WO2020259699A1 - Dispositif de traitement de sécurité pour bloc-batterie, dispositif de stockage d'énergie électrique et procédé de commande associé - Google Patents

Dispositif de traitement de sécurité pour bloc-batterie, dispositif de stockage d'énergie électrique et procédé de commande associé Download PDF

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Publication number
WO2020259699A1
WO2020259699A1 PCT/CN2020/098607 CN2020098607W WO2020259699A1 WO 2020259699 A1 WO2020259699 A1 WO 2020259699A1 CN 2020098607 W CN2020098607 W CN 2020098607W WO 2020259699 A1 WO2020259699 A1 WO 2020259699A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
temperature change
battery
temperature
energy storage
Prior art date
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Ceased
Application number
PCT/CN2020/098607
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English (en)
Chinese (zh)
Inventor
李攀
兰志波
张建平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aulton New Energy Automotive Technology Co Ltd
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Aulton New Energy Automotive Technology Co Ltd
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Filing date
Publication date
Application filed by Aulton New Energy Automotive Technology Co Ltd filed Critical Aulton New Energy Automotive Technology Co Ltd
Priority to JP2021576661A priority Critical patent/JP7706381B6/ja
Publication of WO2020259699A1 publication Critical patent/WO2020259699A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or 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
    • H01M10/42—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
    • 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
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/635—Control systems based on ambient temperature
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • 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 invention relates to the field of electric energy storage, in particular to a safety processing device of a battery pack, an electric energy storage device and a control method thereof.
  • the electric energy storage device is a system that can complete the storage and supply of electric energy, and has the functions of smooth transition, peak shaving and valley filling, frequency and voltage regulation.
  • the technical problem to be solved by the present invention is to overcome the shortcomings of passive safety measures adopted by electric energy storage devices in the prior art, and to provide a safety processing device for battery packs, electric energy storage devices and control methods thereof.
  • a safety processing device for battery packs characterized in that the safety processing device includes:
  • Temperature monitoring module used to collect the cell temperature change of each cell in the battery pack
  • the temperature control module is used to determine whether the maximum cell temperature change in the battery pack falls within one of the multiple temperature change ranges, and if so, generate temperature control according to the temperature change range within which the maximum cell temperature change falls Instructions, wherein different temperature change ranges correspond to different battery pack processing methods, and the temperature control instruction includes processing the battery packs according to the processing methods corresponding to the temperature change ranges falling into;
  • the security module is used to execute the temperature control instruction.
  • the processing method includes isolation
  • the security module includes an isolation unit
  • the isolation unit is used to push the battery pack out of a preset distance.
  • the isolation unit includes any one of an elastic component, a push rod component, and an airbag component.
  • the processing method includes power off, and the security module includes a switch unit for cutting off the electrical connection of the battery pack.
  • the processing method includes cooling
  • the security module includes a cooling unit
  • the cooling unit is used to cool the battery pack.
  • An electric energy storage device characterized in that the electric energy storage device includes a temperature control module, a security module, and several battery boxes, and the battery box is provided with a battery pack and a temperature monitoring module;
  • the battery pack includes several battery cells
  • the temperature monitoring module is used to collect the cell temperature change of each cell in the battery pack
  • the temperature control module is used to determine whether the maximum cell temperature change in the battery pack falls within one of a plurality of temperature change ranges, and if so, generates a temperature based on the temperature change range within which the maximum cell temperature change falls.
  • a control instruction wherein different temperature change ranges correspond to different battery pack processing methods, and the temperature control instruction includes processing the battery pack according to a processing method corresponding to the temperature change range that falls;
  • the security module is used to execute the temperature control instruction.
  • the temperature monitoring module is specifically configured to collect local cell temperature changes at multiple local positions of each cell in the battery pack;
  • the temperature control module is specifically configured to determine whether the maximum local cell temperature change in the battery pack falls within one of a plurality of temperature change ranges;
  • the processing method includes isolation, the battery box includes a box door, and the security module includes a trigger mechanism provided in the battery box, and the trigger mechanism is arranged opposite to the box door, and the battery Packaged between the box door and the trigger mechanism;
  • the temperature control module is specifically configured to determine whether the maximum cell temperature change in the battery pack falls within a first temperature change range, and if so, generate a first temperature control instruction;
  • the door of the first battery box provided with the first battery pack including the battery cells whose maximum battery cell temperature change falls within the first temperature change range is opened according to the first temperature control instruction;
  • the trigger mechanism in the first battery box pushes the first battery pack away from the first battery box according to the first temperature control instruction.
  • the trigger mechanism includes any one of an elastic component, a push rod component, and an airbag component;
  • the elastic component in the first battery box is used to eject and push the first battery pack away from the first battery box according to the first temperature control instruction;
  • the push rod assembly in the first battery box is used to push out and push the first battery pack away from the first battery box according to the first temperature control instruction;
  • the airbag assembly in the first battery box is used to inflate and push the first battery pack away from the first battery box according to the first temperature control instruction.
  • a plurality of rollers are provided at the bottom of the battery box, and the battery is packaged on the plurality of rollers.
  • the minimum value of the first temperature change range is a first threshold, and the value range of the first threshold is 20-22°C.
  • the security module includes several energy storage converters; among them:
  • Each battery pack is electrically connected to an energy storage converter
  • Each energy storage converter is electrically connected to at least one battery pack.
  • the processing method includes power off, and the temperature control module is specifically configured to determine whether the maximum cell temperature change in the battery pack falls within the second temperature change range;
  • the second temperature control instruction including cutting off the electrical connection of the second battery pack including the cells whose maximum cell temperature change falls within the second temperature change range;
  • the energy storage converter electrically connected to the second battery pack is used to execute the second temperature control command.
  • the minimum value of the second temperature change range is a second threshold, and the value range of the second threshold is 10-12°C.
  • the battery box is arranged on the upper part of the energy storage converter, and a heat insulation layer is provided between the battery box and the energy storage converter.
  • the security module includes several air exchange devices for realizing heat exchange between the electric energy storage device and the outside air.
  • the processing method includes cooling, and the temperature control module is specifically configured to determine whether the maximum cell temperature change in the battery pack falls within the third temperature change range;
  • the air exchange device is activated according to the third temperature control instruction.
  • the minimum value of the third temperature change range is a third threshold, and the value range of the third threshold is 5-7°C.
  • the electric energy storage device further includes a temperature field monitoring module for monitoring the temperature field in the electric energy storage device;
  • the temperature control module is also used to determine whether the maximum temperature difference in the temperature field is greater than a fourth threshold
  • the air exchange device is activated according to the fourth temperature control instruction.
  • the value range of the fourth threshold is 5-7°C.
  • the plurality of air exchange devices are respectively arranged on the top of the electric energy storage device and at a position adjacent to the energy storage converter.
  • a control method of an electric energy storage device characterized in that the electric energy storage device includes a number of battery boxes, the battery box is provided with a battery pack, the battery pack includes a number of battery cells, and the control method includes:
  • the battery pack is processed according to a processing method corresponding to the temperature change range in which the maximum cell temperature change falls.
  • the step of collecting the cell temperature change of each cell in the battery pack includes:
  • the step of determining whether the maximum cell temperature change in the battery pack falls within one of a plurality of temperature change ranges includes:
  • the processing method includes isolation, the battery box includes a box door, the battery box further includes a trigger mechanism, the trigger mechanism is arranged opposite to the box door, and the battery pack is arranged in the box.
  • the step of judging whether the maximum cell temperature change in the battery pack falls within one of a plurality of temperature change ranges includes:
  • the trigger mechanism removes the first battery pack from Push away from the first battery box.
  • the minimum value of the first temperature change range is a first threshold, and the value range of the first threshold is 20-22°C.
  • the processing method includes power off, the power storage device further includes a plurality of energy storage converters, each battery pack is electrically connected to an energy storage converter, and each energy storage converter is at least connected to A battery pack is electrically connected, and the step of judging whether the maximum cell temperature change in the battery pack falls within one of a plurality of temperature change ranges includes:
  • the energy storage converter electrically connected to the second battery pack including the cells whose maximum cell temperature change falls within the second temperature change range cuts off the electrical connection with the second battery pack.
  • the minimum value of the second temperature change range is a second threshold, and the value range of the second threshold is 10-12°C.
  • the processing method includes cooling, the electric energy storage device further includes a number of air exchange devices for realizing heat exchange between the electric energy storage device and the outside air, and the determination of the maximum power in the battery pack
  • the steps of whether the core temperature change falls within one of the multiple temperature change ranges include:
  • the minimum value of the third temperature change range is a third threshold, and the value range of the third threshold is 5-7°C.
  • the electrical energy storage device further includes several air exchange devices for realizing heat exchange between the electrical energy storage device and the outside air
  • the control method further includes:
  • the value range of the fourth threshold is 5-7°C.
  • the positive progress effect of the present invention is that the present invention monitors the maximum cell temperature change in the battery pack, and processes the battery pack according to the processing method corresponding to the temperature change range within the maximum cell temperature change in the battery pack, thereby enabling Actively and effectively prevent thermal runaway of battery packs and avoid irreparable losses.
  • FIG. 1 is a schematic diagram of modules of a safety processing device for a battery pack according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram of the relationship between the battery pack processing method and the temperature change range in the battery pack safety processing device according to Embodiment 1 of the present invention.
  • Fig. 3 is a schematic diagram of modules of a power storage device according to Embodiment 2 of the present invention.
  • FIG. 4 is a circuit connection diagram of the energy storage converter and the battery pack in the power energy storage device according to the second embodiment of the present invention.
  • Fig. 5 is a schematic diagram of a partial structure of a battery cabinet in a power energy storage device according to Embodiment 2 of the present invention.
  • Fig. 6 is a schematic structural diagram of a power energy storage device according to Embodiment 2 of the present invention.
  • Fig. 7 is a flowchart of a control method of a power energy storage device according to Embodiment 3 of the present invention.
  • Fig. 8 is a specific flow chart of a control method of a power energy storage device according to Embodiment 3 of the present invention.
  • Fig. 9 is a flowchart of step S102 in the control method of the power energy storage device according to the third embodiment of the present invention.
  • FIG. 1 shows a schematic diagram of modules in this embodiment.
  • the safety processing device of this embodiment includes: a temperature monitoring module 11, a temperature control module 12 and a security module 13.
  • the temperature monitoring module 11 is used to collect the cell temperature change of each cell in the battery pack.
  • the temperature monitoring module 11 may use a temperature sensor such as an optical fiber temperature sensor, and the cell temperature change may include But it is not limited to the temperature rise or temperature difference of the battery cell.
  • the temperature control module 12 is used to determine whether the maximum cell temperature change among all cell temperature changes in the battery pack collected by the temperature monitoring module 11 falls within one of a plurality of temperature change ranges, where each temperature change range can be based on actual conditions.
  • the application performs custom settings, and different temperature ranges can correspond to different battery pack processing methods. If the temperature control module 12 determines that it is yes, it generates a temperature control instruction according to the temperature change range within which the maximum cell temperature change falls.
  • the temperature control instruction includes processing the battery pack according to the processing method corresponding to the temperature change range that falls.
  • the security module 13 is used to execute the temperature control command generated by the temperature control module 12, and process the battery pack in a processing manner corresponding to the temperature change range within which the maximum cell temperature change falls, and play a role in battery pack safety precautions.
  • the battery pack processing methods may include, but are not limited to, cooling, power-off, and isolation.
  • cooling, power-off, and isolation the role of cooling, power-off, and isolation on the safety of the battery pack is continuously deepened, and then cooling and power-off
  • the minimum value of the temperature change range corresponding to the three isolation treatment methods can be from low to high.
  • the relationship between the above three treatment methods and the temperature change range can be shown in FIG. 2.
  • the battery pack can be cooled separately (falling into the cooling but not falling into the disconnection
  • the temperature change range corresponding to the power supply) cooling and powering off the battery pack (falling into the temperature change range corresponding to the power failure but not falling into the isolation), cooling the battery pack, and isolating the battery pack ( Falling into the temperature change range corresponding to isolation) these three combined treatment methods.
  • the security module 13 may include a cooling unit 131.
  • the cooling unit 131 is used to cool the battery pack to perform safety from the outside of the battery pack. Take precautions to avoid further increase in the temperature of the battery pack.
  • the security module 13 may also include a switch unit 132.
  • the switch unit 132 When the processing method corresponding to the temperature change range in which the maximum cell temperature change falls is power off, the switch unit 132 is used to cut off the electrical connection of the battery pack, thereby preventing the battery pack from further discharging Heat is released during the process, causing heat hazards.
  • the minimum value of the temperature change range corresponding to the power-off processing method is greater than the minimum value of the temperature change range corresponding to the cooling processing method, the current maximum cell temperature also falls within the temperature change range of the processing method as cooling, which can be understood as:
  • the cooling method can no longer contain the further increase in the temperature change of the battery cell, so that the battery pack can be powered off while cooling the battery pack.
  • the security module 13 may also include an isolation unit 133.
  • the isolation unit 133 When the processing method corresponding to the temperature range within which the maximum cell temperature change falls is isolation, the isolation unit 133 is used to push the battery pack out of a preset distance, where the preset distance can be based on the battery The actual location of the battery pack is set to avoid fires in the original location of the battery pack, which may affect the safety of other electrical modules around it.
  • the isolation unit 133 may include, but is not limited to, an elastic component, a push rod component, an airbag component, and the like.
  • FIG. 3 shows a schematic diagram of a module of this embodiment.
  • the power energy storage device of this embodiment includes: a temperature control module 21, a security module 22 and a number of battery boxes 23.
  • the battery box 23 is provided with a battery pack 231 and a temperature monitoring module 232.
  • the battery pack 231 includes a number of cells.
  • the temperature monitoring module 232 is used to collect the power of each cell in the battery pack 231. Core temperature changes.
  • the temperature monitoring module 232 may use a temperature sensor such as an optical fiber temperature sensor, and the temperature change of the battery cell may include, but is not limited to, the temperature rise or temperature difference of the battery core.
  • the temperature control module 21 is used to determine whether the maximum cell temperature change among all cell temperature changes in the battery pack 231 collected by the temperature monitoring module 232 falls within one of a plurality of temperature change ranges, where different temperature change ranges can be Corresponding to different battery pack handling methods. If the temperature control module 21 determines that it is yes, it generates a temperature control instruction according to the temperature change range within which the maximum cell temperature change falls.
  • the temperature control instruction includes processing the battery pack 231 according to a processing method corresponding to the temperature change range that falls.
  • the security module 22 is configured to execute the temperature control command generated by the temperature control module 21 to process the battery pack 231 in a processing manner corresponding to the temperature change range within which the maximum cell temperature change falls, and play a role in battery pack safety precautions.
  • the temperature monitoring module 232 is specifically used to collect local cell temperature changes at multiple (for example, 5 or more) local positions of each cell in the battery pack 231, and the temperature control module 21 is specifically used to determine the battery Whether the maximum local cell temperature change among all the local cell temperature changes in the package 231 falls within one of the multiple temperature change ranges, if so, it is determined that the maximum cell temperature change in the battery package 231 falls within the multiple temperature change ranges one of the.
  • this embodiment is more sensitive to changes in the temperature of the battery core, and thus can feed back the changes in the temperature of the battery more accurately.
  • the third temperature change range, the second temperature change range, and the first temperature change range with the minimum value from small to large can be preset, which respectively correspond to the following battery pack processing methods: cooling, power off, and isolation .
  • the three temperature change ranges and the three battery pack processing methods in this embodiment are intended to illustrate but not limit this embodiment.
  • the role of cooling, power failure, and isolation in the safety and precaution of the battery pack is constantly deepened.
  • the temperature change of the battery cell will inevitably include a process from small to large as the battery pack is used.
  • the third temperature change range, the second temperature change range, and the first temperature change range can be set respectively to cool the battery pack, cool and power off the battery pack, cool the battery pack, and power off the battery.
  • the security module 22 includes a number of air exchange devices 221, used to achieve heat exchange between the power storage device and the outside air, from the outside of the battery pack 231 to take safety precautions, avoid the battery pack The temperature of 231 rose further.
  • the temperature control module 21 determines whether the maximum cell temperature change in the battery pack 231 falls within the third temperature change range, where the minimum value of the third temperature change range is the third threshold, and the third The threshold can be in the range of 5-7°C. If the temperature control module 21 determines that it is yes, then a third temperature control instruction is generated, and the air exchange device 221 is activated according to the third temperature control instruction to perform a connection between the power storage device and the outside air. Heat exchange to cool the battery pack 231.
  • the security module 22 further includes several energy storage converters 222.
  • 4 shows a circuit connection diagram of the energy storage converter 222 and the battery pack 231, wherein each battery pack 231 is electrically connected to an energy storage converter 222, and each energy storage converter 222 is connected to at least one The battery pack 231 is electrically connected, so that the energy storage converter 222 can realize individual control of multiple battery packs 231.
  • the temperature control module 21 while cooling the battery pack 231, in order to avoid further increase in cell temperature changes, the temperature control module 21 also determines whether the maximum cell temperature change in the battery pack 231 falls within the second temperature change range, where , The minimum value of the second temperature variation range is the second threshold value, and the value range of the second threshold value may be 10-12°C. If the temperature control module 21 determines that it is yes, it will generate the The second temperature control command for the electrical connection of the second battery pack of the battery cell in the second temperature range, and the energy storage converter 222 electrically connected to the second battery pack is used to execute the second temperature control command to cut off the second temperature control command.
  • the electrical connection of the battery pack is to prevent the second battery pack from radiating heat during the further discharge process, which may cause thermal hazards. It can be understood that the cooling method can no longer contain the further increase in the temperature change of the battery cell, so that the battery pack can be powered off while cooling the battery pack.
  • the battery box 23 further includes a box door 233
  • the security module 22 also includes a trigger mechanism 223 arranged in the battery box 23
  • the trigger mechanism 223 is arranged opposite to the box door 233
  • the battery pack 231 is arranged in Between the box door 233 and the trigger mechanism 223.
  • the temperature control module 21 while cooling the battery pack 231 and disconnecting its electrical connection with the energy storage converter 222, in order to avoid further increase in the temperature change of the battery cell, the temperature control module 21 also determines the maximum battery pack 231 Whether the cell temperature change falls within the first temperature change range, where the minimum value of the first temperature change range is the first threshold, and the value range of the first threshold can be 20-22°C, if the temperature judgment module 21 judges yes , The first temperature control instruction is generated, and the door of the first battery box of the first battery pack including the cells whose maximum cell temperature change falls within the first temperature change range is opened according to the first temperature control instruction, and The trigger mechanism 223 in a battery box pushes the first battery pack away from the first battery box according to the first temperature control instruction to realize the physical isolation between the first battery pack and the first battery box, thereby avoiding the first battery pack in the first battery pack.
  • a fire in a battery box may further affect the safety of other power consumption modules of the power storage device around the first battery box.
  • the trigger mechanism 223 may include any one of an elastic component, a push rod component, and an airbag component, wherein the elastic component is used to eject the first battery pack from the first temperature control command according to the first temperature control instruction.
  • the push rod assembly is used to push out and push the first battery pack away from the first battery box according to the first temperature control instruction
  • the airbag assembly is used to inflate and release the first battery according to the first temperature control instruction
  • the bag is pushed away from the first battery box.
  • the bottom of the battery box 23 can also be provided with several rollers, and the battery pack 231 can be provided on the several rollers.
  • the electric energy storage device may further include a temperature field monitoring module 24 for monitoring the temperature field in the electric energy storage device.
  • the temperature control module 21 can also be used to determine whether the maximum temperature difference in the temperature field is greater than a fourth threshold, where the fourth threshold can be customized according to actual applications.
  • the value range of the fourth threshold can be 5-7°C, if the temperature control module 21 determines that it is yes, it generates a fourth temperature control instruction.
  • the air exchange device 221 is activated according to the fourth temperature control instruction to perform heat exchange between the power storage device and the outside air to cool the battery pack 231.
  • the air exchange device 221 can be activated according to the third temperature control command generated based on the monitoring of the temperature change of the cell in the battery pack 231, or can be activated according to the temperature field of the power storage device.
  • the fourth instruction generated by the monitoring is started.
  • the battery pack 231 is set in the battery cabinet.
  • FIG. 5 shows a partial structural diagram of the battery cabinet in this embodiment.
  • the battery cabinet includes a battery pack 231, a trigger mechanism 223, and an energy storage converter.
  • the battery pack 231 is installed in the upper part of the energy storage converter cabinet, and the battery pack 231 is installed in the battery box 23, and the energy storage converter 222 is installed in the energy storage converter cabinet.
  • the battery box 23 may be arranged on the upper part of the energy storage converter 222.
  • a heat insulation layer may be provided between the battery box 23 and the energy storage converter 222.
  • FIG. 6 shows a schematic structural diagram of the power storage device of this embodiment.
  • the power storage device can adopt a box structure, where the power storage device includes a battery cabinet and a number of air exchange devices 221.
  • the energy storage converter (not shown in the figure) is provided at the lower part of the battery cabinet, and an air exchange device 221 is respectively provided on the top of the power storage device and a position adjacent to the energy storage converter.
  • heat exchange channels are formed in other remaining spaces of the electric energy storage device to realize circulating air exchange, which can reduce energy consumption compared with the conventional method of using air conditioning to control temperature.
  • This embodiment provides a method for controlling a power energy storage device, wherein the power energy storage device includes a plurality of battery boxes, the battery box is provided with a battery pack, and the battery pack includes a plurality of battery cells.
  • Fig. 7 shows a flowchart of this embodiment. Referring to Fig. 7, the control method of this embodiment includes:
  • S103 Process the battery pack according to a processing method corresponding to the temperature change range within which the maximum cell temperature change falls.
  • step S101 may include:
  • S101A Collect local cell temperature changes at multiple local positions of each cell in the battery pack
  • At least 5 local cell temperature changes can be collected for each cell.
  • Step S102 may include:
  • S102A Determine whether the maximum local cell temperature change in the battery pack falls within one of multiple temperature change ranges
  • step S102B If yes, go to step S102B;
  • S102B Determine that the maximum cell temperature change in the battery pack falls within one of multiple temperature change ranges.
  • this embodiment is more sensitive to changes in the temperature of the battery core, and thus can feed back the changes in the temperature of the battery more accurately.
  • the third temperature change range, the second temperature change range, and the first temperature change range with the minimum value from small to large can be preset, which respectively correspond to the following battery pack processing methods: cooling, power off, and isolation .
  • the three temperature change ranges and the three battery pack processing methods in this embodiment are intended to illustrate but not limit this embodiment.
  • the role of cooling, power failure, and isolation in the safety and precaution of the battery pack is constantly deepened.
  • the temperature change of the battery cell will inevitably include a process from small to large as the battery pack is used.
  • the third temperature change range, the second temperature change range, and the first temperature change range can be set respectively to cool the battery pack, cool and power off the battery pack, cool the battery pack, and power off the battery.
  • the electric energy storage device may also include several air exchange devices to realize heat exchange between the electric energy storage device and the outside air, and take safety precautions from the outside of the battery pack to prevent the temperature of the battery pack from further increasing.
  • the electric energy storage device may also include a number of energy storage converters, each battery pack is electrically connected to an energy storage converter, and each energy storage converter is electrically connected to at least one battery pack, thereby The energy storage converter can realize individual control of multiple battery packs.
  • the battery box may include a box door, and the battery box may also include a trigger mechanism. The trigger mechanism is arranged opposite to the box door, and the battery pack is arranged between the box door and the trigger mechanism. Based on this, referring to FIG. 9, step S102 may specifically include:
  • step S1022 If yes, go to step S1022; if not, go back to step S1021;
  • S1023 Determine whether the maximum battery cell temperature change in the battery pack falls within the second temperature change range
  • step S1024 If yes, go to step S1024; if not, go back to step S1021;
  • the energy storage converter electrically connected to the second battery pack including the cells whose maximum cell temperature change falls within the second temperature change range cuts off the electrical connection with the second battery pack;
  • S1025 Determine whether the maximum battery cell temperature change in the battery pack falls within the first temperature change range
  • step S1026 If yes, go to step S1026; if not, go back to step S1023;
  • the minimum values of the third temperature change range, the second temperature change range, and the first temperature change range are the third threshold, the second threshold, and the first threshold, respectively, where the value range of the third threshold can be It is 5-7°C, the value range of the second threshold is 10-12°C, and the value range of the first threshold can be 20-22°C.
  • step S1022 After the battery pack is cooled down in step S1022, as the battery pack discharges, there is a possibility that the maximum cell temperature will drop and rise again until it falls into the second temperature change range and the electrical connection with the battery pack is cut off in step S1024. , The use of cooling methods can no longer contain the further increase in the temperature change of the battery cell. In order to prevent the battery pack from releasing heat during the further discharging process and cause thermal hazards, avoid further increase in the temperature change of the battery cell, so that the battery can be Power off the bag while it is cooling down.
