CN209486268U - A kind of lithium battery monomer thermal runaway test fixture - Google Patents
A kind of lithium battery monomer thermal runaway test fixture Download PDFInfo
- Publication number
- CN209486268U CN209486268U CN201822246855.9U CN201822246855U CN209486268U CN 209486268 U CN209486268 U CN 209486268U CN 201822246855 U CN201822246855 U CN 201822246855U CN 209486268 U CN209486268 U CN 209486268U
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- lithium battery
- battery monomer
- thermal runaway
- detected
- sealed cabinet
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Abstract
The utility model discloses a kind of lithium battery monomer thermal runaway test fixture, including sealed cabinet, it is mounted in sealed cabinet horizontal equipped with pedestal, the upper surface fixing plate and moving plate of pedestal；Fixing plate and moving plate installs heating sheet close to detected lithium battery monomer side；Thermocouple temperature sensor is installed in the heating surface for being detected lithium battery monomer；It is detected lithium battery monomer and is electrically connected charging/discharging apparatus；The pressure sensor for testing closed case pressure after lithium battery monomer thermal runaway is also equipped on the sealed cabinet；Thermocouple temperature sensor and pressure sensor are electrically connected digital display device.This tooling can be simulated and limit in the space of actual battery module internal, limit the bulging space of battery cell according to the structure of actual battery mould group；Test the boundary condition that thermal runaway occurs for battery cell；Data are more accurate, and confidence level is higher.
Description
Technical field
The utility model belong to lithium-ion-power cell monomer thermal runaway testing field more particularly to a kind of lithium battery list
Body heat test fixture out of control.
Background technique
It is well known that thermal runaway occurs for lithium battery, serious safety accident will be caused, and meaning is solicited according to new national standard
See original text, say the thermal runaway test of newly-increased battery module, therefore is badly in need of carrying out lithium battery the test of thermal runaway condition and heat transfer.
Lithium battery thermal runaway mainly has heating, needle thorn and three kinds of Solicitation mechanisms of internal short-circuit.Wherein first two is relatively easy to control,
The application is test lithium battery thermal runaway for the initiation method of heating.
Existing national standard thermal runaway test carries out heating thermal runaway test only for battery cell and module, is not
According to actual use, composition battery modules, real structure test.So the battery cell or Soft Roll of some steel shells
Battery cell will cause the thermal runaway condition inaccuracy of test, cannot reflect that true thermal runaway is critical since there are bulging spaces
The data such as condition and temperature rise rate.Reference can not be provided to whole cell system design.
, will be more fierce then there is a situation where thermal runaways if carrying out thermal runaway test to entire actual battery mould group,
The safety of experimenter and equipment is not utilized, and experiment risk is higher.
For this purpose, the utility model provides a kind of tooling for the test of battery cell thermal runaway, it can be according to actual battery
The structure of mould group is simulated and is limited in the space of actual battery module internal, limits the bulging space of battery cell；Test battery list
The boundary condition of body generation thermal runaway；Data are more accurate, the higher lithium battery monomer thermal runaway test fixture of confidence level.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of work for the test of battery cell thermal runaway
Dress.
The utility model is realized in this way a kind of lithium battery monomer thermal runaway test fixture, it is characterised in that: including with
In placing the sealed cabinet for being detected lithium battery monomer, the level in sealed cabinet that is mounted on is equipped with pedestal, the pedestal
Upper surface fixing plate and moving plate is detected lithium battery monomer and is placed between fixing plate and moving plate；In the outside of movable plate
Face is connected with push rod, and the push rod outer end is connected with lead screw, and the lead screw is installed on feed screw nut, and the feed screw nut is fixed
Installation is on the supporting plate；
The fixing plate and moving plate installs heating sheet close to detected lithium battery monomer side；It is detected lithium battery monomer just
Cathode connects the charging/discharging apparatus for detecting detected single lithium battery voltage；In the heated surface side for being detected lithium battery monomer
Face is equipped with thermocouple temperature sensor；Sealed housing interior volume is equipped with for recording surrounding air and spraying the temperature of gas
The temperature sensor of degree；After being also equipped on the sealed cabinet for monitoring lithium battery monomer thermal runaway, with temperature
Rising and lithium battery release gas, the pressure sensor of pressure value variation in closed case；The thermocouple temperature sensor,
Temperature sensor, pressure sensor connect digital display device by harness.
The utility model is directed to the tooling of battery cell thermal runaway test, can be according to the structure of actual battery mould group, mould
Intend limiting in the space of actual battery module internal, limits the bulging space of battery cell；It tests battery cell and thermal runaway occurs
Boundary condition；Data are more accurate, and confidence level is higher.
