CN101552348A - Mixing accumulator system - Google Patents
Mixing accumulator system Download PDFInfo
- Publication number
- CN101552348A CN101552348A CNA2009101053630A CN200910105363A CN101552348A CN 101552348 A CN101552348 A CN 101552348A CN A2009101053630 A CNA2009101053630 A CN A2009101053630A CN 200910105363 A CN200910105363 A CN 200910105363A CN 101552348 A CN101552348 A CN 101552348A
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- China
- Prior art keywords
- lead
- ferric phosphate
- phosphate lithium
- lithium cell
- parallel
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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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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- H01M10/06—Lead-acid accumulators
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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
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a mixing accumulator system, which is composed of a lead acid accumulator (1) constituted by at least one lead acid battery and a battery pack (3) composed of at least one ferric phosphate lithium battery, wherein, the ferric phosphate lithium battery pack (3) is connected in parallel with a first balanced protection control device (4). Compared with existing products, the products of this invention can prolong the service life of the lead acid battery under adverse behavior for more than three times, and can avoid the sulfation of the lead acid battery due to undercharging. The invention not only reduces the accumulator volume and weight when various systems adopts the lead acid battery alone, to save space for storing the accumulator, but also significantly reduces the cost of single use of ferric phosphate lithium battery.
Description
Technical field
The present invention relates to storage battery, relate in particular to a kind of long service life, efficiency for charge-discharge height, volume is little and lightweight mixing accumulator system.
Background technology
Current, emerging markets such as India, Brazil, the communications industry fast development, having built a large amount of is the communication base station of stand-by power supply with the lead acid accumulator.Because these national grid instabilities, frequently have a power failure, interruption duration is long, interruption duration is irregular etc., and storage battery is frequently discharged, even overdischarge.Because after the discharge, storage battery can not get in time replenishing electricity, has quickened the positive plate aging speed, and negative plate forms sulfation.It is to cause the main reason that battery capacity decline is too fast and shorten useful life that frequent deep discharge and storage battery can not get in time replenishing electricity.Under these conditions, the life-span that is applied to the lead acid accumulator in stand-by power supply fields such as telecomm base station, UPS more and more lacks, and the frequency ratio that the terminal use changes battery improved 1～2 times in the past, caused use cost significantly to rise.
Summary of the invention
The present invention is in order to solve battery applications under bad working environments, causes the battery capacity technical problem too fast and that shorten useful life that descends, and proposes a kind of long service life, efficiency for charge-discharge height, volume is little and lightweight mixing accumulator system.
For solving the problems of the technologies described above, technical scheme of the present invention is to propose a kind of mixing accumulator system, and it is combined by at least one lead acid accumulator lead-acid batteries that constitutes and the battery pack parallel connection that at least one ferric phosphate lithium cell constitutes.The ferric phosphate lithium cell group is parallel with the first balance protection control device.
First preferred version; described ferric phosphate lithium cell is a plurality of; arbitrary connected mode by series, parallel or string and series-parallel connection connects into described ferric phosphate lithium cell group; the described first balance protection control device comprises a plurality of control units; each control unit is in parallel with single ferric phosphate lithium cell; described control unit is connected with first single-chip microcomputer, and this single-chip microcomputer is connected with the ferric phosphate lithium cell group by first contactor.
Second preferred version, described lead-acid batteries also are parallel with the second balance protection control device.
Wherein, described lead acid accumulator is a plurality of; arbitrary connected mode by series, parallel or string and series-parallel connection connects into described lead-acid batteries; the described second balance protection control device comprises a plurality of control units; each control unit is in parallel with single lead acid accumulator; described control unit is connected with second singlechip, and this single-chip microcomputer is connected with lead-acid batteries by second contactor.
The voltage of the lead-acid batteries among the present invention is lower than the voltage of described ferric phosphate lithium cell group, and the scope of the voltage difference of two Battery pack groups is 0.05～0.8V.
Described control unit comprises and single battery and the equalizing circuit that connects part and cell voltage current acquisition monitoring system.
Compare product provided by the invention with existing product lead acid accumulator is prolonged more than 3 times the useful life under bad working environments, and the sulfation that can avoid lead-acid battery to cause owing to undercharge.Storage battery volume and weight when the present invention has not only reduced various systems and adopts lead-acid battery separately, and saved the space of depositing storage battery, also reduced the cost of independent use ferric phosphate lithium cell significantly.
Description of drawings
The present invention will be described in detail below in conjunction with drawings and Examples, wherein:
Fig. 1 is the structural representation of the first embodiment of the present invention;
Fig. 2 is the structural representation of the second embodiment of the present invention;
The structural representation that Fig. 3 amplifies for Fig. 1.
Embodiment
Lead-acid battery and ferric phosphate lithium cell are the most popular storage batterys of existing market.Lead-acid battery is with a long history, cheap, uses the most extensively, but that its shortcoming is an energy density is low, and frequent overdischarge condition is short following useful life.Ferric phosphate lithium cell is a kind of novel battery that development in recent years is got up, gravimetric specific energy is three times of lead acid accumulator, volumetric specific energy is that 1.5 times of lead acid accumulator, cycle life are three times of lead-acid batteries, power density height, but shortcoming is to cost an arm and a leg, and equal capacity battery price is about four times of lead-acid battery.
According to above storage battery characteristics separately, the present invention proposes the mixing accumulator system that dissimilar storage batterys are parallel together.As shown in figures 1 and 3, preferred embodiment of the present invention, this mixing accumulator system is made of two kinds of dissimilar batteries parallel connections, and wherein one group is the batteries 1 that is made of a plurality of lead acid accumulator series connection, and the voltage of combination back battery pack is 6V or 12V; Another group is the batteries 3 that is made of the series connection of a plurality of ferric phosphate lithium cells, and combination back battery voltage is 6.4 or 12.8V.The open circuit voltage of lead-acid batteries 1 is the voltage that is lower than ferric phosphate lithium cell group 3, and the scope of the voltage difference of two group storage batteries is 0.05～0.8V.Described ferric phosphate lithium cell group 3 is parallel with the first balance protection control device 4.This first balance protection control device 4 comprises a plurality of control units 8, and each control unit is in parallel with single ferric phosphate lithium cell.Control unit 8 also is connected with first single-chip microcomputer 9, and this single-chip microcomputer is connected with ferric phosphate lithium cell group 3 by first contactor 10.Described lead-acid batteries 1 is parallel with the second balance protection control device 2.The second balance protection control device 2 comprises a plurality of control units 8, and each control unit is in parallel with single lead acid accumulator.Control unit 8 also is connected with second singlechip 11, and this single-chip microcomputer is connected with lead-acid batteries 1 by second contactor 12.Above-mentioned control unit 8 comprises and single storage battery and the equalizing circuit that connects part and cell voltage current acquisition monitoring system.Lead 5 and lead 7 constitute the outlet line of this mixing accumulator system; Lead 6 and lead 7 constitute the incoming line of this mixing accumulator system.Described battery pack 1,3 also can or be gone here and there also by a plurality of battery parallel connections, and series-parallel connection is combined into.This battery pack can also be made of single battery.Described balance protection control device 2,4 principles are identical, and its characteristics according to dissimilar storage batterys (single lead acid accumulator is different with final discharging voltage with single ferric phosphate lithium cell charging end voltage) design Control Parameter.
During the external electric of mixing accumulator system, battery pack 1 or 3 is disconnected or the ability of the external circuit of UNICOM.Because the voltage of ferric phosphate lithium cell group 3 discharge platforms is higher than lead-acid batteries 1, so just begun mainly externally to provide earlier electric energy by ferric phosphate lithium cell group 3, lead-acid batteries 1 is just participated in discharge with electric current very little and that increase gradually; When ferric phosphate lithium cell group 3 voltages drop to when identical with lead-acid batteries 1 discharge platform voltage, mainly discharged to external electric by lead-acid batteries 1 this moment, and ferric phosphate lithium cell group 3 electric currents reduce gradually.When charging, because lead-acid batteries 1 charging voltage platform is lower than ferric phosphate lithium cell group 3, so the incipient stage is to be charged as the master to lead-acid batteries 1, the very little and rising gradually of ferric phosphate lithium cell group 3 charging currents; When lead-acid batteries 1 voltage rises to charging platform voltage with ferric phosphate lithium cell group 3 when identical, this moment is to be charged as the master to ferric phosphate lithium cell group 3, because it is big that ferric phosphate lithium cell group 3 can be accepted charging current, the charge efficiency height, charging interval is short, it just can charge into the electric weight more than 95% in 1.5～4 hours, the charging current of lead-acid batteries 1 reduces gradually.Last two battery pack reach the charging saturation condition simultaneously.When the generation base station frequently has a power failure, always can guarantee that lead-acid batteries 1 can be full of electricity, and at first mainly externally provide electric energy, so can play the effect of fine protection lead-acid batteries 1 by ferric phosphate lithium cell group 3.
Described balance protection control device 2,4, it comprises a plurality of control units, can avoid battery over-discharge when discharge, can avoid battery overcharge during charging, when having charging simultaneously single battery is carried out balanced function.The present invention adopts existing ripe balance protection control device; as shown in Figure 3; when mixing accumulator system is started working; control unit 8 is gathered the voltage of each single battery in lead-acid batteries 1 and the ferric phosphate lithium cell group 3 by cell voltage current acquisition monitoring system and is flow through the electric current of battery; when arbitrary battery power discharge electric current in two battery pack surpasses maximum permission place value; corresponding single-chip microcomputer 9; 11 give corresponding contactor 10; 12 1 signals; corresponding lead-acid batteries 1 or ferric phosphate lithium cell group 3 disengage, and circuit disconnects with the protection battery pack.When arbitrary single battery voltage reaches the minimum voltage of setting in lead-acid batteries 1 and the ferric phosphate lithium cell group 3, corresponding single- chip microcomputer 9,11 is given corresponding 10,12 1 signals of contactor, corresponding lead-acid batteries 1 or ferric phosphate lithium cell group 3 disengage circuit and disconnect, and this group stops discharge.When batteries charging, when if any two single battery voltage pressure reduction surpass set point in lead-acid batteries 1 or the ferric phosphate lithium cell group 3, corresponding single- chip microcomputer 9,11 is given corresponding signal of equalizing circuit part, the battery discharge that voltage is higher, by-pass current is to the lower battery of voltage, to reach the purpose of equalizing charge between each single battery.Arbitrary single battery voltage or electric current reach upper voltage limit or the lower current that stops to charge in lead-acid batteries 1 or ferric phosphate lithium cell group 3, corresponding single- chip microcomputer 9,11 is given corresponding 10,12 1 signals of contactor, corresponding lead-acid batteries 1 or ferric phosphate lithium cell group 3 disengage battery and disconnect, and stop to this Battery pack charging.
As shown in Figure 2, another embodiment of the present invention, in mixing accumulator system, the described second balance protection control device 2 can.Because lead acid accumulator is so responsive not as the ferric phosphate lithium cell group to overcharge safety sensitiveness, so can cancel the second balance protection control device 2 for lead acid accumulator.
The mixing accumulator system that the present invention proposes can carry out series, parallel or string and series-parallel connection and use, and so that higher voltage and capacity to be provided, is particularly suitable for providing short time high power discharge UPS, car direct current origin system; Frequent solar energy, the wind energy system that discharges and recharges deeply; Other has equipment, the system of above similar demands.This mixing accumulator system can match the lead acid accumulator of low capacity, thereby the reduction system is a volume and weight owing to utilized ferric phosphate lithium cell to have that high-multiplying power discharge is good, volume is little, lightweight characteristic.
Claims (6)
1, a kind of mixing accumulator system; it is characterized in that; battery pack (3) parallel connection that the lead-acid batteries (1) that is made of at least one lead acid accumulator and at least one ferric phosphate lithium cell constitute combines, and described ferric phosphate lithium cell group (3) is parallel with the first balance protection control device (4).
2, mixing accumulator system as claimed in claim 1; it is characterized in that; described ferric phosphate lithium cell is a plurality of; arbitrary connected mode by series, parallel or string and series-parallel connection connects into described ferric phosphate lithium cell group (3); the described first balance protection control device (4) comprises a plurality of control units (8); each control unit is in parallel with single ferric phosphate lithium cell; described control unit is connected with first single-chip microcomputer, and this single-chip microcomputer is connected with described ferric phosphate lithium cell group (3) by first contactor.
3, mixing accumulator system as claimed in claim 2 is characterized in that, described lead-acid batteries (1) is parallel with the second balance protection control device (2).
4, mixing accumulator system as claimed in claim 3; it is characterized in that; described lead acid accumulator is a plurality of; arbitrary connected mode by series, parallel or string and series-parallel connection connects into described lead-acid batteries (1); the described second balance protection control device (2) comprises a plurality of control units (8); each control unit is in parallel with single lead acid accumulator; described control unit is connected with second singlechip, and this single-chip microcomputer is connected with described lead-acid batteries (1) by second contactor.
5, mixing accumulator system as claimed in claim 4 is characterized in that, the voltage of described lead-acid batteries (1) is lower than the voltage of described ferric phosphate lithium cell group (3), and the scope of the voltage difference of two battery pack is 0.05～0.8V.
