CN108494060A - The balance control method of lithium-ions battery module - Google Patents
The balance control method of lithium-ions battery module Download PDFInfo
- Publication number
- CN108494060A CN108494060A CN201810436917.4A CN201810436917A CN108494060A CN 108494060 A CN108494060 A CN 108494060A CN 201810436917 A CN201810436917 A CN 201810436917A CN 108494060 A CN108494060 A CN 108494060A
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- China
- Prior art keywords
- voltage
- charging
- balanced
- charger
- equilibrium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
Abstract
The invention discloses a kind of balance control methods of lithium-ions battery module, balanced cut-in voltage is close to overcharge protection voltage, equilibrium closing voltage, which is less than, overcharges recovery voltage, charger total voltage is less than battery pack always balanced cut-in voltage, normal termination of charging when battery voltage balanced is not turned on equilibrium, when there is cell voltage relatively low in battery pack, the high several batteries of voltage can be charged to balanced unlatching and overcharge a protection point rear wing charge closing by charger in charging process, recovery point is overcharged when several batteries overcharged are discharged to by equilibrium, charging is opened in protection, charger again charges to battery pack；If pressure difference or excessive; the high several batteries of voltage can be charged to balanced unlatching again and overcharge protection point by charger during recharging; then protection board is again switched off charging; several batteries overcharged are discharged to and overcharge recovery point by equilibrium; protection board opens charging, and charger again charges to battery pack.The present invention is easy to use, and portfolio effect is splendid.
Description
Technical field
The present invention relates to a kind of balance control methods of lithium-ions battery module.
Background technology
The conventional passive equalization methods of lithium-ions battery：Equilibrium closing voltage, which is higher than, overcharges recovery voltage, in charging process
Cell voltage reaches balanced opening point equilibrium and opens, and is then persistently charged to over-charging of battery, charge closing, battery by balanced discharge extremely
Point is closed in equilibrium, and charging and balanced end are not then turned on balanced and charging, and charging every time carries out primary balanced, and portfolio effect is not
It is good.
Invention content
The purpose of the present invention is to provide a kind of balance control methods of the good lithium-ions battery module of portfolio effect.
Technical solution of the invention is：
A kind of balance control method of lithium-ions battery module, it is characterized in that：Balanced cut-in voltage is close to overcharge protection voltage,
Equilibrium closes voltage and is less than battery pack always balanced cut-in voltage less than recovery voltage, charger total voltage is overcharged, works as cell voltage
Normal termination of charging when balanced is not turned on equilibrium, when having a section or several batteries low voltages in battery pack, in charging process
The high several batteries of voltage can be charged to balanced unlatching and overcharge a protection point rear wing charge closing by middle charger, when equilibrium will
Several batteries overcharged, which are discharged to, overcharges recovery point, and charging is opened in protection, and charger again charges to battery pack, at this time
Through by primary balanced, the direct pressure difference of battery has furthered, if pressure difference or excessive, charger can be again during recharging
Secondary several batteries that voltage is high be charged to it is balanced open and overcharge protection point, then protection board is again switched off charging, equilibrium incited somebody to action
Several batteries filled, which are discharged to, overcharges recovery point, and protection board opens charging, and charger again charges to battery pack, repeatedly follows
Stop balanced and charging after ring after each batteries pressure difference reach in battery pack.
The present invention is easy to use, and portfolio effect is splendid.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is work flow diagram of the present invention.
Specific implementation mode
A kind of balance control method of lithium-ions battery module, balanced cut-in voltage is close to overcharge protection voltage, balanced
It closes voltage and is less than battery pack always balanced cut-in voltage less than recovery voltage, charger total voltage is overcharged（It is single for 7 string batteries
The balanced cut-in voltage of section is 4.18, and total equilibrium cut-in voltage is 4.18*7=29.26）, charge normal knot when battery voltage balanced
Beam is not turned on equilibrium, and when having a section or several batteries low voltages in battery pack, charger can be by voltage in charging process
High several batteries are charged to balanced unlatching and overcharge a protection point rear wing charge closing, when several batteries overcharged are put in equilibrium
Electricity opens charging to recovery point, protection is overcharged, and charger again charges to battery pack, has already passed through primary equilibrium at this time,
The direct pressure difference of battery has furthered, if pressure difference or excessive, charger can be again by high several of voltage during recharging
Batteries are charged to balanced unlatching and overcharge protection point, and then rear wing is again switched off charging, several batteries that equilibrium will overcharge
It is discharged to and overcharges recovery point, protection board opens charging, and charger again charges to battery pack, repeatedly works as battery pack after cycle
In each batteries pressure difference reach after stop balanced and charging, as long as such balanced way charger is connected to battery
On, will equilibrium constantly be carried out until every batteries of battery pack all reach balance to battery pack, portfolio effect is splendid.
Claims (1)
1. a kind of balance control method of lithium-ions battery module, it is characterized in that：Balanced cut-in voltage is electric close to protection is overcharged
Pressure, equilibrium close voltage less than recovery voltage is overcharged, and charger total voltage is less than battery pack always balanced cut-in voltage, when battery electricity
Charging normal termination is not turned on equilibrium when pressure is balanced, when having a section or several batteries low voltages in battery pack, is charging
The high several batteries of voltage can be charged to balanced unlatching and overcharge a protection point rear wing charge closing by charger in journey, work as equilibrium
Several batteries overcharged are discharged to and overcharge recovery point, charging is opened in protection, and charger again charges to battery pack, at this time
Primary equilibrium is had already passed through, the direct pressure difference of battery has furthered, if pressure difference or excessive, charger meeting during recharging
The high several batteries of voltage are charged to balanced unlatching again and overcharge protection point, then protection board is again switched off charging, and equilibrium will
Several batteries overcharged, which are discharged to, overcharges recovery point, and protection board opens charging, and charger again charges to battery pack, repeatedly
Stop balanced and charging after cycle after each batteries pressure difference reach in battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810436917.4A CN108494060A (en) | 2018-05-09 | 2018-05-09 | The balance control method of lithium-ions battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810436917.4A CN108494060A (en) | 2018-05-09 | 2018-05-09 | The balance control method of lithium-ions battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108494060A true CN108494060A (en) | 2018-09-04 |
Family
ID=63354173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810436917.4A Pending CN108494060A (en) | 2018-05-09 | 2018-05-09 | The balance control method of lithium-ions battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108494060A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109017429A (en) * | 2018-10-09 | 2018-12-18 | 天津易众腾动力技术有限公司 | A kind of passive equalization algorithm of full working scope of power battery pack quantization |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599658A (en) * | 2009-04-22 | 2009-12-09 | 北京华大智宝电子系统有限公司 | Lithium battery pack charge capacity equilibrium control method and protective device thereof |
| CN107979133A (en) * | 2017-12-13 | 2018-05-01 | 程志均 | A kind of battery pack charging rapidly and efficiently passive equalization methods |
-
2018
- 2018-05-09 CN CN201810436917.4A patent/CN108494060A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599658A (en) * | 2009-04-22 | 2009-12-09 | 北京华大智宝电子系统有限公司 | Lithium battery pack charge capacity equilibrium control method and protective device thereof |
| CN107979133A (en) * | 2017-12-13 | 2018-05-01 | 程志均 | A kind of battery pack charging rapidly and efficiently passive equalization methods |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109017429A (en) * | 2018-10-09 | 2018-12-18 | 天津易众腾动力技术有限公司 | A kind of passive equalization algorithm of full working scope of power battery pack quantization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180904 |
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| RJ01 | Rejection of invention patent application after publication |