CN203536996U - Device for charging battery cells in serial lithium battery - Google Patents
Device for charging battery cells in serial lithium battery Download PDFInfo
- Publication number
- CN203536996U CN203536996U CN201320589662.8U CN201320589662U CN203536996U CN 203536996 U CN203536996 U CN 203536996U CN 201320589662 U CN201320589662 U CN 201320589662U CN 203536996 U CN203536996 U CN 203536996U
- Authority
- CN
- China
- Prior art keywords
- charging
- lithium battery
- battery
- lithium
- charging module
- 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.)
- Expired - Fee Related
Links
- 238000007600 charging Methods 0.000 title claims abstract description 57
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 54
- 230000005611 electricity Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 4
- 230000004224 protection Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a device for charging battery cells in a serial lithium battery. The device is mounted on the lithium battery formed by a plurality of lithium cells connected in series, and comprises a plurality of charging modules and controllable switches. The positive and negative electrodes of each lithium cell are connected with the positive and negative electrodes of a charging module charging interface, respectively. One controllable switch is disposed between each lithium cell and the corresponding charging module. A charging circuit is formed by each lithium cell, one charging module and one controllable switch. Each controllable switch is controlled by the corresponding charging module to be turned on for charging and turned off when the lithium battery is fully charged. By using the device provided by the utility model, the balance of the whole battery is good during the charging process of the lithium battery, and the uniformity of all the cells after charging is good, prolonging the service life of the battery; besides, all the cells are fully charged, and can supply power for the load at the maximum, thereby preventing the problem of reduction in discharging efficiency in a discharge mode where the discharge circuit is connected with multiple switches in series.
Description
Technical field
The utility model relates to protection device of electrical equipment, refers in particular to a kind of to the cell charging device in serial lithium battery group.
Background technology
Lithium battery more and more receives people's concern with advantages such as high-energy-density, high repetitive cycling access times, lightweight and environmental protections.In using the process of lithium battery, security reliability in the time of not only will guaranteeing lithium battery use, and will give full play to the ability of battery and increase the service life.
In the prior art, roughly have two kinds to the method for lithium cell charging.A kind of is to whole group of charging of lithium battery group, but when arbitrary single battery charging arrives the voltage of defined, battery management system will receive signal, stops charging, can cause like this charging of whole Battery pack discontented, charging like this will badly influence the life-span of battery repeatedly, to be charge-discharge protection circuit by multisection lithium battery charge another kind to the cell of lithium battery group, the mos pipe [metal (metal)-oxide (oxid)-semiconductor (semiconductor) field-effect transistor] of connecting one between two adjacent battery modules of battery pack and being controlled by battery management system, the both positive and negative polarity of each battery module connects respectively the both positive and negative polarity of charging inlet, although adopt which can guarantee that each battery is full of electricity, but under discharge mode, due to a plurality of powerful mos pipes of having connected in discharge loop, loss while not only having increased battery discharge, and the driving of mos pipe and heat radiation complexity, increased cost.
Utility model content
It is a kind of to the cell charging device in serial lithium battery group that the purpose of this utility model is to provide, not only make lithium battery whole battery pack balancing performance in charging process good, guarantee that every batteries is full of rear high conformity, promote the cycle life of lithium battery, and every joint single lithium battery is all full of electricity, can to load, provide power supply to greatest extent, avoid the problem that discharging efficiency reduces under discharge loop is connected the discharge mode that a plurality of switches occur.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of to the cell charging device in serial lithium battery group, be arranged in the lithium battery group being in series by some joint lithium batteries, comprise: some charging modules and gate-controlled switch, the both positive and negative polarity of every joint lithium battery connects respectively the both positive and negative polarity of a charging module charging inlet, between every joint lithium battery and corresponding charging module, also connect a gate-controlled switch, every joint lithium battery and a charging module, a gate-controlled switch forms a charge circuit, gate-controlled switch in same charge circuit is controlled at closed while needing charging by corresponding charging module and disconnects when lithium battery is full of electricity.
Adopt after such scheme, the utility model allows every joint lithium battery have charge circuit separately, to each joint cell charging, make lithium battery whole battery pack balancing performance in charging process good, guarantee that every batteries is full of rear high conformity, promote the cycle life of lithium battery, and guarantee that every joint single lithium battery is full of electricity, can provide power supply to load to greatest extent.Gate-controlled switch between every joint lithium battery and corresponding charging module is controlled its open and-shut mode by charging module, and when lithium battery is full of electricity, charging module is controlled gate-controlled switch and disconnected, and prevents that battery float and battery are by charging module home loop leakage current; When lithium battery need charge, gate-controlled switch is closed, gives lithium cell charging.A gate-controlled switch although each charge circuit is connected, but because the specified charging current of lithium battery generally only has 1/10 left and right of discharging current, so be connected on the loss of gate-controlled switch of charge circuit and cost well below the switch that is connected on discharge loop.During electric discharge, each gate-controlled switch disconnects, and is full of electric lithium battery group powering load, has avoided the problem that discharging efficiency reduces under discharge loop is connected the discharge mode that a plurality of switches occur.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, it is a kind of to the cell charging device in serial lithium battery group that the utility model discloses, and is mounted in the lithium battery group 5 being in series by some joint lithium batteries 1, comprising: some charging modules 2 and gate-controlled switch 3.The both positive and negative polarity of every joint lithium battery 1 connects respectively the both positive and negative polarity of charging module 2 charging inlets, between every joint lithium battery 1 and corresponding charging module 2, also connect a gate-controlled switch 3, every joint lithium battery 1 and charging module 2, a gate-controlled switch 3 form a charge circuit, be that every single battery sets a charge circuit, can guarantee the completely rear high conformity of every batteries (existing two schemes can cause the indivedual cells chargings of battery pack to be discontented with).In same charge circuit, each gate-controlled switch 3 is controlled its open and-shut mode by corresponding charging module 2, closed when need charge, and disconnect when lithium battery 1 is full of electricity, prevent that battery float and battery are by charging module home loop leakage current (existing two schemes cannot address this problem).During electric discharge, gate-controlled switch 3 also disconnects, by being full of electric lithium battery group 5 to load 4 power supplies, can give full play to the ability of battery, realize to greatest extent and to load 4, provide continual safe and effective power supply (charging of existing two schemes battery is discontented, not only badly influence the life-span of battery, and offer the also not guarantee of power supply that load is used).
Claims (1)
1. one kind to the cell charging device in serial lithium battery group, be arranged in the lithium battery group being in series by some joint lithium batteries, it is characterized in that comprising: some charging modules and gate-controlled switch, the both positive and negative polarity of every joint lithium battery connects respectively the both positive and negative polarity of a charging module charging inlet, between every joint lithium battery and corresponding charging module, also connect a gate-controlled switch, every joint lithium battery and a charging module, a gate-controlled switch forms a charge circuit, gate-controlled switch in same charge circuit is controlled at closed while needing charging by corresponding charging module and disconnects when lithium battery is full of electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589662.8U CN203536996U (en) | 2013-09-24 | 2013-09-24 | Device for charging battery cells in serial lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589662.8U CN203536996U (en) | 2013-09-24 | 2013-09-24 | Device for charging battery cells in serial lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536996U true CN203536996U (en) | 2014-04-09 |
Family
ID=50423171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320589662.8U Expired - Fee Related CN203536996U (en) | 2013-09-24 | 2013-09-24 | Device for charging battery cells in serial lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536996U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262163A (en) * | 2015-10-14 | 2016-01-20 | 小米科技有限责任公司 | Battery, charging device, and electronic device |
| CN110867933A (en) * | 2019-12-17 | 2020-03-06 | 成都鸣诺科技有限公司 | Online charging device for lithium battery |
| CN120389492A (en) * | 2025-06-27 | 2025-07-29 | 广东旭派新能源有限公司 | System and method for implementing multi-battery module charging management |
-
2013
- 2013-09-24 CN CN201320589662.8U patent/CN203536996U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262163A (en) * | 2015-10-14 | 2016-01-20 | 小米科技有限责任公司 | Battery, charging device, and electronic device |
| CN110867933A (en) * | 2019-12-17 | 2020-03-06 | 成都鸣诺科技有限公司 | Online charging device for lithium battery |
| CN120389492A (en) * | 2025-06-27 | 2025-07-29 | 广东旭派新能源有限公司 | System and method for implementing multi-battery module charging management |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102545291B (en) | Solar power storage system and solar power supply system | |
| CN106532852B (en) | Battery pack balancing circuit based on LC series energy storage | |
| CN103094938B (en) | Battery series-parallel connection self-balancing device | |
| CN102496979A (en) | Lithium ion battery pack equalizing circuit with automatic polarity switch | |
| CN101262138A (en) | Monocase balanced system for lithium ion dynamic battery | |
| CN205160118U (en) | Equalization circuit for battery pack | |
| CN105162199A (en) | Layered balancing circuit for battery pack | |
| CN203104011U (en) | A storage battery or capacitor charge and discharge management balance system | |
| CN201204476Y (en) | Multi-cell battery voltage equalization circuit | |
| CN103036256A (en) | Transformer scan chain type storage battery equalizing circuit and method | |
| CN106329594B (en) | Device and method for limiting current during charging of battery of energy storage system | |
| CN203536996U (en) | Device for charging battery cells in serial lithium battery | |
| CN211790810U (en) | Charging system, charger, battery pack and movable platform | |
| CN102832667A (en) | Charge-discharge equalizer circuit based on inductive energy storage for series battery pack | |
| CN106655307A (en) | Battery pack equalization circuit | |
| CN202309146U (en) | Automatic equalizing device for battery series-parallel connection | |
| CN209088562U (en) | A kind of charge and discharge current limliting battery pack parallel control device of minimal switches | |
| CN103165960B (en) | Heating thermal insulation system for electrombile battery | |
| CN102832666A (en) | Inductive energy storage based series battery pack discharging balancing circuit | |
| US20100244772A1 (en) | Battery module | |
| CN202564926U (en) | Multiple lithium ion battery charging and discharging protection circuit | |
| CN201150006Y (en) | Charging-discharging device for lithium ion battery set | |
| CN204068357U (en) | A kind of 4 joint series battery Bidirectional charging-discharging equalizing circuits | |
| CN103236725A (en) | Power supply method of solar controller control circuit and circuit thereof | |
| CN102769153B (en) | A kind of method for charging battery pack and implement device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20160924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |