CN104167571A - Lead-acid storage battery charger charging technology for electric car - Google Patents
Lead-acid storage battery charger charging technology for electric car Download PDFInfo
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- CN104167571A CN104167571A CN201410354630.9A CN201410354630A CN104167571A CN 104167571 A CN104167571 A CN 104167571A CN 201410354630 A CN201410354630 A CN 201410354630A CN 104167571 A CN104167571 A CN 104167571A
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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
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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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
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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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- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a lead-acid storage battery charger charging technology for an electric car. The technology comprises the following five stages of 1, initial-stage heavy constant current charging stage, 2, middle-stage small current charging stage, 3, after-stage small current charging stage, 4, constant voltage charging stage, and 5, float charging stage. In the first three stages, charging currents are gradually reduced by stages and are in a range of 0.05-0.2C<2>A until single-cell voltage is in a range of 2.30-2.40V, and in the last two stages, charging current is limited to a value less than or equal to 0.05C<2>A and constant voltage is in a range of 2.28-2.48V. Through use of the lead-acid storage battery charger charging technology for an electric car, battery charging efficiency is high, a battery dehydration rate is low, battery under-charging or over-charging is avoided, a battery cycle-resistant life is obviously improved and battery capacity is enough.
Description
Technical field
The present invention relates to storage battery field, be specifically related to one and be adapted at carrying out charge and discharge cycles under various ambient temperatures, be applicable to the charge technology with lead acid batteries charger that cell electric vehicle uses.
Background technology
Electric bicycle is with its advantage such as spry and light, convenient, cheap, and city's field depth is subject to consumers in general's welcome at home.Lead acid accumulator is because cost performance is high, power characteristic is good, and self discharge is little, low price, the application of having got back in electric bicycle in recent years.
Present stage, the charger that on market, lead-acid accumulator for electric bicycle uses, mostly adopts three stage charging modes; Charging current does not explicitly call for, and charging voltage value from 14.40-15.20V not etc., charges the battery with above-mentioned charger, easily causes battery charge less electricity or overcharges; Charge less electricity can cause battery capacity fast-descending; Overcharge and can cause battery dehydration seriously to cause battery bulging or dry, finally causing the shortening of battery, general battery uses about half a year and just needs to change.
Summary of the invention
Technical problem to be solved by this invention is just to provide a kind of electric motor car that is applicable to and uses lead acid batteries charger charge technology, avoids battery charge less electricity or overcharges, and improves useful life.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of electric motor car that is applicable to uses lead acid batteries charger charge technology, it is characterized in that comprising double teacher:
1) the large electric current constant current charge stage at initial stage;
2) the low current charge stage in mid-term;
3) the low current charge stage in later stage;
4) the constant voltage charge stage;
5) the floating charge stage;
At front three phases, charging current progressively reduces stage by stage, and charging current scope is 0.05-0.2C2A, charges to cell negative terminal voltage 2.30-2.40V;
In latter two stage, restriction charging current is not more than 0.05 C2A, constant voltage 2.28-2.48V.
Preferably, in the large electric current constant current charge stage in the early stage, charging current 0.2 C2A, charges to cell negative terminal voltage 2.30-2.40V, proceeds to next stage.
Preferably, in the low current charge stage in mid-term, charging current 0.10-0.15C2A, charges to cell negative terminal voltage 2.30-2.40V, proceeds to next stage.
Preferably, in the low current charge stage in later stage, charging current 0.05-0.10C2A, charges to cell negative terminal voltage 2.30-2.40V, proceeds to next stage.
Preferably, at constant voltage charge stage, current limliting 0.05C
2a, constant voltage 2.45-2.48V, when electric current drops to 0.03C
2when A, proceed to next stage.
Preferably, in the floating charge stage, Limited Current 0.05C
10a, the long-time floating charge of constant voltage 2.28-2.30V.
Preferably, in the time of charging, carry out the temperature-compensating of charging voltage by temperature sensor testing environment temperature and taking 25 DEG C as fiducial temperature, temperature compensation coefficient is-0.003V/ lattice DEG C.
Charge technology of the present invention is divided into double teacher: large electric current constant current charge stage at initial stage, low current charge stage in mid-term, low current charge stage in later stage, constant voltage charge stage and floating charge stage.
The object in large electric current constant current charge stage at initial stage is to make storage battery in very fast time charging.After battery discharge, charge acceptance is strong.Adopt large current charge can shorten the charging interval.It is cell tension 2.30-2.40V that this charging finishes time point in stage, and object is battery while reaching this voltage, there is no γ-ray emission.Avoid battery dehydration.
The object in low current charge stage in mid-term is to make storage battery producing before gas, and electrochemical reaction fully occurs.Make positive plate produce enough brown lead oxide, negative pole produces enough spongy leads.
The object in low current charge stage in later stage is to comprise polarization resistance and material resistance because of the internal resistance of cell.In order to prevent that material internal resistance from playing a role.Adopt more low current charge.Can ensure that cell active materials returns to status before charging.
The object in constant voltage charge stage is to make battery in complete charged state, and after battery reaches complete charged state, charger proceeds to next stage automatically.
Battery, in the time shelving, there will be self discharge, by floating charge mode, and the capacitance loss can make up battery and shelve time.Ensure that battery is unanimously in complete charged state.
Therefore the present invention adopts after the lead acid batteries charger charge technology of above-mentioned applicable electric motor car use, and battery charge efficiency is high, and battery percentage of water loss is low, has avoided battery charge less electricity or has overcharged, and the resistance to cycle life of battery obviously improves, battery capacity abundance.
In addition, the present invention is in the time of charging, and with temperature sensor, equipment has intelligent temperature compensate function, is adapted at carrying out charge and discharge cycles under various ambient temperatures, accomplishes not charge less in winter, and do not overcharge summer.
Embodiment
The invention provides a kind of electric motor car that is applicable to and use lead acid batteries charger charge technology, comprise following double teacher:
1) the large electric current constant current charge stage at initial stage;
2) the low current charge stage in mid-term;
3) the low current charge stage in later stage;
4) the constant voltage charge stage;
5) the floating charge stage;
At front three phases, charging current progressively reduces stage by stage, and charging current scope is 0.05-0.2C2A, charges to cell negative terminal voltage 2.30-2.40V;
In latter two stage, restriction charging current is not more than 0.05C2A, constant voltage 2.28-2.48V.
Below in conjunction with specific embodiment, the present invention is made and being illustrated.
Embodiment 1
A kind of Lead Acid Battery Used for Electric Vehicle charger charge technology that is applicable to was made up of 5 stages: (taking 48V20AH battery pack as example, this battery pack is made up of 24 single lattice).
1) charging current 0.2C
2=0.2*20=4A, charges to battery voltage 2.30*24=55.20V; Proceed to next stage.
2) charging current 0.10C
2=0.10*20=2A, charges to battery voltage 2.30*24=55.20V; Proceed to next stage.
3) charging current 0.05C
2=0.05*20=1A, charges to battery voltage 2.30*24=55.20V; Proceed to next stage.
4) current limliting 0.05C
2=0.05*20=1A, constant voltage 2.45*24=58.80V; When electric current drops to 0.03C
2when=0.03*20=0.6A, proceed to next stage.
5) Limited Current 0.03C
2=0.03*20=0.6A, the long-time floating charge of constant voltage 2.28*24=54.72V.
Embodiment 2
A kind of Lead Acid Battery Used for Electric Vehicle charger charge technology that is applicable to was made up of 5 stages: (taking 48V20AH battery pack as example, this battery pack is made up of 24 single lattice).
1) charging current 0.2C
2=0.2*20=4A, charges to battery voltage 2.40*24=57.60V; Proceed to next stage.
2) charging current 0.10C
2=0.10*20=2A, charges to battery voltage 2.40*24=57.60V; Proceed to next stage.
3) charging current 0.05C
2=0.05*20=1A, charges to battery voltage 2.40*24=57.60V; Proceed to next stage.
4) current limliting 0.05C
2=0.05*20=1A, constant voltage 2.48*24=59.52V; When electric current drops to 0.03C
2when=0.03*20=0.6A, proceed to next stage.
5) Limited Current 0.03C
2=0.03*20=0.6A, the long-time floating charge of constant voltage 2.30*24=55.2V.
Embodiment 3
A kind of Lead Acid Battery Used for Electric Vehicle charger charge technology that is applicable to was made up of 5 stages: (taking 48V20AH battery pack as example, this battery pack is made up of 24 single lattice).
1) charging current 0.2C
2=0.2*20=4A, charges to battery voltage 2.35*24=56.40V; Proceed to next stage.
2) charging current 0.10C
2=0.10*20=2A, charges to battery voltage 2.35*24=56.40V; Proceed to next stage.
3) charging current 0.05C
2=0.05*20=1A, charges to battery voltage 2.35*24=56.40V; Proceed to next stage.
4) current limliting 0.05C
2=0.05*20=1A, constant voltage 2.48*24=59.52V; When electric current drops to 0.03C
2when=0.03*20=0.6A, proceed to next stage.
5) Limited Current 0.03C
2=0.03*20=0.6A, the long-time floating charge of constant voltage 2.30*24=55.2V.
In above-mentioned three embodiment, in order to make lead acid accumulator be suitable for using under various ambient temperatures.In the time of charging, with temperature sensor, equipment has intelligent temperature compensate function, and temperature compensation coefficient is-0.003V/ lattice DEG C * 24=-0.072V/ DEG C.Be 1 DEG C of the every rising of temperature, batteries charging total voltage decline 0.072V.
The relation of charging current and battery specification: charging current is directly proportional to battery specification, and battery specification is larger, and its charging current is larger; In addition, above-mentioned C2: the rated capacity that represents 2 hour rate batteries; C10 represents the rated capacity of 10 hour rate batteries; In order to meet customer need, patent of the present invention adopts best charge technology to charge the battery according to the feature of electrokinetic cell, has ensured that battery reduces dehydration in charging process, and ensures that battery can adapt to full charge under various external environment conditions.Allow feeling more relieved that user uses, reduced the failure rate that product uses, there is extraordinary economic benefit and social benefit.
Claims (7)
1. applicable electric motor car uses a lead acid batteries charger charge technology, it is characterized in that comprising double teacher:
1) the large electric current constant current charge stage at initial stage;
2) the low current charge stage in mid-term;
3) the low current charge stage in later stage;
4) the constant voltage charge stage;
5) the floating charge stage;
At front three phases, charging current progressively reduces stage by stage, and charging current scope is 0.05-0.2C2A, charges to cell negative terminal voltage 2.30-2.40V;
In latter two stage, restriction charging current is not more than 0.05 C2A, constant voltage 2.28-2.48V.
2. one according to claim 1 is applicable to electric motor car use lead acid batteries charger charge technology, it is characterized in that: the large electric current constant current charge stage in the early stage, charging current 0.2 C2A, charges to cell negative terminal voltage 2.30-2.40V, proceeds to next stage.
3. one according to claim 2 is applicable to electric motor car use lead acid batteries charger charge technology, it is characterized in that: in the low current charge stage in mid-term, charging current 0.10-0.15C2A, charges to cell negative terminal voltage 2.30-2.40V, proceeds to next stage.
4. one according to claim 3 is applicable to electric motor car use lead acid batteries charger charge technology, it is characterized in that: in the low current charge stage in later stage, charging current 0.05-0.10C2A, charges to cell negative terminal voltage 2.30-2.40V, proceeds to next stage.
5. one according to claim 1 is applicable to electric motor car use lead acid batteries charger charge technology, it is characterized in that: at constant voltage charge stage, current limliting 0.05C
2a, constant voltage 2.45-2.48V, when electric current drops to 0.03C
2when A, proceed to next stage.
6. one according to claim 5 is applicable to electric motor car use lead acid batteries charger charge technology, it is characterized in that: in the floating charge stage, and Limited Current 0.05C
10a, the long-time floating charge of constant voltage 2.28-2.30V.
7. be applicable to electric motor car according to the one described in claim 1 to 6 any one and use lead acid batteries charger charge technology, it is characterized in that: in the time of charging, carry out the temperature-compensating of charging voltage by temperature sensor testing environment temperature and taking 25 DEG C as fiducial temperature, temperature compensation coefficient is-0.003V/ lattice DEG C.
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| CN201410354630.9A CN104167571B (en) | 2014-07-24 | 2014-07-24 | The lead acid batteries charger charge technology that a kind of applicable electric motor car uses |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294159A (en) * | 2017-06-26 | 2017-10-24 | 超威电源有限公司 | Lead-acid accumulator magnetic force charging method |
| CN107703454A (en) * | 2017-08-24 | 2018-02-16 | 超威电源有限公司 | A kind of power lead acid battery fast charging and discharging method of testing |
| CN108282007A (en) * | 2018-02-12 | 2018-07-13 | 中航锂电技术研究院有限公司 | Communicate charging battery module current limliting strategy |
| CN109786873A (en) * | 2018-12-21 | 2019-05-21 | 安徽力普拉斯电源技术有限公司 | A kind of fast charge method of power lead storage battery |
| CN110311181A (en) * | 2019-05-31 | 2019-10-08 | 天能电池集团股份有限公司 | A kind of lead storage battery low temperature charge technology |
| CN111063953A (en) * | 2019-12-18 | 2020-04-24 | 汉腾汽车有限公司 | Method for charging direct-current charging tail end of pure electric vehicle |
| CN111682274A (en) * | 2020-06-18 | 2020-09-18 | 浙江天能电池(江苏)有限公司 | Storage battery low-temperature charging and discharging method based on temperature compensation |
| CN111740179A (en) * | 2019-12-09 | 2020-10-02 | 超威电源集团有限公司 | Charging method of storage battery |
| CN111769339A (en) * | 2019-12-09 | 2020-10-13 | 超威电源集团有限公司 | Charging method and device for prolonging cycle life of lead-acid storage battery |
| CN112490525A (en) * | 2020-11-19 | 2021-03-12 | 浙江南都电源动力股份有限公司 | Charging method for prolonging service life of lead-acid storage battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108282007A (en) * | 2018-02-12 | 2018-07-13 | 中航锂电技术研究院有限公司 | Communicate charging battery module current limliting strategy |
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| CN109786873A (en) * | 2018-12-21 | 2019-05-21 | 安徽力普拉斯电源技术有限公司 | A kind of fast charge method of power lead storage battery |
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| CN110311181A (en) * | 2019-05-31 | 2019-10-08 | 天能电池集团股份有限公司 | A kind of lead storage battery low temperature charge technology |
| CN111740179A (en) * | 2019-12-09 | 2020-10-02 | 超威电源集团有限公司 | Charging method of storage battery |
| CN111769339A (en) * | 2019-12-09 | 2020-10-13 | 超威电源集团有限公司 | Charging method and device for prolonging cycle life of lead-acid storage battery |
| CN111063953A (en) * | 2019-12-18 | 2020-04-24 | 汉腾汽车有限公司 | Method for charging direct-current charging tail end of pure electric vehicle |
| CN111682274A (en) * | 2020-06-18 | 2020-09-18 | 浙江天能电池(江苏)有限公司 | Storage battery low-temperature charging and discharging method based on temperature compensation |
| CN112490525A (en) * | 2020-11-19 | 2021-03-12 | 浙江南都电源动力股份有限公司 | Charging method for prolonging service life of lead-acid storage battery |
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