CN103560302A - Power battery module safety testing device and method - Google Patents
Power battery module safety testing device and method Download PDFInfo
- Publication number
- CN103560302A CN103560302A CN201310585768.5A CN201310585768A CN103560302A CN 103560302 A CN103560302 A CN 103560302A CN 201310585768 A CN201310585768 A CN 201310585768A CN 103560302 A CN103560302 A CN 103560302A
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- battery
- cell module
- electrokinetic cell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
Abstract
The invention relates to a power battery module safety testing device. The safety testing device comprises a power battery module, a heating device, a temperature sensor, a lead, a relay and a temperature detector. One battery cell in the middle of the power battery module is heated; the temperature sensor is used for detecting the temperature changes of battery cells including the heated battery cell as well as battery cells adjacent to the heated battery cell; the lead is connected with the two ends of the heating device respectively; the relay is used for controlling the opening and the closing of a test loop; the temperature detector is used for monitoring the temperature changes of the battery cells, which are detected by the temperature sensor during the testing process.
Description
Technical field
The invention belongs to electrokinetic cell field, specifically refer to a kind of electrokinetic cell module safe testing device and test method.
Background technology
Battery, as the key components and parts of electric automobile, is the fundamental driving force source of electric automobile.Battery, as a chemical system unit, is attended by the carrying out of chemical reaction in charge and discharge process, and has the generation of side reaction.Electric automobile power battery group is arranged according to certain connected mode combination in limited space by a large amount of battery cells, forms and has high-octane system.When in battery pack, a certain monomer occurs to lose efficacy, because the generation of chemical reaction may be gathered amount of heat transfer spreading and causes other battery cell generation thermal runaway reaction, further cause large-scale security incident, this phenomenon is more outstanding in closed structure battery pack.For guaranteeing the safe handling of battery of electric vehicle group in charge and discharge process, the testing research of carrying out is in this respect even more important.
At present, the security verification of electrokinetic cell module is mainly machinery, environment, electrical safety.Wherein Environmental security is verified as module heating, temperature shock test, there is no the module thermal runaway fail safe that the method validation battery cells such as thermal run away lost efficacy and cause.
Summary of the invention
The object of the invention is in analog electrical electrical automobile power battery pack the thermal runaway behavior that may cause when a certain battery cell occurs to lose efficacy, a kind of electrokinetic cell module safety test method is provided, the thermal run away fail safe of checking battery modules, for the security verification of electric automobile power battery provides correlation test method.
The present invention is achieved by the following technical solutions:
A module safe testing device, includes electrokinetic cell module, heater, temperature sensor, wire, relay, temperature monitor;
Described electrokinetic cell module is verification experimental verification object, and in the middle of battery modules, a battery cell is used for being heated;
Described heater is wound in electrokinetic cell module and is heated on battery cell, for heating battery monomer;
Described temperature sensor is for detection of battery cell variations in temperature, comprises and is heated battery cell and adjacent cell monomer around thereof;
Described wire, for the connection of test loop, is connected with heater two ends respectively;
The control that described relay opens and closes for test loop;
Described temperature monitor detects the variations in temperature of battery cell for monitoring test process temperature sensor.
Described heater heating battery monomer mode, includes and by battery modules, directly connects heater and power, or heat by external power source.
Described heater includes heater strip or heating film.
The mode that assembles of described electrokinetic cell module monomer is arranged according to battery pack structure demand, comprises full parallel connection, full series, parallel series combination mode.
The safe method for testing of module, includes:
Electrokinetic cell module is charged to full electricity;
After assembling electrokinetic cell module safe testing device, by heater strip heating battery monomer;
The variations in temperature of monitoring battery, occur to lose efficacy after reaction when being heated battery cell, cutoff circuit, observe its around adjacent cell monomer variations in temperature, whether there is further thermal runaway reaction;
After being heated battery cell and losing efficacy, if all the other battery cells occur without phenomenons such as catching fire, blasts, take the failure conditions that module checks battery cell apart; If cause the inefficacy reaction of all the other battery cells, the extent of reaction of observing battery cell.
The invention has the beneficial effects as follows:
By implementing technical solution of the present invention, can effectively verify the thermal run away fail safe of electrokinetic cell module, analyze the security reliability of power battery pack design, ensure the safe handling of electrokinetic cell system, and guide the design of battery modules.
Accompanying drawing explanation
Fig. 1 is electrokinetic cell modular structure schematic diagram of the present invention;
Fig. 2 is that the present invention is heated battery cell schematic diagram;
Fig. 3 is experimental rig schematic diagram of the present invention.
Embodiment
Describe by the following examples technical scheme of the present invention in detail, should be understood that, following embodiment is only exemplary, only can be used for explaining and technical scheme of the present invention being described, and can not to be interpreted as is the restriction to technical solution of the present invention.
As shown in Figure 1 to Figure 3, a kind of electrokinetic cell module safe testing device, includes electrokinetic cell module, heater, temperature sensor, wire 2, relay 4, temperature monitor;
Described electrokinetic cell module is verification experimental verification object, and in the middle of battery modules, a battery cell is used for being heated;
Described heater is wound in electrokinetic cell module and is heated on battery cell, for heating battery monomer.
Fig. 1 is electrokinetic cell modular structure schematic diagram of the present invention, illustrates in general 1# battery for being heated battery cell in this figure, is positioned in the middle of battery modules, and heater strip is wound around by annular and is fixed on 1# battery cell by insulation high-temperature-resistant adhesive tape.2#, 3#, 4#, 5#, 6#, 7#, 8#, 9# battery cell are positioned at around 1# battery cell respectively successively.
Described temperature sensor is for detection of battery cell variations in temperature, comprises and is heated battery cell and adjacent cell monomer around thereof; On 9 battery cell housings in Fig. 1, be fixed with respectively temperature sensor, for the temperature detection monitoring of process of the test, warming is fixed by high temperature resistant adhesive tape.
Described wire, for the connection of test loop, is connected with heater two ends respectively; The control that described relay opens and closes for test loop, Fig. 3 is experimental rig schematic diagram, electrokinetic cell module is pressed after Fig. 1 and Fig. 2 assembling, heater strip one end that 1# is heated on battery cell is connected with module negative lug by wire, and the other end is drawn via relay and is connected with module positive pole ear by wire.Temperature sensor is connected to the variations in temperature in temperature monitor monitoring test process.
Described temperature monitor detects the variations in temperature of battery cell for monitoring test process temperature sensor.
During test, closing relay is connected loop, and module battery heats heater strip, detects the variations in temperature of 9 battery cells in heating process by temperature monitor.When 1# battery cell temperature rises to this battery cell generation inefficacy, disconnect relay, stop heating, the inefficacy of observation 1# battery cell is reacted and around whether variations in temperature, the battery of all the other 8 battery cells inefficacy reaction etc. occurs.
In process of the test, after 1# is heated battery cell and lost efficacy, if all the other battery cells occur without phenomenons such as catching fire, blasts, take the failure conditions that module checks battery cell apart; If cause the inefficacy reaction of all the other battery cells, observe the extent of reaction of battery cell, as whether battery protecting apparatus is opened etc., and with fire extinguishings such as fire-fighting sands.
According to the thermal run away fail safe of result of the test assessment electrokinetic cell module, if occur without explosion safety accidents such as on fire, burnings, or after being heated battery core and losing efficacy, do not cause around battery core and occur to lose efficacy and react, this structural module meets safe design requirement; If there is the perils such as on fire, burning, blast, there is potential safety hazard in this structural module, may cause power battery pack that more violent security incident further occurs, the improvement of need being correlated with of battery modules structure.
In technical scheme of the present invention, the mode that assembles of described electrokinetic cell module monomer is arranged according to battery pack structure demand, comprises full parallel connection, full series, parallel series combination mode.
In technical scheme of the present invention, battery cell is not limited only to rectangular cell monomer, also can be used for the testing authentication of cylindrical battery monomer.
In other embodiments of the invention, described heater comprises heating film.
Technical scheme of the present invention is mainly, by heater strip is wound on battery cell and is heated, the temperature causing during the inefficacies such as simulated battery monomer generation internal short-circuit rises, heat diffusion, detect battery modules whether the inefficacy that thermal runaway reaction causes all the other battery cells can occur in the case, cause even more serious security incident, effectively verify the security performance of battery modules.
Technical scheme of the present invention also can be used for the internal short-circuit failure performance of simplation verification battery cell.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (5)
1. an electrokinetic cell module safe testing device, is characterized in that: include electrokinetic cell module, heater, temperature sensor, wire, relay, temperature monitor;
Described electrokinetic cell module is verification experimental verification object, and in the middle of battery modules, a battery cell is used for being heated;
Described heater is wound in electrokinetic cell module and is heated on battery cell, for heating battery monomer;
Described temperature sensor is for detection of battery cell variations in temperature, comprises and is heated battery cell and adjacent cell monomer around thereof;
Described wire, for the connection of test loop, is connected with heater two ends respectively;
The control that described relay opens and closes for test loop;
Described temperature monitor detects the variations in temperature of battery cell for monitoring test process temperature sensor.
2. electrokinetic cell module safe testing device according to claim 1, is characterized in that: described heater heating battery monomer mode, includes and by battery modules, directly connect heater and power, or heat by external power source.
3. electrokinetic cell module safe testing device according to claim 1, is characterized in that: described heater includes heater strip or heating film.
4. electrokinetic cell module safe testing device according to claim 1, is characterized in that: the mode that assembles of described electrokinetic cell module monomer is arranged according to battery pack structure demand, comprises full parallel connection, full series, parallel series combination mode.
5. the safe method for testing of electrokinetic cell module, is characterized in that: include:
Electrokinetic cell module is charged to full electricity;
After assembling electrokinetic cell module safe testing device, by heater strip heating battery monomer;
The variations in temperature of monitoring battery, occur to lose efficacy after reaction when being heated battery cell, cutoff circuit, observe its around adjacent cell monomer variations in temperature, whether there is further thermal runaway reaction;
After being heated battery cell and losing efficacy, if all the other battery cells occur without phenomenons such as catching fire, blasts, take the failure conditions that module checks battery cell apart; If cause the inefficacy reaction of all the other battery cells, the extent of reaction of observing battery cell.
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| CN201310585768.5A CN103560302B (en) | 2013-11-19 | 2013-11-19 | A kind of electrokinetic cell module safe testing device and test method |
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| CN201310585768.5A CN103560302B (en) | 2013-11-19 | 2013-11-19 | A kind of electrokinetic cell module safe testing device and test method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106970111A (en) * | 2017-04-10 | 2017-07-21 | 清华大学 | The method of testing and device of battery bag security |
| CN108180797A (en) * | 2017-12-11 | 2018-06-19 | 西安航天动力测控技术研究所 | A kind of Missile Hot-battery working condition simulator |
| CN109411841A (en) * | 2018-11-30 | 2019-03-01 | 清华大学 | Lithium ion battery detection device and lithium-ion battery systems |
| CN109655748A (en) * | 2018-12-29 | 2019-04-19 | 清华大学 | The determination method of battery thermal runaway temperature and the evaluation method of battery thermal runaway performance |
| CN109888412A (en) * | 2017-12-06 | 2019-06-14 | 蔚来汽车有限公司 | Battery system thermal runaway simulator and analogy method |
| CN109959579A (en) * | 2019-03-27 | 2019-07-02 | 中国北方车辆研究所 | The measurement of lithium ion battery thermal runaway process gas production and gas collector |
| CN110192104A (en) * | 2017-01-19 | 2019-08-30 | 加拿大国家研究委员会 | Device and method for starting the thermal runaway in battery |
| CN112234276A (en) * | 2020-03-27 | 2021-01-15 | 蜂巢能源科技有限公司 | Battery cell thermal runaway simulation circuit and method |
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| CN101000951A (en) * | 2006-01-09 | 2007-07-18 | 比亚迪股份有限公司 | Battery diaphragm and its preparation method and lithium ion secondary battery containing the diaphragm |
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Cited By (14)
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|---|---|---|---|---|
| US11387507B2 (en) | 2017-01-19 | 2022-07-12 | National Research Council Of Canada | Apparatus and method for initiating thermal runaway in a battery |
| CN110192104B (en) * | 2017-01-19 | 2024-03-29 | 加拿大国家研究委员会 | Apparatus and method for starting thermal runaway in a battery |
| CN110192104A (en) * | 2017-01-19 | 2019-08-30 | 加拿大国家研究委员会 | Device and method for starting the thermal runaway in battery |
| JP2020510954A (en) * | 2017-01-19 | 2020-04-09 | ナショナル・リサーチ・カウンシル・オブ・カナダＮａｔｉｏｎａｌ Ｒｅｓｅａｒｃｈ Ｃｏｕｎｃｉｌ Ｏｆ Ｃａｎａｄａ | Apparatus and method for causing thermal runaway in a battery |
| JP7290569B2 (en) | 2017-01-19 | 2023-06-13 | ナショナル・リサーチ・カウンシル・オブ・カナダ | Apparatus and method for inducing thermal runaway in batteries |
| CN106970111A (en) * | 2017-04-10 | 2017-07-21 | 清华大学 | The method of testing and device of battery bag security |
| CN109888412A (en) * | 2017-12-06 | 2019-06-14 | 蔚来汽车有限公司 | Battery system thermal runaway simulator and analogy method |
| CN108180797A (en) * | 2017-12-11 | 2018-06-19 | 西安航天动力测控技术研究所 | A kind of Missile Hot-battery working condition simulator |
| CN108180797B (en) * | 2017-12-11 | 2020-02-07 | 西安航天动力测控技术研究所 | Missile thermal battery operating condition analogue means |
| CN109411841A (en) * | 2018-11-30 | 2019-03-01 | 清华大学 | Lithium ion battery detection device and lithium-ion battery systems |
| CN109655748A (en) * | 2018-12-29 | 2019-04-19 | 清华大学 | The determination method of battery thermal runaway temperature and the evaluation method of battery thermal runaway performance |
| CN109959579A (en) * | 2019-03-27 | 2019-07-02 | 中国北方车辆研究所 | The measurement of lithium ion battery thermal runaway process gas production and gas collector |
| CN112234276B (en) * | 2020-03-27 | 2022-01-28 | 蜂巢能源科技有限公司 | Battery cell thermal runaway simulation circuit and method |
| CN112234276A (en) * | 2020-03-27 | 2021-01-15 | 蜂巢能源科技有限公司 | Battery cell thermal runaway simulation circuit and method |
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| CN103560302B (en) | 2016-01-13 |
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Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230022 No. 176 Dongliu Road, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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