CN104362691A - Charge-discharge control system for storage battery - Google Patents
Charge-discharge control system for storage battery Download PDFInfo
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- CN104362691A CN104362691A CN201410607340.0A CN201410607340A CN104362691A CN 104362691 A CN104362691 A CN 104362691A CN 201410607340 A CN201410607340 A CN 201410607340A CN 104362691 A CN104362691 A CN 104362691A
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- storage battery
- electrolyte
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- voltage
- battery
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention is applicable to the field of storage battery charge-discharge control and provides a charge-discharge control system for a storage battery. The charge-discharge control system is characterized in that a plasma exchanging film is disposed inside the storage battery to separate the interior of the storage battery into two parts, one part is filled with electrolyte, a water outlet is formed in the bottom of the other part, and the plasma exchanging film allows water molecules to pass and does not allow sulfate ions to pass; a partition is parallel with the plasma exchanging film and contacts with the same, and one end of the partition is connected with a linear motor; a voltage measuring unit is used for transmitting measured storage battery voltage to a controller, and the controller controls the linear motor to control the partition to move up and down according to the voltage of the storage battery so as to change the contact area of the electrolyte and the plasma exchanging film. The charge-discharge control system has the advantages that the contact area of the electrolyte and the plasma exchanging film is changed by measuring the output voltage change of the storage battery, so that the solution concentration of the electrolyte is adjusted, and the electrochemical reaction inside the storage battery is completed sufficiently to produce maximum power supply quantity; the charge-discharge control system is especially suitable for the storage batteries for sailing, aviation and mining fields.
Description
Technical field
The invention belongs to accumulator cell charging and discharging control field, particularly relate to a kind of charge-discharge control system of storage battery.
Background technology
Storage battery, as a kind of chemical energy source of dependable performance, the industrial circle such as to be evened out at electric power system, communications and transportation, portable electronic and is widely used.Such as in field of power, because it has low, the energy ecology advantages of higher of discharge, automobile having more and more very important effect, as powered to engine when engine start, is the power supply of igniting system; Generator voltage lower (overload) or (assist) when not generating electricity is powered to phase power consumption equipment; What store generator crosses complementary energy, and Surge suppression function etc.
Because of its important function, develop largely so Vehicular accumulator cell has had, such as occurred lead acid accumulator, ni-mh (cadmium) battery, lithium battery flying wheel battery, fuel cell, solar cell etc.But these batteries have a common feature: the chemical reaction of discharge and recharge completes completely under state naturally, and obviously this is difficult to maximize the power supply potential of getting profit with battery.Maximum a kind of on-vehicle batteries is used now, so below all for lead acid accumulator because lead acid accumulator remains.Suppose the PbO in car battery
2quality is that 1Kg then has following result of calculation:
If reaction can be carried out completely, namely all PbO
2all participate in reaction, so have:
N(e)＝25.1707*10
26*2＝50.3414*10
26。
Will provide in whole course of reaction: Q=50.3414*10
26* 1.602176*10
-19=80.6558*10
7the quantity of electric charge of c.So whole electrochemical reaction can provide:
This is because the electrochemical reaction process of storage battery, with chemical reaction: Pb+PbO
2+ 2H
2sO
4=2PbSO
4+ 2H
2the carrying out of O, consumes H
2sO
4generate H simultaneously
2o, the concentration of electrolyte can reduce gradually, and when the concentration of solution drops to a certain degree, electrochemical reaction will no longer be carried out, and it is just no longer lasting that end reaction has only carried out sub-fraction.
Concrete, within the specific limits, concentration of electrolyte is larger, and in plate active material, sulfuric acid concentration is larger.Active material utilization is high, and capacity also can increase.But concentration of electrolyte is too high, solution resistance increases, and viscosity also increases, and seepage velocity is low, and self discharge is simultaneously accelerated, and battery capacity declines on the contrary.Concentration of electrolyte is too high, and dividing plate corrosion also corresponding quickening, can shorten the useful life of storage battery.Under being operated in chilling temperatures, concentration of electrolyte answers height-point, and under the temperature of sweltering heat, concentration of electrolyte can be lower.So have an optimized concentration of electrolyte for the storage battery of different purposes.Under this optimized concentration of electrolyte, the combination property of storage battery is best.
Allow storage battery chemical reaction under the reaction condition of optimum, continue to carry out making it produce net capability tool all the time have very important significance, especially for navigation, aviation and mining field, can not obtain charge condition in time, after a charging complete of storage battery, discharge capability is the bigger the better.
Summary of the invention
The object of the embodiment of the present invention is the charge-discharge control system providing a kind of storage battery, to solve the problem that in prior art storage battery, electrochemical reaction is insufficient.