  • step S1024 if the maximum battery cell temperature change still increases or even falls within the first temperature change range, there may be a situation where the battery pack that is powered off spontaneously ignites and requires further safety precautions. Then, step S1026 realizes the battery pack and the battery box. Physical isolation, so as to avoid spontaneous combustion of the battery pack in the battery box, which may affect the safety of other power-consuming modules of the power storage device around the battery box.
  • the air exchange device when the determination in step S1021 is yes, can be activated. This is based on the monitoring of the temperature change of the cells in the battery pack. Further, in this embodiment, it can also be based on the power storage device. The air exchange device is activated by monitoring the temperature field. Based on this, the control method of this embodiment may further include the following steps:
  • the value range of the fourth threshold may be 5-7°C.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Secondary Cells (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Protection Of Static Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention porte sur un dispositif de traitement de sécurité pour bloc-batterie, sur un dispositif de stockage d'énergie électrique et sur un procédé de commande associé. Le dispositif de traitement de sécurité comprend : un module de surveillance de température pour acquérir une variation de température de cellule de chaque cellule dans le bloc-batterie; un module de régulation de température pour déterminer si une variation de température de cellule maximale dans le bloc-batterie s'inscrit dans une plage d'une pluralité de plages de variation de température, et, si tel est le cas, générer, en fonction de la plage de variation de température dans laquelle s'inscrit la variation de température de cellule maximale, une instruction de régulation de température comprenant un mode de traitement de bloc-batterie; et un module de protection de sécurité pour exécuter l'instruction de régulation de température. Par surveillance de la variation de température de cellule maximale dans le bloc-batterie, et traitement du bloc-batterie selon un procédé de traitement correspondant à la plage de variation de température dans laquelle s'inscrit la variation de température de cellule maximale dans le bloc-batterie, un emballement thermique du bloc-batterie peut être empêché activement et efficacement, ce qui permet d'éviter une perte irréparable.
PCT/CN2020/098607 2019-06-27 2020-06-28 Dispositif de traitement de sécurité pour bloc-batterie, dispositif de stockage d'énergie électrique et procédé de commande associé Ceased WO2020259699A1 (fr)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113500917A (zh) * 2021-06-24 2021-10-15 烟台创为新能源科技股份有限公司 一种锂离子电池箱充保护气体的方法
CN113561851A (zh) * 2021-07-22 2021-10-29 上汽通用五菱汽车股份有限公司 电池管理系统温控方法、车辆及计算机可读存储介质
CN115333049A (zh) * 2022-10-14 2022-11-11 深圳海润新能源科技有限公司 电池模块热失控处理方法、装置、电子设备及存储介质
CN115483512A (zh) * 2022-10-14 2022-12-16 厦门海辰储能科技股份有限公司 一种储能装置
DE102023004658A1 (de) 2022-11-26 2024-06-06 Mercedes-Benz Group AG Thermisches Durchgehen des Batteriepacks

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114883672B (zh) * 2019-06-27 2025-04-29 奥动新能源汽车科技有限公司 电池包的安全处理装置、电力储能装置及其控制方法
CN112895976B (zh) * 2021-02-01 2022-06-24 重庆峘能电动车科技有限公司 电芯预警保护方法及系统
KR102879349B1 (ko) * 2024-07-31 2025-10-31 주식회사 오씨모바일 화재 확산방지장치를 구비한 전기자동차 긴급충전시스템

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005011757A (ja) * 2003-06-20 2005-01-13 Toyota Motor Corp 二次電池の温度異常検知装置および異常検知方法
CN103090983A (zh) * 2011-10-28 2013-05-08 株式会社牧田 温度检测装置以及电池组
CN108376810A (zh) * 2018-02-12 2018-08-07 威马智慧出行科技（上海）有限公司 动力电池热管理方法及系统
CN109747479A (zh) * 2018-12-28 2019-05-14 芜湖鑫芯微电子有限公司 一种混合动力汽车的电源管理芯片及系统

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100492752C (zh) * 2001-01-10 2009-05-27 杨泰和 供对可充电电池充电的充电装置
CA2523240C (fr) * 2005-10-11 2009-12-08 Delaware Systems Inc. Module batterie universel et module de commande connexe
US7531270B2 (en) * 2006-10-13 2009-05-12 Enerdel, Inc. Battery pack with integral cooling and bussing devices
JP4660523B2 (ja) * 2007-09-19 2011-03-30 レノボ・シンガポール・プライベート・リミテッド 電池セルの表面温度で充電制御する充電システム
US8219333B2 (en) * 2010-06-29 2012-07-10 O2Micro, Inc Battery management systems for protecting batteries from fault conditions
CN102842738B (zh) * 2012-09-04 2015-01-07 西安交通大学 一种电动汽车用锂离子电池阻燃防爆装置及方法
US20160294021A1 (en) 2013-11-01 2016-10-06 Nec Corporation Charging apparatus, electricity storage system, charging method, and program
CN104979594B (zh) * 2014-04-02 2018-02-09 比亚迪股份有限公司 动力电池的控制方法及系统
JP2017118696A (ja) 2015-12-24 2017-06-29 セイコーエプソン株式会社 充電装置、プリンター、及び、充電方法
JP6717123B2 (ja) * 2016-08-31 2020-07-01 トヨタ自動車株式会社 組電池の異常検出装置
CN106374152B (zh) * 2016-09-30 2019-08-13 北京珠穆朗玛移动通信有限公司 一种电池异常处理方法、装置、移动终端和系统
CN106374588B (zh) * 2016-11-17 2018-04-10 深圳市盈动力科技有限公司 一种高压锂电池包故障的安全管理系统
CN106532165A (zh) * 2016-12-15 2017-03-22 安徽扬能电子科技有限公司 一种电池智能高效控制系统
CN106505269A (zh) * 2016-12-19 2017-03-15 蔡秋华 一种智能家居用锂离子电池运行激活系统
CN106785220B (zh) * 2017-01-23 2019-02-05 威马汽车科技集团有限公司 一种电池包温度控制方法
CN107768749B (zh) * 2017-09-22 2020-02-14 北京精密机电控制设备研究所 一种具备自动灭火功能的电池箱
CN108490367B (zh) * 2018-05-28 2020-09-04 青岛美凯麟科技股份有限公司 动力电池自动检测系统及方法、电池安全判定及处置方法
CN109742458A (zh) * 2018-11-28 2019-05-10 上海松岳电源科技有限公司 一种用于动力电池系统锂电池组充放电能力提升的装置
CN109698310B (zh) * 2018-12-21 2022-05-27 江苏正力新能电池技术有限公司 一种管道连通型电源系统及其安全管理方法
CN109638369B (zh) * 2018-12-26 2021-06-04 无锡锐祺通讯技术有限公司 具有一体化bms控制板的电池组、控制板布置和工作方法
CN114883672B (zh) * 2019-06-27 2025-04-29 奥动新能源汽车科技有限公司 电池包的安全处理装置、电力储能装置及其控制方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005011757A (ja) * 2003-06-20 2005-01-13 Toyota Motor Corp 二次電池の温度異常検知装置および異常検知方法
CN103090983A (zh) * 2011-10-28 2013-05-08 株式会社牧田 温度检测装置以及电池组
CN108376810A (zh) * 2018-02-12 2018-08-07 威马智慧出行科技（上海）有限公司 动力电池热管理方法及系统
CN109747479A (zh) * 2018-12-28 2019-05-14 芜湖鑫芯微电子有限公司 一种混合动力汽车的电源管理芯片及系统

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113500917A (zh) * 2021-06-24 2021-10-15 烟台创为新能源科技股份有限公司 一种锂离子电池箱充保护气体的方法
CN113561851A (zh) * 2021-07-22 2021-10-29 上汽通用五菱汽车股份有限公司 电池管理系统温控方法、车辆及计算机可读存储介质
CN115333049A (zh) * 2022-10-14 2022-11-11 深圳海润新能源科技有限公司 电池模块热失控处理方法、装置、电子设备及存储介质
CN115483512A (zh) * 2022-10-14 2022-12-16 厦门海辰储能科技股份有限公司 一种储能装置
CN115333049B (zh) * 2022-10-14 2023-02-14 深圳海润新能源科技有限公司 电池模块热失控处理方法、装置、电子设备及存储介质
CN115483512B (zh) * 2022-10-14 2023-09-08 厦门海辰储能科技股份有限公司 一种储能装置
DE102023004658A1 (de) 2022-11-26 2024-06-06 Mercedes-Benz Group AG Thermisches Durchgehen des Batteriepacks

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