CN103811823A - Lithium battery pack for electric vehicle - Google Patents
Lithium battery pack for electric vehicle Download PDFInfo
- Publication number
- CN103811823A CN103811823A CN201410044432.2A CN201410044432A CN103811823A CN 103811823 A CN103811823 A CN 103811823A CN 201410044432 A CN201410044432 A CN 201410044432A CN 103811823 A CN103811823 A CN 103811823A
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- module
- electric vehicle
- power
- type 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.)
- Pending
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 70
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 241000156302 Porcine hemagglutinating encephalomyelitis virus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Classifications
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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
- H01M10/04—Construction or manufacture in general
- H01M10/0445—Multimode batteries, e.g. containing auxiliary cells or electrodes switchable in parallel or series connections
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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
- 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
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- H02J7/0026—
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a lithium battery pack for an electric vehicle. The lithium battery pack comprises a low-capacity power type module and a high-capacity volumetric type lithium battery group, wherein a positive electrode of the power type module is connected with a positive electrode of the volumetric type lithium battery group, and a negative electrode of the power type module is connected with a negative electrode of a volumetric type lithium battery module; the nominal voltage of the power type module is not lower than that of the volumetric type module; the highest charging voltage borne by the power type module is higher than the highest charging voltage borne by the volumetric type module; the power type module is connected with a voltage equilibrium circuit; the volumetric type lithium battery group is in series connected with a current limiting circuit. The lithium battery pack for the electric vehicle, which is disclosed by the invention, is compatible with the current discharging capacity and the specific energy and can effectively meet the requirement on a traveled distance.
Description
Technical field
The present invention relates to a kind of power supply on vehicle, especially a kind of electric vehicle lithium battery bag.
Background technology
2012, global electric automobile (comprising PHEV and EV) sales volume reached 12.96 ten thousand, was almost doubled compared with 6.8 ten thousand of this electric automobile commercialization first year in 2011.Although still not worth mentioning compared with orthodox car up to tens million of amount sales volumes, for these new things of electric automobile, within 2 years, can obtain such achievement or all well and good.A few years from now on whole world electric automobile market will be shown greatly the speed of doubling every year and up increase, to global electric automobile year in 2015 sales volume will break through 1,000,000.
Existing electric vehicle lithium battery bag, can select power lithium battery module or capacity type lithium battery module conventionally, for power lithium battery module, have compared with large current discharging capability, but specific energy is little, and difficulty meets the requirement of electric motor car distance travelled to capacity; For capacity type lithium battery module, there is higher specific energy, but difficulty is born heavy-current discharge, and battery easily generates heat, affect the life-span of battery, be prone to potential safety hazard.
If select electric vehicle power lithium battery module, especially ultracapacitor, its specific energy is low, and cost is high, can not meet the requirement of the distance travelled of electric motor car.
If select electric vehicle capacity type lithium battery module, because of large current discharging capability relative mistake, be prone to battery pack temperature and rise, and inhomogeneous, cause the problems such as the short and potential safety hazard of battery life; .
If select the lithium battery module of power in electric vehicle, though take into account power and capacity characteristic, difficulty meets the distance travelled of electric motor car, the requirement of power and cost at present.
Summary of the invention
The deficiency requiring in order to overcome the current discharge ability of cannot taking into account, specific energy and the distance travelled of existing electric vehicle lithium battery bag, the invention provides one and take into account current discharge ability and specific energy, effectively meet the electric vehicle lithium battery bag that distance travelled requires.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of electric vehicle lithium battery bag, comprise power-type module and the jumbo capacity type lithium battery group of low capacity, the positive pole of described power-type module is connected with the positive pole of described capacity type lithium battery group, and the negative pole of described power-type module is connected with the negative pole of described capacity type lithium battery group; The nominal voltage of described power-type module is not less than the nominal voltage of capacity type lithium battery module, and described power-type module can be born the maximum charging voltage that the ceiling voltage of charging can bear higher than capacity type module; Described power-type module is in parallel with equalizing circuit, and described capacity type lithium battery group is connected with current-limiting circuit.
Further, described power-type module is super capacitor module or power lithium battery module.
Further again, described negative or positive electrode is connected in series successively with circuit breaker, relay.
Further, described capacity type lithium battery module is connected with protective circuit.
Described power-type module be connected in order to the first Acquisition Circuit that gathers voltage and temperature signal.
Described capacity type lithium battery group be connected in order to the second Acquisition Circuit that gathers voltage and temperature signal.
Beneficial effect of the present invention is mainly manifested in: 1) adopt the power-type module of low capacity and the lithium battery bag of jumbo capacity type lithium battery module formation in parallel, take into account power and capacity characteristic, meet applying working condition and the cost requirement of electric motor car; 2) employing power-type module, all the time in underfill state in charging process, improves charge efficiency, temperature rise while reducing charging; 3) capacity type lithium battery module gathers and voltage balance circuit with signal (voltage and temperature), and major loop is with threshold currents device and circuit, and controlled discharge electric current extends life-span of lithium battery bag; 4) lithium battery band has relay and fuse unit, improves the fail safe of lithium battery bag.
Accompanying drawing explanation
Fig. 1 is a kind of schematic diagram of electric vehicle lithium battery bag.
Fig. 2 is the schematic diagram of another kind of electric vehicle lithium battery bag.
Fig. 3 is the schematic diagram of another electric vehicle lithium battery bag.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
With reference to Fig. 1 ~ Fig. 3, a kind of electric vehicle lithium battery bag, comprise power-type module 2 and the jumbo capacity type lithium battery group 1 of low capacity, the positive pole of described power-type module 2 is connected with the positive pole of described capacity type lithium battery group 1, and the negative pole of described power-type module 2 is connected with the negative pole of described capacity type lithium battery group 1; The nominal voltage of described power-type module 2 is not less than the nominal voltage of capacity type lithium battery module 1, and the described power-type module 2 charging ceiling voltage that can the bear maximum charging voltage that can bear higher than capacity type module 1; Described power-type module 2 is connected with equalizing circuit, and described capacity type lithium battery group 1 is connected with current-limiting circuit.
Further, described power-type module 2 is super-capacitor module or power lithium battery module, and wherein Fig. 1 and Fig. 2 are super-capacitor module, and Fig. 3 is power lithium battery module.
Further again, described negative or positive electrode is connected in series successively with circuit breaker, relay.
Further, described capacity type lithium battery module 1 is connected with protective circuit.
Described power-type module 2 be connected in order to the first Acquisition Circuit that gathers voltage and temperature signal.
Described capacity type lithium battery group 1 be connected in order to the second Acquisition Circuit that gathers voltage and temperature signal.
In the present embodiment, a power-type module 2 jumbo capacity type lithium battery module 1 in parallel of low capacity, forms an electric vehicle lithium battery bag;
Power-type module 2 possesses good large current density power and the resistance to exoergic power of crossing;
The nominal voltage of power-type module 2 is not less than the nominal voltage of capacity type lithium battery module 1, and the charging voltage that can bear higher than capacity type module 1 of the charging voltage that can bear of power-type module 2.In the charging later stage, allow power-type module in underfill state, improve the charge efficiency of lithium battery bag, reduce the temperature in charging process.
Capacity type lithium battery module 1 has high-energy-density and safety features, meets the requirement of electric motor car distance travelled to discharge energy.
Power-type module 2 is with first signal Acquisition Circuit and equalizing circuit in order to gather voltage and temperature; Capacity type lithium battery module 1, with secondary signal Acquisition Circuit and protective circuit in order to gather voltage and temperature, with major loop threshold currents device and circuit, is controlled its discharging current size.
Whole electric vehicle lithium battery band has circuit breaker, relay and fuse unit, improves the fail safe of lithium battery bag.
Claims (6)
1. an electric vehicle lithium battery bag, it is characterized in that: the power-type module and the jumbo capacity type lithium battery group that comprise low capacity, the positive pole of described power-type module is connected with the positive pole of described capacity type lithium battery group, and the negative pole of described power-type module is connected with the negative pole of described capacity type lithium battery group;
The nominal voltage of described power-type module is not less than the nominal voltage of capacity type lithium battery module, and the described power-type module charging ceiling voltage that can the bear maximum charging voltage that can bear higher than capacity type module;
Described power-type module is connected with voltage balance circuit, and described capacity type lithium battery group is connected with current-limiting circuit.
2. electric vehicle lithium battery bag as claimed in claim 1, is characterized in that: described power-type module is super capacitor module or power lithium battery module.
3. electric vehicle lithium battery bag as claimed in claim 1 or 2, is characterized in that: described negative or positive electrode is connected in series successively with circuit breaker, relay.
4. electric vehicle lithium battery bag as claimed in claim 1 or 2, is characterized in that: described capacity type lithium battery module and protective circuit are connected.
5. electric vehicle lithium battery bag as claimed in claim 1 or 2, is characterized in that: described power-type module be connected in order to the first Acquisition Circuit that gathers voltage and temperature signal.
6. electric vehicle lithium battery bag as claimed in claim 1 or 2, is characterized in that: described capacity type lithium battery group be connected in order to the second Acquisition Circuit that gathers voltage and temperature signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410044432.2A CN103811823A (en) | 2014-01-30 | 2014-01-30 | Lithium battery pack for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410044432.2A CN103811823A (en) | 2014-01-30 | 2014-01-30 | Lithium battery pack for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103811823A true CN103811823A (en) | 2014-05-21 |
Family
ID=50708261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410044432.2A Pending CN103811823A (en) | 2014-01-30 | 2014-01-30 | Lithium battery pack for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103811823A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058369A (en) * | 2016-08-02 | 2016-10-26 | 威马中德汽车科技成都有限公司 | Double-area battery thermal management system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201025205Y (en) * | 2007-03-26 | 2008-02-20 | 康国强 | Assisted start device for car |
| CN101779322A (en) * | 2007-08-10 | 2010-07-14 | 罗伯特.博世有限公司 | Energy storage unit, particularly accumulator |
| US20120264000A1 (en) * | 2011-04-15 | 2012-10-18 | Chen Han-Chen | Hybrid battery module |
| CN103326435A (en) * | 2013-06-24 | 2013-09-25 | 中国兵器工业第二一三研究所 | High-performance lithium battery pack |
| CN203746991U (en) * | 2014-01-30 | 2014-07-30 | 许玉林 | Lithium battery pack for electric vehicle |
-
2014
- 2014-01-30 CN CN201410044432.2A patent/CN103811823A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201025205Y (en) * | 2007-03-26 | 2008-02-20 | 康国强 | Assisted start device for car |
| CN101779322A (en) * | 2007-08-10 | 2010-07-14 | 罗伯特.博世有限公司 | Energy storage unit, particularly accumulator |
| US20120264000A1 (en) * | 2011-04-15 | 2012-10-18 | Chen Han-Chen | Hybrid battery module |
| CN103326435A (en) * | 2013-06-24 | 2013-09-25 | 中国兵器工业第二一三研究所 | High-performance lithium battery pack |
| CN203746991U (en) * | 2014-01-30 | 2014-07-30 | 许玉林 | Lithium battery pack for electric vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 王震坡，孙逢春编著: "《电动车辆动力电池***及应用技术》", 28 February 2012 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058369A (en) * | 2016-08-02 | 2016-10-26 | 威马中德汽车科技成都有限公司 | Double-area battery thermal management system and method |
| CN106058369B (en) * | 2016-08-02 | 2019-06-18 | 威马汽车科技集团有限公司 | A kind of two-region battery thermal management system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU ANKAO ENERGY CO., LTD. Free format text: FORMER OWNER: XU YULIN Effective date: 20150727 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150727 Address after: Suzhou City, Jiangsu province 215000 Industrial Park Suzhou Huahong Street No. 29 Applicant after: Suzhou peace is by Electrosource, Inc. Address before: The Poplar Street of Hangzhou city in Zhejiang province 310018 Hangzhou economic and Technological Development Zone No. 6 Street No. 452 Building 2 room A0503-A0504/A0515-A0517 Applicant before: Xu Yulin |
|
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140521 |
|
| RJ01 | Rejection of invention patent application after publication |