WO2023035227A1 - 电池化成装置、电池化成装置的控制方法、及控制系统 - Google Patents

电池化成装置、电池化成装置的控制方法、及控制系统 Download PDF

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Publication number
WO2023035227A1
WO2023035227A1 PCT/CN2021/117710 CN2021117710W WO2023035227A1 WO 2023035227 A1 WO2023035227 A1 WO 2023035227A1 CN 2021117710 W CN2021117710 W CN 2021117710W WO 2023035227 A1 WO2023035227 A1 WO 2023035227A1
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WIPO (PCT)
Prior art keywords
battery
battery unit
control switch
voltage
conversion module
Prior art date
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.)
Ceased
Application number
PCT/CN2021/117710
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English (en)
French (fr)
Inventor
李占良
周欢乐
李盟
左希阳
颜昱
但志敏
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to EP21956410.1A priority Critical patent/EP4220818A4/en
Priority to JP2023526410A priority patent/JP7408016B2/ja
Priority to KR1020237016654A priority patent/KR102635600B1/ko
Priority to PCT/CN2021/117710 priority patent/WO2023035227A1/zh
Priority to CN202180054382.4A priority patent/CN116134660B/zh
Publication of WO2023035227A1 publication Critical patent/WO2023035227A1/zh
Priority to US18/320,035 priority patent/US11923712B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H02J7/865—
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/049—Processes for forming or storing electrodes in the battery container
    • 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
    • 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
    • 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
    • H02J7/80—
    • H02J7/875—
    • H02J7/96—
    • 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
    • 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

Definitions

  • the present application relates to the field of batteries, in particular to a battery formation device, a control method and a control system for the battery formation device.
  • Battery formation is an important process in the battery production process. Specifically, battery formation is to use the battery formation device to charge and discharge the battery, so as to achieve the purpose of improving battery performance and testing battery capacity.
  • the current battery formation device has disadvantages that the battery cannot be fully discharged, thereby reducing the battery formation effect and the accuracy of the detected battery capacity.
  • the present application provides a battery formation device, a control method and a control system of the battery formation device, which can solve the technical problems of poor battery formation effect and low accuracy of detected battery capacity caused by insufficient discharge of the battery.
  • the present application provides a battery formation device, which includes: a first DC-DC conversion module, an additional power supply, and a control circuit; the low-voltage end of the first DC-DC conversion module is used for electrical connection with the control circuit, The high-voltage end of the first DC-DC conversion module is used for electrical connection with the DC bus; the first DC-DC conversion module is used for converting the first voltage input from the low-voltage end into a second voltage when the battery unit discharges the battery forming device , and output a second voltage through the high-voltage terminal; wherein, the second voltage is higher than the first voltage; the additional power supply is used for electrical connection with the control circuit, and the additional power supply is used for outputting an additional voltage; wherein, the polarity of the additional power supply is the same as that of the battery unit The polarity is the same; the control circuit is used to electrically connect the battery unit, the low-voltage terminal of the first DC-DC conversion module, and the additional power supply; the control circuit is used to discharge the first
  • the control circuit when the battery unit discharges the battery formation device, the control circuit connects the low-voltage terminal of the first DC-DC conversion module, the battery unit and the additional power supply in series, and the polarity of the battery unit and the additional power supply The same, so that the polarity of the voltage output by the battery unit and the additional power supply is consistent, and the voltage output by the battery unit and the additional power supply is superimposed and then input to the low-voltage terminal of the first DC-DC conversion module to avoid the input voltage of the first DC-DC conversion module is less than the minimum input voltage threshold of the first DC-DC conversion module, so that each battery cell in the battery unit can be fully discharged, and then the battery cell pool caused by the inability of each battery cell in the battery unit to be fully discharged can be avoided.
  • control circuit is also used to connect the low voltage end of the first DC-DC conversion module and the battery unit in series when the battery forming device is charging the battery unit.
  • the device further includes: a detection module, the detection module is used for electrical connection with the battery unit and the control circuit, and the detection module is used for detecting the output voltage of the battery unit; When the formation device is discharged and the detection module detects that the output voltage of the battery unit is lower than the first voltage threshold, the low-voltage terminal of the first DC-DC conversion module, the battery unit and the additional power supply are connected in series.
  • the output voltage of the battery unit is detected by the detection module when the battery unit is discharging, and the additional power supply is started only when the battery unit is in a discharging state and the output voltage of the battery unit is lower than the first voltage threshold, and the additional power supply is connected in series to the In the discharge circuit composed of the low-voltage end of the first DC-DC conversion module and the battery unit, the overall energy consumption of the battery formation device is further reduced, and the formation processing cost of the battery formation device is reduced.
  • the battery cell is single. Performing formation treatment on a single battery unit through a group of charging and discharging components can avoid the interference of the formation process of other battery units on the formation process of this battery unit, and help to improve the accuracy of the capacity detection of the battery unit.
  • the control circuit includes a first control switch and a second control switch; the first sub-terminal of the low-voltage end of the first DC-DC conversion module is used to electrically connect with the first pole of the battery unit ; The first end of the first control switch is used to electrically connect with the second sub-end of the low-voltage end of the first DC-DC conversion module and the second pole of the additional power supply, and the first end of the first control switch The two terminals are used for electrical connection with the second pole of the battery unit and the second terminal of the second control switch; the first terminal of the second control switch is used for electrical connection with the first pole of the additional power supply ; Wherein, when the battery unit is discharging for the battery formation device, the first end of the first control switch is not in communication with the second end of the first control switch, and the first end of the second control switch communicated with the second end of the second control switch.
  • a group of charging and discharging components corresponds to a single battery unit, and the access of additional power in the charging and discharging circuit is controlled through the first control switch and the second control switch, further simplifying the structure of the battery formation device and saving formation costs.
  • the control circuit includes a first control switch and a second control switch; the first sub-terminal of the low-voltage end of the first DC-DC conversion module is used to electrically connect with the first pole of the battery unit ; The first end of the first control switch is used to electrically connect with the second sub-end of the low-voltage end of the first DC-DC conversion module and the first end of the second control switch, and the first control switch The second terminal of the second control switch is used for electrical connection with the second pole of the battery unit and the first pole of the additional power supply; the second terminal of the second control switch is used for electrical connection with the second pole of the additional power supply ; Wherein, when the battery unit is discharging for the battery formation device, the first end of the first control switch is not in communication with the second end of the first control switch, and the first end of the second control switch communicated with the second end of the second control switch.
  • a group of charging and discharging components corresponds to a single battery unit, and the access of additional power in the charging and discharging circuit is controlled through the first control switch and the second control switch, further simplifying the structure of the battery forming device and saving the cost of forming.
  • the control circuit includes a third control switch; the first sub-terminal of the low-voltage end of the first DC-DC conversion module is used to electrically connect with the first pole of the battery unit; the third The first end of the control switch is used to electrically connect with the second sub-end of the low-voltage end of the first DC-DC conversion module, and the second end of the third control switch is used to connect with the second pole of the battery unit and The first pole of the additional power supply is electrically connected, and the third terminal of the third control switch is used to electrically connect with the second pole of the additional power supply; wherein, when the battery unit is discharged for the battery formation device, The first end of the third control switch is not in communication with the second end of the third control switch, and the first end of the third control switch is in communication with the third end of the third control switch.
  • a group of charging and discharging components corresponds to a single battery unit, and the access of the additional power supply in the charging and discharging circuit can be controlled through a third control switch, which further simplifies the structure of the battery forming device and reduces the number of components of the battery forming device. Save cost of formation.
  • the battery unit includes a first battery unit and a second battery unit.
  • a group of charging and discharging components multiple battery cells are formed, which effectively improves the utilization rate of charging and discharging components, and saves energy consumption and cost of battery forming devices.
  • the control circuit includes a first control switch and a second control switch; the first sub-terminal of the low-voltage end of the first DC-DC conversion module is used to communicate with the first pole of the first battery unit Electrically connected, the second sub-terminal of the low-voltage end of the first DC-DC conversion module is used for electrical connection with the second pole of the second battery unit; the first terminal of the first control switch is used for electrical connection with the The second pole of the first battery unit is electrically connected to the first pole of the additional power supply, and the second terminal of the first control switch is used to communicate with the first pole of the second battery unit and the second control switch.
  • the second terminal of the second control switch is electrically connected to the second terminal of the additional power supply; wherein, when the battery unit is discharged for the battery formation device, the first terminal The first end of the control switch is not in communication with the second end of the first control switch, and the first end of the second control switch is in communication with the second end of the second control switch.
  • a group of charging and discharging components corresponds to the first battery unit and the second battery unit, and the access of the additional power supply in the charging and discharging circuit is controlled through the first control switch and the second control switch, simplifying the structure of the battery formation device , saving formation cost; and, the first control switch and the second control switch are arranged between two battery units, which can effectively reduce the length of connecting wires and save the cost of the battery formation device.
  • the control circuit includes a first control switch and a second control switch; the first sub-terminal of the low-voltage end of the first DC-DC conversion module is used to communicate with the first pole of the first battery unit Electrically connected, the second sub-terminal of the low-voltage end of the first DC-DC conversion module is used for electrical connection with the second pole of the second battery unit; the first terminal of the first control switch is used for electrical connection with the The second pole of the first battery unit is electrically connected to the first terminal of the second control switch, and the second terminal of the first control switch is used to connect with the second pole of the additional power supply and the second battery unit.
  • the first pole of the second control switch is electrically connected to the first pole of the additional power supply; wherein, when the battery unit is discharged for the battery formation device, the first The first end of the control switch is not in communication with the second end of the first control switch, and the first end of the second control switch is in communication with the second end of the second control switch.
  • a group of charging and discharging components corresponds to the first battery unit and the second battery unit, and the access of the additional power supply in the charging and discharging circuit is controlled through the first control switch and the second control switch, simplifying the structure of the battery formation device , saving formation cost; and, the first control switch and the second control switch are arranged between two battery units, which can effectively reduce the length of connecting wires and save the cost of the battery formation device.
  • the control circuit includes a third control switch; the first sub-terminal of the low-voltage end of the first DC-DC conversion module is used to electrically connect with the first pole of the first battery unit, the The second sub-end of the low-voltage end of the first DC-DC conversion module is used to electrically connect with the second pole of the second battery unit; the first end of the third control switch is used to connect with the second pole of the first battery unit The second pole is electrically connected, the second terminal of the third control switch is used for electrical connection with the first pole of the additional power supply, and the third terminal of the third control switch is used for connecting with the second battery unit The first pole is electrically connected; wherein, when the battery unit is discharging for the battery formation device, the first terminal of the third control switch communicates with the second terminal of the third control switch.
  • a group of charging and discharging components corresponds to the first battery unit and the second battery unit, and a control switch is used to control the access of the additional power supply in the charging and discharging circuit, further reducing the number of components contained in the battery formation device and saving formation cost; moreover, the third control switch is arranged between the two battery units, which can effectively reduce the length of the connecting wire and save the cost of the battery formation device.
  • the additional power supply is a second DC-DC conversion module; the high-voltage end of the second DC-DC conversion module is used to electrically connect with the DC bus, and the second DC-DC conversion module
  • the low-voltage end of the battery cell is used to be connected in series with the low-voltage end of the first DC-DC conversion module and the battery cell when the battery cell is discharging the battery forming device.
  • the second DC-DC conversion module is used as an additional power source.
  • the voltage output from the low-voltage end of the second DC-DC conversion module can be superimposed on the voltage output by the battery unit.
  • the second DC-DC conversion module has the characteristics of low power consumption and small size, which is beneficial to reduce the energy consumption of the battery formation device and reduce the volume of the battery formation device.
  • the device further includes: an AC-DC conversion module; the AC terminal of the AC-DC conversion module is used for electrical connection with the power grid, and the DC terminal of the AC-DC conversion module is used for electrical connection with the DC bus connection; the AC-DC conversion module is used to convert the DC voltage input by the DC terminal of the AC-DC conversion module into an AC voltage when the battery unit is discharging the battery forming device, and pass the The AC terminal of the AC-DC conversion module outputs the AC voltage; and, the AC-DC conversion module is used to convert the AC voltage of the AC-DC conversion module when the battery forming device is charging the battery unit. The AC voltage input at the terminal is converted into a DC voltage, and the DC voltage is output through the DC terminal of the AC-DC conversion module.
  • the alternating current of the grid can be converted into direct current and used to charge the battery unit; the direct current output by the battery unit can also be converted into alternating current and output to the grid. Therefore, the battery formation device can be applied to the scene of alternating current, and the application range of the battery formation device can be expanded.
  • the present application provides a control method for the above-mentioned battery formation device, including: receiving a battery unit discharge control instruction; controlling the low-voltage terminal of the first DC-DC conversion module in the battery formation device, the battery unit and an additional power supply connected in series; and controlling the battery unit to discharge the battery forming device.
  • the battery formation device can respond in time to the discharge control command issued by the central computer, and connect the additional power supply in series to the low-voltage end of the first DC-DC conversion module and the discharge circuit formed by the battery unit, thereby Increase the voltage input to the first DC-DC conversion module to prevent the input voltage of the first DC-DC conversion module from being lower than the minimum input voltage threshold of the first DC-DC conversion module, so that each battery cell in the battery unit Fully discharge, avoiding the technical disadvantages of poor cell pooling effect and poor accuracy of detected battery capacity caused by the inability of each battery cell in the battery cell to be fully discharged.
  • the controlling the low-voltage terminal of the first DC-DC conversion module in the battery formation device, the battery unit and the additional power supply in series further includes: detecting the output voltage of the battery unit; When the output voltage of the battery unit is lower than the first voltage threshold, the low-voltage terminal of the first DC-DC conversion module in the battery formation device is controlled to be connected in series with the battery unit and the additional power supply. In this way, when the battery unit is in the discharge state and the output voltage of the battery unit is lower than the first voltage threshold, the additional power supply is started, and the additional power supply is connected in series to the low-voltage terminal of the first DC-DC conversion module and the battery unit. In the discharge circuit, the overall energy consumption of the battery formation device is further reduced, and the cost of formation treatment of the battery formation device is reduced.
  • the battery unit and the additional power supply are connected in series It further includes: if it is detected that the output voltage of the battery unit is lower than the first voltage threshold, after suspending the AC-DC conversion module of the battery formation device, controlling the low-voltage terminal of the first DC-DC conversion module in the battery formation device, The battery unit and the additional power supply are connected in series; and after the low-voltage terminal of the first DC-DC conversion module in the battery formation device is controlled, the battery unit and the additional power supply are connected in series, the AC-DC conversion module is restarted.
  • the AC-DC conversion module is first suspended to prevent the AC-DC conversion module from continuously outputting high voltage to the first DC-DC conversion module via the DC bus, and then the additional power supply is connected in series to the first DC-DC conversion module.
  • the discharge circuit formed by the low-voltage end and the battery unit the transient peak voltage of the first DC-DC conversion module is avoided, and the service life of the first DC-DC conversion module is prolonged.
  • the method further includes: collecting battery state information of the battery unit, and feeding back the battery state information to a central computer.
  • the implementation in this embodiment is adopted to collect and feed back the battery state information of the battery unit in real time, so as to find out the state of the battery unit in the pooling process in time, and facilitate the timely discovery and timely response to the abnormal state.
  • the method further includes: judging whether the charging time of the battery formation device for charging the battery unit exceeds a preset time; if so, sending an alarm message to the central computer; and receiving the central computer based on The suspension instruction sent by the alarm information suspends the AC-DC conversion module in the battery formation device.
  • the method further includes: judging whether the output voltage of the battery unit exceeds the second voltage threshold; if so, sending an alarm message to the central computer; receiving a suspension from the central computer based on the alarm information an instruction to suspend the output of the battery cell according to the suspending instruction.
  • the method further includes: judging whether there is an abnormality according to the discharge voltage of the battery unit, when it is determined that there is an abnormality, an alarm message is sent to the central computer in time, so as to handle the abnormal state; and during the processing, the battery unit is stopped On the one hand, it protects the safety of the battery unit and the battery formation device; on the other hand, it reduces the energy consumption of the battery unit and saves the cost of formation.
  • the present application provides a battery formation control system, including: the above-mentioned battery formation device, and an intermediate computer; the intermediate computer establishes a communication connection with the battery formation device; the intermediate computer is used for Sending a charge control command or a discharge control command to the battery formation device; the battery formation device is used to control the battery unit to discharge for the battery formation device according to the discharge control command; or, the battery formation device uses and controlling the battery forming device to charge the battery unit according to the charging control command.
  • FIG. 1 is a schematic structural view of a battery formation device in the prior art
  • Fig. 2 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • FIG. 3 is a schematic structural diagram of a first DC-DC conversion module in some embodiments of the present application.
  • Fig. 4 is a schematic diagram of an equivalent circuit when a battery cell in some embodiments of the present application is discharged as a battery formation device;
  • Fig. 5 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • FIG. 6 is a schematic diagram of an equivalent circuit when a battery formation device in some embodiments of the present application charges a battery cell;
  • Fig. 7 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • Fig. 8 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • Fig. 9 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • Fig. 10 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • Fig. 11 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • Figure 12 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • Figure 13 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • Fig. 14 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • Fig. 15 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • Fig. 16 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • Fig. 17 is a schematic flowchart of a control method of a battery formation device in some embodiments of the present application.
  • Fig. 18 is a schematic structural diagram of a battery formation system in some embodiments of the present application.
  • Battery formation device 100 battery unit 200, intermediate computer 300, battery formation system 400;
  • the first control switch 131 the second control switch 132 , and the third control switch 133 .
  • the term “and/or” is only a kind of association relationship describing associated objects, which means that there may be three kinds of relationships, such as A and/or B, which may mean: A exists alone, and A exists at the same time and B, there are three cases of B alone.
  • the character "/" in this article generally indicates that the contextual objects are an "or” relationship.
  • the term “multiple” refers to more than two (including two), similarly, “multiple groups” refers to more than two groups (including two), and “multiple pieces” refers to More than two pieces (including two pieces).
  • power batteries are widely used in electric vehicles such as electric vehicles, energy storage power systems such as clean energy, and other fields. After the power battery is formed, it needs to be charged and discharged by the battery formation device. This process is the formation process of the power battery.
  • the formation process of the power battery can not only activate the power battery and improve the overall performance of the power battery, but also detect the capacity of the power battery during the formation process, providing a basis for the evaluation of the performance of the power battery.
  • the battery formation device in the prior art includes a DC-DC conversion module, and the DC-DC conversion module is connected in series with battery cells.
  • the DC-DC conversion module When the battery unit is in the charging mode, the DC-DC conversion module will transmit the voltage from the grid to the battery unit after step-down conversion to charge the battery unit; when the battery unit is in the discharging mode, the DC-DC conversion module will convert the battery The output voltage of the unit is transferred to the grid after step-up conversion.
  • the inventor has designed a battery formation device.
  • a battery with the same polarity as the battery unit is connected in series in the circuit of the DC-DC conversion module and the battery unit. Additional power supply to increase the input voltage of the DC-DC conversion module.
  • the battery formation device adopting this structure can fully discharge each battery cell of the battery unit, thereby improving the poor formation effect of the battery and improving the accuracy of the detected battery capacity.
  • the battery formation device disclosed in the embodiments of the present application can be used, but not limited to, in the formation process of storage batteries such as lithium-ion batteries, lead-acid batteries, and nickel-metal hydride batteries.
  • the storage battery is also called a rechargeable battery, or a secondary battery, and the like.
  • the battery described in the embodiments of the present application specifically refers to a storage battery.
  • the battery unit described in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the number of battery cells contained in different battery units may be the same or different.
  • the battery unit includes a plurality of battery cells, the plurality of battery cells included in the battery unit may be connected in parallel or in series.
  • the battery cell includes a positive pole piece, a negative pole piece, an electrolyte and a separator.
  • the DC-DC conversion module described in the embodiments of the present application refers to a DC-to-DC converter, and the DC-DC conversion module is used to convert electric energy of one voltage value into electric energy of another voltage value.
  • the DC-DC conversion module in the embodiment of the present application includes a high voltage end and a low voltage end. The high-voltage end is used to input or output higher electric energy than the low-voltage end, and the low-voltage end is used to input or output lower electric energy than the high-voltage end.
  • FIG. 2 is a schematic structural diagram of a battery formation device in some embodiments of the present application
  • Fig. 3 is a schematic structural diagram of a first DC-DC conversion module in some embodiments of the present application
  • Fig. 4 is a schematic diagram of a battery unit in some embodiments of the present application. Schematic diagram of the equivalent circuit when the device is discharged.
  • the battery formation device 100 includes: a first DC-DC conversion module 110 , an additional power source 120 and a control circuit 130 .
  • the first DC-DC conversion module 110 , the additional power source 120 and the battery unit 200 are respectively used for electrical connection with the control circuit 130 .
  • the control circuit 130 connects the first DC-DC conversion module 110 , the battery unit 200 and the additional power source 120 in series when the battery unit 200 is discharging the battery forming device 100 .
  • the first DC-DC conversion module 110 includes a low-voltage terminal 111 and a high-voltage terminal 112 , the low-voltage terminal 111 is used for electrical connection with the control circuit 130 , and the high-voltage terminal 112 is used for electrical connection with the DC bus 140 .
  • the first DC-DC conversion module 110 is used to convert the first voltage input from the low-voltage terminal 111 into a second voltage and output the second voltage through the high-voltage terminal 112 when the battery unit 200 is discharging the battery forming device 100; wherein, The second voltage is higher than the first voltage.
  • the first DC-DC conversion module 110 boosts the input voltage and outputs it to the DC bus 140 .
  • the first DC-DC conversion module 110 is also used to convert the voltage input from the DC bus 140 to the high-voltage terminal 112 from the low-voltage terminal 111 after step-down processing when the battery formation device 100 is charging the battery unit 200. output.
  • the first DC-DC conversion module 110 is specifically an isolated DC-DC conversion converter. With this structure, the input circuit and output circuit of the first DC-DC conversion module 110 are isolated from each other without interfering with each other, thereby simplifying the structure of the battery forming device and reducing the size and cost of the battery forming device.
  • the additional power source 120 is used for electrical connection with the control circuit 130 , and the additional power source 120 is also used for outputting an additional voltage, and the polarity of the additional power source 120 is consistent with that of the battery unit 200 .
  • the control circuit 130 is specifically used for connecting the low-voltage terminal 111 of the first DC-DC conversion module, the battery unit 200 and the additional power supply 120 in series when the battery unit 200 is discharging the battery forming device 100 .
  • FIG. 4 is a schematic diagram of an equivalent circuit when a battery unit in some embodiments of the present application discharges for a battery formation device. As shown in FIG. 4 , when the battery unit 200 is discharging for the battery formation device 100 , the low voltage terminal 111 of the first DC-DC conversion module, the battery unit 200 and the additional power supply 120 are connected in series.
  • the polarity of the additional power supply 120 is consistent with that of the battery unit 200
  • the polarity of the voltage output by the additional power supply 120 is consistent with that of the battery unit 200
  • the superposition amplitude of the output voltage of the additional power supply 120 and the battery unit 200 is equal to the output voltage amplitude of the additional power supply 120 and the battery
  • the unit 200 outputs the sum of the voltage amplitudes, thereby increasing the input voltage amplitude of the first DC-DC conversion module.
  • the control circuit connects the low-voltage terminal of the first DC-DC conversion module, the battery unit and the additional power supply in series, and the polarity of the battery unit and the additional power supply are the same, so that The voltage polarity of the battery unit and the output of the additional power supply are the same, and then the input voltage of the first DC-DC conversion module is increased, so as to avoid the occurrence that the input voltage of the first DC-DC conversion module is lower than the minimum input voltage threshold of the first DC-DC conversion module , so that each battery cell in the battery unit can be fully discharged, avoiding the technical disadvantages of poor battery cell pooling effect and poor accuracy of detected battery capacity caused by the failure of each battery cell in the battery unit to fully discharge.
  • FIG. 5 is a schematic structural diagram of a battery formation device in some embodiments of the present application.
  • a first DC-DC conversion module 110 , an additional power source 120 and a control circuit 130 form a set of charging and discharging components, and each set of charging and discharging components is used for forming a corresponding battery unit 200 .
  • the high voltage end 112 of the first DC-DC conversion module 110 in each set of charging and discharging components is electrically connected to the DC bus.
  • control circuit 130 is also used to connect the low-voltage terminal 111 of the first DC-DC conversion module 110 and the battery unit 200 in series when the battery formation device 100 is charging the battery unit 200 .
  • FIG. 6 is a schematic diagram of an equivalent circuit when a battery forming device according to some embodiments of the present application charges a battery unit. As shown in FIG. 6 , when the battery formation device 100 is charging the battery unit 200 , the additional power source 120 is not in the charging circuit.
  • Adopting the implementation mode in this example on the one hand, when the battery formation device is charging the battery unit, the influence of the additional power supply on the charging process can be avoided; on the other hand, the additional power supply can not output voltage when the battery formation device is charging the battery unit , thereby reducing the overall energy consumption of the battery formation device.
  • the battery formation device 100 further includes a detection module 150 for electrically connecting with the battery unit 120 and the control circuit 130 .
  • FIG. 7 is a schematic structural diagram of a battery formation device according to some embodiments of the present application.
  • the detection module 150 is electrically connected to the battery unit 120 and the control circuit 130 respectively.
  • the detection module 150 can detect the output voltage of the battery unit 200 through the electrical connection with the battery unit 120 .
  • the control circuit 130 connects the low-voltage terminal of the first DC-DC conversion module, the battery unit and the additional power supply in series.
  • the control circuit 130 only The low voltage end 111 of the first DC-DC conversion module is connected in series with the battery unit 200 .
  • the detection module detects the output voltage of the battery unit when the battery unit is discharging, and when the battery unit is in a discharging state and the output voltage of the battery unit is lower than the first voltage threshold, the additional power supply is started, and the The additional power supply is connected in series to the discharge circuit composed of the low-voltage end of the first DC-DC conversion module and the battery unit, further reducing the overall energy consumption of the battery formation device and reducing the formation processing cost of the battery formation device.
  • a first DC-DC conversion module, an additional power supply, and a control circuit form a set of charging and discharging components, and a set of charging and discharging components corresponds to a single battery unit.
  • a battery unit contains one or more battery cells. Performing formation treatment on a single battery unit through a group of charging and discharging components can avoid the interference of the formation process of other battery units on the formation process of this battery unit, and help to improve the accuracy of the capacity detection of the battery unit.
  • a group of charging and discharging components corresponds to a single battery unit, and the control circuit 130 includes a first control switch 131 and a second control switch 132 .
  • FIG. 8 is a schematic structural diagram of a battery formation device according to some embodiments of the present application.
  • the first sub-end of the low-voltage end 111 of the first DC-DC conversion module 110 is used to electrically connect with the first pole of the battery unit 200, and the first end of the first control switch 131 is used to connect with the first
  • the second sub-end of the low-voltage end 111 of the DC-DC conversion module 110 is electrically connected to the second pole of the additional power supply, and the second end of the first control switch 131 is used to connect with the second pole of the battery unit 200 and the second control switch 132
  • the second terminal of the second control switch 132 is electrically connected to the first terminal of the additional power supply 120 .
  • the first pole is a positive pole
  • the second pole is a negative pole
  • the first pole is a negative pole
  • the second pole is a positive pole.
  • the first end of the first control switch 131 is not connected to the second end of the first control switch 131, and the first end of the second control switch 132 is connected to the second end of the second control switch 132. The second end is connected.
  • the first control switch 131 is in the open state, and the second control switch 132 is in the closed state, so that the low voltage terminal of the battery unit 200 and the first DC-DC conversion module 110 111 and the additional power supply 120 are connected in series, and the polarity of the additional power supply 120 is the same as that of the battery unit 200 , and the additional power supply 120 and the battery unit 200 can output voltages with the same polarity.
  • the first control switch 131 is turned off, and the second control switch 132 is turned on state.
  • the first control switch 131 is in a closed state, and the second control switch 132 is in an open state. Therefore, only the battery unit 200 is connected in series with the low voltage terminal 111 of the first DC-DC conversion module 110 .
  • a group of charging and discharging components corresponds to a single battery unit, and the access of the additional power supply in the charging and discharging circuit is controlled through the first control switch and the second control switch, further simplifying the structure of the battery formation device, Save cost of formation.
  • a group of charging and discharging components corresponds to a single battery unit, and the control circuit 130 includes a first control switch 131 and a second control switch 132 .
  • FIG. 9 is a schematic structural diagram of a battery formation device according to some embodiments of the present application.
  • the first sub-end of the low-voltage end 111 of the first DC-DC conversion module 110 is used to electrically connect with the first pole of the battery unit 200; the first end of the first control switch 131 is used to connect with the first
  • the second terminal of the low-voltage terminal 111 of the DC-DC conversion module 110 is electrically connected to the first terminal of the second control switch 132, and the second terminal of the first control switch 131 is used to connect with the second pole of the battery unit 200 and the additional power supply
  • the first pole of 120 is electrically connected; the second terminal of the second control switch 132 is used for electrical connection with the second pole of the additional power supply 120 .
  • the first pole is a positive pole
  • the second pole is a negative pole; or, the first pole is a negative pole, and the second pole is a positive pole.
  • the first end of the first control switch 131 is not connected to the second end of the first control switch 131, and the first end of the second control switch 132 is connected to the second end of the second control switch 132. The second end is connected.
  • the first control switch 131 is in the open state, and the second control switch 132 is in the closed state, so that the low voltage terminal of the battery unit 200 and the first DC-DC conversion module 110 111 and the additional power supply 120 are connected in series, and the polarity of the additional power supply 120 is the same as that of the battery unit 200 , and the additional power supply 120 and the battery unit 200 can output voltages with the same polarity.
  • the first control switch 131 is turned off, and the second control switch 132 is turned on state.
  • the first control switch 131 is in a closed state, and the second control switch 132 is in an open state. Therefore, only the battery unit 200 is connected in series with the low voltage terminal 111 of the first DC-DC conversion module 110 .
  • a group of charging and discharging components corresponds to a single battery unit, and the access of the additional power source in the charging and discharging circuit is controlled through the first control switch and the second control switch, further simplifying the structure of the battery forming device and saving into costs.
  • a group of charging and discharging components corresponds to a single battery unit, and the control circuit 130 includes a third control switch 133 .
  • FIG. 10 is a schematic structural diagram of a battery formation device according to some embodiments of the present application.
  • the first sub-end of the low-voltage end 111 of the first DC-DC conversion module 110 is used to electrically connect with the first pole of the battery unit 200; the first end of the third control switch 133 is used to connect with the first The second terminal of the low voltage terminal 111 of the DC-DC conversion module 110 is electrically connected, the second terminal of the third control switch is used for electrical connection with the second pole of the battery unit 200 and the first pole of the additional power supply 120, and the third control switch The third terminal of the switch 133 is used for electrical connection with the second pole of the additional power supply.
  • the first pole is a positive pole
  • the second pole is a negative pole; or, the first pole is a negative pole, and the second pole is a positive pole.
  • the first terminal of the third control switch 133 is not in communication with the second terminal of the third control switch 133, and the first terminal of the third control switch 133 is connected to the second terminal of the third control switch 133.
  • a group of charging and discharging components corresponds to a single battery unit, and the access of the additional power supply in the charging and discharging circuit can be controlled through a third control switch, further simplifying the structure of the battery forming device and reducing the number of battery forming devices The number of components saves formation costs.
  • a group of charging and discharging components corresponds to a plurality of battery units, and the plurality of battery units are specifically a first battery unit and a second battery unit.
  • the number of battery cells contained in the first battery unit and the second battery unit, and the connection manner of the battery cells may be the same or different.
  • a set of charging and discharging components corresponds to the first battery unit and the second battery unit.
  • the control circuit 130 includes a first control switch 131 and a second control switch 132 .
  • FIG. 11 is a schematic structural diagram of a battery formation device according to some embodiments of the present application.
  • the first sub-end of the low-voltage terminal 111 of the first DC-DC conversion module 110 is used to electrically connect with the first pole of the first battery unit 210, and the low-voltage terminal 111 of the first DC-DC conversion module 110
  • the second terminal of the first control switch 131 is used to electrically connect with the second pole of the second battery unit 220; connection, the second terminal of the first control switch 131 is used for electrical connection with the first pole of the second battery unit 220 and the second terminal of the second control switch 132; the first terminal of the second control switch 132 is used for connecting with the additional power supply The second pole electrical connection.
  • the first end of the first control switch 131 is not in communication with the second end of the first control switch 131, and the second end of the second control switch 132
  • the first terminal communicates with the second terminal of the second control switch 132, thereby connecting the first battery unit 210, the additional power supply 120 and the second battery unit 220 in series, and the first battery unit 210, the additional power supply 120 and the second battery unit 220 have the same polarity, and the voltages output by the first battery unit 210 , the additional power supply 120 and the second battery unit 220 are superimposed and then input to the low-voltage terminal of the first DC-DC conversion module 110 .
  • the first control switch 131 is in an open state, and the second control switch 132 is in a closed state.
  • the first control switch 131 is turned on and the second control switch 132 is turned off. Therefore, only the first battery unit 210 , the second battery unit 220 and the low voltage terminal 111 of the first DC-DC conversion module 110 are connected in series.
  • a set of charging and discharging components corresponds to the first battery unit and the second battery unit, and the access of the additional power supply to the charging and discharging circuit is controlled through the first control switch and the second control switch to simplify the battery life.
  • the structure of the formation device saves the cost of formation; moreover, the first control switch and the second control switch are arranged between two battery units, which can effectively reduce the length of connecting wires and save the cost of the battery formation device.
  • a set of charging and discharging components corresponds to the first battery unit and the second battery unit.
  • the control circuit 130 includes a first control switch 131 and a second control switch 132 .
  • FIG. 12 is a schematic structural diagram of a battery formation device according to some embodiments of the present application.
  • the first sub-end of the low-voltage terminal 111 of the first DC-DC conversion module 110 is used to electrically connect with the first pole of the first battery unit 210, and the low-voltage terminal 111 of the first DC-DC conversion module 110
  • the second terminal of the first control switch 131 is used to connect with the second pole of the first battery unit 210 and the first terminal of the second control switch 132 electrically.
  • the second terminal of the first control switch 131 is used for electrical connection with the second pole of the additional power supply 120 and the first pole of the second battery unit 220;
  • the second terminal of the second control switch 132 is used for connecting with the additional power supply 120 first pole electrical connection;
  • the first end of the first control switch 131 is not in communication with the second end of the first control switch 131, and the second end of the second control switch 132 The first end communicates with the second end of the second control switch 132 . That is, when the first battery unit 210 and/or the second battery unit 220 are discharging the battery forming device 100 , the first control switch 131 is turned off, and the second control switch 132 is turned on.
  • the first control switch 131 is in an open state, and the second control switch 132 is in a closed state.
  • the first control switch 131 is turned on and the second control switch 132 is turned off. Therefore, only the first battery unit 210 , the second battery unit 220 and the low voltage terminal 111 of the first DC-DC conversion module 110 are connected in series.
  • a set of charging and discharging components corresponds to the first battery unit and the second battery unit, and the access of the additional power supply to the charging and discharging circuit is controlled through the first control switch and the second control switch to simplify the battery life.
  • the structure of the formation device saves the cost of formation; moreover, the first control switch and the second control switch are arranged between two battery units, which can effectively reduce the length of connecting wires and save the cost of the battery formation device.
  • a set of charging and discharging components corresponds to the first battery unit and the second battery unit.
  • the control circuit 130 includes a third control switch 133 .
  • FIG. 13 is a schematic structural diagram of a battery formation device according to some embodiments of the present application.
  • the first sub-end of the low-voltage terminal 111 of the first DC-DC conversion module 110 is used to electrically connect with the first pole of the first battery unit 210, and the low-voltage terminal 111 of the first DC-DC conversion module 110
  • the second terminal of the third control switch 133 is used for electrical connection with the second pole of the second battery unit 220;
  • the first terminal of the third control switch 133 is used for electrical connection with the second pole of the first battery unit 210;
  • the second terminal is used for electrical connection with the first pole of the additional power supply 120 , and the third terminal of the third control switch 133 is used for electrical connection with the first pole of the second battery unit 220 .
  • the first terminal of the third control switch 133 is connected with the second terminal of the third control switch to connect the first battery unit 210,
  • the additional power supply 120 and the second battery unit 220 are connected in series, and the output voltage polarities of the first battery unit 210 , the additional power supply 120 and the second battery unit 220 are consistent.
  • the first battery unit 210 , the additional power supply 120 and the second battery unit 220 The output voltage is superimposed and input to the low voltage terminal 111 of the first DC-DC conversion module 110 .
  • the first terminal of the third control switch 133 communicates with the second terminal of the third control switch.
  • the first battery unit 210 and/or the second battery unit 220 when the first battery unit 210 and/or the second battery unit 220 is charging the battery unit 200, or, when the first battery unit 210 and/or the second battery unit 220 is discharging the battery formation device 100 but the second When the sum of the output voltages of the first battery unit 210 and the second battery unit 220 is greater than or equal to the first voltage threshold, connect the first end of the third control switch 133 with the third end of the third control switch, so that only the first The battery unit 210 and the second battery unit 220 are connected in series with the low voltage end 111 of the first DC-DC conversion module 110 .
  • a set of charging and discharging components corresponds to the first battery unit and the second battery unit, and a control switch is used to control the access of additional power in the charging and discharging circuit, further reducing the number of components included in the battery formation device Quantity saves formation cost; moreover, the third control switch is arranged between two battery units, which can effectively reduce the length of connecting wires and save the cost of the battery formation device.
  • the additional power supply is specifically a second DC-DC conversion module.
  • FIG. 14 is a schematic structural diagram of a battery formation device according to some embodiments of the present application. As shown in FIG. 14 , the high voltage end 122 of the second DC-DC conversion module 120 is used for electrical connection with the DC bus 140 , and the low voltage end 121 of the second DC-DC conversion module 120 is used for electrical connection with the control circuit 130 .
  • the control circuit 130 is used to connect the low voltage terminal 121 of the second DC-DC conversion module 120 , the low voltage terminal 111 of the first DC-DC conversion module and the battery unit 200 in series.
  • the polarity of the voltage output from the low-voltage terminal 121 of the second DC-DC conversion module 120 is consistent with the polarity of the voltage output by the battery unit, so that the second DC-DC conversion module 120
  • the voltage output by the low-voltage terminal 121 of the battery cell is superimposed and then input to the low-voltage terminal 111 of the first DC-DC conversion module, so as to increase the input voltage of the first DC-DC conversion module and avoid the occurrence of the first DC-DC conversion module.
  • the disadvantage of the input voltage being less than the minimum input voltage threshold of the first DC-DC conversion module.
  • the second DC-DC conversion module is used as an additional power source.
  • the voltage output by the low-voltage terminal of the second DC-DC conversion module is the same as that of the battery unit.
  • the output voltage is superimposed and input to the low-voltage end of the first DC-DC conversion module, increasing the input voltage of the first DC-DC conversion module, and avoiding that the input voltage of the first DC-DC conversion module is lower than that of the first DC-DC conversion module
  • the second DC-DC conversion module has the characteristics of low power consumption and small size, which is conducive to reducing the energy consumption of the battery formation device and reducing the volume of the battery formation device.
  • the battery formation device 100 further includes: an AC-DC conversion module 160 .
  • FIG. 15 is a schematic structural diagram of a battery formation device according to some embodiments of the present application.
  • the AC terminal 161 of the AC-DC conversion module 160 is used for electrical connection with the power grid
  • the DC terminal 162 of the AC-DC conversion module 160 is used for electrical connection with the DC bus 140 .
  • the AC-DC conversion module 160 is used to convert the DC voltage input from the DC terminal 162 of the AC-DC conversion module 160 into an AC voltage when the battery unit 200 is discharging the battery forming device 100 , and through the AC-DC conversion module 160
  • the AC terminal 161 outputs an AC voltage to the grid
  • the AC-DC conversion module 160 is used to convert the AC voltage input by the AC terminal 161 of the AC-DC conversion module 160 into a DC voltage when the battery unit 200 is discharging the battery formation device 100 , and output the DC voltage to the DC bus through the DC terminal 162 of the AC-DC conversion module.
  • the AC power of the grid can be converted into DC power and used for charging the battery unit; the DC power output by the battery unit can also be converted into AC power Output to the power grid, so that the battery formation device can be applied to the scene of alternating current, expanding the use range of the battery formation device.
  • the battery formation device 100 includes: a first DC-DC conversion module 110, a second DC-DC conversion module 120, a first control switch 131, a second control switch 132, a DC bus 140, and AC-DC conversion module 160.
  • FIG. 16 is a schematic structural diagram of a battery formation device according to some embodiments of the present application.
  • the first sub-end of the low-voltage end of the first DC-DC conversion module 110 is electrically connected to the first pole of the battery unit; the second sub-end of the low-voltage end of the first DC-DC conversion module 110 is connected to the first control switch.
  • the first end is electrically connected to the first sub-end of the low-voltage end of the second DC-DC conversion module 120; the second sub-end of the low-voltage end of the second DC-DC conversion module 120 is electrically connected to the first end of the second control switch 132; The second end of the second control switch 132 is electrically connected to the second pole of the battery unit 200 , and the second end of the first control switch 131 is electrically connected to the second pole of the battery unit 200 .
  • the polarity of the low-voltage end of the second DC-DC conversion module 120 is consistent with the polarity of the battery cell; the high-voltage end 112 of the first DC-DC conversion module 110, the high-voltage end 122 of the second DC-DC conversion module 120, and the AC -
  • the DC end 162 of the DC conversion module 160 is electrically connected to the DC bus; the AC end 161 of the AC-DC conversion module 160 is electrically connected to the grid.
  • the first control switch 131 is turned off, and the second control switch 132 is turned on, so that the battery unit 200, the first DC -The low-voltage end of the DC conversion module 110 and the low-voltage end of the second DC-DC conversion module 120 are connected in series, wherein the low-voltage end of the first DC-DC conversion module 110 is an electrical device, and the low-voltage end of the first DC-DC conversion module 110 is an input end
  • the low-voltage end of the second DC-DC conversion module 110 is the power supply device
  • the low-voltage end of the second DC-DC conversion module 120 is the output end
  • the polarity of the low-voltage end 122 of the second DC-DC conversion module 120 is the same as that of the battery unit 200 Therefore, the voltage output by the battery unit 200 is superimposed on the voltage output by the low-voltage terminal 122 of the second DC-DC conversion module 120, and then input
  • the first DC-DC conversion module 110 boosts the voltage input from the low-voltage end and then outputs it to the DC bus through the high-voltage end 112 .
  • the DC bus is connected to input the voltage to the DC terminal 162 of the AC-DC conversion module 160 , and the AC-DC conversion module 160 converts the DC power into AC power and transmits it to the power grid through the AC terminal 161 .
  • the capacity detection equipment connected to the grid can obtain the capacity information of the battery unit.
  • the first control switch 131 When the battery formation device 100 is charging the battery unit 200, or when the battery unit 200 is discharging to the battery formation device 100 and the output voltage of the battery unit 100 is greater than or equal to the first voltage threshold, the first control switch 131 is closed and the second control When the switch 132 is turned off, the battery unit 200 is connected in series with the first DC-DC conversion module 110 .
  • the AC-DC conversion module 160 converts the AC voltage of the power grid into a DC voltage and then outputs it to the DC bus; the DC bus then transmits the voltage to the high-voltage terminal 112 of the first DC-DC conversion module 110, and passes through the low-voltage terminal 111 after step-down processing. An output voltage, which is used to charge the battery cells.
  • FIG. 17 is a schematic flowchart of a control method of a battery formation device according to some embodiments of the present application.
  • control method includes the following steps:
  • Step S1710 receiving a battery unit discharge control instruction.
  • the battery formation device can receive control instructions from the central computer, and the control instructions can specifically be discharge control instructions and charge control instructions.
  • the discharge control command is used to discharge the battery unit to the battery formation device
  • the charge control command is used to cause the battery formation device to charge the battery unit.
  • the charging mode information sent by the central computer can also be received, the charging mode information specifically indicates the charging mode of the battery unit, and the charging mode can be a constant current mode or a constant voltage mode.
  • the charging or discharging time limit parameter sent by the central computer can also be received.
  • the time limit parameter specifies the time range within which the battery cell is charged or discharged.
  • the current accuracy parameter sent by the central computer can also be received, and the current accuracy parameter indicates the accuracy range of the current during charging or discharging.
  • Step S1720 control the low-voltage terminal of the first DC-DC conversion module in the battery formation device, the battery unit and the additional power supply to be connected in series; and control the battery unit to discharge the battery formation device.
  • the battery formation device controls the low-voltage terminal of the first DC-DC conversion module in the battery formation device, the battery unit and the additional power supply to be connected in series, and controls the battery unit to discharge the battery formation device.
  • the implementation method in this embodiment it is possible to respond to the discharge control command issued by the central computer in a timely manner, and connect the additional power supply in series to the low-voltage end of the first DC-DC conversion module and the discharge circuit formed by the battery unit, thereby increasing the input to the discharge circuit.
  • the voltage of the low-voltage terminal of the first DC-DC conversion module avoids that the voltage input to the low-voltage terminal of the first DC-DC conversion module is less than the minimum threshold value of the input voltage of the first DC-DC conversion module, so that each of the battery cells can The battery cells are fully discharged, avoiding the technical disadvantages of poor battery cell pooling effect and poor accuracy of detected battery capacity caused by the inability of each battery cell in the battery cell to be fully discharged.
  • the method further includes: detecting the output voltage of the battery unit, and if it is detected that the output voltage of the battery unit is lower than the first voltage threshold, controlling the first DC-DC conversion module in the battery formation device The low-voltage end, the battery unit and the additional power supply are connected in series.
  • the additional power supply is started only when the battery unit is in a discharging state and the output voltage of the battery unit is lower than the first voltage threshold, and the additional power supply is connected in series to the low-voltage terminal of the first DC-DC conversion module and In the discharge circuit composed of battery cells, the overall energy consumption of the battery formation device is further saved, and the cost of formation treatment of the battery formation device is reduced.
  • the method further includes: if it is detected that the output voltage of the battery unit is lower than the first voltage threshold, after suspending the AC-DC conversion module in the battery forming device, controlling the first The low-voltage terminal of a DC-DC conversion module, the battery unit and the additional power supply are connected in series; and after the low-voltage terminal of the first DC-DC conversion module in the control battery formation device, the battery unit and the additional power supply are connected in series, the AC-DC conversion is restarted module.
  • the first DC -The short peak voltage of the DC conversion module affects the service life of the first DC-DC conversion module.
  • the AC-DC conversion module is first suspended to prevent the AC-DC conversion module from continuously outputting high voltage to the first DC-DC conversion module via the DC bus, and then the additional power supply is connected in series to the low-voltage end of the first DC-DC conversion module And in the discharge circuit formed by the battery unit, so as to avoid the transient peak voltage of the first DC-DC conversion module and prolong the service life of the first DC-DC conversion module.
  • the method further includes: collecting battery state information of the battery unit, and feeding back the battery state information to the central computer.
  • the battery state information may specifically include at least one of the following information: board temperature, currently executed control command, charging and discharging mode, and actual current value.
  • the battery state information of the battery unit is collected and fed back in real time, which facilitates timely discovery of the state of the battery unit during the pooling process, timely discovery of abnormal states and timely response to abnormal states.
  • the method further includes: judging whether the charging time of the battery forming device for charging the battery unit exceeds the preset time; if so, sending an alarm message to the central computer; and receiving the central computer based on the The abort instruction sent by the above-mentioned alarm information is used to suspend the AC-DC conversion module in the battery formation device.
  • the central computer sends alarm information; the central computer issues an instruction for stopping the output of the AC-DC conversion module according to the alarm information, so as to suspend the output of the AC-DC conversion module.
  • Adopt the implementation mode in this embodiment by determining whether the battery unit is abnormal according to the charging duration of the battery unit, when it is determined that the battery unit is abnormal, send an alarm message to the central computer in time, so as to monitor the abnormality of the battery unit processing; and in the process of processing, the output of the AC-DC conversion module is suspended, on the one hand, the safety of the battery unit and the battery formation device is protected, and on the other hand, the energy consumption of the battery formation device is reduced, and the formation cost is saved.
  • the method further includes: judging whether the output voltage of the battery unit exceeds the second voltage threshold; if so, sending an alarm message to the central computer; receiving a suspension instruction sent by the central computer based on the alarm information , to suspend the output of the battery cell according to the suspend command.
  • the alarm information will be fed back to the central computer in time; and according to the suspension sent by the central computer command to stop the output of the battery cell in time.
  • Adopt the implementation mode in this embodiment by determining whether there is abnormality according to the discharge voltage of the battery unit, when it is determined that there is abnormality, send alarm information to the central computer in time, so as to process the abnormal state; and in the process of processing , to stop the output of the battery unit, on the one hand to protect the safety of the battery unit and the battery formation device, and on the other hand to reduce the energy consumption of the battery unit and save the cost of formation.
  • FIG. 18 is a schematic structural diagram of a battery formation control system according to some embodiments of the present application.
  • the battery formation control system 400 includes a battery formation device 100 and an intermediate computer 300 .
  • the intermediate computer 300 establishes a communication connection with the battery formation device 100 .
  • the intermediate computer 300 is used to send a charge control command or a discharge control command to the battery formation device 100 .
  • the battery formation device 100 is used to control the battery unit 200 to discharge the battery formation device 100 according to the discharge control instruction; or, the battery formation device 100 is used to control the battery formation device 100 to charge the battery unit 200 according to the charge control instruction.

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Abstract

本申请公开了一种电池化成装置、电池化成装置的控制方法及控制系统。电池化成装置包括：第一DC-DC转换模块、附加电源及控制电路；第一DC-DC转换模块低压端与控制电路连接，第一DC-DC转换模块的高压端与直流母线连接；第一DC-DC转换模块在电池单元为电池化成装置放电时，将低压端输入的第一电压转换为第二电压，通过高压端输出第二电压；附加电源与控制电路连接，用于输出附加电压，该附加电源的极性与电池单元的极性一致；控制电路在电池单元为电池化成装置放电时，将第一DC-DC转换模块的低压端、电池单元以及附加电源串联。本申请实施例的电池化成装置能够解决电池无法充分放电至电池化成装置而引起的电池化成效果差以及检测的电池容量准确度低的技术问题。

Description

电池化成装置、电池化成装置的控制方法、及控制系统 技术领域
本申请涉及电池领域，具体涉及一种电池化成装置、电池化成装置的控制方法及控制系统。
背景技术
电池化成是电池生产工艺中一项重要工序，电池化成具体是利用电池化成装置对电池进行充电和放电，从而达到提升电池性能以及检测电池容量等目的。
然而，采用目前的电池化成装置，会存在电池无法充分放电的弊端，从而降低电池化成效果以及降低检测的电池容量的准确度。
发明内容
鉴于上述问题，本申请提供一种电池化成装置、电池化成装置的控制方法及控制系统，能够解决电池无法充分放电而引起的电池化成效果差以及检测的电池容量准确度低的技术问题。
第一方面，本申请提供了一种电池化成装置，该装置包括：第一DC-DC转换模块、附加电源以及控制电路；第一DC-DC转换模块的低压端用于与控制电路电气连接，第一DC-DC转换模块的高压端用于与直流母线电气连接；第一DC-DC转换模块用于在电池单元为电池化成装置放电时，将低压端输入的第一电压转换为第二电压，并通过高压端输出第二电压；其中，第二电压高于第一电压；附加电源用于与控制电路电气连接，以及附加电源用于输出附加电压；其中，附加电源的极性与电池单元的极性一致；控制电路用于与电池单元、第一DC-DC转换模块的低压端、以及附加电源电气连接；控制电路用于在电池单元为电池化成装置放电时，将第一DC-DC转换模块的低压端、电池单元以及附加电源串联。
本申请实施例的技术方案中，在电池单元为电池化成装置放电时，由控制电路将第一DC-DC转换模块的低压端、电池单元以及附加电源串联，并且电池单元与附加电源的极性相同，从而电池单元与附加电源输出的电压极性一致，电池单元与附加电源输出的电压叠加后输入至第一DC-DC转换模块的低压端，避免出现第一DC-DC转换模块的输入电压小于第一DC-DC转换模块的最低输入电压阈值的情况，从而能够使电池单元中的各个电池单体充分放电，继而避免因电池单元中的各个电池单体无法充分放电而引起的电池单元池化效果差以及检测的电池容量精度差的技术弊端。
在一些实施例中，控制电路还用于在电池化成装置为电池单元充电时，将第一DC-DC转换模块的低压端以及电池单元串联。采用该种方式，一方面能够在电池化成装置为电池单元充电时，避免附加电源对该充电过程的影响；另一方面附加电源在电池化成装置为电池单元充电时可以不输出电压，能够减少电池化成装置整体的能耗。
在一些实施例中，该装置还包括：检测模块，检测模块用于与电池单元以及控制电路电气连接，检测模块用于检测电池单元的输出电压；则控制电路进一步用于，在电池单元为电池化成装置放电，并且检测模块检测到电池单元的输出电压小于第一电压阈值时，将第一DC-DC转换模块的低压端、电池单元以及附加电源串联。采用该方式，通过检测模块在电池单元放电时检测该电池单元的输出电压，在电池单元处于放电状态并且电池单元的输出电压小于第一电压阈值时，才启动附加电源，将附加电源串联至由第一DC-DC转换模块的低压端与电池单元组成的放电回路中，进一步降低了电池化成装置的整体能耗，降低电池化成装置的化成处理成本。
在一些实施例中，所述电池单元为单个。通过一组充放电组件向单个电池单元进行化成处理，能够避免其他电池单元化成过程对本电池单元化成过程的干扰，并有利于提升该电池单元的容量检测的精准度。
在一些实施例中，所述控制电路包括第一控制开关以及第二控制开关；所述第一DC-DC转换模块的低压端的第一子端用于与所述电池单元的第一极电气连接；所述第一控制开关的第一端用于与所述第一DC-DC转换模块的低压端的第二子端以及所述附加电源的第二极电气连接，所述第一控制开关的第二端用于与所述电池单元的第二极以及所述第二控制开关的第二端电气连接；所述第二控制开关的第一端用于与所述附加电源的第一极电气连接；其中，所述电池单元为所述电池化成装置放电时，所述第一控制开关的第一端与所述第一控制开关的第二端未联通，所述第二控制开关的第一端与所述第二控制开关的第二端联通。采用该种方式，一组充放电组件对应单个电池单元，并通过第一控制开关以及第二控制开关来控制附加电源在充放电回路的接入，进一步精简电池化成装置的结构，节约化成成本。
在一些实施例中，所述控制电路包括第一控制开关以及第二控制开关；所述第一DC-DC转换模块的低压端的第一子端用于与所述电池单元的第一极电气连接；所述第一控制开关的第一端用于与所述第一DC-DC转换模块的低压端的第二子端以及所述第二控制开关的第一端电气连接，所述第一控制开关的第二端用于与所述电池单元的第二极以及所述附加电源的第一极电气连接；所述第二控制开关的第二端用于与所述附加电源的第二极电气连接；其中，所述电池单元为所述电池化成装置放电时，所述第一控制开关的第一端与所述第一控制开关的第二端未联通，所述第二控制开关的第一端与所述第二控制开关的第二端联通。采用该种方式，一组充放电组件对应单个电池单元，并通过第一控制开关以及第二控制开关来控制附加电源在充放电回路的接入，进一步精简电池化成装置结构，节约化成成本。
在一些实施例中，所述控制电路包括第三控制开关；所述第一DC-DC转换模块的低压端的第一子端用于与所述电池单元的第一极电气连接；所述第三控制开关的第一端用于与所述第一DC-DC转换模块的低压端的第二子端电气连接，所述第三控制开关的第二端用于与所述电池单元的第二极以及所述附加电源的第一极电气连接，所述第三控制开关的第三端用于与所述附加电源的第二极电气连接；其中，所述电池单元为所述电池化成装置放电时，所述第三控制开关的第一端与所述第三控制开关的第二端未联通，所述第三控制开关的第一端与所述第三控制开关的第三端联通。采用该种方式，一组充放电组件对应单个电池单元，并通过一个第三控制开关即可控制附加电源在充放电回路的接入，进一步精简电池化成装置结构，减少电池化成装置元件的数目，节约化成成本。
在一些实施例中，所述电池单元包括第一电池单元以及第二电池单元。通过一组充放电组件对多个电池单元进行化成处理，有效提升充放电组件的利用率，节约电池化成装置能耗及成本。
在一些实施例中，所述控制电路包括第一控制开关以及第二控制开关；所述第一DC-DC转换模块的低压端的第一子端用于与所述第一电池单元的第一极电气连接，所述第一DC-DC转换模块的低压端的第二子端用于与所述第二电池单元的第二极电气连接；所述第一控制开关的第一端用于与所述第一电池单元的第二极以及所述附加电源的第一极电气连接，所述第一控制开关的第二端用于与所述第二电池单元的第一极以及所述第二控制开关的第二端电气连接；所述第二控制开关的第一端用于与所述附加电源的第二极电气连接；其中，所述电池单元为所述电池化成装置放电时，所述第一控制开关的第一端与所述第一控制开关的第二端未联通，所述第二控制开关的第一端与所述第二控制开关的第二端联通。采用该种方式，一组充放电组件对应第一电池单元以及第二电池单元，并通过第一控制开关以及第二控制开关来控制附加电源在充放电回路的接入，精简电池化成装置的结构，节约化成成本；并且，第一控制开关以及第二控制开关设置在两个电池单元之间，能够有效减少连接导线长度，节约电池化成装置的成本。
在一些实施例中，所述控制电路包括第一控制开关以及第二控制开关；所述第一DC-DC转换模块的低压端的第一子端用于与所述第一电池单元的第一极电气连接，所述第 一DC-DC转换模块的低压端的第二子端用于与所述第二电池单元的第二极电气连接；所述第一控制开关的第一端用于与所述第一电池单元的第二极以及所述第二控制开关的第一端电气连接，所述第一控制开关的第二端用于与所述附加电源的第二极以及所述第二电池单元的第一极电气连接；所述第二控制开关的第二端用于与所述附加电源的第一极电气连接；其中，所述电池单元为所述电池化成装置放电时，所述第一控制开关的第一端与所述第一控制开关的第二端未联通，所述第二控制开关的第一端与所述第二控制开关的第二端联通。采用该种方式，一组充放电组件对应第一电池单元以及第二电池单元，并通过第一控制开关以及第二控制开关来控制附加电源在充放电回路的接入，精简电池化成装置的结构，节约化成成本；并且，第一控制开关以及第二控制开关设置在两个电池单元之间，能够有效减少连接导线长度，节约电池化成装置的成本。
在一些实施例中，所述控制电路包括第三控制开关；所述第一DC-DC转换模块的低压端的第一子端用于与所述第一电池单元的第一极电气连接，所述第一DC-DC转换模块的低压端的第二子端用于与所述第二电池单元的第二极电气连接；所述第三控制开关的第一端用于与所述第一电池单元的第二极电气连接，所述第三控制开关的第二端用于与所述附加电源的第一极电气连接，所述第三控制开关的第三端用于与所述第二电池单元的第一极电气连接；其中，所述电池单元为所述电池化成装置放电时，所述第三控制开关的第一端与所述第三控制开关的第二端联通。采用该种方式，一组充放电组件对应第一电池单元以及第二电池单元，并通过一个控制开关来控制附加电源在充放电回路的接入，进一步减少电池化成装置包含的元件数量，节约化成成本；并且，第三控制开关设置在两个电池单元之间，能够有效减少连接导线长度，节约电池化成装置的成本。
在一些实施例中，所述附加电源为第二DC-DC转换模块；所述第二DC-DC转换模块的高压端用于与所述直流母线电气连接，所述第二DC-DC转换模块的低压端用于在所述电池单元为所述电池化成装置放电时，与所述第一DC-DC转换模块的低压端以及所述电池单元串联。采用该种方式，将第二DC-DC转换模块作为附加电源，一方面能够在电池单元为电池化成装置放电时，第二DC-DC转换模块的低压端输出的电压与电池单元输出的电压叠加后输入至第一DC-DC转换模块的低压端，提高第一DC-DC转换模块的输入电压，避免出现第一DC-DC转换模块的输入电压小于第一DC-DC转换模块的最低输入电压阈值的弊端；另一方面，第二DC-DC转换模块具有功耗低，体积小的特点，从而有利于降低电池化成装置的能耗，并减小电池化成装置的体积。
在一些实施例中，该装置还包括：AC-DC转换模块；所述AC-DC转换模块的交流端用于与电网电气连接，所述AC-DC转换模块的直流端用于与直流母线电气连接；所述AC-DC转换模块用于，在所述电池单元为所述电池化成装置放电时，将所述AC-DC转换模块的直流端输入的直流电压转换为交流电压，并通过所述AC-DC转换模块的交流端输出所述交流电压；以及，所述AC-DC转换模块用于，在所述电池化成装置为所述电池单元充电时，将所述AC-DC转换模块的交流端输入的交流电压转换为直流电压，并通过所述AC-DC转换模块的直流端输出所述直流电压。采用该种方式，通过在电池化成装置中设置AC-DC转换模块，可以将电网的交流电转换为直流电，并用于对电池单元的充电；还可以将电池单元输出的直流电转换为交流电输出至电网，从而可以使本电池化成装置适用于交流电的场景中，扩大电池化成装置的使用范围。
第二方面，本申请提供了一种用于上述电池化成装置的控制方法，包括：接收电池单元放电控制指令；控制电池化成装置中的第一DC-DC转换模块的低压端、所述电池单元以及附加电源串联；以及控制所述电池单元为所述电池化成装置放电。
本申请实施例的技术方案中，电池化成装置能够及时响应中位机下发的放电控制指令，将附加电源串联至第一DC-DC转换模块的低压端以及电池单元构成的放电回路中，从而提高输入至第一DC-DC转换模块的电压，避免出现第一DC-DC转换模块的输入电压小于第一DC-DC转换模块的最低输入电压阈值，从而能够使电池单元中的各个电池单体 充分放电，避免因电池单元中的各个电池单体无法充分放电而引起的电池单元池化效果差以及检测的电池容量精度差的技术弊端。
在一些实施例中，所述控制电池化成装置中的第一DC-DC转换模块的低压端、所述电池单元以及附加电源串联进一步包括：检测所述电池单元的输出电压；若检测到所述电池单元的输出电压小于第一电压阈值，则控制电池化成装置中的第一DC-DC转换模块的低压端、所述电池单元以及附加电源串联。采用该种方式，在电池单元处于放电状态并且电池单元的输出电压小于第一电压阈值时，才启动附加电源，将附加电源串联至由第一DC-DC转换模块的低压端与电池单元组成的放电回路中，进一步降低了电池化成装置的整体能耗，降低电池化成装置的化成处理成本。
在一些实施例中，所述若检测到所述电池单元的输出电压小于第一电压阈值，则控制电池化成装置中的第一DC-DC转换模块的低压端、所述电池单元以及附加电源串联进一步包括：若检测到所述电池单元的输出电压小于第一电压阈值，在暂停所述电池化成装置AC-DC转换模块后，控制电池化成装置中的第一DC-DC转换模块的低压端、所述电池单元以及附加电源串联；并在控制电池化成装置中的第一DC-DC转换模块的低压端、所述电池单元以及附加电源串联后，重新启动所述AC-DC转换模块。采用该种方式，先暂停AC-DC转换模块，避免AC-DC转换模块经由直流母线持续向第一DC-DC转换模块输出高电压，此后再将附加电源串联至第一DC-DC转换模块的低压端以及电池单元构成的放电回路中，避免了第一DC-DC转换模块出现短暂的峰值电压，延长第一DC-DC转换模块的使用寿命。
在一些实施例中，所述方法还包括：采集所述电池单元的电池状态信息，并向中位机反馈所述电池状态信息。采用本实施例中的实施方式，实时采集并反馈电池单元的电池状态信息，以便于及时发现电池单元在池化过程中的状态，并利于及时发现异常状态及对异常状态进行及时响应。
在一些实施例中，所述方法还包括：判断所述电池化成装置为所述电池单元充电的充电时长是否超出预设时长；若是，则向中位机发送报警信息；并接收中位机基于所述报警信息发送的中止指令，暂停所述电池化成装置中的AC-DC转换模块。采用该种方式，通过根据电池单元的充电时长确定电池单元是否存在异常，在确定出电池单元存在异常的情况下及时向中位机发送报警信息，以便于对电池单元的异常进行处理；并且在处理过程中，中止AC-DC转换模块的输出，一方面保护电池单元及电池化成装置的安全，另一方面减少电池化成装置的能耗，节约化成成本。
在一些实施例中，所述方法还包括：判断所述电池单元的输出电压是否超出第二电压阈值；若是，则向中位机发送报警信息；接收中位机基于所述报警信息发送的中止指令，根据所述中止指令暂停所述电池单元的输出。采用该种方式，通过根据电池单元的放电电压确定是否存在异常，在确定存在异常的情况下及时向中位机发送报警信息，以便于对异常状态进行处理；并且在处理过程中，中止电池单元的输出，一方面保护电池单元及电池化成装置的安全；另一方面减少电池单元的能耗，节约化成成本。
第三方面，本申请提供了一种电池化成控制系统，包括：上述电池化成装置，以及中位机；所述中位机与所述电池化成装置建立有通信连接；所述中位机用于向所述电池化成装置发送充电控制指令或者放电控制指令；所述电池化成装置用于根据所述放电控制指令，控制所述电池单元为所述电池化成装置放电；或者，所述电池化成装置用于根据所述充电控制指令，控制所述电池化成装置为所述电池单元充电。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
通过阅读对下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本申请的限制。而且在全部附图中，用相同的附图标号表示相同的部件。在附图中：
图1为现有技术中的电池化成装置的结构示意图；
图2为本申请一些实施例的电池化成装置的结构示意图；
图3为本申请一些实施例的第一DC-DC转换模块的结构示意图；
图4为本申请一些实施例的电池单元为电池化成装置放电时的等效电路的示意图；
图5为本申请一些实施例的电池化成装置的结构示意图；
图6为本申请一些实施例的电池化成装置为电池单元充电时的等效电路的示意图；
图7为本申请一些实施例的电池化成装置的结构示意图；
图8为本申请一些实施例的电池化成装置的结构示意图；
图9为本申请一些实施例的电池化成装置的结构示意图；
图10为本申请一些实施例的电池化成装置的结构示意图；
图11为本申请一些实施例的电池化成装置的结构示意图；
图12为本申请一些实施例的电池化成装置的结构示意图；
图13为本申请一些实施例的电池化成装置的结构示意图；
图14为本申请一些实施例的电池化成装置的结构示意图；
图15为本申请一些实施例的电池化成装置的结构示意图；
图16为本申请一些实施例的电池化成装置的结构示意图；
图17是本申请一些实施例的电池化成装置的控制方法的流程示意图；
图18是本申请一些实施例的电池化成系统的结构示意图；
具体实施方式中的附图标号如下：
电池化成装置100，电池单元200，中位机300，电池化成系统400；
第一DC-DC转换模块110，附加电源120，控制电路130，直流母线140，检测模块150，AC-DC转换模块160；
第一DC-DC转换模块的低压端111，第一DC-DC转换模块的高压端112；
AC-DC转换模块的交流端161，AC-DC转换模块的直流端162；
第一电池单元210，第二电池单元220；
第一控制开关131，第二控制开关132，第三控制开关133。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是 指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
目前，随着科技及社会的不断发展，动力电池被广泛应用到电动车等电动交通工具、清洁能源等储能电源系统以及其他领域中。动力电池在制作成型后，需要通过电池化成装置为其充放电，该过程即为动力电池的化成过程。动力电池的化成过程不仅可以激活动力电池，提升动力电池的整体性能，还可以在化成过程中检测动力电池的容量，为动力电池性能的评估提供基础。
参考图1，现有技术中的电池化成装置包含一个DC-DC转换模块，DC-DC转换模块与电池单元串联。电池单元处于充电模式时，DC-DC转换模块会将来自电网的电压经降压转换后传输至电池单元，以对电池单元充电；在电池单元处于放电模式时，DC-DC转换模块会将电池单元的输出电压经过升压转换后传输至电网。
本发明人在实施过程中注意到，在电池单元处于放电模式时，即电池单元向电池化成装置放电过程中，会存在部分电池单体已充分放电，而另一部分电池单体仍保留有部分电量的情况。在该种情况下，电池单元整体的输出电压较低，然而DC-DC转换模块具有相应的输入电压幅值限制，在电池单元的输出电压低于DC-DC转换模块的最低输入电压阈值时，会使得电池单元的输出电压无法经由DC-DC转换模块传输至电网，导致电池单元中的部分电池单体无法充分放电，从而降低电池单元的化成效果以及降低电池单元的容量检测精度。
为解决电池单元无法充分放电至电池化成装置而引起的电池化成效果差以及检测的电池容量准确度低的技术问题。本发明人经过深入研究，设计了一种电池化成装置，通过在电池单元向DC-DC转换模块放电过程中，在DC-DC转换模块以及电池单元的回路中串联一个与电池单元极性相同的附加电源，从而来增加DC-DC转换模块的输入电压。采用该种结构的电池化成装置能够使电池单元各电池单体充分放电，从而提升电池化成效果差以及提高检测的电池容量的准确度。
本申请实施例公开的电池化成装置可以但不限于应用在锂离子电池、铅酸电池、镍氢电池等蓄电池的化成过程中。蓄电池又称可充电电池、或二次电池等等。则本申请实施例中所描述的电池具体是指蓄电池。
本申请实施例中所描述的电池单元是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。不同的电池单元中包含的电池单体的数目可以相同，也可以不 同。当电池单元中包含多个电池单体时，电池单元中包含的多个电池单体可以以并联方式连接，也可以以串联方式连接。作为一种可选的电池单体结构，电池单体包括正极极片、负极极片、电解液和隔离膜。
本申请实施例中所描述的DC-DC转换模块是指直流转直流变换器，DC-DC转换模块用于将一个电压值的电能转换为另一个电压值的电能。本申请实施例中的DC-DC转换模块包括高压端以及低压端。高压端用于输入或输出相较于低压端更高的电能，低压端用于输入或输出相较于高压端更低的电能。
为了更好地理解本申请，下面结合图1至图18对本申请的实施例进行详细描述。
根据本申请的一些实施例，参照图2、图3以及图4。图2是本申请一些实施例的电池化成装置的结构示意图，图3是本申请一些实施例的第一DC-DC转换模块的结构示意图，图4为本申请一些实施例的电池单元为电池化成装置放电时的等效电路的示意图。
如图2所示，电池化成装置100包括：第一DC-DC转换模块110、附加电源120以及控制电路130。第一DC-DC转换模块110、附加电源120以及电池单元200分别用于与控制电路130电气连接。控制电路130在电池单元200为电池化成装置100放电时，将第一DC-DC转换模块110、电池单元200以及附加电源120串联。
进一步参照图3，第一DC-DC转换模块110包括低压端111以及高压端112，低压端111用于与控制电路130电气连接，高压端112用于与直流母线140电气连接。第一DC-DC转换模块110用于在电池单元200为电池化成装置100放电时，将低压端111输入的第一电压转换为第二电压，并通过高压端112输出该第二电压；其中，第二电压高于第一电压。从而第一DC-DC转换模块110在电池单元200为电池化成装置100放电时，将输入的电压进行升压处理后输出至直流母线140。可选的，相应地，第一DC-DC转换模块110还用于在电池化成装置100为电池单元200充电时，将直流母线140输入至高压端112的电压经过降压处理后从低压端111输出。
在一种可选的实施方式中，第一DC-DC转换模块110具体为隔离式DC-DC转换转换器。采用该种结构，第一DC-DC转换模块110的输入电路与输出电路相互隔离，互不干扰，从而精简了电池化成装置的结构，降低电池化成装置的尺寸及成本。
结合图2及图3，附加电源120用于与控制电路130电气连接，该附加电源120还用于输出附加电压，该附加电源120的极性与电池单元200的极性一致。
控制电路130具体用于在电池单元200为电池化成装置100放电时，将第一DC-DC转换模块的低压端111、电池单元200以及附加电源120串联。参考图4，图4为本申请一些实施例的电池单元为电池化成装置放电时的等效电路的示意图。如图4所示，电池单元200为电池化成装置100放电时，第一DC-DC转换模块的低压端111、电池单元200以及附加电源120串联。又由于附加电源120与电池单元200极性一致，附加电源120与电池单元200输出的电压极性一致，附加电源120与电池单元200输出电压的叠加幅值等于附加电源120输出电压幅值与电池单元200输出电压幅值的和，由此提高第一DC-DC转换模块的输入电压幅值。
本实施例中，通过在电池单元为电池化成装置放电时，由控制电路将第一DC-DC转换模块的低压端、电池单元以及附加电源串联，并且电池单元与附加电源的极性相同，从而电池单元与附加电源输出的电压极性相同，继而提升第一DC-DC转换模块的输入电压，避免出现第一DC-DC转换模块的输入电压小于第一DC-DC转换模块的最低输入电压阈值，从而能够使电池单元中的各个电池单体充分放电，避免因电池单元中的各个电池单体无法充分放电而引起的电池单元池化效果差以及检测的电池容量精度差的技术弊端。
在一些实施例中，可选的，参考图5，图5为本申请一些实施例的电池化成装置的结构示意图。如图5所示，一个第一DC-DC转换模块110、一个附加电源120以及一个控制电路130构成一组充放电组件，每组充放电组件用于对相应的电池单元200进行化成处理。具体地，每组充放电组件中第一DC-DC转换模块110的高压端112均电气 连接于直流母线。采用该种结构，能够同时对多组电池单元进行化成处理，提升化成处理效率。
在一些实施例中，可选的，控制电路130还用于在电池化成装置100为电池单元200充电时，将第一DC-DC转换模块110的低压端111以及电池单元200串联。
参考图6，图6为本申请一些实施例的电池化成装置为电池单元充电时的等效电路的示意图。如图6所示，在电池化成装置100为电池单元200充电时，附加电源120并未在该充电回路中。
采用本实施例中的实施方式，一方面能够在电池化成装置为电池单元充电时，避免附加电源对该充电过程的影响；另一方面附加电源在电池化成装置为电池单元充电时可以不输出电压，从而降低电池化成装置整体的能耗。
在一些实施例中，可选的，电池化成装置100进一步包含有检测模块150，检测模块150用于与电池单元120以及控制电路130电气连接。
参考图7，图7为本申请一些实施例的电池化成装置的结构示意图。如图7所示，检测模块150分别与电池单元120以及控制电路130电气连接。在电池单元200为电池化成装置100放电时，检测模块150通过与电池单元120的电气连接，可以检测电池单元200的输出电压。并且，控制电路130在电池单元200为电池化成装置100放电，并且检测模块150检测到电池单元的输出电压小于第一电压阈值时，将第一DC-DC转换模块的低压端、电池单元以及附加电源串联。相应地，控制电路130在电池化成装置100为电池单元200充电，或者电池单元200为电池化成装置100放电，但检测模块150检测到电池单元的输出电压大于或等于第一电压阈值时，仅将第一DC-DC转换模块的低压端111与电池单元200串联。
采用本实施例中的实施方式，通过检测模块在电池单元放电时检测该电池单元的输出电压，在电池单元处于放电状态并且电池单元的输出电压小于第一电压阈值时，才启动附加电源，将附加电源串联至由第一DC-DC转换模块的低压端与电池单元组成的放电回路中，进一步降低电池化成装置的整体能耗，降低电池化成装置的化成处理成本。
在一些实施例中，可选的，一个第一DC-DC转换模块、一个附加电源以及一个控制电路构成一组充放电组件，一组充放电组件对应于单个电池单元。电池单元包含一个或多个电池单体。通过一组充放电组件向单个电池单元进行化成处理，能够避免其他电池单元化成过程对本电池单元化成过程的干扰，并有利于提升该电池单元的容量检测的精准度。
在一些实施例中，可选的，一组充放电组件对应单个电池单元，并且控制电路130包括第一控制开关131以及第二控制开关132。
参考图8，图8为本申请一些实施例的电池化成装置的结构示意图。如图8所示，第一DC-DC转换模块110的低压端111的第一子端用于与电池单元200的第一极电气连接，第一控制开关131的第一端用于与第一DC-DC转换模块110的低压端111的第二子端以及附加电源的第二极电气连接，第一控制开关131的第二端用于与电池单元200的第二极以及第二控制开关132的第二端电气连接；第二控制开关132的第一端用于与附加电源120的第一极电气连接。其中，第一极为正极，第二极为负极；或者，第一极为负极，第二极为正极。
在电池单元200为电池化成装置100放电时，第一控制开关131的第一端与第一控制开关131的第二端未联通，第二控制开关132的第一端与第二控制开关132的第二端联通。换言之，在电池单元200为电池化成装置100放电时，第一控制开关131处于断开状态，第二控制开关132处于闭合状态，从而使得电池单元200、第一DC-DC转换模块110的低压端111以及附加电源120串联，并且附加电源120与电池单元200极性相同，附加电源120与电池单元200能够输出极性相同的电压。
进一步可选的，在电池单元200为电池化成装置100放电时，并且电池单元200的 输出电压低于第一电压阈值时，使第一控制开关131处于断开状态，第二控制开关132处于闭合状态。
进一步可选的，在电池化成装置100为电池单元200充电时，或者，在电池单元200为电池化成装置100放电但电池单元200的输出电压大于或等于第一电压阈值时，使第一控制开关131处于闭合状态，第二控制开关132处于断开状态。从而仅将电池单元200与第一DC-DC转换模块110的低压端111串联。
采用本实施例中的实施方式，一组充放电组件对应单个电池单元，并通过第一控制开关以及第二控制开关来控制附加电源在充放电回路的接入，进一步精简电池化成装置的结构，节约化成成本。
在一些实施例中，可选的，一组充放电组件对应单个电池单元，控制电路130包括第一控制开关131以及第二控制开关132。
参考图9，图9为本申请一些实施例的电池化成装置的结构示意图。如图9所示，第一DC-DC转换模块110的低压端111的第一子端用于与电池单元200的第一极电气连接；第一控制开关131的第一端用于与第一DC-DC转换模块110的低压端111的第二子端以及第二控制开关132的第一端电气连接，第一控制开关131的第二端用于与电池单元200的第二极以及附加电源120的第一极电气连接；第二控制开关132的第二端用于与附加电源120的第二极电气连接。其中，第一极为正极，第二极为负极；或者，第一极为负极，第二极为正极。
在电池单元200为电池化成装置100放电时，第一控制开关131的第一端与第一控制开关131的第二端未联通，第二控制开关132的第一端与第二控制开关132的第二端联通。换言之，在电池单元200为电池化成装置100放电时，第一控制开关131处于断开状态，第二控制开关132处于闭合状态，从而使得电池单元200、第一DC-DC转换模块110的低压端111以及附加电源120串联，并且附加电源120与电池单元200极性相同，附加电源120与电池单元200能够输出极性相同的电压。
进一步可选的，在电池单元200为电池化成装置100放电时，并且电池单元200的输出电压低于第一电压阈值时，使第一控制开关131处于断开状态，第二控制开关132处于闭合状态。
进一步可选的，在电池化成装置100为电池单元200充电时，或者，在电池单元200为电池化成装置100放电但电池单元200的输出电压大于或等于第一电压阈值时，使第一控制开关131处于闭合状态，第二控制开关132处于断开状态。从而仅将电池单元200与第一DC-DC转换模块110的低压端111串联。
采用本实施例中的实施方式，一组充放电组件对应单个电池单元，并通过第一控制开关以及第二控制开关来控制附加电源在充放电回路的接入，进一步精简电池化成装置结构，节约化成成本。
在一些实施例中，可选的，一组充放电组件对应单个电池单元，控制电路130包括第三控制开关133。
参考图10，图10为本申请一些实施例的电池化成装置的结构示意图。如图10所示，第一DC-DC转换模块110的低压端111的第一子端用于与电池单元200的第一极电气连接；第三控制开关133的第一端用于与第一DC-DC转换模块110的低压端111的第二子端电气连接，第三控制开关的第二端用于与电池单元200的第二极以及附加电源120的第一极电气连接，第三控制开关133的第三端用于与附加电源的第二极电气连接。其中，第一极为正极，第二极为负极；或者，第一极为负极，第二极为正极。
电池单元200为电池化成装置100放电时，第三控制开关133的第一端与第三控制开关133的第二端未联通，第三控制开关133的第一端与第三控制开关133的第三端联通。
采用本实施例中的实施方式，一组充放电组件对应单个电池单元，并通过一个第三控制开关即可控制附加电源在充放电回路的接入，进一步精简电池化成装置结构，减少电 池化成装置元件的数目，节约化成成本。
在一些实施例中，可选的，一组充放电组件对应多个电池单元，该多个电池单元具体为第一电池单元以及第二电池单元。其中，第一电池单元以及第二电池单元中包含的电池单体的数量，以及电池单体的连接方式可以相同，也可以不同。通过一组充放电组件对多个电池单元进行化成处理，有效提升充放电组件的利用率，降低电池化成装置能耗及成本。
在一些实施例中，可选的，一组充放电组件对应第一电池单元以及第二电池单元。控制电路130包括第一控制开关131以及第二控制开关132。
参考图11，图11为本申请一些实施例的电池化成装置的结构示意图。如图11所示，第一DC-DC转换模块110的低压端111的第一子端用于与第一电池单元210的第一极电气连接，第一DC-DC转换模块110的低压端111的第二子端用于与第二电池单元220的第二极电气连接；第一控制开关131的第一端用于与第一电池单元210的第二极以及附加电源120的第一极电气连接，第一控制开关131的第二端用于与第二电池单元220的第一极以及第二控制开关132的第二端电气连接；第二控制开关132的第一端用于与附加电源的第二极电气连接。
在第一电池单元210和/或第二电池单元220为电池化成装置100放电时，第一控制开关131的第一端与第一控制开关131的第二端未联通，第二控制开关132的第一端与第二控制开关132的第二端联通，从而将第一电池单元210、附加电源120以及第二电池单元220串联，并且，第一电池单元210、附加电源120以及第二电池单元220的极性相同，第一电池单元210、附加电源120以及第二电池单元220输出的电压叠加后输入至第一DC-DC转换模块110的低压端。
进一步可选的，在第一电池单元210和/或第二电池单元220为电池化成装置100放电时，并且第一电池单元210以及第二电池单元220的输出电压的总和低于第一电压阈值时，使第一控制开关131处于断开状态，第二控制开关132处于闭合状态。
进一步可选的，在第一电池单元210和/或第二电池单元220为电池单元200充电时，或者，在第一电池单元210和/或第二电池单元220为电池化成装置100放电但第一电池单元210以及第二电池单元220的输出电压的总和大于或等于第一电压阈值时，使第一控制开关131处于闭合状态，第二控制开关132处于断开状态。从而仅将第一电池单元210、第二电池单元220与第一DC-DC转换模块110的低压端111串联。
采用本实施例中的实施方式，一组充放电组件对应第一电池单元以及第二电池单元，并通过第一控制开关以及第二控制开关来控制附加电源在充放电回路的接入，精简电池化成装置的结构，节约化成成本；并且，第一控制开关以及第二控制开关设置在两个电池单元之间，能够有效减少连接导线长度，节约电池化成装置的成本。
在一些实施例中，可选的，一组充放电组件对应第一电池单元以及第二电池单元。控制电路130包括第一控制开关131以及第二控制开关132。
参考图12，图12为本申请一些实施例的电池化成装置的结构示意图。如图12所示，第一DC-DC转换模块110的低压端111的第一子端用于与第一电池单元210的第一极电气连接，第一DC-DC转换模块110的低压端111的第二子端用于与第二电池单元220的第二极电气连接；第一控制开关131的第一端用于与第一电池单元210的第二极以及第二控制开关132的第一端电气连接，第一控制开关131的第二端用于与附加电源120的第二极以及第二电池单元220的第一极电气连接；第二控制开关132的第二端用于与附加电源的120第一极电气连接；
在第一电池单元210和/或第二电池单元220为电池化成装置100放电时，第一控制开关131的第一端与第一控制开关131的第二端未联通，第二控制开关132的第一端与第二控制开关132的第二端联通。即在第一电池单元210和/或第二电池单元220为电池化成装置100放电时，第一控制开关131断开，第二控制开关132闭合。
进一步可选的，在第一电池单元210和/或第二电池单元220为电池化成装置100放电时，并且第一电池单元210以及第二电池单元220的输出电压的总和低于第一电压阈值时，使第一控制开关131处于断开状态，第二控制开关132处于闭合状态。
进一步可选的，在第一电池单元210和/或第二电池单元220为电池单元200充电时，或者，在第一电池单元210和/或第二电池单元220为电池化成装置100放电但第一电池单元210以及第二电池单元220的输出电压的总和大于或等于第一电压阈值时，使第一控制开关131处于闭合状态，第二控制开关132处于断开状态。从而仅将第一电池单元210、第二电池单元220与第一DC-DC转换模块110的低压端111串联。
采用本实施例中的实施方式，一组充放电组件对应第一电池单元以及第二电池单元，并通过第一控制开关以及第二控制开关来控制附加电源在充放电回路的接入，精简电池化成装置的结构，节约化成成本；并且，第一控制开关以及第二控制开关设置在两个电池单元之间，能够有效减少连接导线长度，节约电池化成装置的成本。
在一些实施例中，可选的，一组充放电组件对应第一电池单元以及第二电池单元。控制电路130包括第三控制开关133。
参考图13，图13为本申请一些实施例的电池化成装置的结构示意图。如图13所示，第一DC-DC转换模块110的低压端111的第一子端用于与第一电池单元210的第一极电气连接，第一DC-DC转换模块110的低压端111的第二子端用于与第二电池单元220的第二极电气连接；第三控制开关133的第一端用于与第一电池单元210的第二极电气连接，第三控制开关133的第二端用于与附加电源120的第一极电气连接，第三控制开关133的第三端用于与第二电池单元220的第一极电气连接。
在第一电池单元210和/或第二电池单元220为电池化成装置100放电时，第三控制开关133的第一端与第三控制开关的第二端联通，以将第一电池单元210、附加电源120以及第二电池单元220串联，并且，第一电池单元210、附加电源120以及第二电池单元220输出的电压极性一致，第一电池单元210、附加电源120以及第二电池单元220输出的电压叠加后输入至第一DC-DC转换模块110的低压端111。
进一步可选的，在第一电池单元210和/或第二电池单元220为电池化成装置100放电时，并且第一电池单元210以及第二电池单元220的输出电压的总和低于第一电压阈值时，第三控制开关133的第一端与第三控制开关的第二端联通。
进一步可选的，在第一电池单元210和/或第二电池单元220为电池单元200充电时，或者，在第一电池单元210和/或第二电池单元220为电池化成装置100放电但第一电池单元210以及第二电池单元220的输出电压的总和大于或等于第一电压阈值时，使第三控制开关133的第一端与第三控制开关的第三端联通，从而仅将第一电池单元210、第二电池单元220与第一DC-DC转换模块110的低压端111串联。
采用本实施例中的实施方式，一组充放电组件对应第一电池单元以及第二电池单元，并通过一个控制开关来控制附加电源在充放电回路的接入，进一步减少电池化成装置包含的元件数量，节约化成成本；并且，第三控制开关设置在两个电池单元之间，能够有效减少连接导线长度，节约电池化成装置的成本。
在一些实施例中，可选的，附加电源具体为第二DC-DC转换模块。
参考图14，图14为本申请一些实施例的电池化成装置的结构示意图。如图14所示，第二DC-DC转换模块120的高压端122用于与直流母线140电气连接，第二DC-DC转换模块120的低压端121用于与控制电路130电气连接。
在电池单元200为电池化成装置100放电时，控制电路130用于将第二DC-DC转换模块120的低压端121、第一DC-DC转换模块的低压端111以及电池单元200串联。并且，在电池单元200为电池化成装置100放电时，第二DC-DC转换模块120的低压端121输出的电压极性与电池单元输出的电压极性一致，从而第二DC-DC转换模块120的低压端121输出的电压与电池单元输出的电压叠加后输入至第一DC-DC转换模块的低压端111， 提高第一DC-DC转换模块的输入电压，避免出现第一DC-DC转换模块的输入电压小于第一DC-DC转换模块的最低输入电压阈值的弊端。
采用本实施例中的实施方式，将第二DC-DC转换模块作为附加电源，一方面能够在电池单元为电池化成装置放电时，第二DC-DC转换模块的低压端输出的电压与电池单元输出的电压叠加后输入至第一DC-DC转换模块的低压端，提高第一DC-DC转换模块的输入电压，避免出现第一DC-DC转换模块的输入电压小于第一DC-DC转换模块的最低输入电压阈值的弊端；另一方面，第二DC-DC转换模块具有功耗低，体积小的特点，从而有利于降低电池化成装置的能耗，并减小电池化成装置的体积。
在一些实施例中，可选的，电池化成装置100还包括：AC-DC转换模块160。
参考图15，图15为本申请一些实施例的电池化成装置的结构示意图。如图15所示，AC-DC转换模块160的交流端161用于与电网电气连接，AC-DC转换模块160的直流端162用于与直流母线140电气连接。
AC-DC转换模块160用于，在电池单元200为电池化成装置100放电时，将AC-DC转换模块160的直流端162输入的直流电压转换为交流电压，并通过AC-DC转换模块160的交流端161输出交流电压至电网；以及，AC-DC转换模块160用于在电池单元200为电池化成装置100放电时，将AC-DC转换模块160的交流端161输入的交流电压转换为直流电压，并通过AC-DC转换模块的直流端162输出直流电压至直流母线。
采用本实施例中的实施方式，通过在电池化成装置中设置AC-DC转换模块，可以将电网的交流电转换为直流电，并用于对电池单元的充电；还可以将电池单元输出的直流电转换为交流电输出至电网，从而可以使本电池化成装置适用于交流电的场景中，扩大电池化成装置的使用范围。
在一些实施例中，可选的，电池化成装置100包括：第一DC-DC转换模块110、第二DC-DC转换模块120、第一控制开关131、第二控制开关132直流母线140、以及AC-DC转换模块160。
参考图16，图16为本申请一些实施例的电池化成装置的结构示意图。如图16所示，第一DC-DC转换模块110低压端的第一子端与电池单元的第一极电气连接；第一DC-DC转换模块110低压端的第二子端与第一控制开关的第一端、第二DC-DC转换模块120的低压端的第一子端电气连接；第二DC-DC转换模块120的低压端的第二子端与第二控制开关132的第一端电气连接；第二控制开关132的第二端与电池单元200的第二极电气连接，第一控制开关131的第二端与电池单元200的第二极电气连接。其中，第二DC-DC转换模块120的低压端的极性与电池单元极性一致；第一DC-DC转换模块110的高压端112，第二DC-DC转换模块120的高压端122，以及AC-DC转换模块160的直流端162与直流母线电气连接；AC-DC转换模块160的交流端161与电网电气连接。
在电池单元200向电池化成装置100放电时，若电池单元100输出的电压小于第一电压阈值，则第一控制开关131断开，第二控制开关132闭合，从而将电池单元200、第一DC-DC转换模块110低压端、第二DC-DC转换模块120低压端串联，其中，第一DC-DC转换模块110低压端为用电装置，第一DC-DC转换模块110低压端为输入端；第二DC-DC转换模块110低压端为供电装置，第二DC-DC转换模块120低压端为输出端，并且第二DC-DC转换模块120低压端122的极性与电池单元200的极性一致，由此电池单元200输出的电压与第二DC-DC转换模块120低压端122输出的电压叠加后输入至第一DC-DC转换模块110低压端111，提高第一DC-DC转换模块110输入端的电压，避免出现第一DC-DC转换模块110输入端的电压低于第一DC-DC转换模块110的输入电压限制的弊端。而且，第一DC-DC转换模块将低压端输入的电压进行升压之后通过高压端112输出至直流母线。直流母线接入将电压输入至AC-DC转换模块160的直流端162，AC-DC转换模块160将直流电转换为交流电后经由交流端161传输至电网。与电网连接的容量检测设备可以获得电池单元的容量信息。
在电池化成装置100向电池单元200充电时，或者，在电池单元200向电池化成装置100放电并且电池单元100输出的电压大于或等于第一电压阈值时，第一控制开关131闭合以及第二控制开关132断开，则电池单元200与第一DC-DC转换模块110串联。AC-DC转换模块160将电网的交流电压转换为直流电压之后输出至直流母线；直流母线继而将电压传输至第一DC-DC转换模块110的高压端112，经降压处理后经由低压端111输出电压，该输出电压用于对电池单元的充电。
根据本申请的一些实施例，参照图17。图17是本申请一些实施例的电池化成装置的控制方法的流程示意图。
如图17所示，该控制方法包括如下步骤：
步骤S1710，接收电池单元放电控制指令。
电池化成装置可以接收来自中位机的控制指令，该控制指令具体可以为放电控制指令以及充电控制指令。其中，放电控制指令用于使电池单元向电池化成装置放电，充电控制指令用于使电池化成装置向电池单元充电。
可选的，还可以接收中位机发送的充电模式信息，该充电模式信息具体指明了电池单元的充电模式，该充电模式可以为恒流模式或恒压模式。
可选的，还可以接收中位机发送的充电或放电的时间限制参数。该时间限制参数指明了电池单元充电或放电的时间范围。
可选的，还可以接收中位机发送的电流精度参数，该电流精度参数指明了充电或放电过程中电流的精度范围。
步骤S1720，控制电池化成装置中的第一DC-DC转换模块的低压端、电池单元以及附加电源串联；以及控制电池单元为电池化成装置放电。
电池化成装置在接收到放电控制指令后，控制电池化成装置中的第一DC-DC转换模块的低压端、电池单元以及附加电源串联，并且控制电池单元为电池化成装置放电。
采用本实施例中的实施方式，能够及时响应中位机下发的放电控制指令，将附加电源串联至第一DC-DC转换模块的低压端以及电池单元构成的放电回路中，从而提升输入至第一DC-DC转换模块的低压端的电压，避免出现输入至第一DC-DC转换模块的低压端的电压小于第一DC-DC转换模块的输入电压的最低阈值，从而能够使电池单元中的各个电池单体充分放电，避免因电池单元中的各个电池单体无法充分放电而引起的电池单元池化效果差以及检测的电池容量精度差的技术弊端。
在一些实施例中，可选的，该方法还包括：检测电池单元的输出电压，若检测到电池单元的输出电压小于第一电压阈值，则控制电池化成装置中的第一DC-DC转换模块的低压端、电池单元以及附加电源串联。
采用本实施例中的实施方式，在电池单元处于放电状态并且电池单元的输出电压小于第一电压阈值时，才启动附加电源，将附加电源串联至由第一DC-DC转换模块的低压端与电池单元组成的放电回路中，进一步节约了电池化成装置的整体能耗，降低电池化成装置的化成处理成本。
在一些实施例中，可选的，该方法还包括：若检测到电池单元的输出电压小于第一电压阈值，在暂停电池化成装置中的AC-DC转换模块后，控制电池化成装置中的第一DC-DC转换模块的低压端、电池单元以及附加电源串联；并在控制电池化成装置中的第一DC-DC转换模块的低压端、电池单元以及附加电源串联后，重新启动AC-DC转换模块。
采用本实施例中的实施方式，在确定出需要接入附加电源时，若直接将附加电源串联至第一DC-DC转换模块的低压端以及电池单元构成的放电回路中，会使得第一DC-DC转换模块出现短暂的峰值电压，从而影响第一DC-DC转换模块的使用寿命。本实施例先暂停AC-DC转换模块，避免AC-DC转换模块经由直流母线持续向第一DC-DC转换模块输出高电压，此后再将附加电源串联至第一DC-DC转换模块的低压端以及电池单元构成的放电回路中，从而避免第一DC-DC转换模块出现短暂的峰值电压，延长第一DC-DC转换 模块的使用寿命。
在一些实施例中，可选的，该方法还包括：采集电池单元的电池状态信息，并向中位机反馈电池状态信息。
该电池状体信息具体可以包括以下信息中的至少一种：板温、当前执行的控制指令、充放电模式、实际的电流值。
采用本实施例中的实施方式，实时采集并反馈电池单元的电池状态信息，便于及时发现电池单元在池化过程中的状态，便于及时发现异常状态及对异常状态进行及时响应。
在一些实施例中，可选的，该方法还包括：判断电池化成装置为电池单元充电的充电时长是否超出预设时长；若是，则向中位机发送报警信息；并接收中位机基于所述报警信息发送的中止指令，暂停电池化成装置中的AC-DC转换模块。
在电池化成装置为电池单元充电的充电时长超出预设时长后，表明电池单元的充电时间已经超过了化成流程限定时间，但电池单元的电量尚未满足需求，则表明当前属于故障模式，则及时向中位机发送报警信息；中位机根据该报警信息下发针对AC-DC转换模块停止输出的指令，以暂停AC-DC转换模块的输出。
采用本实施例中的实施方式，通过根据电池单元的充电时长确定电池单元是否存在异常，在确定出电池单元存在异常的情况下及时向中位机发送报警信息，以便于对电池单元的异常进行处理；并且在处理过程中，中止AC-DC转换模块的输出，一方面保护电池单元及电池化成装置的安全，另一方面减少电池化成装置的能耗，节约化成成本。
在一些实施例中，可选的，该方法还包括：判断电池单元的输出电压是否超出第二电压阈值；若是，则向中位机发送报警信息；接收中位机基于报警信息发送的中止指令，根据中止指令暂停电池单元的输出。
在电池单元向电池化成装置充电过程中，若检测到电池单元的输出电压超出了第二电压阈值，表明当前处于异常状态，则及时向中位机反馈报警信息；并根据中位机发送的中止指令来及时中止电池单元的输出。
采用本实施例中的实施方式，通过根据电池单元的放电电压确定是否存在异常，在确定存在异常的情况下及时向中位机发送报警信息，以便于对异常状态进行处理；并且在处理过程中，中止电池单元的输出，一方面保护电池单元及电池化成装置的安全，另一方面减少电池单元的能耗，节约化成成本。
根据本申请的一些实施例，参照图18。图18是本申请一些实施例的电池化成控制系统的结构示意图。
如图18所示，电池化成控制系统400包括电池化成装置100以及中位机300。中位机300与电池化成装置100建立有通信连接。
其中，中位机300用于向电池化成装置100发送充电控制指令或者放电控制指令。
电池化成装置100用于根据放电控制指令，控制电池单元200为电池化成装置100放电；或者，电池化成装置100用于根据充电控制指令，控制电池化成装置100为电池单元200充电。
其中，电池化成装置100的具体结构及实施过程可参照其他实施例中相应部分的描述，在此不作赘述。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (20)

  1. 一种电池化成装置，其特征在于，包括：第一DC-DC转换模块、附加电源以及控制电路；
    所述第一DC-DC转换模块的低压端用于与所述控制电路电气连接，所述第一DC-DC转换模块的高压端用于与直流母线电气连接；所述第一DC-DC转换模块用于在电池单元为所述电池化成装置放电时，将所述低压端输入的第一电压转换为第二电压，并通过所述高压端输出所述第二电压；其中，所述第二电压高于所述第一电压；
    所述附加电源用于与所述控制电路电气连接，所述附加电源用于输出附加电压；其中，所述附加电源的极性与所述电池单元的极性一致；
    所述控制电路用于与所述电池单元、所述第一DC-DC转换模块的低压端、以及所述附加电源电气连接；所述控制电路用于在所述电池单元为所述电池化成装置放电时，将所述第一DC-DC转换模块的低压端、所述电池单元以及所述附加电源串联。
  2. 根据权利要求1所述的装置，其特征在于，所述控制电路还用于在所述电池化成装置为所述电池单元充电时，将所述第一DC-DC转换模块的低压端以及所述电池单元串联。
  3. 根据权利要求1所述的装置，其特征在于，所述装置还包括：
    检测模块，所述检测模块用于与所述电池单元以及所述控制电路电气连接，检测模块用于检测所述电池单元的输出电压；
    则所述控制电路进一步用于，在所述电池单元为所述电池化成装置放电，并且所述检测模块检测到所述电池单元的输出电压小于第一电压阈值时，将所述第一DC-DC转换模块的低压端、所述电池单元以及所述附加电源串联。
  4. 根据权利要求1-3中任一项所述的装置，其特征在于，所述电池单元为单个。
  5. 根据权利要求4所述的装置，其特征在于，所述控制电路包括第一控制开关以及第二控制开关；
    所述第一DC-DC转换模块的低压端的第一子端用于与所述电池单元的第一极电气连接；
    所述第一控制开关的第一端用于与所述第一DC-DC转换模块的低压端的第二子端以及所述附加电源的第二极电气连接，所述第一控制开关的第二端用于与所述电池单元的第二极以及所述第二控制开关的第二端电气连接；
    所述第二控制开关的第一端用于与所述附加电源的第一极电气连接；
    其中，所述电池单元为所述电池化成装置放电时，所述第一控制开关的第一端与所述第一控制开关的第二端未联通，所述第二控制开关的第一端与所述第二控制开关的第二端联通。
  6. 根据权利要求4所述的装置，其特征在于，所述控制电路包括第一控制开关以及第二控制开关；
    所述第一DC-DC转换模块的低压端的第一子端用于与所述电池单元的第一极电气连接；
    所述第一控制开关的第一端用于与所述第一DC-DC转换模块的低压端的第二子端以及所述第二控制开关的第一端电气连接，所述第一控制开关的第二端用于与所述电池单元的第二极以及所述附加电源的第一极电气连接；
    所述第二控制开关的第二端用于与所述附加电源的第二极电气连接；
    其中，所述电池单元为所述电池化成装置放电时，所述第一控制开关的第一端与所述第一控制开关的第二端未联通，所述第二控制开关的第一端与所述第二控制开关的第二端联通。
  7. 根据权利要求4所述的装置，其特征在于，所述控制电路包括第三控制开关；
    所述第一DC-DC转换模块的低压端的第一子端用于与所述电池单元的第一极电气连接；
    所述第三控制开关的第一端用于与所述第一DC-DC转换模块的低压端的第二子端电气连接，所述第三控制开关的第二端用于与所述电池单元的第二极以及所述附加电源的第一极电气连接，所述第三控制开关的第三端用于与所述附加电源的第二极电气连接；
    其中，所述电池单元为所述电池化成装置放电时，所述第三控制开关的第一端与所述第三控制开关的第二端未联通，所述第三控制开关的第一端与所述第三控制开关的第三端联通。
  8. 根据权利要求1-3中任一项所述的装置，其特征在于，所述电池单元包括第一电池单元以及第二电池单元。
  9. 根据权利要求8所述的装置，其特征在于，所述控制电路包括第一控制开关以及第二控制开关；
    所述第一DC-DC转换模块的低压端的第一子端用于与所述第一电池单元的第一极电气连接，所述第一DC-DC转换模块的低压端的第二子端用于与所述第二电池单元的第二极电气连接；
    所述第一控制开关的第一端用于与所述第一电池单元的第二极以及所述附加电源的第一极电气连接，所述第一控制开关的第二端用于与所述第二电池单元的第一极以及所述第二控制开关的第二端电气连接；
    所述第二控制开关的第一端用于与所述附加电源的第二极电气连接；
    其中，所述电池单元为所述电池化成装置放电时，所述第一控制开关的第一端与所述第一控制开关的第二端未联通，所述第二控制开关的第一端与所述第二控制开关的第二端联通。
  10. 根据权利要求8所述的装置，其特征在于，所述控制电路包括第一控制开关以及第二控制开关；
    所述第一DC-DC转换模块的低压端的第一子端用于与所述第一电池单元的第一极电气连接，所述第一DC-DC转换模块的低压端的第二子端用于与所述第二电池单元的第二极电气连接；
    所述第一控制开关的第一端用于与所述第一电池单元的第二极以及所述第二控制开关的第一端电气连接，所述第一控制开关的第二端用于与所述附加电源的第二极以及所述第二电池单元的第一极电气连接；
    所述第二控制开关的第二端用于与所述附加电源的第一极电气连接；
    其中，所述电池单元为所述电池化成装置放电时，所述第一控制开关的第一端与所述第一控制开关的第二端未联通，所述第二控制开关的第一端与所述第二控制开关的第二端联通。
  11. 根据权利要求8所述的装置，其特征在于，所述控制电路包括第三控制开关；
    所述第一DC-DC转换模块的低压端的第一子端用于与所述第一电池单元的第一极电气连接，所述第一DC-DC转换模块的低压端的第二子端用于与所述第二电池单元的第二极电气连接；
    所述第三控制开关的第一端用于与所述第一电池单元的第二极电气连接，所述第三控制开关的第二端用于与所述附加电源的第一极电气连接，所述第三控制开关的第三端用于与所述第二电池单元的第一极电气连接；
    其中，所述电池单元为所述电池化成装置放电时，所述第三控制开关的第一端与所述第三控制开关的第二端联通。
  12. 根据权利要求1所述的装置，其特征在于，所述附加电源为第二DC-DC转换模块；
    所述第二DC-DC转换模块的高压端用于与所述直流母线电气连接，所述第二DC-DC转换模块的低压端用于在所述电池单元为所述电池化成装置放电时，与所述第一DC-DC转换模块的低压端以及所述电池单元串联。
  13. 根据权利要求1所述的装置，其特征在于，所述装置还包括：AC-DC转换模块；
    所述AC-DC转换模块的交流端用于与电网电气连接，所述AC-DC转换模块的直流端用于与直流母线电气连接；
    所述AC-DC转换模块用于，在所述电池单元为所述电池化成装置放电时，将所述AC-DC转换模块的直流端输入的直流电压转换为交流电压，并通过所述AC-DC转换模块的交流端输出所述交流电压；
    以及，所述AC-DC转换模块用于，在所述电池化成装置为所述电池单元充电时，将所述AC-DC转换模块的交流端输入的交流电压转换为直流电压，并通过所述AC-DC转换模块的直流端输出所述直流电压。
  14. 一种用于权利要求1-13任一项所述的电池化成装置的控制方法，其特征在于，包括：
    接收电池单元放电控制指令；
    控制电池化成装置中的第一DC-DC转换模块的低压端、所述电池单元以及附加电源串联；以及
    控制所述电池单元为所述电池化成装置放电。
  15. 根据权利要求14所述的方法，其特征在于，所述控制电池化成装置中的第一DC-DC转换模块的低压端、所述电池单元以及附加电源串联进一步包括：
    检测所述电池单元的输出电压；
    若检测到所述电池单元的输出电压小于第一电压阈值，则控制电池化成装置中的第一DC-DC转换模块的低压端、所述电池单元以及附加电源串联。
  16. 根据权利要求15所述的方法，其特征在于，所述若检测到所述电池单元的输出电压小于第一电压阈值，则控制电池化成装置中的第一DC-DC转换模块的低压端、所述电池单元以及附加电源串联进一步包括：
    若检测到所述电池单元的输出电压小于第一电压阈值，在暂停所述电池化成装置AC-DC转换模块后，控制电池化成装置中的第一DC-DC转换模块的低压端、所述电池单元以及附加电源串联；
    并在控制电池化成装置中的第一DC-DC转换模块的低压端、所述电池单元以及附加电源串联后，重新启动所述AC-DC转换模块。
  17. 根据权利要求14所述的方法，其特征在于，所述方法还包括：
    采集所述电池单元的电池状态信息，并向中位机反馈所述电池状态信息。
  18. 根据权利要求14所述的方法，其特征在于，所述方法还包括：
    判断所述电池化成装置为所述电池单元充电的充电时长是否超出预设时长；若是，则向中位机发送报警信息；并接收中位机基于所述报警信息发送的中止指令，暂停所述电池化成装置中的AC-DC转换模块。
  19. 根据权利要求14所述的方法，其特征在于，所述方法还包括：
    判断所述电池单元的输出电压是否超出第二电压阈值；若是，则向中位机发送报警信息；接收中位机基于所述报警信息发送的中止指令，根据所述中止指令暂停所述电池单元的输出。
  20. 一种电池化成控制系统，其特征在于，包括：
    如权利要求1-13任一项所述的电池化成装置，以及中位机；所述中位机与所述电池化成装置建立有通信连接；
    所述中位机用于向所述电池化成装置发送充电控制指令或者放电控制指令；
    所述电池化成装置用于根据所述放电控制指令，控制所述电池单元为所述电池化成装置放电；
    或者，所述电池化成装置用于根据所述充电控制指令，控制所述电池化成装置为所述电池单元充电。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116360377A (zh) * 2023-06-01 2023-06-30 深圳和润达科技有限公司 电芯化成分容的数据处理方法及分布式控制系统
CN116387652A (zh) * 2023-06-05 2023-07-04 深圳和润达科技有限公司 化成/分容电源设备的在线维护系统及方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7431866B2 (ja) * 2021-07-29 2024-02-15 寧徳時代新能源科技股▲分▼有限公司 充放電装置、電池充電方法及び充放電システム
CN117394490A (zh) * 2023-10-19 2024-01-12 深圳市傲柏科技有限公司 充放电均衡电路和led驱动系统
IT202300026088A1 (it) * 2023-12-06 2025-06-06 System Ceramics S P A Dispositivo di formazione di una pluralità di batterie e relativo metodo di controllo di un processo di formazione
KR102854261B1 (ko) * 2024-04-02 2025-09-03 광저우 킨테 인더스트리얼 컴퍼니 리미티드 Dc 버스 기반 직렬 포메이션 및 용량 그레이딩을 위한 생산 및 검사 시스템
CN118399365B (zh) * 2024-06-28 2024-09-17 合肥召洋电子科技有限公司 用于电池检测的能量回馈式直流微网储能系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110187309A1 (en) * 2010-02-01 2011-08-04 Acoustic Arc International Ltd. Apparatus for automatically switching and charging multiple batteries
CN105680534A (zh) * 2016-04-21 2016-06-15 江苏工程职业技术学院 一种蓄电池均衡充电装置及充电控制方法
CN206789649U (zh) * 2017-05-18 2017-12-22 天津市三源电力设备制造有限公司 一种锂电池化成系统
CN110015158A (zh) * 2017-12-15 2019-07-16 蔚来汽车有限公司 车辆低压电池管理系统以及车辆低压电池管理方法
CN111769336A (zh) * 2019-04-01 2020-10-13 深圳市瑞能实业股份有限公司 一种用于电池组短板效应的规避系统及方法
CN111799497A (zh) * 2020-06-30 2020-10-20 欣旺达电子股份有限公司 电池化成系统及电池化成方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11289676A (ja) * 1998-04-01 1999-10-19 Toyo System Kk 二次電池充放電装置用の電源装置
JP2002078229A (ja) * 2000-08-22 2002-03-15 Sony Corp 二次電池充放電装置
EP2485349A4 (en) * 2009-10-02 2017-08-02 Panasonic Corporation Power distribution device and power distribution system using same
AT11605U3 (de) * 2010-08-26 2011-09-15 Avl List Gmbh Anlage zur formierung von lithium-ionen-zellen
KR20130024807A (ko) * 2011-08-29 2013-03-08 정윤이 셀포메이션 모듈, 그리고 이를 포함하는 셀포메이션 장치 및 방법
DE102012204965A1 (de) * 2012-03-28 2013-10-02 Robert Bosch Gmbh Batteriesystem, Kraftfahrzeug mit Batteriesystem und Verfahren zur Inbetriebnahme eines Batteriesystems
KR20140094857A (ko) * 2013-01-23 2014-07-31 명지대학교 산학협력단 충전기 및 이의 구동 방법
KR102234290B1 (ko) * 2014-04-04 2021-03-31 삼성에스디아이 주식회사 에너지 저장 시스템 및 그의 구동방법
CN104158273A (zh) * 2014-08-07 2014-11-19 东莞市冠佳电子设备有限公司 电池化成分容系统
EP3706205B1 (en) * 2014-10-13 2024-01-03 24M Technologies, Inc. Systems and methods for series battery charging and forming
KR101906886B1 (ko) * 2016-05-11 2018-10-11 엘에스산전 주식회사 에너지 저장 장치
CN207426791U (zh) * 2017-09-20 2018-05-29 深圳市泰昂能源科技股份有限公司 直流电源装置及电源系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110187309A1 (en) * 2010-02-01 2011-08-04 Acoustic Arc International Ltd. Apparatus for automatically switching and charging multiple batteries
CN105680534A (zh) * 2016-04-21 2016-06-15 江苏工程职业技术学院 一种蓄电池均衡充电装置及充电控制方法
CN206789649U (zh) * 2017-05-18 2017-12-22 天津市三源电力设备制造有限公司 一种锂电池化成系统
CN110015158A (zh) * 2017-12-15 2019-07-16 蔚来汽车有限公司 车辆低压电池管理系统以及车辆低压电池管理方法
CN111769336A (zh) * 2019-04-01 2020-10-13 深圳市瑞能实业股份有限公司 一种用于电池组短板效应的规避系统及方法
CN111799497A (zh) * 2020-06-30 2020-10-20 欣旺达电子股份有限公司 电池化成系统及电池化成方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4220818A4 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116360377A (zh) * 2023-06-01 2023-06-30 深圳和润达科技有限公司 电芯化成分容的数据处理方法及分布式控制系统
CN116360377B (zh) * 2023-06-01 2023-08-29 深圳和润达科技有限公司 电芯化成分容的数据处理方法及分布式控制系统
CN116387652A (zh) * 2023-06-05 2023-07-04 深圳和润达科技有限公司 化成/分容电源设备的在线维护系统及方法
CN116387652B (zh) * 2023-06-05 2023-08-25 深圳和润达科技有限公司 化成/分容电源设备的在线维护系统及方法

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