The embodiment of the present invention is achieved in that a kind of charge-discharge control system of storage battery, and described system comprises: voltage measurement unit, controller, linear electric motors, dividing plate and plasma exchange membrane;
Described plasma exchange membrane is arranged at described internal storage battery and described internal storage battery is divided into both sides, side is electrolyte, opposite side is provided with delivery port in the bottom of described storage battery, and described plasma exchange membrane allows hydrone to pass, do not allow sulfate ion through;
Described dividing plate and described plasma exchange membrane be arranged in parallel and contact with each other, and one end of described dividing plate connects described linear electric motors;
Described voltage measurement unit is used for sending the battery tension of measurement to described controller, described controller controls described linear electric motors according to the battery tension value after described dividing potential drop and controls described dividing plate and move up and down, and changes the contact area of described electrolyte and described plasma exchange membrane.
The beneficial effect of the charge-discharge control system of a kind of storage battery that the embodiment of the present invention provides comprises:
The contact area of electrolyte and plasma exchange membrane is changed by the output voltage measuring storage battery, thus the penetration speed of hydrone in change electrolyte, make it consistent with the electrochemical reaction rates of the electrolyte inside of storage battery, regulate the solution concentration of electrolyte, make the output voltage of storage battery maximum, fully complete the electrochemical reaction of internal storage battery, the power supply capacity of storage battery can be improved to greatest extent, make the raising of its power supply capacity decades of times, and the supply power voltage of storage battery and supply current are not had an impact, be particularly useful for navigation, the Battery charge controller in aviation and mining field,
Storage battery user demand according to reality arranges maximum voltage range, in this maximum voltage range, whether control the running of motor according to the storage battery power supply voltage measured, and reduces the energy consumption of motor while making storage battery meet power demands as far as possible.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the charge-discharge control system of storage battery provided by the invention;
Fig. 2 is the structural representation that the charge-discharge control system of storage battery provided by the invention applies to storage battery;
Fig. 3 is the structural representation of the charge-discharge control system of the storage battery that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In order to technical solutions according to the invention are described, be described below by specific embodiment.
Be respectively the structural representation that the structural representation of the charge-discharge control system of storage battery provided by the invention and charge-discharge control system apply to storage battery as depicted in figs. 1 and 2, from Fig. 1 and Fig. 2, described system comprises:
Voltage measurement unit, controller, linear electric motors, dividing plate and plasma exchange membrane.
Plasma exchange membrane is arranged at internal storage battery and internal storage battery is divided into both sides, and side is electrolyte, and opposite side is provided with delivery port in the bottom of storage battery, these amberplexes allow hydrone pass, and do not allow sulfate ion through.
Dividing plate and plasma exchange membrane be arranged in parallel and contact with each other, and one end of dividing plate connects motor.
Voltage measurement unit is used for sending the battery tension of measurement to controller, and controller controls linear electric motors control dividing plate according to the battery tension value after this dividing potential drop and moves up and down, and changes the contact area of electrolyte and plasma exchange membrane.
The output voltage of storage battery can change along with the change of concentration of electrolyte solutions, the charge-discharge control system of a kind of storage battery provided by the invention, the contact area of electrolyte and plasma exchange membrane is changed by the output voltage measuring storage battery, thus the penetration speed of hydrone in change electrolyte, make it consistent with the electrochemical reaction rates of the electrolyte inside of storage battery, regulate the solution concentration of electrolyte, make the output voltage of storage battery maximum, fully complete the electrochemical reaction of internal storage battery, the power supply capacity of storage battery can be improved to greatest extent, make the raising of its power supply capacity decades of times, and the supply power voltage of storage battery and supply current are not had an impact, be particularly useful for navigation, the Battery charge controller in aviation and mining field.
Preferably, maximum voltage range can be set according to the practice situation of each storage battery.
Under the initial condition that charge in batteries completes, dividing plate is arranged at bottom, and electrolyte does not contact completely with plasma exchange membrane; In battery discharging process, when the battery tension measured is less than the maximum voltage range of this storage battery, Electric Machine Control dividing plate moves upward, and increases the penetration speed of hydrone in electrolyte, and the solution concentration increasing electrolyte makes its supply power voltage increase; When storage battery stops electric discharge, in electrolyte hydrone continue through process in, the solution concentration of electrolyte increases its supply power voltage rear and also increases, when the supply power voltage of storage battery increases to the maximum voltage range being greater than this storage battery, Electric Machine Control dividing plate moves downward, reduce the penetration speed of hydrone in electrolyte gradually, when the storage battery power supply voltage drop of measuring is low to moderate in maximum voltage range, Electric Machine Control partition movement is to stopping afterwards bottom.
Storage battery user demand according to reality arranges maximum voltage range, reduces the energy consumption of motor while making storage battery meet power demands as far as possible.
Further, it is the structural representation of the embodiment of the charge-discharge control system of storage battery provided by the invention as Fig. 3, as shown in Figure 3, voltage measurement unit comprises potential-divider network and high-precision AD converter, the output voltage (about 12V) of storage battery is transformed into the measuring range interior (about 5V) of high-precision AD converter by potential-divider network, and high-precision AD converter sends control unit to after being converted to digital signal to the magnitude of voltage analog signal measured.
Be provided with driver module between controller and linear electric motors, controller controls driver module and controls linear electric motors motion.
Further, in the charging process after battery discharging completes, the charging progress according to storage battery adds water to internal storage battery.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a charge-discharge control system for storage battery, is characterized in that, described system comprises: voltage measurement unit, controller, linear electric motors, dividing plate and plasma exchange membrane;
Described plasma exchange membrane is arranged at described internal storage battery and described internal storage battery is divided into both sides, side is electrolyte, opposite side is provided with delivery port in the bottom of described storage battery, and described plasma exchange membrane allows hydrone to pass, do not allow sulfate ion through;
Described dividing plate and described plasma exchange membrane be arranged in parallel and contact with each other, and one end of described dividing plate connects described linear electric motors;
Described voltage measurement unit is used for sending the battery tension of measurement to described controller, described controller controls described linear electric motors according to described battery tension value and controls described dividing plate and move up and down, and changes the contact area of described electrolyte and described plasma exchange membrane.
2. the system as claimed in claim 1, is characterized in that, the practice situation according to described storage battery arranges maximum voltage range;
Under the initial condition that described charge in batteries completes, described dividing plate is arranged at bottom, and described electrolyte does not contact completely with described plasma exchange membrane;
In described battery discharging process, when the battery tension value measured is less than the maximum voltage range of described storage battery, Electric Machine Control dividing plate moves upward, and increases the penetration speed of hydrone in electrolyte, and the solution concentration increasing electrolyte makes its supply power voltage increase;
When described storage battery stops electric discharge, in described electrolyte hydrone continue through process in, the solution concentration of described electrolyte increases, when the supply power voltage of described storage battery increases to the maximum voltage range being greater than described storage battery, described linear electric motors control described dividing plate and move downward, reduce the penetration speed of hydrone in described electrolyte gradually, when the storage battery power supply voltage drop of described measurement is low to moderate in described maximum voltage range, described linear electric motors control described partition movement to stopping afterwards bottom.
3. the system as claimed in claim 1, it is characterized in that, described voltage measurement unit comprises potential-divider network and high-precision AD converter, the output voltage of described storage battery is transformed in the measuring range of described high-precision AD converter by described potential-divider network, and described high-precision AD converter sends described control unit to after being converted to digital signal to the magnitude of voltage analog signal measured.
4. the system as claimed in claim 1, is characterized in that, is provided with driver module between described controller and described linear electric motors, and described controller controls described driver module and controls the motion of described linear electric motors.
5. the system as claimed in claim 1, is characterized in that, in the charging process after described battery discharging completes, the charging progress according to described storage battery adds water to internal storage battery.
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|---|---|---|---|
| CN201410607340.0A CN104362691A (en) | 2014-10-31 | 2014-10-31 | Charge-discharge control system for storage battery |
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| CN201410607340.0A CN104362691A (en) | 2014-10-31 | 2014-10-31 | Charge-discharge control system for storage battery |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060141362A1 (en) * | 2001-10-12 | 2006-06-29 | Matsushita Electric Industrial Co., Ltd. | Electrochemical device including electrolyte |
| CN201004477Y (en) * | 2006-09-26 | 2008-01-09 | 动能科技股份有限公司 | High capacitance and small volume secondary battery |
| JP2009016172A (en) * | 2007-07-04 | 2009-01-22 | Nissan Motor Co Ltd | Membrane electrode conjugant and its manufacturing method |
| CN102820447A (en) * | 2011-06-07 | 2012-12-12 | 现代自动车株式会社 | Lithium-sulfur battery with polysulfide confining layer |
| WO2014099153A1 (en) * | 2012-12-19 | 2014-06-26 | Ceramatec, Inc. | Degradation protection of solid alkali ion conductive electrolyte membrane |
-
2014
- 2014-10-31 CN CN201410607340.0A patent/CN104362691A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060141362A1 (en) * | 2001-10-12 | 2006-06-29 | Matsushita Electric Industrial Co., Ltd. | Electrochemical device including electrolyte |
| CN201004477Y (en) * | 2006-09-26 | 2008-01-09 | 动能科技股份有限公司 | High capacitance and small volume secondary battery |
| JP2009016172A (en) * | 2007-07-04 | 2009-01-22 | Nissan Motor Co Ltd | Membrane electrode conjugant and its manufacturing method |
| CN102820447A (en) * | 2011-06-07 | 2012-12-12 | 现代自动车株式会社 | Lithium-sulfur battery with polysulfide confining layer |
| WO2014099153A1 (en) * | 2012-12-19 | 2014-06-26 | Ceramatec, Inc. | Degradation protection of solid alkali ion conductive electrolyte membrane |
Non-Patent Citations (2)
| Title |
|---|
| MARIA SKYLLAS-KAZACOS，LEESEAN GOH: "《Modeling of vanadium ion diffusion across the ion exchange membrane in the vanadium redox battery》", 《JOURNAL OF MEMBRANE SCIENCE》 * |
| 陆名彰: "《快速准确地调整铅酸蓄电池电解液密度的方法》", 《煤矿机械》 * |
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Effective date of abandoning: 20170208 |
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