CN206611206U - A kind of dynamic lithium battery charging pulse modulating device for being controlled by BMS - Google Patents
A kind of dynamic lithium battery charging pulse modulating device for being controlled by BMS Download PDFInfo
- Publication number
- CN206611206U CN206611206U CN201720236362.XU CN201720236362U CN206611206U CN 206611206 U CN206611206 U CN 206611206U CN 201720236362 U CN201720236362 U CN 201720236362U CN 206611206 U CN206611206 U CN 206611206U
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- China
- Prior art keywords
- lithium battery
- dynamic lithium
- bms
- controlled
- electric capacity
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- 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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- 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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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model is mainly concerned with a kind of dynamic lithium battery charging pulse modulating device for being controlled by BMS, is serially connected in DC charging device and is filled between dynamic lithium battery group, including the switch K controlled by BMS, in addition to electric capacity C1, electric capacity C2.The utility model is not on the premise of customary DC charging device charge mode is changed, the D.C.current modulation that conventional charging equipment is exported is voltage, the pulse current of controlled current flow, and pulsewidth, frequency and dutycycle are adjusted by BMS according to the impedance operator for being filled dynamic lithium battery group, realize and dynamic lithium battery group pulse is charged, so as to suppress lithium dendrite growth, polarization is eliminated, the temperature rise of battery is reduced, extend dynamic lithium battery service life, improve the security performance of battery.
Description
Technical field
The utility model is related to dynamic lithium battery charging device technical field, especially with a kind of power for being controlled by BMS
Lithium cell charging impulse modulation device is relevant.
Background technology
Dynamic lithium battery has that specific energy density is big, discharge and recharge long lifespan, power output are high, working range is wide, self discharge
Many advantages, such as small, environmental protection and secondary utilization, power energy storage field, such as electric automobile have been widely used at present.
Because power energy storage needs larger operating current and voltage, it is therefore desirable to by multiple single power batteries in series-parallel mode
Battery pack is constituted, in use, the life-span of battery pack and security are extremely important.
Current driving force lithium battery group generally uses constant current, constant pressure, multi-stage constant current, or the direct current that this several ways is combined
Charging modes.In order to realize quick charge, generally charged using high current, but above-mentioned charging modes can make lithium battery interior
Polarization and electrode surface formation lithium crystallization, accelerate lithium battery capacity decay, even result in security incident.Pulse charge method can
While improving charge efficiency, polarization can be eliminated, suppresses lithium dendrite growth, the temperature rise of lithium battery is filled in reduction, so as to extend lithium
The service life of battery, improves the security performance of battery.But for Large Copacity, high-tension power lithium battery cell system, it can meet
The pulse charge equipment of practical application is relatively difficult to achieve.The present inventor devises a kind of dynamic lithium battery charging arteries and veins for this problem
Thus modulated device, this case produces.
Utility model content
The purpose of this utility model is to provide a kind of dynamic lithium battery charging pulse modulating device for being controlled by BMS, concatenation
In customary DC charging device and filled between dynamic lithium battery group, before customary DC charging device charge mode is not changed
Put, by this new device, the D.C.current modulation that customary DC charging device is exported is voltage, the pulse of controlled current flow
Electric current, and pulsewidth, frequency and dutycycle be adjusted by BMS according to the impedance operator for being filled dynamic lithium battery group, realizes to dynamic
Power lithium battery group pulse charge, so as to suppress lithium dendrite growth, eliminates polarization, reduction charging temperature rise improves security, extension makes
Use the life-span.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of dynamic lithium battery charging pulse modulating device for being controlled by BMS, is serially connected in DC charging device with being filled
Between power lithium battery group, including the switch K controlled by BMS, in addition to electric capacity C1, electric capacity C2；Switch K is connected on DC charging dress
Put and filled in the loop of dynamic lithium battery group, electric capacity C1 and electric capacity C2 are in parallel on loop.
Principle of the present utility model is that DC charging current can be cut off in switch K, and electric capacity C1 is can absorb when switching K cut-outs
Come to the electric current of customary DC charging device, play afterflow；Electric capacity C2, when switching K cut-outs, electric discharge is provided to lithium battery group
Loop.K is switched by BMS controls, closure is determined with break time by BMS according to the impedance operator of lithium battery group.
The beneficial effects of the utility model are as follows：
Impulse modulation device of the present utility model, small volume few with component, the characteristics of reliability is high.It can be arranged on
In power lithium battery cell system, the pulse charge to power lithium battery cell system can be realized using customary DC charging device, extension is dynamic
Power lithium battery service life, improves the security performance of battery.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model preferred embodiment；
Fig. 2 is the utility model preferred embodiment charging schematic diagram；
Fig. 3 is the utility model preferred embodiment electric discharge schematic diagram.
Embodiment
Referring to Fig. 1 to Fig. 3, the utility model preferred embodiment is further elaborated.
As shown in figure 1, a kind of lithium ion battery pulse charging apparatus, is mainly serially connected in DC charging device 1 with being filled
Between power lithium battery group 2, the part being related to has switch K, electric capacity C1, electric capacity C2.Switch K be connected on DC charging device 1 with
Filled in the loop of dynamic lithium battery group 2, electric capacity C1 and electric capacity C2 are in parallel on loop, switch K is by BMS controls.
As shown in Fig. 2 when customary DC charging device charges to lithium battery group, switch K closures, DC charging dress
Put 1, switch K, filled dynamic lithium battery group 2 and form loop and lithium battery group is charged；As shown in figure 3, during switch K cut-outs,
Charging stops, DC charging device 1, electric capacity C1 formation loop, maintains the normal output of conventional charging equipment, and by electrical power storage
In electric capacity C1, while being filled dynamic lithium battery group 2, electric capacity C2 formation loop, lithium battery group electric discharge.By adjusting switch K's
Closure, break time, realize that pulsewidth, frequency and dutycycle are adjustable.
Above is one kind of the utility model preferred embodiment, made under the utility model concept thereof it is some its
He is simple to replace and changes, and should all be considered as belonging to protection category of the present utility model.
Claims (1)
1. a kind of dynamic lithium battery charging pulse modulating device for being controlled by BMS, it is characterised in that：It is serially connected in DC charging device
With being filled between dynamic lithium battery group, including the switch K controlled by BMS, in addition to electric capacity C1, electric capacity C2；Switch K is connected on directly
Current charge device is with being filled in the loop of dynamic lithium battery group, and electric capacity C1 and electric capacity C2 are in parallel on loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720236362.XU CN206611206U (en) | 2017-03-10 | 2017-03-10 | A kind of dynamic lithium battery charging pulse modulating device for being controlled by BMS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720236362.XU CN206611206U (en) | 2017-03-10 | 2017-03-10 | A kind of dynamic lithium battery charging pulse modulating device for being controlled by BMS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206611206U true CN206611206U (en) | 2017-11-03 |
Family
ID=60166438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720236362.XU Expired - Fee Related CN206611206U (en) | 2017-03-10 | 2017-03-10 | A kind of dynamic lithium battery charging pulse modulating device for being controlled by BMS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206611206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564672A (en) * | 2020-02-29 | 2020-08-21 | 青岛能蜂电气有限公司 | Lithium ion battery repairing method |
-
2017
- 2017-03-10 CN CN201720236362.XU patent/CN206611206U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564672A (en) * | 2020-02-29 | 2020-08-21 | 青岛能蜂电气有限公司 | Lithium ion battery repairing method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |