CN101752892A - Fast charging method of storage battery - Google Patents
Fast charging method of storage battery Download PDFInfo
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- CN101752892A CN101752892A CN201010110397A CN201010110397A CN101752892A CN 101752892 A CN101752892 A CN 101752892A CN 201010110397 A CN201010110397 A CN 201010110397A CN 201010110397 A CN201010110397 A CN 201010110397A CN 101752892 A CN101752892 A CN 101752892A
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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
Abstract
The invention discloses a fast charging method of a storage battery which has fast charging speed and can maintain the storage battery, which comprises the following steps: in the initial period, a high voltage which is 1.2 to 1.4 times of the rated voltage of the battery and a large current of 3 to 15C are used for charging; in the attenuation period, the voltage which is damped at an attenuation linear speed of 0.05 to 1.5 percent of the rated voltage of the battery per minute is used for charging; and in the later period, the battery is charged through a constant voltage.
Description
Technical field: the present invention relates to a kind of storage battery, relate in particular to a kind of fast charge method of storage battery.
Background technology: the charging method to storage battery has so far: constant current, multistage constant current, current limliting constant voltage and pulse current charge etc.Present fast charge method mainly contains constant voltage and pulse charge method.
Pulse charge method life period and capacity usage ratio are low, shortcomings such as charger complex structure.Use constant voltage charging method, if the constant voltage value is too low, charging current is big inadequately, elongate the charging interval; If the constant voltage value is too high, charging current is enough big, but may cause a large amount of gassings and heating that storage battery is had infringement, is difficult to take into account mutually.
The rational approach of charge in batteries shows: storage battery might be accepted maximum charging current at the charging initial stage, and acceptable then charging current decays in time.If storage battery can charge by the curve that acceptable maximum charging current and electric current were decayed with the charging interval, the shortest then available time charges into maximum capacity.
Summary of the invention: the present invention seeks to problem, a kind of quick charge force method of storage battery is provided at the prior art existence.This method can be so that the shorter charging interval charges into more relatively electric weight relatively; Gassing and temperature rise are little; The structure and the control mode of charger are simple, low price; Storage battery there are maintenance, maintenance effect, can promote the discharge capacity of storage battery.
Technical scheme of the present invention comprises to battery charges with initial period-degradation period or in the mode in initial period-degradation period-later stage.Being charged as of described initial period with the high voltage that is higher than battery rated voltage several times with greater than the large current charge of battery rated capacity several times; Described degradation period be charged as the voltage charging of decaying by certain rate of decay and decay mode with in time; Being charged as of described later stage with constant voltage charge.
The charging voltage of described initial period is 1.2-1.4 a times of battery rated voltage, and the big electric current of charging is 3-15C; The mode that the charging voltage of described degradation period decays in time is for linear or non-linear.
The constant charging voltage of described later stage charging is 1.15-1.25 a times of battery rated voltage, or for being less than or equal to the gassing voltage of battery.
Speed that the charging voltage of described degradation period decays in time and mode are respectively the 0.05-10%/min and the linearity or non-linear of battery rated voltage.
The charging voltage of described degradation period decay in time with the 0.05-1.8% of battery rated voltage/minute the rate of decay linear attenuation.
The mode that the charging voltage of described degradation period decays in time is with exponential damping.
Charging method of the present invention can make storage battery or batteries fill back the 35-60% of the capacity of emitting last time in 3-5 minute, gassing not substantially, about 10 ℃ of temperature rise; 3-4 quick charge continuously, the storage battery accumulative total capacity of emitting can reach once 2-3 times (2-3C) of full discharge capacity, can make the distance travelled of electric motor car prolong 2-3 doubly; Storage battery there are maintenance, maintenance effect, the battery discharging capacity of existing capacity attenuation of middle and later periods in life-span is obviously promoted; Storage battery there is the effect that prolongs cycle life.Therefore, method of the present invention to the popularization of motor vehicle, use and development, and have the field of meeting an urgent need and needing quick charge highly significant to some.
Description of drawings is the storage battery actual charge current of charging method of the present invention and the variation relation curve chart in voltage and charging interval.
Now also the invention will be further described in conjunction with the accompanying drawings by embodiment for embodiment.
The present invention utilizes a kind of hungry ratio juris (principle that promptly catchs at very much) that is similar to, and makes battery obtain very big capacity in the moment that begins to charge.Based on the basic theories of charge in batteries, divide two or three phases charge a battery, charge a battery with the high voltage that is higher than the some multiples of storage battery (or batteries) rated voltage with greater than the big electric current of the some multiples of battery rating at initial period.After degradation period control charging voltage decay with certain speed and mode in time; The degradation period charging finishes, and carries out the later stage charging, and the constant voltage value of later stage charging is controlled at the gassing voltage of storage battery or below the gassing voltage, to guarantee storage battery a large amount of gassings and serious heating can take place.Thereby make storage battery in the relatively shorter time, charge into more relatively electric weight, and gassing and temperature rise are little.The charging interval of common initial period, whole charging process can be controlled in 3-30 minute less than 30 seconds.
Embodiment 1: carry out the quick charge test for the 24V battery pack that is made of two common 12V17Ah valve-regulated lead-acid battery series connection with the 30V3kw quick charger.Charge a battery with the high voltage of 30V, the maximum current of 76-80A (5.4-5.8C) at charging initial period (when promptly beginning to charge); Enter the degradation period charging afterwards,, carry out the later stage charging with the constant voltage of 28.4V after the degradation period charging is finished and finish until charge in batteries in of the rate of decay linear attenuation in time of degradation period control charging voltage with 0.2V/ minute; Whole charging process 15 minutes.Result of the test sees Table 1.Storage battery actual charge current and voltage change as shown in the figure in time.A, b represent electric current common and HR type battery respectively among the figure, and c represents voltage, and unit is respectively ampere and volt.
Table 1
| Charging interval | Minute | ??3 | ??5 | ??8 | ??10 | ??15 |
| Charge into the capacity of emitting capacity/last time | ??％ | ??30～35 | ??47～52 | ??68～72 | ??70～74 | ??76～82 |
| Temperature rise | ??℃ | ??6～7 | ??9～11 | ??15～16 | ??16～17 | ??17～18 |
| The total amount of giving vent to anger | ??ml | Do not have | Substantially do not have | ??100 | ??120 | ??150 |
Above-mentioned result of the test shows: the charging interval of valve-regulated lead-acid battery can be by shortening to a few minutes in several hours; With emitting capacity the last time that can fill back 35-60% in 3-5 minute, and storage battery gassing not substantially, the about 8-12 of temperature rise ℃; With emitting capacity the last time that can fill back 70-85% in 10-15 minute, gassing is few, and temperature rise is less than 20 ℃.
Common 12V17Ah valve-regulated lead-acid battery has been carried out the quick charge cyclic test that quick charge → 2 hour rates are discharged to the continuous several times of final voltage → quick charge again.The result shows: in ambient temperature is under 15-20 ℃, can carry out quick charge 3-4 time continuously, and battery temp is no more than 55 ℃, and the 2 hour rates accumulative total capacity of emitting can reach once 2-3 times (2-3C) of full discharge capacity.This shows that the quick charge by a few minutes can make the distance travelled of electric motor car obviously prolong 2-3 doubly, can overcome the electric motor car shortcoming that distance travelled falls short of of once charging.
The present invention has also carried out the test of quick charge to the storage battery influence to common 12V17Ah valve-regulated lead-acid battery.The result shows: to the storage battery of existing capacity attenuation of middle and later periods in life-span, quick charge has maintenance, maintenance effect to storage battery, makes discharge capacity that obvious lifting be arranged.
By two groups of common 12V17Ah valve-regulated lead-acid batteries being carried out normal charge and, observing the influence of quick charge to battery cycle life with the cycle life contrast test of this method quick charge.The result shows: a group storage battery cycle life of quick charge is longer; At least illustrate that quick charge is favourable and harmless to the cycle life of storage battery.
Embodiment 2: charger and charge parameter with embodiment 1 carry out the quick charge test to the 24V battery pack that is made of the series connection of two two-forties (HR type) 12V17Ah valve-regulated lead-acid battery.In of high voltage and storage battery acceptable maximum current 90-95A (6.4-6.8C) charging of charging initial period with 30V; Charge with degradation period and the later stage charging method of embodiment 1 afterwards, finish whole charging process 15 minutes up to charging.
The battery of accepting present embodiment charging has 80% the ability of accepting quick charge that the capacity of emitting last time can be filled back in 50%, 10 minute of can fill back the capacity of emitting last time in 3 minutes.As seen, except that charging method and charger, also to accept the ability of quick charge relevant with storage battery for the effect of quick charge.
Embodiment 3: charge for 12V3Ah nickel-hydrogen accumulator group.The charging voltage of initial period is 15V, charging current 21A (7C).Degradation period is finished until charging battery charging in order to the voltage of the rate of decay linear attenuation in time of 0.2V/min.
Embodiment 4: for the charging of 12V8Ah lithium-ions battery group.Initial period is 40A (5C) with voltage charging, the charging current of 14.5V.Degradation period is afterwards finished until charging in order to the voltage charging of the speed linear attenuation in time of 0.2V/min.
Claims (6)
1. the fast charge method of a storage battery, it is characterized in that charging with initial period-degradation period or in the mode in initial period-degradation period-later stage being charged as of described initial period with the high voltage that is higher than battery rated voltage several times with greater than the large current charge of battery rated capacity several times to battery; Described degradation period be charged as the voltage charging of decaying by certain rate of decay and decay mode with in time; Being charged as of described later stage with constant voltage charge.
2. according to the fast charge method of the described storage battery of claim 1, the charging voltage that it is characterized in that described initial period is 1.2-1.4 a times of battery rated voltage, and the big electric current of charging is 3-15C; The mode that the charging voltage of described degradation period decays in time is for linear or non-linear.
3. according to the fast charge method of the described storage battery of claim 1, the constant charging voltage that it is characterized in that described later stage charging is 1.15-1.25 a times of battery rated voltage, or for being less than or equal to the gassing voltage of battery.
4. according to the fast charge method of claim 1 or 2 described storage batterys, it is characterized in that 0.05-10%/min that speed that the charging voltage of described degradation period decays in time and mode are respectively the battery rated voltage and linear or non-linear.
5. according to the fast charge method of claim 1 or 2 described storage batterys, the charging voltage that it is characterized in that described degradation period decays to the rate of decay linear attenuation with the 0.05-1.8%/min of battery rated voltage in time.
6. according to the fast charge method of claim 1 or 2 described storage batterys, it is characterized in that mode that the charging voltage of described degradation period decays in time is for exponential damping.
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| CN201010110397A CN101752892A (en) | 2010-02-10 | 2010-02-10 | Fast charging method of storage battery |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106937534A (en) * | 2014-12-16 | 2017-07-07 | 英特尔公司 | Mechanism for extending the cycle life of battery |
| CN107611510A (en) * | 2017-08-31 | 2018-01-19 | 苏州新中能源科技有限公司 | Charge control method and battery charge controller |
| US9991725B2 (en) | 2013-01-18 | 2018-06-05 | Huawei Device (Dongguan) Co., Ltd. | Charging method, mobile device, charging device, and charging system |
| CN109216829A (en) * | 2017-06-29 | 2019-01-15 | 青岛恒金源电子科技有限公司 | A kind of battery pack for being run under low temperature environment |
| CN113547955A (en) * | 2020-04-23 | 2021-10-26 | 宁德时代新能源科技股份有限公司 | Battery charging control method, device, battery management system and medium |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9991725B2 (en) | 2013-01-18 | 2018-06-05 | Huawei Device (Dongguan) Co., Ltd. | Charging method, mobile device, charging device, and charging system |
| US10236701B2 (en) | 2013-01-18 | 2019-03-19 | Huawei Device (Dongguan) Co., Ltd. | System, mobile device, and charging device |
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| US11682908B2 (en) | 2014-12-16 | 2023-06-20 | Tahoe Research, Ltd. | Mechanism for extending cycle life of a battery |
| CN109216829A (en) * | 2017-06-29 | 2019-01-15 | 青岛恒金源电子科技有限公司 | A kind of battery pack for being run under low temperature environment |
| CN107611510A (en) * | 2017-08-31 | 2018-01-19 | 苏州新中能源科技有限公司 | Charge control method and battery charge controller |
| CN107611510B (en) * | 2017-08-31 | 2020-03-17 | 苏州新中能源科技有限公司 | Charging control method and charging control device |
| CN113547955A (en) * | 2020-04-23 | 2021-10-26 | 宁德时代新能源科技股份有限公司 | Battery charging control method, device, battery management system and medium |
| WO2021212837A1 (en) * | 2020-04-23 | 2021-10-28 | 宁德时代新能源科技股份有限公司 | Battery charging control method and device, and battery management system and medium |
| US11437838B2 (en) | 2020-04-23 | 2022-09-06 | Contemporary Amperex Technology Co., Limited | Battery charging control method and apparatus, battery management system, and medium |
| CN113547955B (en) * | 2020-04-23 | 2023-06-16 | 宁德时代新能源科技股份有限公司 | Battery charging control method, device, battery management system and medium |
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Owner name: GUO ZIQIANG |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20101117 Address after: 336000 Industrial Road, Yichun economic and Technological Development Zone, Jiangxi Applicant after: Jiangxi Fuwote Battery Co., Ltd. Co-applicant after: Guo Ziqiang Address before: 336000 Industrial Road, Yichun economic and Technological Development Zone, Jiangxi Applicant before: Jiangxi Fuwote Battery Co., Ltd. |
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20100623 |