CN105048531A - Forming of battery cell - Google Patents
Forming of battery cell Download PDFInfo
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- CN105048531A CN105048531A CN201510290747.XA CN201510290747A CN105048531A CN 105048531 A CN105048531 A CN 105048531A CN 201510290747 A CN201510290747 A CN 201510290747A CN 105048531 A CN105048531 A CN 105048531A
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- Prior art keywords
- battery cell
- electronic circuit
- shaping
- shaped
- current
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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
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
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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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
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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
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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
- H01M10/446—Initial charging measures
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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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to forming of a battery cell. The present invention relates to a device for forming a battery cell (18) by utilizing a forming output stage with a power electronic circuit (11) or a forming electronic circuit (10). The forming output stage or the forming electronic circuit (10) provide an adjusted output voltage or an adjusted ouput current for forming the battery cell (18) to be formed in a manner of series connection or parallel connection. The battery cell includes an integrated power electronic circuit with a power semiconductor, at least one of the power semiconductor influences on a forming current of the battery cell with the integrated power electronic circuit to be formed.
Description
Technical field
The present invention relates to the shaping of battery cell.
Background technology
US6291972B1 discloses a kind of circuit for making lithium ion battery Battery pack be shaped.Also disclose the battery cell of parallel connection, it controls with identical voltage's distribiuting.Each battery cell carrys out Absorption Current according to the health status (SOH=health status) of its individuality.Circuit element is arranged in the outside of battery cell.
The theme of DE102009035466A1 is the shaping of single battery.Propose a kind of for making the single battery of battery pack, the method for especially lithium ion single battery shaping.The method comprises at least one charging process given in advance for the excited inside electrochemical process at single battery and discharge process given in advance.Single battery is electrically connected in series or electrical connection in parallel in cell complexes, and is jointly shaped.
EP2424069A2 relates to a kind of equipment for making lithium ion battery be shaped.According to this solution, propose a kind of formation system, this formation system is included in the batteries management system of battery pack disposed outside.Each lithium ion battery can be connected with this batteries management system.
DE102004060359A1 relates to a kind of charging and regulates facility and a kind of for making the method for batteries charging.Portion of electrical current is provided by DC/DC-converter and homophase adjuster.Control unit is according to the charging current control DC/DC-converter of the reality of battery pack and homophase adjuster.Utilize the method that proposes, can Loss reducing power when chip area reduces, and then the useful life of the battery pack that will charge can be extended.Charging regulates facility to be surrounded by the housing of instrument or to be implemented as outside instrument.
When manufacturing lithium ion battery Battery pack, forming process particular importance.Utilize forming process, each single battery cell is activated on the one hand, and by the structure defined of preaging process implementation SEI layer (SEI=SolidElectrolyteInterface solid electrolyte interface) and should stablize on the other hand.SEI layer is the corrosion layer be configured in lithium ion battery Battery pack on anode.This corrosion layer plays the aging characteristics determining battery cell fatefully.In the manufacture method of the current battery cell for large battery (such as there is the capacity of 60Ah), be shaped and preaging process lasts 10 days to 14 days.According in the shaping of mode up to the present, use power to put level eventually, these power put level or eventually as linear regulator work, or work as the output stage (Endstufe) of pressing clock of the Current adjustment in half-bridge circuit.Up to the present, utilize power electronic circuit to carry out the shaping of lithium ion battery Battery pack respectively, this power electronic circuit is assigned to the battery that will be shaped exactly.This means, not using parallel circuits and/or the series circuit of battery cell when being shaped.This also means, must use the single power electronic circuit unit of very many costlinesses in forming process.For this reason, at present when manufacturing lithium ion battery Battery pack, shaping expends most and the highest job step of cost.
Summary of the invention
According to the present invention, the device that the battery cell proposing to be used for making to have power electronic circuit by the shaping electronic circuit cell or shaping output stage with power electronic circuit is shaped, adjustable output voltage that this device is provided for battery cell is shaped or adjustable output current, wherein battery cell has the integrated power electronic circuit with integrated power semiconductor, and at least one in these power semiconductors has an impact to the forming current of the battery cell that will be shaped.
By the solution proposed according to the present invention, considerably reduce expending for the power electronic circuit in shaping output stage or shaping electronic circuit cell.In addition, there is following possibility, namely with very high precision, namely particularly occur alternating current component in with the very little bias adjustment of its rated value in order to the required forming current that is shaped, determine that described alternating current component may appear in ground when using the output stage by clock by principle.
Propose according to the present invention in the other design of the device that makes battery cell be shaped, be suitable for running as homophase adjuster or linear regulator in effective operation at least one integrated power semiconductor that the forming current of the battery cell that will be shaped has an impact.
Propose according to the present invention in the other design of the device that makes battery cell be shaped, power electronic circuit in the battery cell being integrated in and will being shaped is provided, makes the power semiconductor of this power electronic circuit be designed to transistor or field-effect transistor (MOSFET).
