CN108736079A - A kind of power battery thermal runaway diffusion early warning system and method - Google Patents
A kind of power battery thermal runaway diffusion early warning system and method Download PDFInfo
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- CN108736079A CN108736079A CN201810305432.1A CN201810305432A CN108736079A CN 108736079 A CN108736079 A CN 108736079A CN 201810305432 A CN201810305432 A CN 201810305432A CN 108736079 A CN108736079 A CN 108736079A
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims description 11
- 238000002474 experimental method Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000007480 spreading Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
- 229910001416 lithium ion Inorganic materials 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
- 238000009781 safety test method Methods 0.000 description 1
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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—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
-
- 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
Abstract
The present invention is suitable for power battery technology field, provides a kind of power battery thermal runaway diffusion early warning system and method, the system include：Battery case, and the battery modules in battery case, it is connected in series or in parallel between battery modules, battery modules are made of the single battery being connected in series or in parallel, single battery is equipped with the first temperature sensor, battery modules are equipped with second temperature sensor, the pressure sensor and third temperature sensor that battery chamber interior wall is equipped with；Battery management system and the first temperature sensor, second temperature sensor, third temperature sensor and pressure sensor communication connect.The present invention is after detecting that thermal runaway occurs in single battery, judge whether the thermal runaway of single battery has been diffused into battery modules based on battery modules temperature, if having spread to battery modules, whether then monitor the thermal runaway of corresponding battery modules can be diffused into entire battery pack, accurately thermal diffusion can be judged, avoid unnecessary overreaction.
Description
Technical field
The invention belongs to power battery technology field, a kind of power battery thermal runaway diffusion early warning system and side are provided
Method.
Background technology
The new-energy automobiles such as electric vehicle have become the strategic development direction of various countries, and lithium ion battery is due to than energy
Height has extended cycle life, and has become electric vehicle first choice energy-storage battery.However there is potential heat is dangerous for lithium ion battery
Property, show as thermal runaway.There is thermal runaway in lithium ion battery, most since exothermic reaction occurs between inside battery material, produces
Raw a large amount of heat and gas.Battery is likely to that thermal runaway occurs, finally lures when overheating, overcharging, mechanical force is destroyed
Ignition calamity or explosion.In order to improve the safety of lithium ion battery, lithium ion battery must pass through relevant safety test method
Rule.However even if safety by being unable to ensure lithium ion battery if whole safety test projects.Power battery is electronic
The maximum security risk of automobile, once thermal runaway diffusion occurs for power battery, it may occur that the case where vehicle is burnt, or even cause people
The injures and deaths of member.
Existing thermal runaway detection technique is that thermal runaway based on single battery detects to be judged, but single battery
Thermal runaway fire not necessarily occurs, often cause overreaction.
Invention content
The embodiment of the present invention provides a kind of power battery thermal runaway diffusion early warning system, it is intended to solve based on single battery heat
There is overreact in detection thermal runaway out of control.
The invention is realized in this way a kind of power battery thermal runaway spreads early warning system, which includes：
Battery case, and the battery modules in battery case are connected in series or in parallel between battery modules, and battery modules are by going here and there
The single battery composition for joining or being connected in parallel, single battery are equipped with the first temperature sensor, and battery modules are equipped with the second temperature
Sensor is spent,
The pressure sensor and third temperature sensor that battery chamber interior wall is equipped with；
Battery management system and the first temperature sensor, second temperature sensor, third temperature sensor and pressure sensing
Device communication connection.
The invention is realized in this way a kind of power battery thermal runaway spreading early warning system based on power battery thermal runaway
Method for early warning is spread, this method comprises the following steps：
S1, the first temperature sensor are used to detect the temperature of single battery, and the single battery temperature detected is sent
To battery management system；
S2, second temperature sensor are used to detect the temperature of battery modules, and the battery modules temperature detected is sent
To battery management system；
S3, third temperature sensor and pressure sensor are respectively used to temperature and pressure in detection battery case, and will inspection
The battery case pressure and battery case temperature measured is sent to battery management system；
S4, temperature of the battery management system detection with battery modules where thermal runaway single battery reach second temperature threshold value
When, then it is determined as the first thermal diffusion；
Second temperature threshold value is that there are the battery modules temperature that single battery is in thermal runaway disperse state under experiment condition.
Further, after being determined as the first thermal diffusion, battery management system is based on battery case temperature and battery case pressure
Judge whether to cause the second thermal diffusion, the second thermal diffusion specifically refers to：
When battery case temperature and battery case pressure respectively reach third temperature threshold and pressure threshold, then initiation is judged
Two thermal diffusions,
Third temperature threshold and pressure threshold are that there are the electricity that battery modules are in thermal runaway disperse state under experiment condition
Pond box temperature degree and battery case pressure.
Further, after judging to cause the second thermal diffusion, battery management system is based on diffusion temperature pressure and time
Relation curve estimates the battery catches fire time.
The relation curve of diffusion temperature pressure and time are that battery modules are in the battery tested under thermal runaway diffusion conditions
Box temperature degree, tank pressure and the relation curve of time.
Further, the single battery detection of heat out of control specifically refers to：
Whether the temperature of detection single battery reaches the first temperature threshold, if testing result is yes, judges single battery
In thermal runaway；
First temperature threshold reaches single battery temperature when thermal runaway critical condition for single battery under experiment condition.
Power battery thermal runaway diffusion early warning system provided in an embodiment of the present invention has the advantages that：
1. after detecting that thermal runaway occurs in single battery, the thermal runaway of single battery is judged based on battery modules temperature
Whether battery modules have been diffused into, whether if having spread to battery modules, monitoring the thermal runaway of corresponding battery modules can spread
To entire battery pack, accurately thermal diffusion can be judged, avoid unnecessary overreaction；
2. after judging that thermal runaway occurs in battery pack, the diffusion velocity early warning of thermal runaway is provided, is conducive to driver and passenger and does
Go out optimum response.
Description of the drawings
Fig. 1 is the structural schematic diagram that power battery thermal runaway provided in an embodiment of the present invention spreads early warning system；
1. single battery, 2. battery modules, 3. battery cases, 4. second temperature sensors, 5. third temperature sensors, 6. pressures
Force snesor, 7. battery management systems.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is the structural schematic diagram that power battery thermal runaway provided in an embodiment of the present invention spreads early warning system, in order to just
In explanation, only show and the relevant part of the embodiment of the present invention.
The system includes：
Battery case, and the battery modules in battery case are connected in series or in parallel between battery modules, and battery modules are by going here and there
The single battery composition for joining or being connected in parallel, single battery are equipped with the first temperature sensor, and battery modules are equipped with the second temperature
Sensor is spent,
The pressure sensor and third temperature sensor that battery chamber interior wall is equipped with；
Battery management system and the first temperature sensor, second temperature sensor, third temperature sensor and pressure sensing
Device communication connection.
In embodiments of the present invention, the power battery thermal runaway diffusion that early warning system is spread based on power battery thermal runaway is pre-
Alarm method includes the following steps：
First temperature sensor is used to detect the temperature of single battery, and the single battery temperature detected is sent to electricity
Pond manages system；
Second temperature sensor is used to detect the temperature of battery modules, and the battery modules temperature detected is sent to electricity
Pond manages system；
Third temperature sensor and pressure sensor are respectively used to temperature and pressure in detection battery case, and will detect
Battery case pressure and battery case temperature be sent to battery management system；
When the temperature of battery modules reaches second temperature threshold value where battery management system detects thermal runaway single battery,
Then it is determined as the first thermal diffusion；
Second temperature threshold value is that there are the battery modules temperature that single battery is in thermal runaway disperse state under experiment condition.
In embodiments of the present invention, after being determined as the first thermal diffusion, battery management system is based on battery case temperature and electricity
Pond case pressure judges whether that the second thermal diffusion of initiation, the second thermal diffusion specifically refer to：
When battery case temperature and battery case pressure respectively reach third temperature threshold and pressure threshold, then initiation is judged
Two thermal diffusions,
Third temperature threshold and pressure threshold are that there are the electricity that battery modules are in thermal runaway disperse state under experiment condition
Pond box temperature degree and battery case pressure.
In embodiments of the present invention, after judging to cause the second thermal diffusion, battery management system is based on diffusion temperature pressure
The battery catches fire time is estimated with the relation curve of time.
The relation curve of diffusion temperature pressure and time are that battery modules are in the battery tested under thermal runaway diffusion conditions
Box temperature degree, tank pressure and the relation curve of time.
In embodiments of the present invention, the single battery detection of heat out of control specifically refers to：
Whether the temperature of detection single battery reaches the first temperature threshold, if testing result is yes, judges single battery
In thermal runaway；
First temperature threshold reaches single battery temperature when thermal runaway critical condition for single battery under experiment condition.
Power battery thermal runaway diffusion early warning system provided in an embodiment of the present invention has the advantages that：
1. after detecting that thermal runaway occurs in single battery, the thermal runaway of single battery is judged based on battery modules temperature
Whether battery modules have been diffused into, whether if having spread to battery modules, monitoring the thermal runaway of corresponding battery modules can spread
To entire battery pack, accurately thermal diffusion can be judged, avoid unnecessary overreaction；
2. after judging that thermal runaway occurs in battery pack, the diffusion velocity early warning of thermal runaway is provided, is conducive to driver and passenger and does
Go out optimum response.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (5)
1. a kind of power battery thermal runaway spreads early warning system, which is characterized in that the system comprises：
Battery case, and the battery modules in battery case are connected in series or in parallel between battery modules, battery modules by series connection or
The single battery composition being connected in parallel, single battery are equipped with the first temperature sensor, and battery modules are passed equipped with second temperature
Sensor,
The pressure sensor and third temperature sensor that battery chamber interior wall is equipped with；
Battery management system and the first temperature sensor, second temperature sensor, third temperature sensor and pressure sensor are logical
News connection.
2. a kind of power battery thermal runaway spreading early warning system based on power battery thermal runaway described in claim 1 spreads early warning
Method, which is characterized in that described method includes following steps：
S1, the first temperature sensor are used to detect the temperature of single battery, and the single battery temperature detected is sent to electricity
Pond manages system；
S2, second temperature sensor are used to detect the temperature of battery modules, and the battery modules temperature detected is sent to electricity
Pond manages system；
S3, third temperature sensor and pressure sensor are respectively used to temperature and pressure in detection battery case, and will detect
Battery case pressure and battery case temperature be sent to battery management system；
When the temperature of battery modules reaches second temperature threshold value where S4, battery management system detect thermal runaway single battery,
Then it is determined as the first thermal diffusion；
Second temperature threshold value is that there are the battery modules temperature that single battery is in thermal runaway disperse state under experiment condition.
3. power battery thermal runaway as claimed in claim 2 spreads method for early warning, which is characterized in that be determined as the first thermal diffusion
Afterwards, battery management system is based on battery case temperature and battery case pressure judges whether to cause the second thermal diffusion, the second thermal diffusion tool
Body refers to：
When battery case temperature and battery case pressure respectively reach third temperature threshold and pressure threshold, then judge to cause the second heat
Diffusion,
Third temperature threshold and pressure threshold are that there are the battery cases that battery modules are in thermal runaway disperse state under experiment condition
Temperature and battery case pressure.
4. power battery thermal runaway as claimed in claim 2 spreads method for early warning, which is characterized in that judging to cause the second thermal expansion
After dissipating, battery management system estimates the battery catches fire time based on the relation curve of diffusion temperature pressure and time.
The relation curve of diffusion temperature pressure and time are that battery modules are in the battery box temperature tested under thermal runaway diffusion conditions
The relation curve of degree, tank pressure and time.
5. power battery thermal runaway as claimed in claim 2 spreads method for early warning, which is characterized in that the single battery of heat out of control is examined
Survey specifically refers to：
Whether the temperature of detection single battery reaches the first temperature threshold, if testing result is yes, judges that single battery is in
Thermal runaway；
First temperature threshold reaches single battery temperature when thermal runaway critical condition for single battery under experiment condition.
Priority Applications (1)
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| CN201810305432.1A CN108736079A (en) | 2018-04-08 | 2018-04-08 | A kind of power battery thermal runaway diffusion early warning system and method |
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| CN201810305432.1A CN108736079A (en) | 2018-04-08 | 2018-04-08 | A kind of power battery thermal runaway diffusion early warning system and method |
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Family
ID=63940672
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| CN201810305432.1A Pending CN108736079A (en) | 2018-04-08 | 2018-04-08 | A kind of power battery thermal runaway diffusion early warning system and method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2697185C1 (en) * | 2019-02-20 | 2019-08-13 | Владимир Николаевич Горюнов | Method for automatic monitoring and equalization of charging degree of parallel-serial connection of accumulators of unit |
| CN111114328A (en) * | 2020-02-27 | 2020-05-08 | 湖北亿纬动力有限公司 | Thermal runaway early warning method, device and system for power storage battery of electric automobile |
| CN111736075A (en) * | 2020-07-10 | 2020-10-02 | 中国民用航空飞行学院 | Lithium ion battery thermal safety monitoring method under dynamic pressure and variable temperature conditions |
| CN111913120A (en) * | 2020-07-16 | 2020-11-10 | 中国汽车技术研究中心有限公司 | Method and device for testing influence of parallel battery pack electric connection on thermal diffusion |
| CN112180262A (en) * | 2020-09-26 | 2021-01-05 | 上海普法芬电子科技有限公司 | Method for testing thermal runaway of automobile battery under extreme condition |
| CN112345941A (en) * | 2020-11-05 | 2021-02-09 | 惠州市蓝微新源技术有限公司 | Background thermal runaway early warning method based on big data and variable quantity curve |
| CN112510278A (en) * | 2020-11-30 | 2021-03-16 | 同济大学 | Thermal runaway detection and processing method and system for vehicle-mounted lithium ion power battery pack |
| CN112604206A (en) * | 2020-12-04 | 2021-04-06 | 重庆金康动力新能源有限公司 | Fire extinguishing system and control method for battery pack |
| CN113711073A (en) * | 2020-03-17 | 2021-11-26 | 株式会社Lg新能源 | Apparatus and method for predicting abnormal condition of battery and battery management system providing the same |
| WO2021249269A1 (en) * | 2020-06-08 | 2021-12-16 | 中国第一汽车股份有限公司 | Early warning method and apparatus, device and storage medium |
| WO2022062322A1 (en) * | 2020-09-23 | 2022-03-31 | 广州汽车集团股份有限公司 | Method and system for preventing thermal runaway of battery |
| JP2022539800A (en) * | 2019-07-31 | 2022-09-13 | エルジー エナジー ソリューション リミテッド | Battery state prediction device and battery state prediction method |
| CN116338473A (en) * | 2023-05-30 | 2023-06-27 | 苏州精控能源科技有限公司 | Cylindrical lithium battery testing method, device, medium and equipment for thermal runaway diffusion |
| CN116780009A (en) * | 2023-08-25 | 2023-09-19 | 宁德时代新能源科技股份有限公司 | Battery and electricity utilization device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160018473A1 (en) * | 2014-07-18 | 2016-01-21 | Phoenix Broadband Technologies, Llc | Non-Intrusive Correlating Battery Monitoring System and Method |
| CN105904992A (en) * | 2016-06-07 | 2016-08-31 | 烟台创为新能源科技有限公司 | Electric vehicle battery monitoring and management system and monitoring method of batteries |
| CN106597299A (en) * | 2016-11-22 | 2017-04-26 | 南京能启能电子科技有限公司 | Lithium battery thermal runaway early warning and automatic control method |
| CN107851864A (en) * | 2015-08-14 | 2018-03-27 | 微宏动力系统（湖州）有限公司 | Battery pack |
-
2018
- 2018-04-08 CN CN201810305432.1A patent/CN108736079A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160018473A1 (en) * | 2014-07-18 | 2016-01-21 | Phoenix Broadband Technologies, Llc | Non-Intrusive Correlating Battery Monitoring System and Method |
| CN107851864A (en) * | 2015-08-14 | 2018-03-27 | 微宏动力系统（湖州）有限公司 | Battery pack |
| CN105904992A (en) * | 2016-06-07 | 2016-08-31 | 烟台创为新能源科技有限公司 | Electric vehicle battery monitoring and management system and monitoring method of batteries |
| CN106597299A (en) * | 2016-11-22 | 2017-04-26 | 南京能启能电子科技有限公司 | Lithium battery thermal runaway early warning and automatic control method |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2697185C1 (en) * | 2019-02-20 | 2019-08-13 | Владимир Николаевич Горюнов | Method for automatic monitoring and equalization of charging degree of parallel-serial connection of accumulators of unit |
| JP7389217B2 (en) | 2019-07-31 | 2023-11-29 | エルジー エナジー ソリューション リミテッド | Battery condition prediction device and battery condition prediction method |
| JP2022539800A (en) * | 2019-07-31 | 2022-09-13 | エルジー エナジー ソリューション リミテッド | Battery state prediction device and battery state prediction method |
| CN111114328A (en) * | 2020-02-27 | 2020-05-08 | 湖北亿纬动力有限公司 | Thermal runaway early warning method, device and system for power storage battery of electric automobile |
| CN113711073A (en) * | 2020-03-17 | 2021-11-26 | 株式会社Lg新能源 | Apparatus and method for predicting abnormal condition of battery and battery management system providing the same |
| WO2021249269A1 (en) * | 2020-06-08 | 2021-12-16 | 中国第一汽车股份有限公司 | Early warning method and apparatus, device and storage medium |
| CN111736075A (en) * | 2020-07-10 | 2020-10-02 | 中国民用航空飞行学院 | Lithium ion battery thermal safety monitoring method under dynamic pressure and variable temperature conditions |
| CN111913120A (en) * | 2020-07-16 | 2020-11-10 | 中国汽车技术研究中心有限公司 | Method and device for testing influence of parallel battery pack electric connection on thermal diffusion |
| WO2022062322A1 (en) * | 2020-09-23 | 2022-03-31 | 广州汽车集团股份有限公司 | Method and system for preventing thermal runaway of battery |
| CN112180262A (en) * | 2020-09-26 | 2021-01-05 | 上海普法芬电子科技有限公司 | Method for testing thermal runaway of automobile battery under extreme condition |
| CN112345941A (en) * | 2020-11-05 | 2021-02-09 | 惠州市蓝微新源技术有限公司 | Background thermal runaway early warning method based on big data and variable quantity curve |
| CN112510278A (en) * | 2020-11-30 | 2021-03-16 | 同济大学 | Thermal runaway detection and processing method and system for vehicle-mounted lithium ion power battery pack |
| CN112604206B (en) * | 2020-12-04 | 2022-04-26 | 重庆金康动力新能源有限公司 | Fire extinguishing system and control method for battery pack |
| CN112604206A (en) * | 2020-12-04 | 2021-04-06 | 重庆金康动力新能源有限公司 | Fire extinguishing system and control method for battery pack |
| CN116338473A (en) * | 2023-05-30 | 2023-06-27 | 苏州精控能源科技有限公司 | Cylindrical lithium battery testing method, device, medium and equipment for thermal runaway diffusion |
| CN116338473B (en) * | 2023-05-30 | 2023-08-08 | 苏州精控能源科技有限公司 | Cylindrical lithium battery testing method, device, medium and equipment for thermal runaway diffusion |
| CN116780009A (en) * | 2023-08-25 | 2023-09-19 | 宁德时代新能源科技股份有限公司 | Battery and electricity utilization device |
| CN116780009B (en) * | 2023-08-25 | 2024-04-12 | 宁德时代新能源科技股份有限公司 | Battery and electricity utilization device |
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