium
Battery equal perils since thermal runaway sets off an explosion, thus it is made by the main circuit in a manner of irrecoverable in disconnecting circuit
Main circuit is blocked to provide power supply to entire circuit, so that lithium battery cannot restart work, entire circuit can not work again,
To avoid the constant temperature of lithium battery from steeply rising, so that the inside of lithium battery can decline its temperature in certain environment.
A kind of electronic equipment is also provided in the embodiment of the present invention.The electronic equipment includes the processing connected by system bus
Device and memory.Wherein, the processor of the Computer Design is for providing calculating and control ability.The memory of the electronic equipment
Including non-volatile memory medium, built-in storage.The non-volatile memory medium is stored with operating system, computer program sum number
According to library.The built-in storage provides environment for the operation of operating system and computer program in non-volatile memory medium.The electricity
The control method of any one of the above lithium battery is realized when subprogram is executed by processor.
Above-mentioned processor executes the step of control method of above-mentioned lithium battery:
Temperature when lithium battery work is detected, and judges whether the temperature reaches the first preset threshold or the second default threshold
Value；Wherein, first preset threshold is less than second preset threshold；
When the temperature reaches first preset threshold and not up to second preset threshold, the lithium electricity is disconnected
The major loop in pond is so that the lithium battery stops working, and continues to the temperature lower than first preset threshold；
When the temperature reaches second preset threshold, disconnecting circuit is so that the lithium battery stops working.
One embodiment of the invention also provides a kind of computer readable storage medium, is stored thereon with computer program, calculates
Machine program realizes the control method of any one of the above lithium battery when being executed by processor, specifically:
Temperature when lithium battery work is detected, and judges whether the temperature reaches the first preset threshold or the second default threshold
Value；Wherein, first preset threshold is less than second preset threshold；
When the temperature reaches first preset threshold and not up to second preset threshold, the lithium electricity is disconnected
The major loop in pond is so that the lithium battery stops working, and continues to the temperature lower than first preset threshold；
When the temperature reaches second preset threshold, disconnecting circuit is so that the lithium battery stops working.
In conclusion being situated between for the control method of the lithium battery provided in the embodiment of the present invention, device, electronic equipment and storage
Matter, temperature when by detection lithium battery work disconnect electricity using corresponding mode when reaching preset different preset thresholds
Road makes lithium battery stop working, and to protect lithium battery to cause thermal runaway, avoids lithium battery and is unable to control operating temperature and causes
The defect of thermal runaway.Control method, device, electronic equipment and the storage medium of lithium battery provided in an embodiment of the present invention, can have
The temperature of effect monitoring lithium battery, extends the service life of lithium battery, used control device is simple to operation, battery pack
Charge efficiency is high, can electricity capacity increase.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the computer program can store and a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein,
Any reference used in provided by the present invention and embodiment to memory, storage, database or other media,
Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM can by diversified forms
, such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double speed are according to rate SDRAM (SSRSDRAM), increasing
Strong type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, device, article or the method that include a series of elements not only include those elements, and
And further include the other elements being not explicitly listed, or further include for this process, device, article or method institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, device of element, article or method.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (10)
1. a kind of control method of lithium battery, which comprises the following steps:
Temperature when lithium battery work is detected, and judges whether the temperature reaches the first preset threshold or the second preset threshold；
Wherein, first preset threshold is less than second preset threshold；
When the temperature reaches first preset threshold and not up to second preset threshold, the lithium battery is disconnected
Major loop is so that the lithium battery stops working, and continues to the temperature lower than first preset threshold；
When the temperature reaches second preset threshold, disconnecting circuit is so that the lithium battery stops working.
2. the control method of lithium battery according to claim 1, which is characterized in that the temperature when detection lithium battery work
Degree, and before judging the step of whether temperature reaches the first preset threshold or the second preset threshold, comprising:
Detect the respective temperature of multiple battery cores at work in the lithium battery；
Compare the respective temperature, obtains highest first temperature of temperature value；Wherein, first temperature is used to be used as the lithium
Temperature when battery works.
3. the control method of lithium battery according to claim 1, which is characterized in that the temperature when detection lithium battery work
Degree, and judge in the step of whether temperature reaches the first preset threshold or the second preset threshold, comprising:
The second temperature of the internal circuit of the lithium battery at work is detected, temperature when as lithium battery work；
Judge whether the second temperature reaches first preset threshold or second preset threshold.
4. the control method of lithium battery according to claim 1, which is characterized in that described when the temperature reaches described the
One preset threshold and not up to second preset threshold when, disconnect the major loop of the lithium battery so that the lithium battery stop
Work, and continue to the step of temperature is lower than first preset threshold, comprising:
When the temperature reaches first preset threshold and not up to the second preset threshold, the master for closing the lithium battery is returned
Field-effect tube in road；
The temperature for persistently detecting the lithium battery, when the temperature for recognizing the lithium battery is less than first preset threshold,
The field-effect tube in the major loop of the lithium battery is connected to be connected to the major loop of the lithium battery again.
5. the control method of lithium battery according to claim 1, which is characterized in that described when the temperature reaches described the
When two preset thresholds, disconnecting circuit is so that in the step of lithium battery stops working, comprising:
When the temperature reaches second preset threshold, the fuse in the major loop of the lithium battery is disconnected so that described
Lithium battery stops working.
6. the control method of lithium battery according to claim 1, which is characterized in that the temperature when detection lithium battery work
Degree, and before judging the step of whether temperature reaches the first preset threshold or the second preset threshold, comprising:
The respective voltage of multiple battery cores at work in the lithium battery is detected, and therefrom obtains maximum voltage value；
It controls battery core corresponding to the maximum voltage value to stop working, until the voltage value of other all battery cores reaches described
Maximum voltage value；
When the voltage value of all battery cores reaches the maximum voltage value, obtains the temperature of all battery cores and is compared,
Therefrom obtain maximum temperature value；Wherein, temperature when the maximum temperature value is used for as lithium battery work.
7. the control method of lithium battery according to claim 6, which is characterized in that the control maximum voltage value
Corresponding battery core stops working, until the step of voltage value of other all battery cores reaches the maximum voltage value,
Include:
Identify voltage value when other all battery cores work；
When voltage value when other battery cores work reaches the maximum voltage value, controls corresponding battery core and stop work
Make；
When the voltage value of all battery cores reaches the maximum voltage value, then all battery core starting works are controlled
Make.
8. a kind of control device of lithium battery characterized by comprising
Detection unit, for detect lithium battery work when temperature, and judge the temperature whether reach the first preset threshold or
Second preset threshold；Wherein, first preset threshold is less than second preset threshold；
First control unit, for reaching first preset threshold and not up to described second preset threshold when the temperature
When, the major loop of the lithium battery is disconnected so that the lithium battery stops working, and continues to the temperature lower than described first
Preset threshold；
Second control unit, for when the temperature reaches two preset threshold, disconnecting circuit to be so that the lithium battery stops
Only work.
9. a kind of electronic equipment, including memory and processor, it is stored with computer program in the memory, feature exists
In the step of processor realizes any one of claims 1 to 7 the method when executing the computer program.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of method described in any one of claims 1 to 7 is realized when being executed by processor.
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| CN201811173406.4A CN109546235A (en) | 2018-10-09 | 2018-10-09 | Control method, device, electronic equipment and the storage medium of lithium battery |
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