The power semiconductor be configured in the integrated power electronic circuit of battery cell is following power semiconductor, the order of magnitude of its voltage drop between 1mV and 10mV.Be configured in the power electronic circuit in battery cell or may be implemented as the half-bridge circuit with two power semiconductors that can switch and two passive hold-off diodes, be implemented as the full-bridge circuit comprising two half-bridges in its side, these two half-bridges comprise again two power semiconductors that can turn on and off and two passive hold-off diodes respectively.Implement flexible program with two kinds can realize having an impact to forming current, the battery cell that be shaped with integrated power electronic circuit loads with this forming current.
In addition, the present invention relates to the method for utilizing the device for making battery cell be shaped to make with the battery cell shaping of integrated power electronic circuit, wherein, in a kind of method flexible program, propose in parallel shaping, and in a kind of method flexible program that can alternatively perform, propose battery cell be shaped with series circuit.
According to the method that the device for utilizing the battery cell making to have integrated power electronic circuit to be shaped makes battery cell be shaped, live through method step below:
A) shaping output stage or shaping electronic circuit cell will provide adjusted output voltage U with the battery cell of parallel circuits shaping for multiple,
B) when positive forming current, the output voltage U of shaping output stage or shaping electronic circuit cell has the value higher than the open circuit voltage OCV (OpenCircuitVoltage) of the battery cell of all parallel connection shapings, the described battery cell wanting parallel connection to be shaped is current has maximum charged state or maximum open circuit voltage OCV, or
C) when negative forming current, the output voltage U of shaping output stage or shaping electronic circuit cell has the value lower than the open circuit voltage OCV (OpenCircuitVoltage) of the battery cell of all parallel connection shapings, the described battery cell wanting parallel connection to be shaped is current has minimum charged state or minimum open circuit voltage OCV (OpenCircuitVoltage)
D) wherein, the battery cell that be shaped respectively with integrated power electronic circuit regulates its forming current individually.
In the other design of the method for making battery cell parallel connection shaping proposed according to the present invention, undertaken by least one communication interface of battery cell, by relative to battery cell at the shaping output stage of disposed outside or the shaping electronic circuit cell rated value for forming current given in advance.In the parallel connection of battery cell is shaped, at least one the integrated power semiconductor being integrated into the power electronic circuit in battery cell preferably runs as homophase adjuster or linear regulator in effective operation, wherein, the forming current of corresponding battery cell does not have alternating current component.According to the favourable improvement project of the method for making battery cell parallel connection be shaped, there is the battery cell of integrated power electronic circuit or measure battery cell electric current voluntarily, or obtaining corresponding information about battery cell electric current via at least one to the communication interface with the battery cell of integrated power electronic circuit that will be shaped from shaping output stage.
According to the other enforcement flexible program for the method that utilizes the device making battery cell be shaped to make battery cell be shaped proposed according to the present invention, live through method step below:
A) shaping output stage or shaping electronic circuit cell provide adjusted output current with the battery cell that will be shaped of series circuit connection each other for multiple,
B) by being integrated in the power electronic circuit in corresponding ion battery cell, affecting individually relative to the output current of shaping output stage or shaping electronic circuit cell, especially reducing forming current,
C) when positive forming current (charging current), the output current of shaping output stage or shaping electronic circuit cell has the maximum for the electric current expected with the shaping of the battery cell be connected in series, or
D) when negative forming current, the output current of shaping output stage or shaping electronic circuit cell has the minimum value of the current value expected the shaping for battery cell.
According to the method for making battery cell series connection be shaped, when use to be integrated in the housing of battery cell or on power electronic circuit form the adjustment of electric current, make each battery cell itself regulate its forming current in the specific mode of battery cell.Compared with the electric current provided with shaping output stage or shaping electronic circuit cell, the forming current flowing through battery cell can be reduced.This carries out by the following, at least one in the semiconductor switch of namely integrated power electronic circuit is run in effective region as linear regulator or homophase adjuster, and generates the electric current with the current parallel of the electrochemical part flowing through the battery cell that will be shaped.
The given in advance of rated value for forming current can notify battery cell by the shaping output stage of outside or shaping electronic circuit cell via at least one communication interface, utilizes described forming current that battery cell is shaped.
Invention advantage
What propose according to the present invention considerably reduces expending for the power electronic circuit in building mortion for the device making battery cell be shaped, and this device has the shaping output stage or shaping electronic circuit cell and at least one battery cell that will be shaped that comprise power electronic circuit.Can with very high precision, particularly occur alternating current component in the bias adjustment forming current very little with its rated value, the series connection of the battery cell that be shaped is shaped or in parallel shaping loads with this forming current.Press in the forming process of the output stage of clock in utilization, there will be alternating current component with determining by principle, but avoided by the solution proposed according to the present invention.Utilize the solution proposed, can connect on multiple battery cell and form process in parallel simultaneously.
