CN113437398B - Battery thermal runaway treatment method, device, vehicle and medium - Google Patents

Battery thermal runaway treatment method, device, vehicle and medium Download PDF

Info

Publication number
CN113437398B
CN113437398B CN202110695100.0A CN202110695100A CN113437398B CN 113437398 B CN113437398 B CN 113437398B CN 202110695100 A CN202110695100 A CN 202110695100A CN 113437398 B CN113437398 B CN 113437398B
Authority
CN
China
Prior art keywords
battery
assembly
spray head
thermal runaway
temperature
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.)
Active
Application number
CN202110695100.0A
Other languages
Chinese (zh)
Other versions
CN113437398A (en
Inventor
李壮哲
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.)
Guangzhou Xiaopeng Motors Technology Co Ltd
Original Assignee
Guangzhou Xiaopeng Motors 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 Guangzhou Xiaopeng Motors Technology Co Ltd filed Critical Guangzhou Xiaopeng Motors Technology Co Ltd
Priority to CN202110695100.0A priority Critical patent/CN113437398B/en
Publication of CN113437398A publication Critical patent/CN113437398A/en
Application granted granted Critical
Publication of CN113437398B publication Critical patent/CN113437398B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Secondary Cells (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The embodiment of the invention provides a battery thermal runaway treatment method, a device, a vehicle and a medium, which are applied to a battery protection system, wherein the system comprises the following components: a first pipe loaded with a cooling liquid, a fluid driving component and a heat conducting component which are arranged on the first pipe, a second pipe, a first spray head and a second spray head which are arranged on the second pipe; the first pipeline is used for being connected with the battery component; the second pipeline is used for transmitting refrigerant media; the first spray head is arranged opposite to the battery component, and the second spray head is arranged opposite to the heat conduction component; the method comprises the following steps: detecting whether the battery assembly is in a thermal runaway state; if yes, executing at least one of preset thermal runaway treatment strategies; thermal runaway treatment strategies include: the embodiment of the invention can quickly reduce the temperature of the battery assembly in thermal runaway by controlling the first spray head to spray the refrigerant medium to the battery assembly, controlling the fluid driving assembly to drive the cooling liquid to circularly flow in the first pipeline and controlling the second spray head to spray the refrigerant medium to the heat conduction assembly.

Description

Battery thermal runaway treatment method, device, vehicle and medium
Technical Field
The invention relates to the technical field of batteries, in particular to a battery thermal runaway treatment method, a device, a vehicle and a medium.
Background
The safety of the pure electric vehicle is always concerned, and the safety problems of ignition, explosion, collision and the like of a power battery on the pure electric vehicle are always the most concerned problems of consumers. Safety problems such as ignition and combustion of the power battery are greatly related to thermal runaway of the power battery itself, for example: lithium dendrites inside the battery cause a short circuit between the anode and the cathode; external extrusion, needling and the like cause short-circuiting of the anode and the cathode; the external short circuit causes the problems of excessively rapid accumulation of heat in the battery, and the like, and the thermal runaway of the battery cell is easily caused. Once the battery core is out of control, the energy generated by fire or explosion possibly caused by the battery core is easy to cause thermal runaway expansion, the peripheral battery core is caused to be out of control, uncontrollable thermal runaway chain reaction is formed, and finally the battery safety problems such as fire and the like of the whole vehicle are caused to be serious.
After the battery is out of control, the whole vehicle generally carries out corresponding thermal runaway fault treatment to reduce the dangerous level caused by the thermal runaway. In some processing modes, an air cooling system or a liquid cooling system in the battery pack is specially designed, so that the battery pack is relatively complex; the battery emergency cut-off high-voltage relay breaks the fuse inside the battery pack to prevent the impact of large current, but the air conditioner cooling system cannot be used after the high voltage is applied, and the battery core cannot be subjected to thermal management cooling; some electronic fans are used for cooling the water temperature of the battery loop after high-voltage power down, but the power of the fans is larger, the storage battery is easy to lose power, and the fans cannot work continuously and cannot radiate heat continuously.
Disclosure of Invention
In view of the above, embodiments of the present invention have been made to provide a battery thermal runaway treatment method, apparatus, vehicle, and medium that overcome or at least partially solve the above problems.
In order to solve the above problems, an embodiment of the present invention discloses a battery thermal runaway processing method, which is applied to a battery protection system, the system comprising: a first pipe loaded with a cooling liquid, a fluid driving component and a heat conducting component which are arranged on the first pipe, a second pipe, a first spray head and a second spray head which are arranged on the second pipe; the first pipeline is used for being connected with the battery component; the second pipeline is used for transmitting refrigerant media; the first spray head is arranged opposite to the battery assembly, and the second spray head is arranged opposite to the heat conduction assembly; the method comprises the following steps:
detecting whether the battery assembly is in a thermal runaway state;
if yes, executing at least one of preset thermal runaway treatment strategies;
the thermal runaway treatment strategy includes: the first spray head is controlled to spray the refrigerant medium to the battery assembly, the fluid driving assembly is controlled to drive the cooling liquid to circularly flow in the first pipeline, and the second spray head is controlled to spray the refrigerant medium to the heat conducting assembly.
Optionally, the battery protection system further comprises: a temperature detection assembly; the detecting whether the battery assembly is in a thermal runaway state includes:
acquiring the battery temperature obtained by the temperature detection assembly aiming at the battery assembly;
judging whether the battery assembly meets a preset thermal runaway condition based on the battery temperature;
if yes, determining that the battery assembly is in a thermal runaway state.
Optionally, one end of the second pipe is connected with a main medium source for providing the refrigerant medium; a first valve is arranged between the main medium source and the first spray head; the controlling the first spray head to spray the refrigerant medium to the battery assembly comprises:
opening the first valve to enable the refrigerant medium of the main medium source to be transferred in the second pipeline;
and opening the first spray head to spray the refrigerant medium towards the battery assembly.
Optionally, the battery protection system further comprises a pressure detection assembly disposed between the first valve and the second spray head; the method further comprises the steps of:
acquiring pressure information obtained by the pressure detection assembly aiming at the refrigerant medium;
Judging whether the pressure information is larger than a preset first pressure threshold value or not;
if yes, the opening state of the first valve is adjusted to reduce the output of the refrigerant medium of the main medium source.
Optionally, the controlling the fluid drive assembly to drive the coolant to circulate in the first conduit includes:
if the pressure information is smaller than a preset second pressure threshold value, judging whether the battery temperature is larger than a preset first temperature value or not;
and if yes, controlling the fluid driving assembly to drive the cooling liquid to circularly flow in the first pipeline.
Optionally, the battery protection system further comprises: a source of backup media and a second valve; one end of the second valve is connected with the second pipeline, and the other end of the second valve is connected with the standby medium source; the method further comprises the steps of:
and if the pressure information is smaller than a preset second pressure threshold value, opening the second valve so that the standby medium source transmits the refrigerant medium to the second pipeline.
Optionally, the temperature detection assembly is further connected to the first conduit or is partially immersed in the cooling liquid; the controlling the second nozzle to spray the refrigerant medium to the heat conduction assembly comprises:
Acquiring the temperature of the cooling liquid obtained by the temperature detection assembly aiming at the cooling liquid;
judging whether the temperature of the cooling liquid is larger than a preset second temperature value or not;
if yes, the second spray head is started to spray the refrigerant medium to the heat conduction component.
Optionally, the method further comprises:
when the temperature of the cooling liquid is smaller than a preset third temperature value, the second spray head is closed;
closing the fluid drive assembly when the battery temperature is less than a preset fourth temperature value;
and closing the first spray head when the battery assembly does not meet the thermal runaway condition.
The embodiment of the invention also discloses a battery thermal runaway treatment device, which is positioned in a battery protection system, and the system comprises: a first pipe loaded with a cooling liquid, a fluid driving component and a heat conducting component which are arranged on the first pipe, a second pipe, a first spray head and a second spray head which are arranged on the second pipe; the first pipeline is used for being connected with the battery component; the second pipeline is used for transmitting refrigerant media; the first spray head is arranged opposite to the battery assembly, and the second spray head is arranged opposite to the heat conduction assembly; the device comprises:
A state detection module for detecting whether the battery assembly is in a thermal runaway state;
the thermal runaway protection module is used for calling at least one sub-module in a preset thermal runaway treatment strategy module if the battery assembly is in a thermal runaway state;
the thermal runaway treatment strategy module includes:
the first spray head opening sub-module is used for controlling the first spray head to spray the refrigerant medium to the battery assembly when the battery assembly is determined to meet the preset thermal runaway condition;
the fluid driving assembly opening sub-module is used for controlling the fluid driving assembly to drive the cooling liquid to circularly flow in the first pipeline;
the second nozzle opening sub-module is used for controlling the second nozzle to spray the refrigerant medium to the heat conduction assembly.
The embodiment of the invention also discloses a vehicle, which comprises: a processor, a memory, and a computer program stored on the memory and capable of running on the processor, which when executed by the processor, performs the steps of the battery thermal runaway processing method as described above.
The embodiment of the invention also discloses a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program realizes the steps of the battery thermal runaway treatment method when being executed by a processor.
The embodiment of the invention has the following advantages:
when detecting that the battery pack is in the thermal runaway state, spray the refrigerant medium in the second pipeline to the battery pack through control first shower nozzle, with directly cooling down to the battery pack, drive the coolant liquid through control fluid drive assembly and circulate in first pipeline, can be with the heat energy conduction to the air of coolant liquid when setting up the heat conduction subassembly on first pipeline, make the coolant liquid can continuously cool down to the battery pack, spray the refrigerant medium to the heat conduction subassembly through control second shower nozzle, absorb the heat energy of heat conduction subassembly through the refrigerant medium, can accelerate the heat dissipation of coolant liquid, and then accelerate the cooling down of coolant liquid to the battery pack, thereby realize in time effectively cooling down to the battery pack through refrigerant medium and/or coolant liquid when the battery pack takes place thermal runaway, reduce the probability of thermal diffusion that the battery pack thermal runaway brought, protect the battery pack, when the battery pack sets up in the vehicle, can effectively protect other spare parts in the vehicle, reduce the emergence probability that the vehicle leads to the accident because of the battery is overheated.
Drawings
FIG. 1 is a schematic diagram of a battery protection system according to the present invention;
FIG. 2 is a flow chart of steps of an embodiment of a battery thermal runaway processing method provided by the present invention;
fig. 3 is a block diagram illustrating an embodiment of a thermal runaway device for a battery according to the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
One of the core ideas of the embodiment of the present invention is to provide a battery protection system for the battery pack 107, the battery protection system comprising: a first pipe 101 loaded with a cooling liquid, a fluid driving assembly 102 and a heat conducting assembly 103 provided on the first pipe 101, and a second pipe 104, a first nozzle 105 and a second nozzle 106 provided on the second pipe 104; the first pipe 101 is used for being connected with a battery assembly 107; the second pipe 104 is used for transferring refrigerant medium; the first nozzle 105 is disposed opposite to the battery assembly 107, and the second nozzle 106 is disposed opposite to the heat conducting assembly 103; when the battery assembly 107 is detected to be in a thermal runaway state, the first spray head 105 is controlled to spray the refrigerant medium to the battery assembly 107, and/or the fluid driving assembly 102 is controlled to drive the cooling liquid to circularly flow, and/or the second spray head 106 is controlled to spray the refrigerant medium to the heat conduction assembly 103, so that the battery assembly 107 with the thermal runaway state can be effectively cooled, serious damage to the battery assembly 107 caused by heat energy is effectively prevented, and accidents caused by the heat energy of the battery assembly 107 being diffused to surrounding components are avoided.
Referring to fig. 1, there is shown a battery protection system provided by the present invention, the system comprising: a first pipe 101 loaded with a cooling liquid, a fluid driving assembly 102 and a heat conducting assembly 103 provided on the first pipe 101, and a second pipe 104, a first nozzle 105 and a second nozzle 106 provided on the second pipe 104; the first pipe 101 is used for being connected with a battery assembly 107; the second pipe 104 is used for transferring refrigerant medium; the first nozzle 105 is disposed opposite the battery assembly 107, and the second nozzle 106 is disposed opposite the heat conductive assembly 103.
The first pipe 101 can store a coolant, and the coolant can flow in the first pipe 101. The cooling fluid may be composed of one or more substances, and the specific chemical composition and proportion of the cooling fluid are not limited in the practice of the present invention. In one example, the cooling fluid is composed of three parts, water, antifreeze, and additives.
The fluid drive assembly 102 may directly transfer the cooling fluid or increase the pressure of the cooling fluid so that the cooling fluid may circulate in the first conduit 101 under the drive of the fluid drive assembly 102. In one example, the fluid drive assembly 102 may be a water pump.
The heat conducting component 103 can additionally receive heat energy transferred by the cooling liquid and accelerate heat dissipation by increasing heat dissipation area.
The second conduit 104 is capable of storing a refrigerant medium that is capable of flowing within the second conduit 104. The refrigerant medium can be composed of one or more substances, and the specific chemical composition and proportion of the refrigerant medium are not limited in the implementation of the invention. In one example, the refrigerant medium is R134a (1, 2-tetrafluoroethane, CH 2 FCF 3 )。
When the first nozzle 105 is opened, if the pressure generated by the refrigerant medium inside the first nozzle 105 is greater than the pressure outside the first nozzle 105, the refrigerant medium inside the second pipe 104 can be sprayed out at the first nozzle 105.
The second nozzle 106 is similar to the first nozzle 105 in operation principle, and will not be described here again.
Referring to fig. 2, which is a flowchart illustrating steps of an embodiment of a thermal runaway treatment method for a battery according to the present invention, the embodiment of the present invention may be applied to a battery protection system as described above, and the embodiment of the present invention may include the steps of:
step 201, detecting whether the battery assembly is in a thermal runaway state;
the battery assembly 107 may include a plurality of electrical cells electrically connected in series and/or parallel. It will be appreciated that the battery assembly 107 may also include components such as a protective panel, an insulating panel, and the like.
The refrigerant medium stored in the second conduit 104 may be in a gaseous state, or a liquid state, or a mixture of gas and liquid. The refrigerant medium can absorb the heat energy of the battery in a heat conduction mode to cool the battery assembly 107.
The battery assembly 107 may be tested in real time to determine if it is in a thermal runaway condition.
Step 202, if the battery assembly 107 is in a thermal runaway state, executing at least one of preset thermal runaway treatment strategies; the thermal runaway treatment strategy includes: the first nozzle 105 is controlled to spray the refrigerant medium to the battery assembly 107, the fluid driving assembly 102 is controlled to drive the cooling liquid to circularly flow in the first pipeline 101, and the second nozzle 106 is controlled to spray the refrigerant medium to the heat conducting assembly 103.
When it is determined that the battery pack 107 is in a thermal runaway state, it is determined that an excessively high abnormality occurs in the temperature of the battery pack 107, and a preset thermal runaway treatment strategy needs to be performed to cool down the battery pack 107.
The thermal runaway treatment strategy may include spraying the coolant medium to the battery assembly 107 by controlling the first nozzle 105, and after spraying the coolant medium in the coolant medium second pipe 104, the coolant medium may perform an endothermic reaction, thereby absorbing heat energy of the battery assembly 107 and reducing a temperature of the battery assembly 107.
The thermal runaway treatment strategy further comprises that the flow of the cooling liquid in the first pipeline 101 can be driven by the control fluid driving assembly 102, and the heat energy balance of the cooling liquid is quickened by the flow of the cooling liquid, meanwhile, as the heat conducting assembly 103 is arranged in the first pipeline 101, the heat energy of the cooling liquid can be conducted to the heat conducting assembly 103, and the heat conducting assembly 103 is provided with a plurality of radiating surfaces so as to improve the efficiency of heat energy conduction to air. Through the circulation flow of the cooling liquid and the absorption of the heat energy of the cooling liquid by the heat conduction assembly 103 and the conduction of the heat energy into the air, the heat energy of the battery assembly 107 is further absorbed, and the heat dissipation of the battery assembly 107 is accelerated
The thermal runaway treatment strategy further comprises that the second spray head 106 can be controlled to spray the coolant medium to the heat conduction assembly 103, and the coolant medium can absorb heat energy in the heat conduction assembly 103, so that heat dissipation of the heat conduction assembly 103 is quickened, heat dissipation of cooling liquid is quickened, and heat dissipation effect to the battery assembly 107 is further improved.
In the embodiment of the invention, when the battery assembly 107 is detected to be in a thermal runaway state, the first spray head 105 is controlled to spray the refrigerant medium in the second pipeline 104 to the battery assembly 107, so that the battery assembly 107 is cooled directly, the fluid driving assembly 102 is controlled to drive the cooling liquid to circularly flow in the first pipeline 101, the heat conduction assembly 103 arranged on the first pipeline 101 can conduct the heat energy of the cooling liquid to the air, so that the cooling liquid can continuously cool the battery assembly 107, the second spray head 106 is controlled to spray the refrigerant medium to the heat conduction assembly 103, the heat energy of the heat conduction assembly 103 is absorbed through the refrigerant medium, the heat dissipation of the cooling liquid can be accelerated, and the cooling of the battery assembly 107 is further accelerated, so that the possibility of thermal diffusion caused by the thermal runaway of the battery assembly 107 can be effectively reduced in time through the refrigerant medium and/or the cooling liquid, the battery assembly 107 is protected, the rest parts in the vehicle can be effectively protected when the battery assembly 107 is arranged in the vehicle, and the occurrence probability of accidents caused by the overheat of the battery can be reduced.
In an alternative embodiment of the present invention, the battery protection system further includes: a temperature detection assembly; the detecting whether the battery assembly is in a thermal runaway state includes:
a substep S11, obtaining a battery temperature detected by the temperature detecting component for the battery component 107;
the temperature sensing assembly, which may include a positive temperature coefficient (PTC, positive Temperature Coefficient) thermistor or a negative temperature coefficient (NTC, negative Temperature Coefficient) thermistor, is capable of outputting a battery temperature matched to the battery assembly 107 in real time.
A substep S12 of determining whether the battery pack 107 satisfies a preset thermal runaway condition based on the battery temperature;
the thermal runaway condition may include a thermal runaway temperature, and when the battery temperature is not less than the thermal runaway temperature, determining that the battery assembly 107 satisfies the thermal runaway condition; when the battery temperature is less than the thermal runaway temperature, it is determined that the battery assembly 107 does not satisfy the thermal runaway temperature.
In the substep S13, if the battery assembly 107 meets a preset thermal runaway condition, it is determined that the battery assembly 107 is in a thermal runaway state.
When the battery temperature is not less than the thermal runaway temperature, it is determined that the battery pack 107 is thermally runaway, and then a thermal runaway processing strategy is subsequently performed to cool down the battery pack 107.
In an alternative embodiment of the present invention, one end of the second conduit 104 is connected to a primary media source 108 that provides the refrigerant media; a first valve 109 is disposed between the main media source 108 and the first spray head 105; the controlling the first nozzle 105 to spray the refrigerant medium to the battery pack 107 includes:
opening the first valve 109 to allow the refrigerant medium of the main medium source 108 to pass in the second conduit 104; the first spray head 105 is turned on to spray the refrigerant medium toward the battery pack 107.
A first valve 109 is provided in the second conduit 104, in particular, the first valve 109 is provided in the second conduit 104 between the first nozzle 105 and the main medium source 108.
When the first valve 109 is opened, the refrigerant medium stored in the main medium source 108 can be transferred to the first nozzle 105 and the second nozzle 106 along the second pipe 104; when the first valve 109 is closed, the refrigerant medium stored in the main medium source 108 cannot be transferred to the first nozzle 105 and the second nozzle 106.
For the positional relationship between the first nozzle 105 and the second nozzle 106, the refrigerant medium shown in fig. 1 may be transferred to the second nozzle 106 through the first valve 109 and the first nozzle 105; the refrigerant medium may be transferred to the first nozzle 105 through the first valve 109 and the second nozzle 106.
In one example, the primary media source 108 is an air conditioner that is capable of storing a refrigerant medium therein, and the air conditioner is capable of providing some or all of its stored refrigerant medium to the second conduit 104.
When it is determined that the battery pack 107 satisfies a preset thermal runaway condition, the first valve 109 is opened to enable the refrigerant medium in the main medium source 108 to be transferred along the second pipe 104, and the first nozzle 105 is opened to enable the first nozzle 105 disposed opposite to the battery pack 107 to spray the refrigerant medium toward the battery pack 107 when the refrigerant medium is transferred to the first nozzle 105, thereby cooling the battery pack 107.
In an alternative embodiment of the present invention, the battery protection system further includes a pressure sensing assembly 110 disposed between the first valve 109 and the second spray head 106; the method further comprises the steps of:
acquiring pressure information obtained by detecting the refrigerant medium by the pressure detection assembly 110;
judging whether the pressure information is larger than a preset first pressure threshold value or not;
if the pressure information is greater than a preset first pressure threshold, the opening state of the first valve 109 is adjusted to reduce the output of the refrigerant medium of the main medium source 108.
The pressure detection assembly 110 may include one or more pressure detection sensors.
The pressure detection assembly 110 is capable of detecting pressure information at a location in the second conduit 104 where it is located, from which it is determined whether a sufficient amount of refrigerant medium is present in the second conduit 104.
When the pressure information detected by the pressure detecting component 110 is greater than the preset first pressure threshold, it is determined that a certain amount of refrigerant medium is stored in the second pipe 104, and the open state of the first valve 109 may be adjusted, for example: the opening state of the first valve 109 is controlled by controlling the conduction ratio of the conduction area of the two ends of the second pipeline 104 where the first valve 109 is located to the cross-sectional area thereof. Specifically, the first valve 109 is fully opened when the conduction ratio is 100%; the first valve 109 is fully closed when the on-ratio is 0, and the refrigerant medium cannot be transferred from the main medium source 108 to the first nozzle 105.
When the pressure information is greater than the first pressure threshold, the conduction ratio of the first valve 109 may be reduced to reduce the amount of the refrigerant medium flowing through the first valve 109 from the main medium source 108 in a unit time, so as to reduce the output of the refrigerant medium from the main medium source 108.
In an alternative embodiment of the present invention, the controlling the fluid driving assembly 102 to circulate the cooling fluid in the first pipe 101 includes:
step S21, judging whether the battery temperature is larger than a preset first temperature value or not if the pressure information is smaller than a preset second pressure threshold value;
in the substep S22, if the battery temperature is greater than the preset first temperature value, the fluid driving assembly 102 is controlled to drive the cooling fluid to circulate in the first pipe 101.
If the pressure information is smaller than the preset second pressure threshold, it indicates that the remaining amount of the refrigerant medium in the second pipe 104 is smaller, the battery assembly 107 cannot be cooled effectively by spraying the refrigerant medium on the battery assembly 107, the battery temperature of the current battery assembly 107 is detected, if the battery temperature is greater than the first temperature value, it indicates that the battery assembly 107 is still too high, and the fluid driving assembly 102 is started if the battery assembly 107 needs to be cooled in an additional mode.
The cooling liquid can circulate in the first pipeline 101 under the drive of the fluid drive assembly 102, the first pipeline 101 can be in contact connection with the battery assembly 107, and the battery assembly 107 can conduct heat energy into the cooling liquid. The circulating coolant can accelerate its own heat dissipation, so that the battery assembly 107 can accelerate heat dissipation.
In an alternative embodiment of the present invention, the battery protection system further includes: a backup media source 111 and a second valve 112; one end of the second valve 112 is connected with the second pipeline 104, and the other end is connected with the standby medium source 111; the method further comprises the steps of:
if the pressure information is smaller than a preset second pressure threshold, the second valve 112 is opened, so that the standby medium source 111 transmits the refrigerant medium to the second pipeline 104.
Two ends of the second valve 112 are respectively connected with a standby medium source 111 and the second pipeline 104, and the standby medium source 111 stores refrigerant medium.
If the pressure information detected by the pressure detecting component 110 is less than the second pressure threshold, it indicates that the refrigerant medium remaining in the second pipe 104 is insufficient. If the main medium source 108 does not have the refrigerant medium capable of being transferred to the first nozzle 105 and the second nozzle 106, the second valve 112 may be opened, so that the refrigerant medium stored in the standby medium source 111 is transferred to the first nozzle 105 and the second nozzle 106.
In a specific application, the first valve 109 and the second valve 112 are shut-off valves.
In an alternative embodiment of the invention, the temperature sensing assembly is also connected to the first conduit or is partially immersed in the cooling liquid; the controlling the second spray head 106 to spray the refrigerant medium to the heat conducting component 103 may include:
Step S31, obtaining the temperature of the cooling liquid detected by the temperature detection assembly for the cooling liquid;
step S32, judging whether the temperature of the cooling liquid is larger than a preset second temperature value;
in the substep S31, if the temperature of the cooling liquid is greater than the preset second temperature value, the second nozzle 106 is turned on to spray the cooling medium to the heat conducting component 103.
The temperature of the cooling liquid can be determined first, if the temperature of the cooling liquid is greater than the second temperature value, which indicates that the temperature of the cooling liquid is too high, and the temperature of the battery assembly 107 needs to be accelerated to drop, the second nozzle 106 is opened, the cooling liquid is accelerated to dissipate heat through the heat conducting assembly 103 by spraying the refrigerant medium to the heat conducting assembly 103, the cooling temperature is reduced, and then the temperature of the battery assembly 107 is accelerated.
In an alternative embodiment of the invention, the method further comprises:
when the temperature of the cooling liquid is smaller than a preset third temperature value, the second spray head 106 is closed;
closing the fluid drive assembly 102 when the battery temperature is less than a preset fourth temperature value;
when the battery assembly 107 does not satisfy a thermal runaway condition, the first nozzle 105 is turned off.
When the temperature of the cooling liquid is smaller than the third temperature value, it indicates that the battery assembly 107 is lowered to a certain extent, the second nozzle 106 can be closed to save the refrigerant medium, and the fluid driving assembly 102 is kept on, so that the battery assembly 107 is cooled continuously by the circulating cooling liquid.
When the battery temperature is less than the fourth temperature value, indicating that the temperature of the battery assembly 107 has been further reduced, and is already within a safe temperature range, the fluid drive assembly 102 may be shut down.
When the battery temperature drops below the thermal runaway temperature, the first spray head 105 may be turned off.
Wherein the third temperature value is not greater than the second temperature value, and the fourth temperature value is not greater than the first temperature value.
In one example, when the coolant medium is consumed, the first and second spray heads 105, 106 may be turned off, continuing to cool the battery assembly 107 by circulating the coolant until the battery assembly 107 temperature is less than the thermal runaway temperature.
When the embodiment of the invention is applied to a vehicle, the first valve 109, the second valve 112 and the pressure detection assembly 110 are controlled by an HVAC (Heating Ventilation and Air Conditioning ) controller in the vehicle, the temperature detection assembly is located in a BMS (Battery Management System ) of the vehicle, the BMS and the HVAC controller are in communication through a CAN (Controller Area Network ) bus connection, the BMS and the HVAC controller are controlled by a vehicle controller, and the battery protection system is powered by a 12 volt power supply in the vehicle.
The following is an application example of the embodiment of the present invention, and includes the following steps:
1. when the battery assembly 107 is out of control, the first valve 109 and the first spray head 105 are opened, and the refrigerant medium is sprayed to the battery assembly 107 to cool the battery assembly 107;
2. if the pressure sensor detects that the pressure of the refrigerant pipeline is greater than a first pressure threshold, the opening proportion of the first valve 109 can be adjusted, and the output of the refrigerant medium is reduced;
3. when the first valve 109 is opened with the first nozzle 105, the first nozzle 105 may be closed after the temperature of the battery assembly 107 is cooled to a safe temperature, and no further cooling is required;
4. when the pressure sensor detects that the pressure is smaller than the second pressure threshold, if the temperature of the battery assembly 107 is still too high (the battery temperature is larger than the first temperature value), the water pump is started, the cooled cooling liquid is circulated, the battery assembly 107 is continuously cooled until the temperature of the battery assembly 107 is lower than the safe temperature, and then the water pump is turned off;
5. opening the second valve 112 to supplement the refrigerant medium, and closing the first valve 109 when the second pipeline reaches a certain pressure;
6. when the temperature of the cooling liquid of the battery pack is detected to be larger than a second temperature value, a second spray head is opened, a refrigerant medium is sprayed to the heat exchanger, and the water pump is driven to circulate water, so that the temperature of the cooling liquid is reduced, and meanwhile, the battery assembly 107 is cooled;
7. When the temperature of the cooling liquid of the battery pack is detected to be smaller than a third temperature value, the second spray head is closed, and if the temperature of the battery assembly 107 is too high (larger than the first temperature value), the water pump is driven to circulate continuously, and the battery assembly 107 is cooled continuously;
8. when the temperature of the cooling liquid of the battery pack is detected to be smaller than the third temperature value, the second spray head is closed, and if the temperature of the battery assembly 107 is not high (smaller than the fourth temperature value) at the moment, the water pump is closed;
in addition, control rules may be set: when the temperature of the battery assembly 107 falls to a safe temperature (less than the thermal runaway temperature), one or both may be shut down.
It should be noted that, for simplicity of description, the method embodiments are shown as a series of acts, but it should be understood by those skilled in the art that the embodiments are not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts are not necessarily required by the embodiments of the invention.
Referring to fig. 3, there is shown a block diagram of an embodiment of a thermal runaway handling device for a battery of the present invention, the device being located in a battery protection system, the system comprising: a first pipe loaded with a cooling liquid, a fluid driving component and a heat conducting component which are arranged on the first pipe, a second pipe, a first spray head and a second spray head which are arranged on the second pipe; the first pipeline is used for being connected with the battery component; the second pipeline is used for transmitting refrigerant media; the first spray head is arranged opposite to the battery assembly, and the second spray head is arranged opposite to the heat conduction assembly; the embodiment of the invention specifically comprises the following modules:
a state detection module 301 for detecting whether the battery assembly is in a thermal runaway state;
a thermal runaway protection module 302, configured to invoke at least one sub-module in a preset thermal runaway processing policy module 303 if the battery assembly is in a thermal runaway state;
the thermal runaway handling policy module 303 includes:
the first spray head opening sub-module is used for controlling the first spray head to spray the refrigerant medium to the battery assembly;
the fluid driving assembly opening sub-module is used for controlling the fluid driving assembly to drive the cooling liquid to circularly flow in the first pipeline;
The second nozzle opening sub-module is used for controlling the second nozzle to spray the refrigerant medium to the heat conduction assembly.
In an alternative embodiment of the present invention, the battery protection system further includes: a temperature detection assembly; the state detection module 301 includes:
the battery temperature acquisition sub-module is used for acquiring the battery temperature obtained by the temperature detection assembly aiming at the battery assembly;
a thermal runaway determination sub-module for determining whether the battery assembly satisfies a preset thermal runaway condition based on the battery temperature;
and the thermal runaway determining sub-module is used for determining that the battery assembly is in a thermal runaway state if the battery assembly meets a preset thermal runaway condition.
In an alternative embodiment of the present invention, one end of the second conduit is connected to a main media source that provides the refrigerant media; a first valve is arranged between the main medium source and the first spray head; the first spray head opening submodule is used for opening the first valve to enable the refrigerant medium of the main medium source to be transferred in the second pipeline, and opening the first spray head to spray the refrigerant medium towards the battery assembly.
In an alternative embodiment of the invention, the battery protection system further comprises a pressure sensing assembly disposed between the first valve and the second spray head; the apparatus further comprises:
the pressure information acquisition module is used for acquiring pressure information obtained by the pressure detection assembly aiming at the refrigerant medium;
the pressure information comparison module is used for judging whether the pressure information is larger than a preset first pressure threshold value or not;
and the opening state adjusting module is used for adjusting the opening state of the first valve to reduce the output of the refrigerant medium of the main medium source if the pressure information is larger than a preset first pressure threshold value.
In an alternative embodiment of the present invention, the fluid drive assembly opening submodule includes:
the battery temperature first comparison unit is used for judging whether the battery temperature is larger than a preset first temperature value or not if the pressure information is smaller than a preset second pressure threshold value;
and the fluid driving assembly control unit is used for controlling the fluid driving assembly to drive the cooling liquid to circularly flow in the first pipeline if the temperature of the battery is larger than a preset first temperature value.
In an alternative embodiment of the present invention, the battery protection system further includes: a source of backup media and a second valve; one end of the second valve is connected with the second pipeline, and the other end of the second valve is connected with the standby medium source; the apparatus further comprises:
and the second valve opening module is used for opening the second valve if the pressure information is smaller than a preset second pressure threshold value so that the standby medium source transmits the refrigerant medium to the second pipeline.
In an alternative embodiment of the present invention, the second nozzle opening submodule includes:
a cooling liquid temperature obtaining unit, configured to obtain a cooling liquid temperature obtained by the temperature detection assembly by detecting the cooling liquid;
the cooling liquid temperature comparison unit is used for judging whether the cooling liquid temperature is larger than a preset second temperature value or not;
and the second nozzle opening sub-module is used for opening the second nozzle to spray the refrigerant medium to the heat conduction component if the temperature of the cooling liquid is larger than a preset second temperature value.
In an alternative embodiment of the invention, the apparatus further comprises:
the second spray head closing module is used for closing the second spray head when the temperature of the cooling liquid is smaller than a preset third temperature value;
A fluid drive assembly shut-off module for shutting off the fluid drive assembly when the battery temperature is less than a preset fourth temperature value;
and the first spray head closing module is used for closing the first spray head when the battery assembly does not meet the thermal runaway condition.
For the device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments for relevant points.
The embodiment of the invention also provides a vehicle, which comprises: the battery thermal runaway processing method comprises a processor, a memory and a computer program which is stored in the memory and can run on the processor, wherein the computer program realizes the processes of the battery thermal runaway processing method embodiment when being executed by the processor, can achieve the same technical effects, and is not repeated here.
It will be appreciated that the vehicle described above further includes a battery protection system as described in connection with the battery thermal runaway management method embodiments described above.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, realizes the processes of the battery thermal runaway processing method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
It will be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the invention may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
The above detailed description of the battery thermal runaway processing method, device, vehicle and medium provided by the invention applies specific examples to illustrate the principle and implementation of the invention, and the above examples are only used to help understand the method and core idea of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.

Claims (10)

1. A battery thermal runaway treatment method, characterized by being applied to a battery protection system, the system comprising: a first pipe loaded with a cooling liquid, a fluid driving assembly and a heat conducting assembly arranged on the first pipe, and a second pipe, a first spray head, a second spray head and a pressure detecting assembly arranged on the second pipe; the first pipeline is used for being connected with the battery component; the second pipeline is used for transmitting refrigerant media; the first spray head is arranged opposite to the battery assembly, and the second spray head is arranged opposite to the heat conduction assembly; a temperature detection assembly connected to the battery assembly; the method comprises the following steps:
detecting whether the battery assembly is in a thermal runaway state;
if yes, executing a preset thermal runaway treatment strategy;
the thermal runaway treatment strategy includes: controlling the first spray head to spray the refrigerant medium to the battery assembly, and/or controlling the second spray head to spray the refrigerant medium to the heat conduction assembly, and/or controlling the fluid driving assembly to drive the cooling liquid to circularly flow in the first pipeline when the pressure information is smaller than a preset second pressure threshold value and the battery temperature is larger than a preset first temperature value;
One end of the second pipeline is connected with a main medium source for providing the refrigerant medium, and the main medium source is an air conditioner in the vehicle; the battery temperature is detected by the temperature detection assembly aiming at the battery assembly; the pressure information is obtained by detecting the refrigerant medium through the pressure detection assembly.
2. The method of claim 1, wherein the detecting whether the battery assembly is in a thermal runaway condition comprises:
acquiring the battery temperature;
judging whether the battery assembly meets a preset thermal runaway condition based on the battery temperature;
if yes, determining that the battery assembly is in a thermal runaway state.
3. A method according to claim 1 or 2, wherein a first valve is provided between the main medium source and the first spray head; the controlling the first spray head to spray the refrigerant medium to the battery assembly comprises:
opening the first valve to enable the refrigerant medium of the main medium source to be transferred in the second pipeline;
and opening the first spray head to spray the refrigerant medium towards the battery assembly.
4. A method according to claim 3, wherein the pressure sensing assembly is disposed between the first valve and the second spray head; the method further comprises the steps of:
acquiring the pressure information;
judging whether the pressure information is larger than a preset first pressure threshold value or not;
if yes, the opening state of the first valve is adjusted to reduce the output of the refrigerant medium of the main medium source.
5. The method of claim 4, wherein the battery protection system further comprises: a source of backup media and a second valve; one end of the second valve is connected with the second pipeline, and the other end of the second valve is connected with the standby medium source; the method further comprises the steps of:
and if the pressure information is smaller than a preset second pressure threshold value, opening the second valve so that the standby medium source transmits the refrigerant medium to the second pipeline.
6. The method of claim 5, wherein the temperature sensing assembly is further connected to the first conduit or is partially immersed in the cooling fluid; the controlling the second nozzle to spray the refrigerant medium to the heat conduction assembly comprises:
acquiring the temperature of the cooling liquid obtained by the temperature detection assembly aiming at the cooling liquid;
Judging whether the temperature of the cooling liquid is larger than a preset second temperature value or not;
if yes, the second spray head is started to spray the refrigerant medium to the heat conduction component.
7. The method of claim 6, wherein the method further comprises:
when the temperature of the cooling liquid is smaller than a preset third temperature value, the second spray head is closed;
closing the fluid drive assembly when the battery temperature is less than a preset fourth temperature value;
and closing the first spray head when the battery assembly does not meet the thermal runaway condition.
8. A battery thermal runaway management apparatus, said apparatus being located in a battery protection system, said system comprising: a first pipe loaded with a cooling liquid, a fluid driving assembly and a heat conducting assembly arranged on the first pipe, and a second pipe, a first spray head, a second spray head and a pressure detecting assembly arranged on the second pipe; the first pipeline is used for being connected with the battery component; the second pipeline is used for transmitting refrigerant media; the first spray head is arranged opposite to the battery assembly, and the second spray head is arranged opposite to the heat conduction assembly; a temperature detection assembly connected to the battery assembly; the device comprises:
A state detection module for detecting whether the battery assembly is in a thermal runaway state;
the thermal runaway protection module is used for calling a preset thermal runaway treatment strategy module if the battery assembly is in a thermal runaway state;
the thermal runaway treatment strategy module includes: at least one of the first spray head opening sub-module, the fluid driving assembly opening sub-module, and the second spray head opening sub-module;
the first spray head opening sub-module is used for controlling the first spray head to spray the refrigerant medium to the battery assembly;
the fluid driving assembly opening sub-module is used for controlling the fluid driving assembly to drive the cooling liquid to circularly flow in the first pipeline when the pressure information is smaller than a preset second pressure threshold value and the battery temperature is larger than a preset first temperature value;
the second spray head opening sub-module is used for controlling the second spray head to spray the refrigerant medium to the heat conduction assembly;
one end of the second pipeline is connected with a main medium source for providing the refrigerant medium, and the main medium source is an air conditioner in the vehicle; the battery temperature is detected by the temperature detection assembly aiming at the battery assembly; the pressure information is obtained by detecting the refrigerant medium through the pressure detection assembly.
9. A vehicle, characterized by comprising: a processor, a memory and a computer program stored on the memory and capable of running on the processor, which when executed by the processor, implements the steps of the battery thermal runaway processing method of any of claims 1-7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the battery thermal runaway processing method according to any one of claims 1 to 7.
CN202110695100.0A 2021-06-22 2021-06-22 Battery thermal runaway treatment method, device, vehicle and medium Active CN113437398B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110695100.0A CN113437398B (en) 2021-06-22 2021-06-22 Battery thermal runaway treatment method, device, vehicle and medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110695100.0A CN113437398B (en) 2021-06-22 2021-06-22 Battery thermal runaway treatment method, device, vehicle and medium

Publications (2)

Publication Number Publication Date
CN113437398A CN113437398A (en) 2021-09-24
CN113437398B true CN113437398B (en) 2023-05-12

Family

ID=77757304

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110695100.0A Active CN113437398B (en) 2021-06-22 2021-06-22 Battery thermal runaway treatment method, device, vehicle and medium

Country Status (1)

Country Link
CN (1) CN113437398B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114614160A (en) * 2022-04-11 2022-06-10 广汽埃安新能源汽车有限公司 Battery device, management system and management method of battery refrigerant

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016092007A (en) * 2014-10-29 2016-05-23 日本ドライケミカル株式会社 Thermal runaway suppression system of secondary battery
DE102019100329A1 (en) * 2019-01-08 2020-07-09 Jungheinrich Ag System and method for tempering a battery unit
JP2020202078A (en) * 2019-06-10 2020-12-17 サンデン・アドバンストテクノロジー株式会社 Battery cooling device

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202737006U (en) * 2012-08-15 2013-02-13 北京汽车新能源汽车有限公司 Air conditioner battery box for electric vehicle
US9379419B2 (en) * 2013-05-13 2016-06-28 The Boeing Company Active thermal management and thermal runaway prevention for high energy density lithium ion battery packs
CN103287252B (en) * 2013-06-14 2016-03-16 上海交通大学 Electrombile thermal management system
CN103407346B (en) * 2013-08-30 2016-03-23 奇瑞新能源汽车技术有限公司 A kind of thermal management system of whole pure electric vehicle
CN104852103B (en) * 2014-02-19 2018-03-13 广州汽车集团股份有限公司 A kind of device, method and automobile for being used to adjust temperature of powered cell
CN106921003B (en) * 2016-10-25 2019-09-06 蔚来汽车有限公司 The intelligence control system and method for batteries of electric automobile packet temperature
DE102017207966A1 (en) * 2017-05-11 2018-11-15 Mahle International Gmbh Energy storage device
CN113521599A (en) * 2018-12-28 2021-10-22 宁德时代新能源科技股份有限公司 Battery pack
CN109841920A (en) * 2019-03-07 2019-06-04 肇庆遨优动力电池有限公司 Battery pack radiator structure
CN209709130U (en) * 2019-03-15 2019-11-29 重庆工业职业技术学院 Pin type cooling device when power battery
CN112103416A (en) * 2019-06-17 2020-12-18 上汽通用汽车有限公司 Battery and safe battery system
CN110380155A (en) * 2019-07-19 2019-10-25 德萨智能科技(武汉)有限公司 A kind of power battery thermal runaway automatic safety device
CN110797603B (en) * 2019-09-25 2023-02-03 常州优谷新能源科技股份有限公司 Cooling device for new energy automobile power battery
CN111725582A (en) * 2020-05-29 2020-09-29 哲弗智能系统（上海）有限公司 Vehicle-mounted battery fireproof heat source management synchronization device and use method
CN112455283B (en) * 2020-11-25 2022-05-31 安徽江淮汽车集团股份有限公司 Battery thermal runaway processing method, device, equipment and storage medium
CN112843543A (en) * 2021-03-12 2021-05-28 北京南瑞怡和环保科技有限公司 Battery pack cooling and fire extinguishing device for energy storage power station

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016092007A (en) * 2014-10-29 2016-05-23 日本ドライケミカル株式会社 Thermal runaway suppression system of secondary battery
DE102019100329A1 (en) * 2019-01-08 2020-07-09 Jungheinrich Ag System and method for tempering a battery unit
JP2020202078A (en) * 2019-06-10 2020-12-17 サンデン・アドバンストテクノロジー株式会社 Battery cooling device

Also Published As

Publication number Publication date
CN113437398A (en) 2021-09-24

Similar Documents

Publication Publication Date Title
JP6687895B2 (en) Vehicle fuel cell warm-up device
CN109585973B (en) Power battery thermal management method and system
CN110600831B (en) Temperature control method and system for battery pack, electronic device and storage medium
US9379419B2 (en) Active thermal management and thermal runaway prevention for high energy density lithium ion battery packs
EP3913728B1 (en) Thermal management device, thermal management system and new energy vehicle
CN102324591A (en) Constant temperature control battery pack
CN111430840A (en) Control method and control system for delaying thermal diffusion of power battery pack
JP2012517662A (en) Thermal management methods for batteries
US11784362B2 (en) Power supply system, control method of power supply system and control device of power supply system
CN105070959A (en) Heat balance management device for power battery pack and management method of heat balance management device
CN113437398B (en) Battery thermal runaway treatment method, device, vehicle and medium
KR20200027225A (en) Insulation resistance maintenance system and maintenance method of fuel cell
CN113161647A (en) Battery pack, battery system and battery pack thermal runaway control method
CN113206317A (en) Cooling system and method for preventing heat spread of battery pack
CN113422125B (en) Battery protection system and vehicle
CN114448049A (en) Temperature control system and method and energy storage charging system
CN109473749B (en) Thermal management control method for power battery
CN109728380B (en) New energy vehicle and battery cooling control system, method and device thereof
WO2013086780A1 (en) Power supply
CN112930095B (en) Charging station temperature regulation and control system and regulation and control method
CN113206318A (en) Cooling system and method for preventing heat spread of battery pack
CN114475360B (en) Electric automobile motor cooling liquid recovery control method, electronic equipment and system
CN212257488U (en) Heat management device and new energy automobile
CN114497801A (en) Balanced heat dissipation control device of power battery
CN111384466B (en) Water pump fault processing method and system in power battery thermal management system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant