CN103701168B - The charging management method and charging management system of lithium battery - Google Patents
The charging management method and charging management system of lithium battery Download PDFInfo
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- CN103701168B CN103701168B CN201310687596.2A CN201310687596A CN103701168B CN 103701168 B CN103701168 B CN 103701168B CN 201310687596 A CN201310687596 A CN 201310687596A CN 103701168 B CN103701168 B CN 103701168B
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Abstract
The present invention discloses the charging management method and charging management system of a kind of lithium battery, improve existing charge mode, the charging of battery is controlled by changing the minimum charging current threshold mode in battery charging management chip, realization need not take out battery, just can open and close battery charging function with software, make battery can be with charge and discharge electricity as much as possible, so as to improve the life-span of Notebook Battery under finite number of time.
Description
Technical field
It is more particularly to a kind of to be applied to electricity the present invention relates to a kind of charging management method of lithium battery and charging management system
The charging management method and charging management system of the lithium battery of sub- digital product.
Background technology
Many electronic digital products are required for using lithium battery, particularly notebook computer and all substantially use lithium electricity
Pond, its lithium battery is typically all dismountable.During each charging and plug of battery, larger voltage can be all produced,
Interface end often produces spark, is very easy to bring damage to battery or notebook mainboard at the moment.Ordinary circumstance
After lower notebook use time length, frequent plug battery, the problem of all occurring charging the battery, while may
Other components of notebook mainboard are influenceed, the service life of other components of lithium battery and notebook is all substantially reduced.
But, not plug battery can not only waste power supply, and in the case where there is external alternating current, how much electricity all can
Automatically it is Notebook Battery charging.The life-span of Notebook Battery is calculated according to the discharge and recharge number of times of Notebook Battery, probably
It is 500 times, that is, use time is 2 years or so.If not pulling out battery, not only can for a long time in the case of external alternating current
The endurance of battery is influenceed, the serious Notebook Battery that also results in is scrapped, and the service life of lithium battery is dropped significantly
It is low.
Notebook computer is during starting to charge up, and charging current substantially constant, the voltage of battery is raised slowly, reaches
After one point voltage, constant voltage is kept to charge afterwards, the charging of this section is referred to as constant-voltage charge.Now, charging current is then
It is slowly to decline.When the threshold value of low to one setting of charging current, rechargeable battery is then automatically stopped charging.Here it is set
Threshold value, each manufacturer makes by oneself.
Notebook computer typically all carries battery charging management chip with lithium ion battery（Gauge IC）And charge control
Chip, battery charging management chip contains battery capacity buffer, temperature buffer, battery identification（ID）Buffer, battery
State buffer, lithium cell charging state buffer, electric discharge count register, the value in these buffers can be because use
Time or improper use and produce change, cause battery to be not fully filled, or use time such as shortens at the situation.And in these buffers
Value is available with special mode to change, by changing the value of battery capacity buffer and battery status buffer,
The value of mistake or error in script buffer is corrected, the charging interval and capacitance for enabling battery recover normal.
The content of the invention
In consideration of it, being necessary to provide a kind of charging management method and charging valve of the lithium battery that can extend service life of lithium battery
Reason system.
A kind of charging management method of lithium battery, comprises the following steps：
Battery charging management chip detects the current charging current of lithium battery；
Battery charging management chip judges whether the current charging current is less than the charging current threshold value of setting, if so,
Then stop, to the lithium cell charging, otherwise keeping charging；
The step of also including changing the charging current threshold value：
The charge management module run under operating system receives charging controlling command, and according to the charging controlling command
The corresponding modification instruction of generation；
The controller that the modification instruction is connected with battery charging management chip communication is obtained, and the controller is according to institute
State the charging current threshold value of battery charging management chip described in modification instruction modification.
In one of the embodiments, to prestore lithium battery accessible in charging process for the charge management module
The minimum charging current threshold value that maximum charging current threshold value and judgement lithium battery are full of.
In one of the embodiments, the charging controlling command charges to stop charging or recovery；When the charging control
System order is stops during charging, and the controller is changed the charging current threshold value of the battery charging management chip and is more than for one
The preset value of the maximum charging current threshold value；When the charging controlling command is recovers charging, the controller changes institute
It is a preset value for being equal to the minimum charging current threshold value to state the charging current threshold value of battery charging management chip.
In one of the embodiments, the charging controlling command charges for preparatory condition, when the charging controlling command
When being charged for preparatory condition, the controller changes the charging current threshold value of the battery charging management chip for one between institute
State the preset value of maximum charging current threshold value and the minimum charging current threshold value.
In one of the embodiments, the charging controlling command is the charging that imposes a condition, when the charging controlling command
When being charged to impose a condition, the controller changes the charging current threshold value of the battery charging management chip for one by described
The setting value that the charge management module run under operating system is received, the setting value is between the maximum charging current threshold
Between value and the minimum charging current threshold value.