Because provide adjusted output voltage according to the solution shaping output stage proposed according to the present invention, so be less for providing the expending of this output voltage, make the minimizing relative to being obtained cost by the known solution of prior art.If the parallel connection carrying out battery cell is shaped, so shaping output stage or shaping electronic circuit cell want the battery cell be shaped in parallel to provide output voltage for multiple.Thus, the quantity being used to shaping output stage or the shaping electronic circuit cell be shaped can obviously reduce.To this, use be integrated on the battery cell that will be shaped or in power electronic circuit, for regulating forming current.Go wrong when the parallel connection of battery cell is shaped in one or more battery cell that will be shaped, such as charging and/or the battery cell that do not discharge can electronically uncouplings from forming process, and the forming process for " good battery " can be proceeded when significantly interrupting.
By the solution proposed according to the present invention in manufacturing process in parallel, itself its corresponding forming current of adjustment each in battery cell.Can prevent thus, the deviation that may cause due to manufacture fluctuation and/or manufacturing tolerance in the internal resistance of battery cell causes different forming current.Otherwise, when the battery cell that will be shaped directly be connected in parallel when not using inner electronic circuit intermediate DC circuit is run time, such deviation of forming current may be there is.
By guaranteeing to the transmission of the battery cell that will be shaped respectively for the given in advance of the rated value of forming current with for the rated value of forming current in manufacturing process in parallel, battery cell all synchronously performs identical shaping flow process, makes such as all batteries Battery pack adjust to identical charging current simultaneously.
If performing shaping replacement scheme, namely making battery cell be shaped according to the method for making battery cell series connection or series connection be shaped, so with compared with the known solution of prior art, the quantity of shaping output stage or shaping electronic circuit cell significantly can be reduced equally.When battery cell is shaped with series circuit, shaping output stage provides the forming current regulated by current regulation loop.Power electronic circuit designs for higher voltage and then for higher power because the power electronic circuit of shaping output stage or shaping electronic circuit cell relative to the battery cell voltage sum be connected in series to run forming current.When use to be integrated in the housing of battery cell and/or on power electronic circuit carry out the adjustment of corresponding forming current, make each battery itself regulate its forming current in the specific mode of battery cell.Electric current through battery cell is provided compared with the electric current that can provide with shaping output stage or shaping electronic circuit cell in the following manner, namely at least one in power semiconductor is run in effective region as linear regulator, and generates the electric current with each current parallel of the electrochemical part flowing through battery cell.Thus, can prevent in an advantageous manner, the deviation that may cause due to manufacture fluctuation and/or manufacturing tolerance in the capability value of battery cell causes the different temporal change of cell voltage.If the battery cell be shaped when not using inner electronic circuit in the mode be connected in series directly with same current charges or electric discharge, just there will be battery cell voltage such deviation to each other.
Even if in the method replacement scheme of the series circuit be shaped making battery cell, also being undertaken by least one communication interface to battery cell, is the battery cell rated value for forming current given in advance that will be shaped by the shaping electronic circuit of outside or shaping output stage or shaping electronic circuit cell.Guarantee thus, battery cell all synchronously performs identical shaping flow process, makes such as all batteries Battery pack have identical temporal change in voltage simultaneously.Even if connect making battery cell in the method be shaped, when going wrong when the shaping of the battery cell be connected in series, described battery cell can self electronically be separated from shaping flow process, and its mode is: by the power semiconductor of the integrated electronic circuit of battery cell respectively with one or more involved battery cell bypass be connected.Thus, can realize, " good battery " can continue to be shaped when the flow process that is not shaped is interrupted.
Accompanying drawing explanation
In more detail the present invention is described by accompanying drawing below.Wherein:
Fig. 1 illustrates the single shaping by shaping output stage or shaping electronic circuit cell of the battery cell with power electronic circuit;
Fig. 2 illustrates that the battery cell with integrated power electronic circuit is shaped by the parallel connection of shaping output stage or shaping electronic circuit cell;
Fig. 3 illustrates forming current path in the forming process of the battery cell with the integrated power electronic circuit being embodied as half-bridge circuit and active power semiconductor;
Fig. 4 illustrates the power semiconductor of the forming current path occurred in the shaping of the battery cell with the integrated power electronic circuit comprising the full-bridge circuit be made up of two half-bridges and activation;
Fig. 5 illustrates the series circuit of the battery cell with integrated power electronic circuit, and described battery cell is shaped by shaping output stage or shaping electronic circuit cell;
Fig. 6 illustrates the current path occurred when the forming current of the battery cell with the power electronic circuit as half-bridge circuit will reduce;
Fig. 7 illustrates the current path occurred when the forming current of the battery cell with integrated power electronic circuit reduces, and this power electronic circuit comprises the bridge circuit be made up of two half-bridges with power semiconductor and hold-off diode in this case.
