CN107342443A - It is a kind of to be used to monitor internal temperature and the device of pressure change during large-scale lithium ion battery thermal runaway occurrence and development - Google Patents
It is a kind of to be used to monitor internal temperature and the device of pressure change during large-scale lithium ion battery thermal runaway occurrence and development Download PDFInfo
- Publication number
- CN107342443A CN107342443A CN201710645652.4A CN201710645652A CN107342443A CN 107342443 A CN107342443 A CN 107342443A CN 201710645652 A CN201710645652 A CN 201710645652A CN 107342443 A CN107342443 A CN 107342443A
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- China
- Prior art keywords
- thermocouple
- pressure
- pressure sensor
- lithium ion
- battery
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Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 22
- 238000011161 development Methods 0.000 title claims abstract description 13
- 239000007772 electrode material Substances 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- 238000013461 design Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000013480 data collection Methods 0.000 claims description 2
- 239000007943 implant Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 1
- 238000007405 data analysis Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000004146 energy storage Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001960 triggered effect Effects 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/627—Filling ports
- H01M50/636—Closing or sealing filling ports, e.g. using lids
-
- 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
It is used to monitor internal temperature and the device of pressure during large-scale lithium ion battery thermal runaway occurrence and development, including battery case, thermocouple, connection structural bodies and pressure sensor the invention discloses a kind of.The device includes nut (1), battery case cover plate (2), thermocouple fixing structure part (3), clamp nut lid (4), thermocouple (5), hollow copper ball (6), pressure sensor fixed structure piece (7), thread plug (8), electrode material (9), nut (10), pressure sensor (11).The test is designed mainly in the large-scale lithium ion battery such as power, energy storage.The temperature and pressure that thermocouple is mainly used in inside monitoring cell with hot environment pressure sensor changes, and contributes to during lithium ion battery safe design, monitors the temperature and pressure change of inside battery.
Description
Technical field
The present invention relates to the technical field of high security lithium ion battery research and development, and in particular to one kind is used to monitor large-scale lithium
Internal temperature and the device of pressure change during ion battery thermal runaway occurrence and development.
Background technology
With the increasingly raising that people's life requires, lithium ion battery needs faster discharge and recharge times in large-scale application
Rate and bigger capacity.And the increase of these factors can the security of strong influence battery in itself.Such as battery is in discharge and recharge
Substantial amounts of heat can be produced in cyclic process, in addition limited space and the effect of time integral, easily trigger the temperature of cell
Rise, after more than normal battery operation temperature range, cell internal material can decompose, and improve the pressure of inside battery
Power.If temperature can not control in time, the thermal runaway of battery can be triggered.And this kind of security risk is for loading a large amount of lithium-ion electrics
The electric automobile of pool unit, energy-accumulating power station etc. are unacceptable.
How the scientist of various countries improves the security of battery in research at present.The present invention can be from temperature and pressure two
Individual aspect solves the technical problem of scientist's lithium ion battery safety performance deeply concerned, obtains including discharge and recharge, high temperature, overcharged
Put and the internal temperature of battery and pressure change under experiment condition such as acupuncture extruding.
The content of the invention
The purpose of the present invention is to research and develop security performance lithium ion battery, monitoring large-scale lithium ion battery thermal runaway and send out
Internal temperature and pressure change during exhibition.Filled especially by thermocouple and pressure sensor real-time Transmission respective battery material
The temperature and pressure signal of inside battery under the working conditions such as discharge process, super-charge super-discharge, high-temperature heat box.Set so as to optimize battery
Meter scheme.
To achieve the above object, the technical solution adopted by the present invention is：One kind is used to monitor large-scale lithium ion battery heat mistake
Internal temperature and the device of pressure change during control occurrence and development, including nut, battery case cover plate, thermocouple fixing structure
Part, clamp nut lid, thermocouple, hollow copper ball, pressure sensor fixed structure piece, thread plug, electrode material, nut and pressure
Sensor, before battery case cover plate and electrode material welding, nut, battery case cover plate, thermocouple fixing structure part, fastening spiral shell
Mother's lid and thermocouple will be fixed in advance by the screw thread on structural member, between clamp nut lid and thermocouple fixing structure part
Hollow copper ball need be twisted deforming, with play sealing thermocouple and thermocouple fixing structure part and clamp nut lid between stitch
The effect of gap, thermocouple fixing structure part and clamp nut cover and use concave design, nut and pressure contacting design with copper ball
Force snesor fixed structure piece need to be with battery case cover plate in advance by being screwed in pressure sensor fixed structure piece, and in electricity
When fluid injection, forming and capacity dividing are done in pond, pressure sensor mouth is blocked with thread plug.
Further,, need to be in the relatively low ring of water, oxygen content when measuring cell internal pressure after Battery formation partial volume
Thread plug is taken out in border and screws in pressure sensor in pressure sensor fixed structure piece, pressure sensor needs to be resistant to
Used in 400 DEG C or so hot environments.
Further, for can measure battery it is out of control when internal temperature, thermocouple need to use the K-types of 1mm diameter armourings, S
Type, R types or Type B thermocouple, if only measuring the conditions such as general charge and discharge cycles, general thermocouple even temperature can be exchanged with
Spend sensor, thermocouple need to before battery case cover plate with the battery case welding equipped with electrode material in implant electrode material every
Between film, prevent internal short-circuit.
Further, internal temperature and pressure when the device is except that can measure battery thermal runaway, can also measure other
Temperature and pressure under such as charge and discharge cycles normal operating conditions, but corresponding thermocouple and pressure sensor can be according to need
Will and use corresponding to model.
Further, thermocouple and pressure sensor need to pass through data collection and transmission, the number of Treatment Analysis collection
According to the experimental data required for finally giving.
The equipment for detecting pressure inside cylindrical lithium ion battery of the present invention has following excellent effect compared with prior art
Fruit.
(1) prior art only has the device that external part research institution has carried out this respect at present, and just in small-sized
The measurement of the internal temperature of battery, not detection pressure.The present invention is loaded with temperature sensor and pressure sensor, energy simultaneously
The temperature and pressure of inside battery is measured simultaneously, and the present apparatus is simple in construction, it is workable, can be with the side of production line operation
Formula processes such special battery, the experimental cell required for batch making, substantially increases experiment speed, contributes to cell safety
The development of performance study work.
(2) test design is mainly in the large-scale lithium ion battery such as power, energy storage.Thermocouple and hot environment pressure
Sensor is mainly used in the temperature and pressure change inside monitoring cell, contributes to during lithium ion battery safe design,
Monitor the temperature and pressure change of inside battery.Because battery needs fluid injection, chemical conversion in the fabrication process, in thermocouple and pressure
Increase structural member between sensor and battery cover respectively, wherein there is vice to block interim dress as fluid injection above pressure texture part
Put, prevent that electrolyte is spilt in manufacturing process.The present invention provides critical data test for battery manufacturer in safe design battery
Scheme, cell safety is contributed to study.
Brief description of the drawings
Fig. 1 is that the present invention monitors internal temperature and pressure change during large-scale lithium ion battery thermal runaway occurrence and development
Schematic device, wherein：1 is nut, and 2 be battery case cover plate, and 3 be thermocouple fixing structure part, and 4 be clamp nut lid, and 5 be heat
Galvanic couple, 6 be hollow copper ball, and 7 be pressure sensor fixed structure piece, and 8 be thread plug, and 9 be electrode material, and 10 be nut, and 11 are
Pressure sensor.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is that the present invention monitors internal temperature and pressure change during large-scale lithium ion battery thermal runaway occurrence and development
Schematic device.
The present invention is broadly divided into two parts, first part, battery case cover plate 2 is sandwiched in into nut 1 and clamp nut lid 4
Between, it is threadedly coupled by thermocouple fixing structure part about 3, and cover plate is clamped.To prevent inside battery electrolyte from heat
Gap between galvanic couple 5 and thermocouple fixing structure part 3 and clamp nut lid 4 is overflowed, and needs to consolidate thermocouple in installation process
Determine the crimp of hollow copper ball 6 between structural member 3 and clamp nut lid 4, block gap.The second part, pressure sensor
Fixed structure piece 7 and nut 10 are also by threaded connection, and the battery case cover plate 2 by between clamps.Due to cell fabrication processes
Need by operating processes such as a series of welding, fluid injection, chemical conversion, partial volumes, made for convenience of battery, during which pass through thread plug 8
Pressure sensor fixed structure piece 7 is sealed.After battery is successful, when actually measuring, in an inert atmosphere,
Thread plug 8 can be changed into pressure sensor 11.
The present invention considers high-temperature operation feature, and one side package unit uses metal material, prevents other such as rubber
Class material melts in high temperature, ensures the seal of battery, improves the Stability and veracity of data snooping；The opposing party
Face, for the device in the case where detecting hot conditions, thermocouple 5 need to use K-type, S types, R types or the Type B thermocouple of 1mm diameters, and press
Force snesor is then using 400 DEG C even sensor of the above is resistant to, if measurement cryogenic conditions, thermocouple can then be replaced by T
Other models such as type, J-type, and pressure sensor can then use in general sensor.
Claims (5)
1. a kind of be used to monitor internal temperature and the device of pressure change during large-scale lithium ion battery thermal runaway occurrence and development,
It is characterized in that：Including nut (1), battery case cover plate (2), thermocouple fixing structure part (3), clamp nut lid (4), thermocouple
(5), hollow copper ball (6), pressure sensor fixed structure piece (7), thread plug (8), electrode material (9), nut (10) and pressure
Sensor (11), before battery case cover plate (2) and electrode material (9) welding, nut (1), battery case cover plate (2), thermocouple
Fixed structure piece (3), clamp nut lid (4) and thermocouple (5) will be fixed in advance by the screw thread on structural member, embedded in fastening spiral shell
Hollow copper ball (6) between mother's lid (4) and thermocouple fixing structure part (3) needs to be twisted deforming, to play sealing thermocouple
(5) between thermocouple fixing structure part (3) and clamp nut lid (4) gap effect, thermocouple fixing structure part (3) with it is tight
Gu nut cap (4) use concave design contacting design with copper ball, nut (10) and pressure sensor fixed structure piece (7) need
With battery case cover plate (2) in advance by being screwed in pressure sensor fixed structure piece (7), and fluid injection, chemical conversion are done in battery
During partial volume, pressure sensor mouth is blocked with thread plug (8).
It is 2. according to claim 1 a kind of warm for inside during monitoring large-scale lithium ion battery thermal runaway occurrence and development
Degree and the device of pressure change, it is characterised in that：, need to be in water, oxygen when measuring cell internal pressure after Battery formation partial volume
Thread plug (8) is taken out and screwed in pressure sensor in pressure sensor fixed structure piece (7), pressure in the relatively low environment of content
Force snesor needs to be resistant to use in 400 DEG C or so hot environments.
It is 3. according to claim 1 a kind of warm for inside during monitoring large-scale lithium ion battery thermal runaway occurrence and development
Degree and the device of pressure change, it is characterised in that：For can measure battery it is out of control when internal temperature, thermocouple (5) need to use 1mm
K-type, S types, R types or the Type B thermocouple of diameter armouring, if only measuring the conditions such as general charge and discharge cycles, it can be exchanged with general
The thermocouple of change even temperature sensor, thermocouple (5) need to be in battery case cover plates (2) and the battery case equipped with electrode material (9)
Between barrier film before welding in implant electrode material (9), prevent internal short-circuit.
It is 4. according to claim 1 a kind of warm for inside during monitoring large-scale lithium ion battery thermal runaway occurrence and development
Degree and the device of pressure change, it is characterised in that：Internal temperature and pressure when the device is except that can measure battery thermal runaway, also
The temperature and pressure under other such as charge and discharge cycles normal operating conditions, but corresponding thermocouple and pressure sensing can be measured
Device can as needed and use corresponding to model.
It is 5. according to claim 1 a kind of warm for inside during monitoring large-scale lithium ion battery thermal runaway occurrence and development
Degree and the device of pressure change, it is characterised in that：Thermocouple (5) and pressure sensor (11) need to pass through data collection and analysis system
System, the data of Treatment Analysis collection, finally gives required experimental data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710645652.4A CN107342443A (en) | 2017-08-01 | 2017-08-01 | It is a kind of to be used to monitor internal temperature and the device of pressure change during large-scale lithium ion battery thermal runaway occurrence and development |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710645652.4A CN107342443A (en) | 2017-08-01 | 2017-08-01 | It is a kind of to be used to monitor internal temperature and the device of pressure change during large-scale lithium ion battery thermal runaway occurrence and development |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107342443A true CN107342443A (en) | 2017-11-10 |
Family
ID=60217312
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|---|---|---|---|
| CN201710645652.4A Pending CN107342443A (en) | 2017-08-01 | 2017-08-01 | It is a kind of to be used to monitor internal temperature and the device of pressure change during large-scale lithium ion battery thermal runaway occurrence and development |
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| CN (1) | CN107342443A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946682A (en) * | 2017-12-15 | 2018-04-20 | 浙江隆劲电池科技有限公司 | A kind of lithium battery of detectable internal temperature and pressure |
| CN108226693A (en) * | 2017-12-18 | 2018-06-29 | 清华大学 | Method and apparatus for detecting short circuit in battery in real time, and computer-readable storage medium |
| CN108519205A (en) * | 2018-05-17 | 2018-09-11 | 华霆（合肥）动力技术有限公司 | Battery core thermal runaway detecting system and method |
| CN108828457A (en) * | 2018-07-27 | 2018-11-16 | 清华大学 | Battery thermal runaway experimental provision and its system |
| CN108872877A (en) * | 2018-07-27 | 2018-11-23 | 清华大学 | Battery thermal runaway experimental provision and its system |
| CN109164393A (en) * | 2018-07-27 | 2019-01-08 | 清华大学 | Battery thermal runaway experimental provision, system and method |
| WO2019179031A1 (en) * | 2018-03-23 | 2019-09-26 | Chongqing Jinkang New Energy Vehicle Co., Ltd. | Battery cells for battery packs in electric vehicles |
| CN111146519A (en) * | 2019-12-28 | 2020-05-12 | 安徽中科中涣防务装备技术有限公司 | External embedded battery box thermal runaway monitoring and alarming device |
| CN111397751A (en) * | 2020-02-19 | 2020-07-10 | 清华大学 | Method and system for testing internal temperature of lithium ion power battery |
| 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 |
| CN111999661A (en) * | 2020-08-10 | 2020-11-27 | 南京莱迪新能源科技有限公司 | Comprehensive experimental device for monitoring working state of lithium ion battery for new energy storage |
| CN113074825A (en) * | 2021-03-31 | 2021-07-06 | 山东大学 | System and method for monitoring temperature change of single batteries in battery pack |
| CN113253119A (en) * | 2021-06-25 | 2021-08-13 | 蜂巢能源科技有限公司 | Battery burst type thermal runaway monitoring method and device and readable storage medium |
| CN113777508A (en) * | 2021-11-11 | 2021-12-10 | 聊城中翔泰电子科技有限公司 | Testing device and testing method for storage battery |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946682A (en) * | 2017-12-15 | 2018-04-20 | 浙江隆劲电池科技有限公司 | A kind of lithium battery of detectable internal temperature and pressure |
| CN108226693A (en) * | 2017-12-18 | 2018-06-29 | 清华大学 | Method and apparatus for detecting short circuit in battery in real time, and computer-readable storage medium |
| CN108226693B (en) * | 2017-12-18 | 2020-02-07 | 清华大学 | Method and apparatus for detecting short circuit in battery in real time, and computer-readable storage medium |
| WO2019179031A1 (en) * | 2018-03-23 | 2019-09-26 | Chongqing Jinkang New Energy Vehicle Co., Ltd. | Battery cells for battery packs in electric vehicles |
| CN108519205A (en) * | 2018-05-17 | 2018-09-11 | 华霆（合肥）动力技术有限公司 | Battery core thermal runaway detecting system and method |
| CN108828457A (en) * | 2018-07-27 | 2018-11-16 | 清华大学 | Battery thermal runaway experimental provision and its system |
| CN108872877A (en) * | 2018-07-27 | 2018-11-23 | 清华大学 | Battery thermal runaway experimental provision and its system |
| CN109164393A (en) * | 2018-07-27 | 2019-01-08 | 清华大学 | Battery thermal runaway experimental provision, system and method |
| CN111146519A (en) * | 2019-12-28 | 2020-05-12 | 安徽中科中涣防务装备技术有限公司 | External embedded battery box thermal runaway monitoring and alarming device |
| CN111397751A (en) * | 2020-02-19 | 2020-07-10 | 清华大学 | Method and system for testing internal temperature of lithium ion power battery |
| 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 |
| CN111999661A (en) * | 2020-08-10 | 2020-11-27 | 南京莱迪新能源科技有限公司 | Comprehensive experimental device for monitoring working state of lithium ion battery for new energy storage |
| CN113074825A (en) * | 2021-03-31 | 2021-07-06 | 山东大学 | System and method for monitoring temperature change of single batteries in battery pack |
| CN113253119A (en) * | 2021-06-25 | 2021-08-13 | 蜂巢能源科技有限公司 | Battery burst type thermal runaway monitoring method and device and readable storage medium |
| CN113777508A (en) * | 2021-11-11 | 2021-12-10 | 聊城中翔泰电子科技有限公司 | Testing device and testing method for storage battery |
| CN113777508B (en) * | 2021-11-11 | 2022-04-05 | 聊城中翔泰电子科技有限公司 | Testing device and testing method for storage battery |
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