CN203323906U - Experimental device used for testing lithium battery diaphragm closed pore temperature and damaged diaphragm temperature - Google Patents
Experimental device used for testing lithium battery diaphragm closed pore temperature and damaged diaphragm temperature Download PDFInfo
- Publication number
- CN203323906U CN203323906U CN2013203065066U CN201320306506U CN203323906U CN 203323906 U CN203323906 U CN 203323906U CN 2013203065066 U CN2013203065066 U CN 2013203065066U CN 201320306506 U CN201320306506 U CN 201320306506U CN 203323906 U CN203323906 U CN 203323906U
- Authority
- CN
- China
- Prior art keywords
- temperature
- battery
- closed pore
- diaphragm
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 239000011148 porous material Substances 0.000 title claims abstract description 18
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 11
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model discloses an experimental device used for testing lithium battery diaphragm closed pore temperature and damaged diaphragm temperature. The experimental device comprises a heat baking oven with a temperature adjusting system, an internal resistance tester for measuring and recording the internal resistance of a test battery, and a miniature thermocouple used for measuring the internal temperature of the test battery. A support bench is arranged inside the heat baking oven. The experimental device can test the relationship between the battery internal temperature change and the internal resistance of the battery in a real-time manner and accurately and effectively test the real-time temperature of the battery when the battery diaphragm undergoes a closed pore and is damaged.
Description
Technical field
The utility model relates to a kind of lithium electricity industry method of testing technical field, relates in particular to a kind of for testing the experimental provision of lithium battery diaphragm closed pore temperature and broken film temperature.
Background technology
Along with becoming increasingly conspicuous of the problems such as energy crisis, environmental pollution; lithium ion battery has been widely used in various portable electric devices, has had on the equipment such as power supply, LEV as the new generation of green power supply; yet in use often there are various security performances in lithium ion battery, thereby restrict its development.At present, lithium ion battery is normally assembled the rolling core by the pole piece that scribbles the both positive and negative polarity material and battery diaphragm by the mode of coiling or lamination, will roll up core and be packed, injects electrolytic solution by housing, makes the monomer battery core.Wherein, the major function of battery diaphragm is isolated the positive/negative plate in battery, prevents that pole piece from directly contacting the generation short circuit, has the tortuous micro channel connected in barrier film simultaneously, makes the both positive and negative polarity ion in battery freely to pass through in micropore.Yet lithium battery in use makes internal temperature of battery raise because inner micro-short circuit produces Joule heat, when temperature acquires a certain degree, the small cavity of battery diaphragm inside can constantly dwindle barrier film generation closed pore and make the internal resistance of cell increase, when internal temperature of battery is enough high thus reach barrier film melting temperature or more than, now barrier film shrinks the internal resistance of cell and reduces, and now inside battery occurrence of large-area short circuit makes the high security incident such as blast of internal temperature of battery.Therefore closed pore and the fail temperature of battery diaphragm have determined battery heat temperature resistant safe performance.
Can not carry out in real time diaphragm closed pore temperature, fail temperature parameter, measure accurately and effectively in the device of test lithium ion battery separator closed pore, fail temperature in test at present, therefore for the problem of current proving installation, designed a kind of Real-Time Monitoring, recorded battery septum closed pore, the experimental provision of fail temperature.
The utility model content
The utility model purpose is exactly in order to make up the defect of prior art, provides a kind of for testing the experimental provision of lithium battery diaphragm closed pore temperature and broken film temperature, and the utility model is achieved through the following technical solutions:
A kind of for testing the experimental provision of lithium battery diaphragm closed pore temperature and broken film temperature, comprise oven heat with humidity control system, for the internal resistance test device of survey record test battery internal resistance, and, for measuring the micro thermocouple of test battery internal temperature, in described oven heat, brace table is installed.
Described micro thermocouple is miniature platinum filament thermopair.
Described battery cover board is aluminum or steel.
Principle of work:
The implanted battery battery core to be tested of described micro thermocouple inside, draw from center has the battery cover board of micropore other end, receive on a temperature measuring device, described micropore adopts high temperature setting glue to be sealed, on battery cover board, the positive and negative polarities post accesses internal resistance test device by wire, described battery to be tested is placed on brace table, and together is placed in oven heat.