In one of the embodiments, the controller is the central processing unit of computer system, and the modification instruction is
Call default threshold modifying program in the basic input output system of computer system.
In one of the embodiments, methods described can be applied on electronic digital product, the electronic digital product
Including notebook computer, tablet personal computer, palm PC.
A kind of charging management system of lithium battery, for the charging process to the lithium battery including battery charging management chip
It is managed, the battery charging management chip can judge whether current charging current is less than the charging current threshold value of setting, if
It is then to stop, to the lithium cell charging, otherwise keeping charging.
The charging management system includes the operating system of hardware system and the hardware system with controller, described
Controller is connected with the battery charging management chip communication, the operating system charge management module.
The charge management module is used to receive charging controlling command, and is generated accordingly according to the charging controlling command
Modification instruction.
The controller is used to obtain the modification instruction and the battery charging management according to the modification instruction modification
The charging current threshold value of chip.
In one of the embodiments, to prestore lithium battery accessible in charging process for the charge management module
The minimum charging current threshold value that maximum charging current threshold value and judgement lithium battery are full of.
In one of the embodiments, the charging controlling command charges to stop charging or recovery；When the charging control
System order is stops during charging, and the controller is changed the charging current threshold value of the battery charging management chip and is more than for one
The preset value of the maximum charging current threshold value；When the charging controlling command is recovers charging, the controller changes institute
It is a preset value for being equal to the minimum charging current threshold value to state the charging current threshold value of battery charging management chip.
In one of the embodiments, the charging controlling command charges for preparatory condition, when the charging controlling command
When being charged for preparatory condition, the controller changes the charging current threshold value of the battery charging management chip for one between institute
State the preset value of maximum charging current threshold value and the minimum charging current threshold value.
The charging management method and charging management system of above-mentioned lithium battery, change the charging electricity of battery charging management chip
Threshold value is flowed, makes charging current threshold value into the numerical value for being more than maximum charging current threshold value, due to actual charge current value not
May be more than maximum charging current threshold value, and charging current be less than minimum charging current threshold value when lithium battery just stop charging,
So making charging current threshold value into the numerical value for being more than maximum charging current threshold value once user, when notebook computer does not have
Dismounting battery and by power line with it is external exchange electrical connection when, notebook computer be in which charged state all can at once
Stop charging.In the case where having exterior power supply without notebook its cells, this method both without dismantling battery, was also kept away
Exempt from the meaningless automatic charging of Notebook Battery, greatly improve the service life of battery.
Brief description of the drawings
Fig. 1 is the flow chart of charging management method one embodiment of lithium battery of the present invention；
Fig. 2 is the schematic diagram of charging management system one embodiment of lithium battery of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment to the present invention is described in detail.
The present invention can be applied on the battery management software of the products such as notebook computer, tablet personal computer, palm PC, led to
Cross the basic input output system with mainboard（BIOS）Parameter is mutually passed and achieved that, and battery management software and BIOS parameter are mutual
Chuan Zhixu the said goods manufacturer requires that mainboard producer provides relevant information and service.Or the said goods manufacturer sheet
Body possesses motherboard design manufacturing capacity, thus battery management software and BIOS can be made to realize that parameter is mutually passed well, so as to reach
To the charging current threshold information in operation system interface being achievable modification battery charging management chip.Fig. 1 is lithium of the present invention
The flow chart of charging management method one embodiment of battery.
A kind of charging management method of lithium battery, comprises the following steps：
Step S100：Change charging current threshold value.
The charge management module run under operating system receives charging controlling command, and is generated according to charging controlling command
Corresponding modification instruction；The controller acquisition that modification instruction be connected with battery charging management chip communication, controller is according to repairing
Change the charging current threshold value of instruction modification battery charging management chip.Charge management module provides the user a window interface,
Interface includes " recovering charging " and " stopping charging " button, and user's click associated button charge management module just generates correlation and repaiied
Change instruction, the mainboard BIOS being connected with battery charging management chip communication gets related amendments instruction, then refers to according to modification
The charging current threshold value of order modification battery charging management chip.
Step S120：Battery charging management chip detects the current charging current of lithium battery.
Step S140：Battery charging management chip judges whether current charging current is less than the charging current threshold value of setting.
If so, then arriving step S160：Stop to lithium cell charging.If it is not, then arriving step S180：Keep charging.The charging current of setting
Usually lithium battery is close to charging current value during chargeable amount maximum, such as 80mA.
In the present embodiment, controller is the central processing unit of computer system, and modification instruction is to call computer system
Basic input output system（BIOS）In default threshold modifying program.
Charge management module prestores lithium battery accessible maximum charging current threshold value and judgement in charging process
The minimum charging current threshold value that lithium battery is full of, accessible maximum charging current threshold value is the maximum charge that lithium battery can be born
Current value.Charging controlling command includes stopping charging, recovers charging, preparatory condition charging and the charging that imposes a condition.
When charging controlling command is stops charging, the charging current threshold value of controller modification battery charging management chip is
One value more than maximum charging current threshold value.For example, maximum charging current threshold value is 2A, minimum charging current threshold value is
80mA, then be 5A by charging current threshold modifying.Because actual charge current value there is no fear of being more than maximum charging current threshold value
2A, and charging current when being less than minimum charging current threshold value 80mA lithium battery just stop charging, so will be charged electricity once user
Stream threshold value makes a numerical value 5A for being more than maximum charging current threshold value into, when notebook computer does not dismantle battery and by power supply
Line with it is external exchange electrical connection when, notebook computer be in which charged state can all stop at once charging.It is external having
In the case that power supply is without notebook its cells, this method both without dismantling battery, it also avoid Notebook Battery
Meaningless automatic charging, greatly improves the service life of battery.
When charging controlling command is recovers charging, the charging current threshold value of controller modification battery charging management chip is
One preset value equal to minimum charging current threshold value.For example, charging current threshold value is 5A, minimum charging current threshold value is
80mA, then be 80mA by charging current threshold modifying, such battery will recover normal state, charge normal.
When charging controlling command is that preparatory condition charges, controller changes the charging current threshold of battery charging management chip
It is worth for a preset value between maximum charging current threshold value and minimum charging current threshold value.Preset value is that charge management module is pre-
First store, for example, maximum charging current threshold value be 2A, minimum charging current threshold value be 80mA, it is assumed that preset value be 1.5A,
1.2A, 1A, 500mA, correspond to respectively lithium battery charge capacity 90%, 92%, 95%, 98%, by charging current threshold modifying
For 1A, then represent user and wish to stop charging when lithium cell charging is to 95%, such design is in order to avoid rechargeable battery is passed through
It is often fully charged and influence battery to provide a user selection, facilitate user both to have ensured that product possessed high electricity,
Also avoid rechargeable battery often fully charged and influence battery.
When being charged when charging controlling command to impose a condition, controller changes the charging electricity of the battery charging management chip
Threshold value is flowed for one by running on the setting value that the charge management module under operating system is received, and setting value is between maximum charge
Between current threshold and minimum charging current threshold value.For example, maximum charging current threshold value is 2A, minimum charging current threshold value is
80mA, user can be setting value in the charge management module autonomous interface input charging current threshold value of operating system, such as 1A,
Now lithium battery corresponding to setting value charge capacity 95% is pointed out at charge management module interface automatically, facilitates user autonomous
Operation, the expectation charge volume of user will be accurate to 1% even more small, meet different user needs.
Fig. 2 is the schematic diagram of charging management system one embodiment of lithium battery of the present invention.
A kind of charging management system of lithium battery, for filling to the lithium battery 160 including battery charging management chip 140
Electric process is managed, and battery charging management chip 140 can judge whether current charging current is less than the charging current threshold of setting
Value, if so, then stopping, to the lithium cell charging, otherwise keeping charging.
The charging management system of lithium battery includes the operating system of hardware system and hardware system with controller 120,
Controller 120 is communicated to connect with battery charging management chip 140, operating system charge management module 100.
Charge management module 100 is used to receive charging controlling command, and according to the corresponding modification of charging controlling command generation
Instruction.
Controller 120 is used to obtain modification instruction and according to the charging of modification instruction modification battery charging management chip 140
Current threshold.
Charge management module 100 prestores the accessible maximum charging current threshold value in charging process of lithium battery 160
The minimum charging current threshold value being full of with judgement lithium battery 160.Charging controlling command is including stopping charging, recovery charging, presetting
Condition charges and the charging that imposes a condition.
When charging controlling command is stops charging, the charging current of the modification battery charging management of controller 120 chip 140
Threshold value is a preset value for being more than maximum charging current threshold value；When charging controlling command is recovers charging, controller 120 is repaiied
It is a preset value for being equal to minimum charging current threshold value to change the charging current threshold value of battery charging management chip 140.
When charging controlling command is that preparatory condition charges, the charging electricity of the modification battery charging management of controller 120 chip 140
Stream threshold value is a preset value between maximum charging current threshold value and minimum charging current threshold value.
When being charged when charging controlling command to impose a condition, the charging of the modification battery charging management of controller 120 chip 140
Current threshold is a setting value received by the charge management module 100 run under operating system, and setting value is between most
Greatly between charging current threshold value and minimum charging current threshold value.
The charging management method and charging management system of this lithium battery can be applied on electronic digital product, electronic digital
Product includes notebook computer, tablet personal computer, palm PC.In other embodiments, other needs are can be applied in use
On the electronic product of lithium battery.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (6)
1. a kind of charging management method of lithium battery, it is characterised in that comprise the following steps：
Battery charging management chip detects the current charging current of lithium battery；
Battery charging management chip judges whether the current charging current is less than the charging current threshold value of setting, if so, then stopping
Only to the lithium cell charging, charging is otherwise kept；
The step of also including changing the charging current threshold value：
The charge management module run under operating system receives charging controlling command, and is generated according to the charging controlling command
Corresponding modification instruction；
The controller that the modification instruction is connected with battery charging management chip communication is obtained, and the controller is repaiied according to
Change the charging current threshold value of battery charging management chip described in instruction modification；The charge management module prestores lithium battery and existed
The minimum charging current threshold value that accessible maximum charging current threshold value and judgement lithium battery are full of in charging process；The charging
Control command charges to stop charging or recovery；When the charging controlling command is stops charging, the controller changes institute
It is a preset value for being more than the maximum charging current threshold value to state the charging current threshold value of battery charging management chip；When described
Charging controlling command is recovers during charging, and the charging current threshold value that the controller changes the battery charging management chip is one
The individual preset value equal to the minimum charging current threshold value.
2. the charging management method of lithium battery according to claim 1, it is characterised in that the charging controlling command is pre-
If condition charges, when the charging controlling command is that preparatory condition charges, the controller changes the battery charging management
The charging current threshold value of chip is one between the maximum charging current threshold value and the minimum charging current threshold value
Preset value.
3. the charging management method of lithium battery according to claim 1, it is characterised in that the charging controlling command is to set
Fixed condition charges, when being charged when the charging controlling command to impose a condition, and the controller changes the battery charging management
The charging current threshold value of chip is a setting value received by the charge management module run under operating system, institute
Setting value is stated between the maximum charging current threshold value and the minimum charging current threshold value.
4. the charging management method of lithium battery according to claim 1, it is characterised in that the controller is department of computer science
The central processing unit of system, the modification instruction is default threshold modifying in the basic input output system for call computer system
Program.
5. a kind of charging management system of lithium battery, enters for the charging process to the lithium battery including battery charging management chip
Row management, the battery charging management chip can judge whether current charging current is less than the charging current threshold value of setting, if so,
Then stop, to the lithium cell charging, otherwise keeping charging；
The charging management system includes the operating system of hardware system and the hardware system with controller, the control
Device is connected with the battery charging management chip communication, the operating system charge management module；
The charge management module is used to receive charging controlling command, and according to the corresponding modification of charging controlling command generation
Instruction；
The controller is used to obtain the modification instruction and the battery charging management chip according to the modification instruction modification
Charging current threshold value；The charge management module prestores lithium battery accessible maximum charging current in charging process
The minimum charging current threshold value that threshold value and judgement lithium battery are full of；The charging controlling command charges to stop charging or recovery；
When the charging controlling command is stops charging, the controller changes the charging current threshold of the battery charging management chip
It is worth for a preset value for being more than the maximum charging current threshold value；It is described when the charging controlling command is recovers charging
Controller changes the charging current threshold value of the battery charging management chip and is equal to the minimum charging current threshold value for one
Preset value.
6. the charging management system of lithium battery according to claim 5, it is characterised in that the charging controlling command is pre-
If condition charges, when the charging controlling command is that preparatory condition charges, the controller changes the battery charging management
The charging current threshold value of chip is one between the maximum charging current threshold value and the minimum charging current threshold value
Preset value.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2016015796A (en) * | 2014-07-01 | 2016-01-28 | 日産自動車株式会社 | Device, system and method for electric vehicle charge control |
| CN107491158A (en) * | 2017-07-19 | 2017-12-19 | 苏州三星电子电脑有限公司 | Laptop electric power control device |
| CN110148992B (en) * | 2019-06-25 | 2020-10-09 | 无锡睿勤科技有限公司 | Charging control method, terminal device and storage medium |
| CN110611356A (en) * | 2019-10-30 | 2019-12-24 | 山东超越数控电子股份有限公司 | Notebook lithium battery charging protection method |
| CN112421746A (en) * | 2020-11-09 | 2021-02-26 | 江苏科技大学 | Charging and discharging control and management method and device for SC-Li-SC mixed energy storage |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103166283A (en) * | 2011-12-15 | 2013-06-19 | 松下电器产业株式会社 | Charge circuit, and battery-charger assemblage with the charge circuit |
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| US7834591B2 (en) * | 2006-02-16 | 2010-11-16 | Summit Microelectronics, Inc. | Switching battery charging systems and methods |
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| CN103166283A (en) * | 2011-12-15 | 2013-06-19 | 松下电器产业株式会社 | Charge circuit, and battery-charger assemblage with the charge circuit |
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