Embodiment
Fig. 1 illustrates the single shaping by shaping output stage or shaping electronic circuit cell of the battery cell with integrated power electronic circuit.
Learnt by Fig. 1, shaping output stage or the shaping electronic circuit cell 10 with power electronic circuit 11 and filtering capacitor 12 define intermediate DC circuit 16.The power supply in intermediate DC circuit 16 is proceeded to by joint Terminal 14.The output voltage U that shaping output stage or shaping electronic circuit cell 10 provide transmits to the battery cell 18 that will be shaped with integrated power electronic circuit.In situation in FIG, the battery cell 18 with integrated power electronic circuit is shaped in the scope of single shaping 17 by shaping output stage or shaping electronic circuit cell 10.
When use to be integrated in battery cell 18 or on power electronic circuit form the adjustment of electric current, also see the description according to Fig. 3 and Fig. 4.
Fig. 2 illustrates the device for making battery cell be shaped proposed according to the present invention, in this as the device making the battery cell parallel connection with integrated power electronic circuit be shaped.
Figure 2 illustrates the device be shaped for the battery cell 18 making to have integrated power electronic circuit proposed according to the present invention, wherein, multiple battery cells 18 with integrated power electronic circuit illustrate with parallel circuits 19.Be similar to the single shaping of the battery cell 18 with integrated power electronic circuit shown in Fig. 1, shaping output stage or the shaping electronic circuit cell 10 with power electronic circuit 11 load with supply power voltage on joint Terminal 14.Shaping output stage or shaping electronic circuit cell 10 comprise the filtering capacitor 12 illustrated in FIG, and provide adjusted output voltage at outlet side in intermediate DC circuit 16, the battery cell 18 with integrated power electronic circuit be arranged in parallel circuits 19 utilizes this output voltage to be shaped.When positive forming current (charging current), the output voltage that intermediate DC circuit 16 or shaping output stage or shaping electronic circuit cell 10 provide has the value slightly higher than the current open circuit voltage OCV (OpenCircuitVoltage) with the battery cell 18 of the shaping all in parallel of maximum charged state or open circuit voltage OCV (OpenCircuitVoltage).When negative forming current (discharging current), the output voltage provided by intermediate DC circuit 16 has slightly low value with current all wanting with minimum charged state or minimum open circuit voltage OCV (OpenCircuitVoltage) compared with the open circuit voltage of the battery cell be shaped in parallel.
In being shaped according to the parallel connection of the description in Fig. 2, when use to be integrated in the housing of the battery cell 18 that will be shaped and/or on power electronic circuit form the adjustment of electric current, make each battery cell 18 itself regulate its corresponding forming current voluntarily.Thus, can prevent in an advantageous manner, the deviation that may cause due to manufacture fluctuation and manufacturing tolerance in the internal resistance of battery cell 18 causes different forming current.When the battery cell 18 that will be shaped runs with being directly connected in parallel when not using inner power electronic circuit in the intermediate DC circuit 16 of shaping output stage or shaping electronic circuit cell 10, this deviation about forming current will be there is.
Each in the battery cell 18 with integrated power electronic circuit is provided with at least one communication interface 82, undertaken by this communication interface, the rated value being used for forming current is transmitted to battery cell 18 in the shaping output stage of disposed outside or shaping electronic circuit cell 10 from relative to battery cell.Thus, ensure that battery cell 18 all synchronously performs identical shaping flow process, make such as all to adjust to same charging current simultaneously.If when parallel connection shaping 19, as it schematically shows in fig. 2, go wrong in one or more in two battery cells 18, so described battery cell 18 can be separated in the following manner self from shaping flow process, namely turns off corresponding power semiconductor.Be shaped in the scope of 19 in the parallel connection continuing to run, " good battery " can continue when not interrupting shaping flow process to be shaped.
Fig. 3 illustrates the battery cell with integrated power electronic circuit, is constructed to half-bridge circuit in the enforcement flexible program that this power electronic circuit is shown in Figure 3.
Shown in Fig. 3, the battery cell 18 with integrated power electronic circuit comprises controller 20.Controller 20 is parts of the battery cell monitoring electronic circuit 22 of the assembly had for controlling power semiconductor.In addition, Quick discharger 24 (UltraFastDischargeDevice=UFDD) can be comprised by the enforcement flexible program shown in Figure 3 of the battery cell 18 of bypass cross-over connection.Quick discharger 24 according to the description in Fig. 3 comprises resistance 26, and this resistance and power switch 28 are connected in series.The battery cell 18 with the first integrated power electronic circuit 30 shown in Figure 3, this first power electronic circuit 30 is implemented as half-bridge circuit in this case.This first integrated power electronic circuit comprises first power semiconductor 32 that can turn on and off and second power semiconductor 34 that can turn on and off equally.Two power semiconductors 32 or 34 may be embodied as transistor or field-effect transistor (MOSFET).First diode 36 and the second diode 38 and described power semiconductor be arranged in parallel integrated first power electronic circuit 30 (as its in figure 3 shown in), these two diodes are all configured to hold-off diode.In addition, according to enforcement flexible program in figure 3, battery cell 18 comprises the storing apparatus 40 for battery cell.Battery cell shown in Figure 3 can in its battery terminal 42 and 44 output voltage+U
zelleor 0V, its prerequisite is: power semiconductor 32 or 34 is only operated in the operation of connecting completely or in the operation turned off.If (as illustrated) such as the first power semiconductor 32 operates in linear regulator equipment (Linearreglerbetrieb) 47, so just forming current can be regulated.Carry out Current adjustment by first power semiconductor 32 that can run in effective region, this first power semiconductor can run as homophase adjuster or linear regulator at this, wherein performs Current adjustment with high precision.Determined there is no alternating current component by principle, because the first power semiconductor 32 is operated in linear operation instead of in switch runs.
Fig. 4 illustrates following battery cell, and the integrated power electronic circuit of this battery cell comprises the bridge circuit be made up of the first half-bridge and the second half-bridge.
Be similar to the battery cell 18 shown in Fig. 3, battery cell 18 comprises controller 20, and this controller is the part of the battery cell monitoring electronic circuit 22 of the assembly had for controlling power semiconductor.In addition, comprise Quick discharger 24 (UFDD) according to the battery cell 18 of the description in Fig. 4, this Quick discharger 24 comprises resistance 26, and this resistance 26 is connected in series with power switch 28.
Different from the description according to Fig. 3, Fig. 4 has the full-bridge circuit of the two or the two integrated power electronic circuit 48 as the inside at battery cell 18, and this full-bridge circuit comprises the first half-bridge 50 and the second half-bridge 52.The second power semiconductor 34 that first half-bridge 50 comprises the first power semiconductor 32 (can turn on and off) and can turn on and off equally.In addition, the first half-bridge 50 comprises the first diode 36 and the second diode 38, and these two diodes are constructed to hold-off diode.
The first half-bridge 50 that second half-bridge 52 is similar to full-bridge circuit is implemented.Second half-bridge 52 comprises the 3rd power semiconductor 54 configured in the mode that can turn on and off equally, and the 4th power semiconductor 56 implemented in the mode that can turn on and off equally.In addition, the second half-bridge 52 of full-bridge circuit comprises the 3rd diode 58 and the 4th diode 60.As known in Fig. 4, according to the enforcement flexible program in Fig. 4, can be had an impact to the forming current of battery cell 18 by the second integrated power electronic circuit 48 constructed with full-bridge circuit.For this reason, (in order to provide example) second power semiconductor 34 operate in the first linear modulator apparatus 62, and the 3rd power semiconductor 54 of the second half-bridge 52 of full-bridge circuit operates in the second linear regulator equipment 64.By two with dotted line around respectively with Reference numeral 62 and 64 identify power semiconductor, can carry out the adjustment of the forming current of battery cell 18, this battery cell is equipped with the second integrated power electronic circuit 48 being embodied as full-bridge circuit in this case.Battery cell 18 shown in Figure 4 can distinguish output voltage+U in the first battery terminal 42 or in the second battery terminal 44
zelle,-U
zelleor 0V.In this hypothesis, the power semiconductor 32,34,54,56 of two half-bridges 50,52 only work in the operation of connecting completely or turn off operation in.
By the shaping can knowing the series connection of the battery cell with integrated power electronic circuit according to the description of Fig. 5.
Schematic circuit according to Fig. 5 illustrates, when battery cell 18 is shaped with series circuit 70, multiple battery cell 18 is arranged in series circuit 70 with placing successively.Shown in Figure 5, except power electronic circuit 11 and joint Terminal 14, shaping output stage or shaping electronic circuit cell 10 also comprise filter reactor 72 and current measurement part 74.The shaping output stage schematically shown in Figure 5 or shaping electronic circuit cell 10 provide can by the forming current of current regulation loop adjustment.The power electronic circuit 11 of shaping output stage 10 or shaping electronic circuit cell 10 designs for higher voltage and then for higher power because this power electronic circuit for the battery cell voltage sum be connected in series to run the forming current of the battery cell 18 that will be shaped in series circuit 70.When positive forming current, namely when charging current, according to the maximum of the electric current expected the shaping that the shaping output stage of the description in Fig. 5 or the output current of shaping electronic circuit cell 10 have for the battery cell 18 connected with series circuit 70.(for the situation of the charging current of 1C, this charging current needed corresponding to the battery cell with heap(ed) capacity).On the contrary when negative forming current, namely when discharging current, the output current of shaping output stage or shaping electronic circuit cell 10 has the minimum value of the electric current of expectation the shaping for the battery cell 18 arranged with series circuit 70.For the situation carrying out work with the discharging current of 1C, this discharging current needed corresponding to the battery cell with heap(ed) capacity.
When use respectively in the housing of the battery cell 18 that will be shaped and/or on integrated power electronic circuit carry out the adjustment of corresponding forming current, to make in battery cell 18 each itself regulates its forming current in the specific mode of battery cell.The output current provided with shaping output stage and shaping electronic circuit cell 10 is compared, the forming current flowing through battery cell 18 can by being reduced as follows, namely at least one (description see in Fig. 6 and Fig. 7) in power semiconductor 32,34 or 54,56 runs in effective region as linear regulator or homophase adjuster, and generates the electric current with the current parallel of the electrochemical part flowing through the battery cell 18 that will be shaped respectively.Thus, can prevent in an advantageous manner, the deviation that may cause due to manufacture fluctuation and/or manufacturing tolerance in the capability value of battery cell 18 causes the different temporal change of battery cell voltage.But, if the battery cell 18 that will be shaped when not using inner electronic circuit in the mode of series circuit 70 directly with same current charges or electric discharge, just there will be such deviation of battery cell voltage.
The parallel connection being similar to battery cell 18 is shaped 19, the rated value that can be undertaken by the shaping output stage of outside or shaping electronic circuit cell 10 forming current for battery cell 18 given in advance by least one communication interface 82 of battery cell 18.Thus, can guarantee in an advantageous manner, battery cell 18 all synchronously performs identical shaping flow process, makes such as all battery cells have identical temporal change in voltage simultaneously.
If when performing battery cell 18 and being shaped in the mode of series circuit 70, should go wrong in one or more battery cell, so described battery cell 18 can be separated in the following manner itself from shaping flow process, namely by power semiconductor 32,34,54,56 respectively with one or more involved battery cell 18 bypass be connected.And " the good battery " be retained in the manufacturing process of series connection can continue to be shaped when significantly shaping flow process is not interrupted.
The enforcement flexible program of the integrated power electronic circuit of the battery cell 18 that will be shaped in the mode of shaping of connecting is described according to Fig. 6 and Fig. 7 below.
Fig. 6 illustrates a kind of battery cell 18, and the integrated power electronic circuit of this battery cell comprises half-bridge circuit 30.
Battery cell 18 comprises battery cell monitoring electronic circuit 22, and this battery cell monitoring electronic circuit 22 comprises the assembly of the power semiconductor 32,34 of the first power electronic circuit 30 (half-bridge circuit) for control integration.In addition, in the battery cell 18 that will be shaped, Quick discharger 24 (UFDD) is provided with, the power switch 28 of the repid discharge for battery cell 18 that this Quick discharger 24 has resistance 26 and is connected with this resistant series.According in the enforcement flexible program of Fig. 6, the first integrated power electronic circuit 30 of battery cell 18 is implemented as half-bridge circuit, and this half-bridge circuit has with the first power semiconductor 32 of the mode configuration can connected and can turn off and equally with the second power semiconductor 34 of the mode configuration can connected and can turn off.Diode 36,38 is in parallel with described power semiconductor, is implemented as hold-off diode respectively in the enforcement flexible program of the half-bridge circuit that these two diodes are shown in Figure 6.Original battery cell is accommodated in storing apparatus 40.Battery cell 18 comprises the first battery terminal 42 and the second battery terminal 44.
Current path for being shaped is identified by Reference numeral 46.If operating in linear regulator equipment 47 according to such as the second power semiconductor 34 in the description of Fig. 6, forming current so for the flowing in the first forming current path 46 of battery cell 18 reduces in the following way, namely, when forming current 76 reduces, the electric current that the forming current being used in battery cell 18 reduces flows equally in the first current path.
Battery cell 18 shown in Figure 6 can export U in the first battery terminal 42 and in the second battery terminal 44
zelleor the voltage of U=0V, its prerequisite is: power semiconductor 32,34 is only operated in the operation of connecting completely or in the operation turned off.
Fig. 7 illustrates a kind of battery cell 18, and the second integrated power electronic circuit of this battery cell is constructed to full-bridge circuit.The first half-bridge 50 and the second half-bridge 52 is comprised according to the full-bridge circuit 48 of Fig. 7.First half-bridge 50 comprises the first power semiconductor 32 and the second power semiconductor 34 and two diodes 36 or 38, and these two diodes are being implemented as hold-off diode according in the enforcement flexible program of Fig. 7.And the second half-bridge 52 comprises the 3rd power semiconductor 54 and the 4th power semiconductor 56.In addition, the 3rd diode 58 and the 4th diode 60 is being accommodated according in second half-bridge 52 of Fig. 7, these two diodes are all implemented as hold-off diode, and are connected with the third and fourth power semiconductor 54,56 implemented in the mode can connected He can turn off in the opposite direction.In addition, the battery cell 18 according to the description in Fig. 7 comprises storing apparatus 40, in this storing apparatus, accommodate original battery cell.
Identified the forming current path during series connection shaping of present battery cell 18 by Reference numeral 66, this battery cell holds in series connection complex shown in Figure 3 in this case.In addition, can be learnt by Fig. 7, in this enforcement flexible program of battery cell 18, illustrated by circle, the first power semiconductor 32 in the first linear modulator apparatus 62 and the 4th power semiconductor 56 in the second linear regulator equipment 64 can run respectively in effective coverage.If at least one in two power semiconductors 32 or 56 is run as linear regulator or homophase adjuster in effective coverage, so in the second forming current path 66, the forming current of flowing is reduced.In this case, electric current or the flowing and/or flow in the 3rd current path, as schematically illustrated in the figure 7 when reducing according to the forming current of position 80 in the second current path when forming current (see position 78) reduces.The voltage that battery cell 18 can provide in two battery terminal 42 or 44 or for+U
zelle,-U
zellefor U=0V.
The aspect that the present invention is not limited to embodiment described here and emphasizes wherein.Or rather, multiple flexible program in the scope of the process of those skilled in the art can be realized among the scope illustrated by claim.
Claims (12)
1. for utilizing the device that there is the shaping output stage of power electronic circuit (11) or shaping electronic circuit cell (10) and make battery cell (18) be shaped, described shaping output stage or shaping electronic circuit cell provide adjusted output voltage or adjusted output current, it is characterized in that, described battery cell (18) has and has integrated power semiconductor (32,34; 54,56) integrated power electronic circuit (30,48), at least one in described power semiconductor has an impact to the forming current of the battery cell (18) with integrated power electronic circuit (30,48).
2. the device for making battery cell (18) be shaped according to claim 1, is characterized in that, at least one integrated power semiconductor (32,34 described; 54,56) be suitable for running as homophase adjuster or linear regulator in effective operation.
3. the device for making battery cell (18) be shaped according to any one of the claims, is characterized in that, described integrated power semiconductor (32,34; 54,56) transistor or field-effect transistor (MOSFET) is implemented as.
4. the device for making battery cell (18) be shaped according to any one of the claims, it is characterized in that, at the power semiconductor (32,34 had an impact to the forming current of the battery cell (18) with integrated power electronic circuit (30,48); 54,56) voltage drop at least one in is created on the voltage drop between 1mV and 10mV.
5. the device for making battery cell (18) be shaped according to any one of the claims, it is characterized in that, the integrated power electronic circuit (30,48) of described battery cell (18) comprises integrated first power electronic circuit (30) with the power semiconductor (32,34) that can switch or integrated second power electronic circuit (48) with two half-bridges (50,52), and described half-bridge has two power semiconductors (32,34 respectively; 54,56).
6. the method for making battery cell (18) be shaped, described battery cell has the device for making battery cell (18) be shaped according to any one of claim 1 to 5, and described method has method step below:
A) described shaping output stage or shaping electronic circuit cell (10) provide adjusted output voltage U for multiple battery cell (18) that will be shaped with parallel circuits (19) with integrated power electronic circuit (30,48)
B) when positive forming current, the output voltage U of described shaping output stage or shaping electronic circuit cell (10) has the value higher than the open circuit voltage OCV (OpenCircuitVoltage) of the battery cell (18) of all parallel connection shapings, the described battery cell wanting parallel connection to be shaped is current has maximum charged state or maximum open circuit voltage OCVOpenCircuitVoltage)
Or
C) when negative forming current, the output voltage U of described shaping output stage or shaping electronic circuit cell (10) has the value lower than the open circuit voltage OCV (OpenCircuitVoltage) with the battery cell (18) of integrated power electronic circuit (30,48) of all parallel connection shapings, the described battery cell wanting parallel connection to be shaped is current has minimum charged state or minimum open circuit voltage OCV (OpenCircuitVoltage)
D) wherein, the battery cell (18) that will be shaped having integrated power electronic circuit (30,48) respectively regulates its forming current individually.
7. method according to claim 6, it is characterized in that, undertaken by the communication interface (82) of described battery cell (18), by relative to the shaping output stage of described battery cell (18) in outside or shaping electronic circuit cell (10) rated value for forming current given in advance.
8. method according to claim 6, is characterized in that, at least one integrated power semiconductor (32,34 described; 54,56) run as homophase adjuster or linear regulator in effective operation, and the forming current with the corresponding battery cell (18) of integrated power electronic circuit (30,48) does not have alternating current component.
9. method according to claim 6, it is characterized in that, there is the battery cell (18) of integrated power electronic circuit (30,48) or measure battery cell electric current voluntarily, or obtaining the information about battery cell electric current from described shaping output stage or shaping electronic circuit cell (10).
10. the method for making battery cell (18) be shaped, described battery cell has the device for making battery cell (18) be shaped according to any one of claim 1 to 5, and described method has method step below:
A) described shaping output stage or shaping electronic circuit cell (10) provide adjusted output current for multiple battery cell (18) that will be shaped with series circuit (70),
B) by being integrated in the power electronic circuit (30,48) in the corresponding battery cell (18) that will be shaped, affect individually relative to the output current of described shaping output stage or shaping electronic circuit cell (10), especially reduce forming current, wherein
C) when positive forming current, the output current of described shaping output stage or shaping electronic circuit cell (10) has the maximum of the electric current expected the shaping for the battery cell (18) that will be shaped with series circuit (70)
Or
D) when negative forming current, the output current of described shaping output stage or shaping electronic circuit cell (10) has the minimum value of the current value expected the shaping for the battery cell (18) that will be shaped with integrated power electronic circuit (30,48).
11. methods according to any one of the claims, it is characterized in that, compared with the output current provided with described shaping output stage or shaping electronic circuit cell (10), reduce the forming current of the described battery cell (18) that will be shaped through having integrated power electronic circuit (30,48) in the following manner, i.e. described power semiconductor (32,34; 54,56) at least one in is run as linear regulator or homophase adjuster in effective coverage, and generates the electric current with the current parallel of the electrochemical part flowing through the described battery cell (18) that will be shaped with integrated power electronic circuit (30,48).
12. methods according to any one of the claims, it is characterized in that, come given in advance by the shaping output stage of described outside or shaping electronic circuit cell (10) via at least one communication interface (82) of the described battery cell (18) that will be shaped with integrated power electronic circuit (30,48) for the rated value with the forming current of the described battery cell (18) that will be shaped of integrated power electronic circuit (30,48).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014208225.0A DE102014208225A1 (en) | 2014-04-30 | 2014-04-30 | Formation of battery cells |
| DE102014208225.0 | 2014-04-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105048531A true CN105048531A (en) | 2015-11-11 |
| CN105048531B CN105048531B (en) | 2019-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510290747.XA Active CN105048531B (en) | 2014-04-30 | 2015-04-29 | The forming of battery cell |
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| Country | Link |
|---|---|
| KR (1) | KR20150125601A (en) |
| CN (1) | CN105048531B (en) |
| DE (1) | DE102014208225A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4439785A1 (en) * | 1994-11-07 | 1996-05-09 | Mikron Ges Fuer Integrierte Mi | Rechargeable battery charging method e.g. for laptop computer or mobile phone |
| US6291972B1 (en) * | 1999-02-17 | 2001-09-18 | Chaojiong Zhang | System for battery formation, charging, discharging, and equalization |
| US20100164437A1 (en) * | 2008-10-24 | 2010-07-01 | Mckinley Joseph P | Battery formation and charging system and method |
| CN103412262A (en) * | 2013-07-25 | 2013-11-27 | 天津市松正电动汽车技术股份有限公司 | Battery charging and discharging testing equipment and method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3740323B2 (en) * | 1998-07-31 | 2006-02-01 | キヤノン株式会社 | Secondary battery charging method and apparatus |
| DE102004060359A1 (en) | 2004-12-15 | 2006-07-06 | Austriamicrosystems Ag | Charge controller assembly and method for charging a battery |
| DE102009035466A1 (en) | 2009-07-31 | 2011-02-03 | Daimler Ag | Method for forming e.g. lithium-ion single cells, in battery that is utilized in e.g. hybrid drive vehicle, involves electrically serially and/or parallelly connecting single cells in cell assembly, and cooling cells by cooling device |
| AT11605U3 (en) | 2010-08-26 | 2011-09-15 | Avl List Gmbh | APPENDIX FOR FORMING LITHIUM ION CELLS |
| DE102012214097A1 (en) * | 2012-08-08 | 2014-03-06 | Robert Bosch Gmbh | Forming device and method for forming battery cells of a battery |
-
2014
- 2014-04-30 DE DE102014208225.0A patent/DE102014208225A1/en active Pending
-
2015
- 2015-04-29 CN CN201510290747.XA patent/CN105048531B/en active Active
- 2015-04-29 KR KR1020150060360A patent/KR20150125601A/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4439785A1 (en) * | 1994-11-07 | 1996-05-09 | Mikron Ges Fuer Integrierte Mi | Rechargeable battery charging method e.g. for laptop computer or mobile phone |
| US6291972B1 (en) * | 1999-02-17 | 2001-09-18 | Chaojiong Zhang | System for battery formation, charging, discharging, and equalization |
| US20100164437A1 (en) * | 2008-10-24 | 2010-07-01 | Mckinley Joseph P | Battery formation and charging system and method |
| CN103412262A (en) * | 2013-07-25 | 2013-11-27 | 天津市松正电动汽车技术股份有限公司 | Battery charging and discharging testing equipment and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105048531B (en) | 2019-08-13 |
| DE102014208225A1 (en) | 2015-11-05 |
| KR20150125601A (en) | 2015-11-09 |
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