6, mixing accumulator system as claimed in claim 5 is characterized in that, described control unit (8) comprises and single battery and the equalizing circuit that connects part and cell voltage current acquisition monitoring system.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101053630A CN101552348A (en) | 2009-02-13 | 2009-02-13 | Mixing accumulator system |
| CN2009102587349A CN101740803B (en) | 2009-02-13 | 2009-12-10 | Self-regulating hybrid battery of lead-acid batteries and LiFePO4 batteries |
| PCT/CN2009/075481 WO2010091583A1 (en) | 2009-02-13 | 2009-12-11 | Self-adjusting hybrid battery composed of lead acid batteries and lithium iron phosphate batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101053630A CN101552348A (en) | 2009-02-13 | 2009-02-13 | Mixing accumulator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101552348A true CN101552348A (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101053630A Pending CN101552348A (en) | 2009-02-13 | 2009-02-13 | Mixing accumulator system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101552348A (en) |
| WO (1) | WO2010091583A1 (en) |
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| WO2010091583A1 (en) * | 2009-02-13 | 2010-08-19 | 深圳市雄韬电源科技有限公司 | Self-adjusting hybrid battery composed of lead acid batteries and lithium iron phosphate batteries |
| CN101826644A (en) * | 2010-02-11 | 2010-09-08 | 中国科学院上海微系统与信息技术研究所 | Lead-acid storage battery system with long service life and method for using same |
| CN101841175A (en) * | 2010-03-12 | 2010-09-22 | 中国科学院上海微系统与信息技术研究所 | Composite power source |
| CN101908662A (en) * | 2010-07-05 | 2010-12-08 | 河南联合新能源有限公司 | Electromobile combination power battery |
| CN102024982A (en) * | 2009-12-04 | 2011-04-20 | 浙江绿源电动车有限公司 | Mixed battery device |
| WO2011114349A2 (en) * | 2010-03-15 | 2011-09-22 | Mahindra Reva Electric Vehicles Pvt. Ltd | Hybrid battery pack |
| CN102263424A (en) * | 2010-05-27 | 2011-11-30 | 方正强 | Battery pack device |
| CN102340041A (en) * | 2010-07-16 | 2012-02-01 | 汉达精密电子(昆山)有限公司 | Battery pack |
| CN102338340A (en) * | 2010-07-22 | 2012-02-01 | 柯国平 | Solar street lamp and storage battery group for same |
| WO2012012929A1 (en) * | 2010-07-27 | 2012-02-02 | 皆盈绿电池股份有限公司 | Battery structure |
| CN103033753A (en) * | 2011-10-09 | 2013-04-10 | 深圳市海盈科技有限公司 | Method of quickly judging hopower maintaining rate (SOC) of lithium iron phosphate battery (pack) |
| CN103187583A (en) * | 2011-12-31 | 2013-07-03 | 深圳市雄韬电源科技股份有限公司 | Hybrid battery power supply system with self-regulation capability and manufacturing method thereof |
| CN103413980A (en) * | 2013-07-04 | 2013-11-27 | 深圳市雄韬电源科技股份有限公司 | Intelligent hybrid battery management system |
| CN104953660A (en) * | 2015-06-20 | 2015-09-30 | 江苏博强新能源科技有限公司 | Battery hybrid application system for communication base station |
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| WO2010091583A1 (en) * | 2009-02-13 | 2010-08-19 | 深圳市雄韬电源科技有限公司 | Self-adjusting hybrid battery composed of lead acid batteries and lithium iron phosphate batteries |
| CN102024982A (en) * | 2009-12-04 | 2011-04-20 | 浙江绿源电动车有限公司 | Mixed battery device |
| CN102024982B (en) * | 2009-12-04 | 2014-04-16 | 浙江绿源电动车有限公司 | Mixed battery device |
| CN101826644A (en) * | 2010-02-11 | 2010-09-08 | 中国科学院上海微系统与信息技术研究所 | Lead-acid storage battery system with long service life and method for using same |
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| CN103033753B (en) * | 2011-10-09 | 2016-11-30 | 深圳市海盈科技有限公司 | One quickly judges ferric phosphate lithium cell or the method for set of cells spray charging precipitator (SoC) |
| CN103187583A (en) * | 2011-12-31 | 2013-07-03 | 深圳市雄韬电源科技股份有限公司 | Hybrid battery power supply system with self-regulation capability and manufacturing method thereof |
| CN103413980A (en) * | 2013-07-04 | 2013-11-27 | 深圳市雄韬电源科技股份有限公司 | Intelligent hybrid battery management system |
| CN110151207A (en) * | 2014-04-17 | 2019-08-23 | 深圳迈瑞生物医疗电子股份有限公司 | High frequency medical diagnostic X-ray machine and power supply unit |
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| CN105024419A (en) * | 2014-04-17 | 2015-11-04 | 深圳迈瑞生物医疗电子股份有限公司 | Mobile medical equipment and power supply device used for same |
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| WO2010091583A1 (en) | 2010-08-19 |
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Open date: 20091007 |