The utility model has the advantages that:
By this utility model device solves the residing internal environment temperature of real-time testing battery inside battery barrier film under hot environment; Simultaneously the variation real time record by the internal resistance of cell temperature of battery inner septum generation closed pore and destruction, for the heat-resisting safety of estimating barrier film provides strong foundation.
The accompanying drawing explanation
Fig. 1 real-time testing battery septum closed pore and fail temperature proving installation figure.
Schematic diagram is cutd open in the inner thermometric of Fig. 2 battery core and test battery side.
Embodiment
As shown in Figure 1, a kind of for testing the experimental provision of lithium battery diaphragm closed pore temperature and broken film temperature, it comprises oven heat 1 with humidity control system, for the internal resistance test device 6 of survey record test battery internal resistance, and the micro thermocouple 3 for measuring the test battery internal temperature, the implanted battery battery core to be tested of described micro thermocouple 37 inside, draw from center has the battery cover board 4 of micropore other end, receive on a temperature measuring device 5, described micropore adopts high temperature setting glue to be sealed; On battery cover board 4, the positive and negative polarities post accesses internal resistance test device 6 by wire, and described battery to be tested is placed on brace table 2, and together is placed in oven heat 1.
Draw from beating pertusate cover plate center after the volume heart that will assemble and be implanted with as shown in Figure 2 miniature platinum filament thermopair enters shell, then cover plate is carried out to laser welded seal, adopt high temperature setting glue that the hole on cover plate is sealed simultaneously; Sealed steel ball, some high-temp glue after injecting the electrolyte into again inside battery; Battery is placed on the brace table in heating cabinet and is fixed; The platinum filament thermopair that to draw from cover plate is connected to temperature measuring device, cover plate pole lead-in wire access internal resistance test device, as shown in Figure 1; During test, the power supply heating cabinet is heated to 180-200 ℃ and the insulation, on now real time record internal resistance instrument and temperature test with respect to data variation, can judge closed pore temperature and the fail temperature of battery diaphragm thereby make temperature-internal resistance delta data curve.
Claims (2)
1. one kind for testing the experimental provision of lithium battery diaphragm closed pore temperature and broken film temperature, it is characterized in that: comprise oven heat with humidity control system, for the internal resistance test device of survey record test battery internal resistance, and, for measuring the micro thermocouple of test battery internal temperature, in described oven heat, brace table is installed.
2. according to claim 1 a kind of for testing the experimental provision of lithium battery diaphragm closed pore temperature and broken film temperature, it is characterized in that: described micro thermocouple is miniature platinum filament thermopair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203065066U CN203323906U (en) | 2013-05-30 | 2013-05-30 | Experimental device used for testing lithium battery diaphragm closed pore temperature and damaged diaphragm temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203065066U CN203323906U (en) | 2013-05-30 | 2013-05-30 | Experimental device used for testing lithium battery diaphragm closed pore temperature and damaged diaphragm temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203323906U true CN203323906U (en) | 2013-12-04 |
Family
ID=49663246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203065066U Expired - Lifetime CN203323906U (en) | 2013-05-30 | 2013-05-30 | Experimental device used for testing lithium battery diaphragm closed pore temperature and damaged diaphragm temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203323906U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020093A (en) * | 2014-05-20 | 2014-09-03 | 中国科学院金属研究所 | Method and device for measuring air permeability of battery diaphragm |
| CN104865534A (en) * | 2015-04-29 | 2015-08-26 | 同济大学 | Inner temperature estimation method for single cell |
| CN105158566A (en) * | 2015-08-12 | 2015-12-16 | 深圳市星源材质科技股份有限公司 | Test device and method for closed-pore film rupture temperature and ion conductivity of cell diaphragm |