In above structure, it is preferred that be also equipped on the sealed cabinet for recording test procedural test process
High-definition camera；The process that battery cell thermal runaway is tested in sealed cabinet can intuitively be observed.
In above structure, it is preferred that the heating sheet uses PTC heating sheet；So that the heating to battery core is more uniform.Electricity
The critical condition of pond thermal runaway is more accurate.
Visual windows are additionally provided on the sealed cabinet.
In conclusion the utility model has the advantages that: the utility model loses for battery cell heat
The tooling of test is controlled, can simulate and be limited in the space of actual battery module internal according to the structure of actual battery mould group, limitation
The bulging space of battery cell；Test the boundary condition that thermal runaway occurs for battery cell；Data are more accurate, and confidence level is higher.
In addition, the utility model is in such a way that mobile and fixed plate combines, suitable for different battery cores or different block structures；
Improve the Reusability of tooling.The utility model uses the heating method using PTC heating plate, so that the heating to battery core
It is more uniform.The critical condition of battery thermal runaway is more accurate.The utility model is each in experiment using can comprehensively record
The temperature of point, the variation of gas pressure and cell voltage.And then show that the various critical conditions of thermal runaway occur for battery, cross number of passes
According to and thermal diffusion the important parameters such as time, provide important tests data to the protection of integral battery system thermal runaway.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
In figure, 1, sealed cabinet；1-2, cabinet viewing window mouth；2, pedestal；3, fixed plate；4, movable plate；5, lithium
Battery cell；6, sliding rail；7, push rod；8, lead screw；9, feed screw nut；10, support plate；11, heating sheet；12, electric thermo-couple temperature passes
Sensor；13, charging/discharging apparatus；14, pressure sensor；15, digital display device；16, temperature sensor.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain that this is practical
It is novel, it is not used to limit the utility model.
Referring to Fig. 1, a kind of lithium battery monomer thermal runaway test fixture, including for placing detected lithium battery monomer
Sealed cabinet 1, be mounted in sealed cabinet it is horizontal be equipped with pedestal 2, the upper surface fixed plate 3 and movable plate 4 of the pedestal,
Lithium battery monomer 5 is detected between fixing plate and moving plate；The upper surface level of the pedestal is equipped with sliding rail 6, the shifting
Movable plate is slidably mounted on horizontal slide rail, is connected with push rod 7 in the lateral surface of movable plate, and the push rod outer end is connected with lead screw 8,
The lead screw is installed on feed screw nut 9, and the feed screw nut is fixedly mounted in support plate 10；It can be real after rotating threaded shaft
Existing movable plate moves forward and backward, and then the adjustment of the gap between heating plate and detected lithium battery monomer 5 may be implemented；It can be by
The defective space of battery is limited according to true applying working condition or applies certain pressure.
The fixing plate and moving plate installs heating sheet 11 close to detected lithium battery monomer side；It is detected lithium battery monomer
Positive and negative anodes connect the charging/discharging apparatus 13 for detecting detected single lithium battery voltage；It is being detected the heated of lithium battery monomer
Side is equipped with thermocouple temperature sensor 12；Sealed housing interior volume is equipped with for recording surrounding air and spraying gas
The temperature sensor 16 of the temperature of body；After being also equipped on the sealed cabinet for monitoring lithium battery monomer thermal runaway,
As the rising of temperature and lithium battery release gas, the pressure sensor 14 of pressure value variation in closed case；The thermocouple
Temperature sensor, temperature sensor, pressure sensor connect digital display device 15 by harness；Above-mentioned electric thermo-couple temperature sensing
Device, temperature sensor, pressure sensor belong to known products, and model is many, without particular examples；Digital display device can be direct
The data of thermocouple temperature sensor, temperature sensor, pressure sensor detection are shown, collect digital display from data
Working principle belongs to prior art.
This tooling can be simulated inside battery modules according to the space of the structure regulating cell monomer of actual battery mould group
True space limits the bulging of battery cell, because applause space directly affects the performance of battery thermal runaway.Using this work
It fills to test the boundary condition that thermal runaway occurs for battery, the gas flow of ejection, the data such as temperature are more accurate, and confidence level is higher.
This tooling test method:
1, battery core to be measured is put into tooling, according to the structural condition adjustment fixing plate 4 and movable plate 4 of actual battery mould group
Distance makes the bulging condition of battery cell meet truth
2, startup power supply starts battery cell heating；
3, the voltage of the battery in record experiment, electric current, temperature.
4, when being heated to battery and start thermal runaway, stop heating, record temperature and each surface of battery core of heating sheet
Temperature, temperature and thermal runaway that thermal runaway occurs are transmitted to the temperature in the tooling of side later, exactly pass in the battery core of side
Temperature, there are also the temperature etc. near pressure sensor.
5, using pressure sensor, seal box pressure change is recorded, it is estimated that battery core thermal runaway releases how many body altogether
Long-pending gas.
The utility model is directed to the tooling of battery cell thermal runaway test, can be according to the structure of actual battery mould group, mould
Intend limiting in the space of actual battery module internal, limits the bulging space of battery cell；It tests battery cell and thermal runaway occurs
Boundary condition；Data are more accurate, and confidence level is higher.
In above structure, it is preferred that be also equipped on the sealed cabinet for recording test procedural test process
High-definition camera.The process that battery cell thermal runaway is tested in sealed cabinet can intuitively be observed.
In above structure, it is preferred that the heating sheet uses PTC heating sheet.So that the heating to battery core is more uniform.Electricity
The critical condition of pond thermal runaway is more accurate.
Visual windows are additionally provided on the sealed cabinet.
In conclusion the utility model has the advantages that: the utility model loses for battery cell heat
The tooling of test is controlled, can simulate and be limited in the space of actual battery module internal according to the structure of actual battery mould group, limitation
The bulging space of battery cell；Test the boundary condition that thermal runaway occurs for battery cell；Data are more accurate, and confidence level is higher.
In addition, the utility model is in such a way that mobile and fixed plate combines, suitable for different battery cores or different block structures；
Improve the Reusability of tooling.The utility model uses the heating method of PTC heating plate, so that more to the heating of battery core
Uniformly.The critical condition of battery thermal runaway is more accurate.The utility model, which uses, can comprehensively record each point in experiment
The variation of temperature, gas pressure and cell voltage.And then obtain the various critical conditions of battery generation thermal runaway, process data,
With the important parameters such as time of thermal diffusion, important tests data are provided to the protection of integral battery system thermal runaway.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (4)
1. a kind of lithium battery monomer thermal runaway test fixture, it is characterised in that: including for placing detected lithium battery monomer
Sealed cabinet, the level in sealed cabinet that is mounted on are equipped with pedestal, and the upper surface fixing plate and moving plate of the pedestal is detected
Lithium battery monomer is surveyed to be placed between fixing plate and moving plate；Push rod, the push rod outer end are connected in the lateral surface of movable plate
It is connected with lead screw, the lead screw is installed on feed screw nut, and the feed screw nut is fixedly mounted on the supporting plate；
The fixing plate and moving plate installs heating sheet close to detected lithium battery monomer side；It is detected lithium battery monomer positive and negative anodes
Connect the charging/discharging apparatus for detecting detected single lithium battery voltage；In the heated side peace for being detected lithium battery monomer
Equipped with thermocouple temperature sensor；Sealed housing interior volume is equipped with the temperature for recording surrounding air and ejection gas
Temperature sensor；
After being also equipped on the sealed cabinet for monitoring lithium battery monomer thermal runaway, with the rising of temperature and lithium electricity
Pond releases gas, the pressure sensor of pressure value variation in closed case；
The thermocouple temperature sensor, temperature sensor, pressure sensor connect digital display device by harness.
2. lithium battery monomer thermal runaway test fixture according to claim 1, it is characterised in that: on the sealed cabinet
It is also equipped with the high-definition camera for recording test procedural test process.
3. lithium battery monomer thermal runaway test fixture according to claim 1, it is characterised in that: the heating sheet uses
PTC heating sheet.
4. lithium battery monomer thermal runaway test fixture according to claim 1, it is characterised in that: on the sealed cabinet
It is additionally provided with visual windows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822246855.9U CN209486268U (en) | 2018-12-29 | 2018-12-29 | A kind of lithium battery monomer thermal runaway test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822246855.9U CN209486268U (en) | 2018-12-29 | 2018-12-29 | A kind of lithium battery monomer thermal runaway test fixture |
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| Publication Number | Publication Date |
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| CN209486268U true CN209486268U (en) | 2019-10-11 |
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| CN201822246855.9U Active CN209486268U (en) | 2018-12-29 | 2018-12-29 | A kind of lithium battery monomer thermal runaway test fixture |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103404A (en) * | 2019-12-23 | 2020-05-05 | 国联汽车动力电池研究院有限责任公司 | Analysis device and method for thermal runaway tail gas of power battery |
| CN111208441A (en) * | 2020-01-17 | 2020-05-29 | 恒大新能源汽车科技(广东)有限公司 | Battery testing device |
| CN111474484A (en) * | 2020-04-13 | 2020-07-31 | 南京工业大学 | Method for testing safety working window of lithium ion battery in extruded state |
| CN111864283A (en) * | 2020-08-11 | 2020-10-30 | 东北大学 | Enclosed lithium ion battery pack heat abuse experimental device and method |
| CN112595982A (en) * | 2020-12-04 | 2021-04-02 | 东莞市巴能检测技术有限公司 | Battery adiabatic temperature rise detection device |
| CN112698228A (en) * | 2020-12-04 | 2021-04-23 | 国网湖南省电力有限公司 | Thermal runaway simulation device for external short circuit of power lithium battery |
| CN114019263A (en) * | 2020-07-16 | 2022-02-08 | 哲弗智能系统（上海）有限公司 | Battery thermal runaway experimental device |
| WO2023207362A1 (en) * | 2022-04-28 | 2023-11-02 | 华为技术有限公司 | Battery thermal runaway test system and test method thereof |
| CN117368772A (en) * | 2023-11-17 | 2024-01-09 | 东莞市力邦检测服务有限公司 | Integrated testing device for thermal runaway characteristics of energy storage battery |
| WO2024040596A1 (en) * | 2022-08-26 | 2024-02-29 | 宁德时代新能源科技股份有限公司 | Equivalent test method and test fixture for battery cell |
| CN117368772B (en) * | 2023-11-17 | 2024-05-10 | 东莞市力邦检测服务有限公司 | Integrated testing device for thermal runaway characteristics of energy storage battery |
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2018
- 2018-12-29 CN CN201822246855.9U patent/CN209486268U/en active Active
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103404A (en) * | 2019-12-23 | 2020-05-05 | 国联汽车动力电池研究院有限责任公司 | Analysis device and method for thermal runaway tail gas of power battery |
| CN111103404B (en) * | 2019-12-23 | 2023-12-05 | 国联汽车动力电池研究院有限责任公司 | Analysis device and method for thermal runaway tail gas of power battery |
| CN111208441B (en) * | 2020-01-17 | 2022-04-19 | 恒大恒驰新能源汽车科技(广东)有限公司 | Battery testing device |
| CN111208441A (en) * | 2020-01-17 | 2020-05-29 | 恒大新能源汽车科技(广东)有限公司 | Battery testing device |
| US11307260B2 (en) | 2020-04-13 | 2022-04-19 | Nanjing Tech University | Testing system for safe operating window of lithium-ion battery in squeezed state and testing method thereof |
| CN111474484A (en) * | 2020-04-13 | 2020-07-31 | 南京工业大学 | Method for testing safety working window of lithium ion battery in extruded state |
| CN111474484B (en) * | 2020-04-13 | 2020-11-10 | 南京工业大学 | Method for testing safety working window of lithium ion battery in extruded state |
| CN114019263A (en) * | 2020-07-16 | 2022-02-08 | 哲弗智能系统（上海）有限公司 | Battery thermal runaway experimental device |
| CN111864283A (en) * | 2020-08-11 | 2020-10-30 | 东北大学 | Enclosed lithium ion battery pack heat abuse experimental device and method |
| CN112595982A (en) * | 2020-12-04 | 2021-04-02 | 东莞市巴能检测技术有限公司 | Battery adiabatic temperature rise detection device |
| CN112698228A (en) * | 2020-12-04 | 2021-04-23 | 国网湖南省电力有限公司 | Thermal runaway simulation device for external short circuit of power lithium battery |
| CN112698228B (en) * | 2020-12-04 | 2022-12-06 | 国网湖南省电力有限公司 | Power lithium battery external short circuit thermal runaway simulation device |
| WO2023207362A1 (en) * | 2022-04-28 | 2023-11-02 | 华为技术有限公司 | Battery thermal runaway test system and test method thereof |
| WO2024040596A1 (en) * | 2022-08-26 | 2024-02-29 | 宁德时代新能源科技股份有限公司 | Equivalent test method and test fixture for battery cell |
| CN117368772A (en) * | 2023-11-17 | 2024-01-09 | 东莞市力邦检测服务有限公司 | Integrated testing device for thermal runaway characteristics of energy storage battery |
| CN117368772B (en) * | 2023-11-17 | 2024-05-10 | 东莞市力邦检测服务有限公司 | Integrated testing device for thermal runaway characteristics of energy storage battery |
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| GR01 | Patent grant | ||
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Effective date of registration: 20230303 Granted publication date: 20191011 |
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