| CN105738404A (en) * | 2016-04-15 | 2016-07-06 | 合肥国轩高科动力能源有限公司 | Method and device for testing closed pore temperature and membrane breaking temperature of lithium ion battery diaphragm |
| CN106404722A (en) * | 2016-11-03 | 2017-02-15 | 深圳市沃特玛电池有限公司 | Detection device and method for shutdown temperature of lithium-ion battery separator |
| CN107342443A (en) * | 2017-08-01 | 2017-11-10 | 中国科学技术大学 | 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 |
| CN111766283A (en) * | 2020-06-23 | 2020-10-13 | 合肥国轩高科动力能源有限公司 | Diaphragm closed pore temperature testing method |
-
2013
- 2013-05-30 CN CN2013203065066U patent/CN203323906U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020093A (en) * | 2014-05-20 | 2014-09-03 | 中国科学院金属研究所 | Method and device for measuring air permeability of battery diaphragm |
| CN104865534A (en) * | 2015-04-29 | 2015-08-26 | 同济大学 | Inner temperature estimation method for single cell |
| CN105158566A (en) * | 2015-08-12 | 2015-12-16 | 深圳市星源材质科技股份有限公司 | Test device and method for closed-pore film rupture temperature and ion conductivity of cell diaphragm |
| CN105738404A (en) * | 2016-04-15 | 2016-07-06 | 合肥国轩高科动力能源有限公司 | Method and device for testing closed pore temperature and membrane breaking temperature of lithium ion battery diaphragm |
| CN106404722A (en) * | 2016-11-03 | 2017-02-15 | 深圳市沃特玛电池有限公司 | Detection device and method for shutdown temperature of lithium-ion battery separator |
| CN106404722B (en) * | 2016-11-03 | 2019-05-28 | 深圳市沃特玛电池有限公司 | The detection device and method of lithium ion battery separator closed pore temperature |
| CN107342443A (en) * | 2017-08-01 | 2017-11-10 | 中国科学技术大学 | 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 |
| CN111766283A (en) * | 2020-06-23 | 2020-10-13 | 合肥国轩高科动力能源有限公司 | Diaphragm closed pore temperature testing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203323906U (en) | Experimental device used for testing lithium battery diaphragm closed pore temperature and damaged diaphragm temperature | |
| Chen et al. | Electro-thermal coupling model of lithium-ion batteries under external short circuit | |
| CN202471632U (en) | Device for detecting closed-pore temperature and broken-diaphragm temperature of battery diaphragm | |
| CN105158566B (en) | Battery septum closed pore broken film temperature and ionic conductivity test device and method | |
| CN104008243A (en) | Power battery module thermal runway expansion process heat transfer quantity quantitative analysis method | |
| CN105445313A (en) | Method for detecting thermal stability of battery separator | |
| CN110764004A (en) | Analysis method for thermal simulation of battery pack | |
| CN108511829A (en) | A kind of lithium battery | |
| CN105633489B (en) | The encapsulating structure of power battery internal short-circuit simulation | |
| Liu et al. | Thermal characteristic and performance influence of a hybrid supercapacitor | |
| CN113161634B (en) | Lithium ion battery fault simulation device and method based on gas signal monitoring | |
| CN109884542B (en) | Method for detecting micro short circuit fault monomer in lithium iron phosphate power battery parallel module | |
| CN105509922A (en) | Testing method for closed pore temperature of battery diaphragm | |
| CN204177757U (en) | Diaphragm closed pore, broken film temperature proving installation | |
| CN203630313U (en) | Battery internal short circuit test system | |
| CN204228291U (en) | A kind of measurement mechanism of diaphragm closed pore temperature and system | |
| CN215575358U (en) | Device for testing ionic conductivity of diaphragm | |
| CN105070968B (en) | A kind of lithium ion cell safe testing synchronous data sampling method | |
| CN112525792A (en) | Lithium battery diaphragm temperature testing device and testing method based on pressure control | |
| CN103795341A (en) | Method for testing PID-attenuation-proof performance of photovoltaic assembly | |
| CN203746994U (en) | Battery inner temperature measurement device | |
| CN208333704U (en) | The test device of porous membrane closed pore temperature and broken film temperature | |
| CN202487722U (en) | Battery module | |
| CN110531267A (en) | Battery thermal shock test method and test device | |
| CN201837713U (en) | Testing machine for short circuit of battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 230000 Yaohai Industrial Park, Anhui, Hefei No. D weft Road, No. 7 Patentee after: Gotion High-tech Co., Ltd. Address before: 230011 Pearl Road 7, Yaohai Industrial Park, Anhui, Hefei Patentee before: Hefei Guoxuan High-Tech Power Energy Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
|
| CX01 | Expiry of patent term |