CN113381076A - Lithium battery production safety detection device and method - Google Patents

Lithium battery production safety detection device and method Download PDF

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Publication number
CN113381076A
CN113381076A CN202110423324.6A CN202110423324A CN113381076A CN 113381076 A CN113381076 A CN 113381076A CN 202110423324 A CN202110423324 A CN 202110423324A CN 113381076 A CN113381076 A CN 113381076A
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control
vacuum
box body
box
temperature
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Chinese (zh)
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杨庆杰
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Linyi Jingshuo Photoelectric Technology Co ltd
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Linyi Jingshuo Photoelectric Technology Co ltd
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Priority to CN202110423324.6A priority Critical patent/CN113381076A/en
Publication of CN113381076A publication Critical patent/CN113381076A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00Machines, plants or systems, using electric or magnetic effects
    • F25B21/02Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00Heating arrangements
    • F26B23/04Heating arrangements using electric heating
    • F26B23/06Heating arrangements using electric heating resistance heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00Thermometers specially adapted for specific purposes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L21/00Vacuum gauges
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a lithium battery safety production detection device, which comprises a plurality of independent vacuum boxes arranged in a row structure, wherein the rear part of each independent vacuum box is connected with a vacuum extractor through a vacuum extractor, the upper end of a bottom plate of each independent vacuum box is provided with an electric heating device capable of heating the upper end of the bottom plate, a rapid cooling system is arranged on an internal top plate of each independent vacuum box, meanwhile, the front end of each independent vacuum pumping box body is provided with a control end which can monitor and adjust the temperature and the vacuum degree in the independent vacuum pumping box body, the control end is internally provided with a wireless transmission end which can remotely and wirelessly transmit the control content, and by adopting the device and the method, the safety of the lithium battery in the baking process can be greatly improved, the product quality of the lithium battery is finally improved, and the safety of a user is guaranteed.

Description

Lithium battery production safety detection device and method
Technical Field
The invention relates to the technical field of lithium battery production, in particular to a lithium battery production safety detection device and a lithium battery production safety detection method.
Background
With the progress of science and technology, lithium batteries have become popular due to their large capacity and small size, and lithium batteries are classified into lithium batteries and lithium ion batteries, and the lithium ion batteries were first developed by sony corporation of japan in 1990. It is a negative electrode (lithium or lithium alloy used as a negative electrode in a conventional lithium battery) formed by intercalating lithium ions into carbon (petroleum coke and graphite). The cathode materials are commonly used with LixCoO2, also with LixNiO2, and LixMnO4, and the electrolyte with LiPF6+ diethylene carbonate (EC) + dimethyl carbonate (DMC). In the production process of the lithium battery, one link is battery baking which is generally required to be continuously baked for 24 hours at the temperature of 85 ℃, in order to avoid the influence of impurities and other factors on the lithium battery during baking, the conventional method is to perform continuous baking in a vacuum state, in practical operation, the change of the vacuum degree and the change of the temperature have great influence on the baking process of the lithium battery, specifically, the larger the change of the vacuum degree and the temperature is, the greater the influence is, and directly affects the safety problem during baking, the use safety, the service life and the charging efficiency of the finished lithium battery, therefore, how to maintain the control of the degree of vacuum and the control of the temperature when baking under vacuum conditions is a problem regarding the safety of lithium batteries in production and use after shipment, and therefore, attention must be paid to this process.
Disclosure of Invention
The invention aims to solve the problems and provides a lithium battery production safety detection device and a lithium battery production safety detection method.
In order to achieve the technical purpose, the invention adopts a lithium battery safety production detection device which comprises a plurality of independent vacuum pumping boxes arranged in a row structure, wherein the rear part of each independent vacuum pumping box is connected with a vacuum pumping machine through a vacuum pumping pipe, the upper end of the bottom plate of each independent vacuum pumping box is provided with an electric heating device capable of heating the upper end of the bottom plate, the inner top plate of each independent vacuum pumping box is provided with a rapid cooling system, the front end of each independent vacuum pumping box is provided with a control end capable of monitoring and adjusting the temperature and the vacuum degree in the independent vacuum pumping box, and the control end is internally provided with a wireless transmission end capable of remotely and wirelessly transmitting control contents.
Preferably, the rapid cooling system comprises a plurality of semiconductor refrigeration modules which are arranged in a horizontal-vertical array manner, the cold end of each semiconductor refrigeration module is attached to the inner top plate of the independent vacuum-pumping box body, and the hot end of each semiconductor refrigeration module is positioned at the upper end of the independent vacuum-pumping box body;
the control end comprises: the temperature detection sensor, the vacuum degree monitor and the input end of the microprocessor form control connection, and the alarm module, the wireless signal remote transmission module and the output end of the microprocessor form control connection;
the liquid crystal screen at the front end of the box body is in control connection with the control circuit board, and the front end of the box body is also provided with a control key which is in control connection with the electric heating device, the rapid cooling system and the vacuum-pumping machine;
the front end of the box body is provided with an alarm lamp which is in control connection with the microprocessor.
On the basis, the invention also discloses a lithium battery production safety detection method, which comprises the following steps:
(1) placing a certain number of lithium batteries in a hollow high-temperature-resistant hard plastic frame with supporting legs at the bottom and placing the hollow high-temperature-resistant hard plastic frame in an independent vacuum-pumping box body;
(2) setting the temperature and starting a vacuumizing device through the operation and control of a control key on a box body at the front end of the independent vacuumizing box body, and setting the vacuum degree to be reached; of course, the above operation can also be completed through a remote control terminal;
(3) when the vacuum degree in the independent vacuum pumping box is too high or insufficient, the temperature is too high or too low, the alarm module can give an alarm in time through modes such as sound and vibration, the control terminal receives the alarm warning of sound and vibration or the alarm lamp at the front end of the box body continuously flashes, and then the vacuum degree and the temperature are adjusted through the control of the control terminal or the corresponding control key at the front end of the box body.
After the technical improvement and the method are adopted, the invention has the following advantages:
1. the invention adopts a plurality of semiconductor refrigeration module structures which are arranged in a horizontal-vertical array manner, can achieve the purpose of rapid cooling when the temperature needs to be reduced, and can effectively inhibit the temperature rise particularly under the condition of too rapid temperature rise, thereby ensuring the safety of the lithium battery in the baking process;
2. the invention adopts a wireless remote control system, can monitor and control the vacuum degree and the temperature at any time through a smart phone and a computer terminal, and sets short-range and remote alarm, and can quickly process emergency at the first time;
3. according to the invention, the baked lithium battery is placed by adopting the hollow high-temperature-resistant hard plastic frame with the supporting legs at the bottom, so that the lithium battery can be prevented from reacting with metal objects during baking, and the uniformity during baking can be improved.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a system block diagram of the present invention;
FIG. 3 is a schematic view of the installation structure of the electric heating device and the semiconductor cooling module according to the present invention; wherein, 1, the vacuum box is independent; 2. vacuumizing a tube; 3. a vacuum extractor; 4. a base plate; 5. an electric heating device; 6. a semiconductor refrigeration module; 7. a cold end; 8. a hot end; 9. a liquid crystal screen; 10. a control circuit board; 11. a box body; 12. a temperature detection sensor; 13. a vacuum degree monitor; 14. a microprocessor; 15. an alarm module; 16. a wireless signal remote transmission module; 17. a control key; 18. an alarm lamp.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
According to the graph 1, the lithium battery safety production detection device comprises a plurality of independent vacuum boxes 1 which are arranged in a row structure, wherein the rear part of each independent vacuum box 1 is connected with a vacuum machine 3 through a vacuum pipe 2, and the independent vacuum boxes 1 are vacuumized.
The upper end of the bottom plate 4 of each independent vacuum pumping box body 1 is provided with an electric heating device 5 capable of heating the upper end of the bottom plate 4, a rapid cooling system is arranged on an inner top plate of each independent vacuum pumping box body 1, the front end of each independent vacuum pumping box body 1 is provided with a control end capable of monitoring and adjusting the temperature and the vacuum degree in the independent vacuum pumping box body 1, and a wireless transmission end capable of remotely transmitting wireless transmission control contents is arranged in the control end.
In the invention, the preferred rapid cooling system comprises a plurality of semiconductor refrigeration modules 6 which are arranged in a horizontal-vertical array manner, the cold end 7 of each semiconductor refrigeration module 6 is attached to the inner top plate of the independent vacuum box 1, and the hot end 8 of each semiconductor refrigeration module 6 is positioned at the upper end of the independent vacuum box 1 (see fig. 3).
As can be seen from fig. 2, in the present invention, the preferred control terminal includes: the front end of the box body 11 is provided with a liquid crystal screen 9 and a control circuit board 10, the box body 11 is embedded in the front end of the independent vacuumizing box body 1, and a temperature detection sensor 12 and a vacuum degree monitor 13 are arranged in the independent vacuumizing box body 1 and used for monitoring the real-time temperature and the real-time vacuum degree in the independent vacuumizing box body 1 respectively.
A microprocessor 14, an alarm module 15 and a wireless signal remote transmission module 16 are arranged in the box body 11, and the microprocessor 14, the alarm module 15, the wireless signal remote transmission module 16, the temperature detection sensor 12 and the vacuum degree monitor 13 are all in control connection with the control circuit board 10; and the input ends of the temperature detection sensor 12, the vacuum degree monitor 13 and the microprocessor 14 form control connection, and the alarm module 15 and the wireless signal remote transmission module 16 form control connection with the output end of the microprocessor 14.
In the invention, the liquid crystal screen 9 at the front end of the box body 11 is in control connection with the control circuit board 10, and the front end of the box body 11 is also provided with a control key 17 which is in control connection with the electric heating device 5, the rapid cooling system and the vacuum-pumping machine 3; and a warning lamp 18 which is in control connection with the microprocessor 14 is arranged at the front end of the box body 11.
When the temperature detection sensor 12 detects that the temperature of the independent vacuum pumping box body 1 is too high, the alarm lamp 18 can give an alarm immediately, and workers on site can control the rapid cooling system through the control key 17 (namely, the inside of the independent vacuum pumping box body 1 is cooled through the semiconductor refrigeration module 6), so that potential safety hazards caused by the fact that the temperature in the independent vacuum pumping box body 1 is too high are prevented. Or the semiconductor refrigeration module 6 is controlled by the remote monitoring end to cool the inside of the independent vacuum-pumping box body 1.
When the vacuum degree monitor 13 detects that the vacuum degree in the independent vacuum pumping box body 1 does not reach the required value, the alarm lamp 18 can give an alarm immediately, and workers on site can control the vacuum pumping machine 3 through the control key 17 or adjust the vacuum pumping machine 3 through the control of a remote monitoring end.
On the basis, the invention also discloses a lithium battery production safety detection method, which comprises the following steps:
(1) placing a certain number of lithium batteries in a hollow high-temperature-resistant hard plastic frame with supporting legs at the bottom and placing the hollow high-temperature-resistant hard plastic frame in an independent vacuum pumping box body 1;
(2) the temperature is set and the vacuumizing device is started through the operation and control of a control key 17 on the box body 11 at the front end of the independent vacuumizing box body 1, and the vacuum degree to be achieved is set; of course, the above operation can also be completed through a remote control terminal;
(3) when the vacuum degree in the independent vacuum pumping box body 1 is too high or insufficient, the temperature is too high or too low, the alarm module 15 can give an alarm in time through modes such as sound and vibration, the control terminal receives the alarm prompt of sound and vibration or the alarm lamp 18 at the front end of the box body continuously flashes, and then the vacuum degree and the temperature are adjusted through the control of the control terminal or the corresponding control key 17 at the front end of the box body 11.
In general, the invention adopts a plurality of semiconductor refrigeration module structures which are arranged in a horizontal-vertical array manner, can achieve the purpose of rapid cooling when the temperature needs to be reduced, and can effectively inhibit the temperature rise particularly under the condition of too rapid temperature rise, thereby ensuring the safety of the lithium battery in the baking process; the invention adopts a wireless remote control system, can monitor and control the vacuum degree and the temperature at any time through a smart phone and a computer terminal, and sets short-range and remote alarm, and can quickly process emergency at the first time; meanwhile, the baked lithium battery is placed by the hollow high-temperature-resistant hard plastic frame with the supporting legs at the bottom, so that the lithium battery can be prevented from reacting with metal objects during baking, and the uniformity during baking can be improved.

Claims (3)

1. The utility model provides a lithium cell safety in production detection device, includes a plurality of stand alone type evacuation box that are the bank of things structure setting, every stand alone type evacuation box rear portion all is connected with a vacuum extractor through the evacuation pipe, the bottom plate upper end of every stand alone type evacuation box all is equipped with one and can heats the electric heater unit of bottom plate upper end, its characterized in that, the inside roof of every stand alone type evacuation box all is equipped with a rapid cooling system, and every stand alone type evacuation box front end all is equipped with one simultaneously and can monitors and adjust the control end in the stand alone type evacuation box temperature, vacuum, is equipped with the wireless transmission end that can carry out teletransmission wireless transmission with control content in this control end.
2. The lithium battery safety production detection device of claim 1, wherein the rapid cooling system comprises a plurality of semiconductor refrigeration modules arranged in a vertical-horizontal array, a cold end of each semiconductor refrigeration module is attached to an internal top plate of the independent vacuum box, and a hot end of each semiconductor refrigeration module is located at an upper end of the independent vacuum box;
the control end comprises: the temperature detection sensor, the vacuum degree monitor and the input end of the microprocessor form control connection, and the alarm module, the wireless signal remote transmission module and the output end of the microprocessor form control connection;
the liquid crystal screen at the front end of the box body is in control connection with the control circuit board, and the front end of the box body is also provided with a control key which is in control connection with the electric heating device, the rapid cooling system and the vacuum-pumping machine; the front end of the box body is provided with an alarm lamp which is in control connection with the microprocessor.
3. A lithium battery production safety detection method is characterized by comprising the following steps:
(1) placing a certain number of lithium batteries in a hollow high-temperature-resistant hard plastic frame with supporting legs at the bottom and placing the hollow high-temperature-resistant hard plastic frame in an independent vacuum-pumping box body;
(2) setting the temperature and starting a vacuumizing device through the operation and control of a control key on a box body at the front end of the independent vacuumizing box body, and setting the vacuum degree to be reached; of course, the above operation can also be completed through a remote control terminal;
(3) when the vacuum degree in the independent vacuum pumping box is too high or insufficient, the temperature is too high or too low, the alarm module can give an alarm in time through modes such as sound and vibration, the control terminal receives the alarm warning of sound and vibration or the alarm lamp at the front end of the box body continuously flashes, and then the vacuum degree and the temperature are adjusted through the control of the control terminal or the corresponding control key at the front end of the box body.
CN202110423324.6A 2021-04-20 2021-04-20 Lithium battery production safety detection device and method Pending CN113381076A (en)

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Application Number Priority Date Filing Date Title
CN202110423324.6A CN113381076A (en) 2021-04-20 2021-04-20 Lithium battery production safety detection device and method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113629303A (en) * 2021-10-09 2021-11-09 深圳市腾运发电子有限公司 Wind energy storage standby power management method and system and intelligent terminal

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206162219U (en) * 2016-10-12 2017-05-10 深圳市镭煜科技有限公司 Lithium cell drying furnace automatic control system
CN206648416U (en) * 2017-03-23 2017-11-17 广州聚散流沙科技有限公司 A kind of lithium battery production vacuum oven
CN208022107U (en) * 2018-04-03 2018-10-30 官荣沐 A kind of electric automobile lithium battery damp-proof device
CN208155344U (en) * 2018-03-27 2018-11-27 河北超威电源有限公司 Curing chamber of accumulator plate temperature online monitoring system
CN209820084U (en) * 2019-05-11 2019-12-20 江苏艾立特新能源科技有限公司 Lithium battery diaphragm drying device
CN211428681U (en) * 2020-03-04 2020-09-04 江苏海康博瑞电子有限公司 Electric auxiliary heating device for distribution box

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206162219U (en) * 2016-10-12 2017-05-10 深圳市镭煜科技有限公司 Lithium cell drying furnace automatic control system
CN206648416U (en) * 2017-03-23 2017-11-17 广州聚散流沙科技有限公司 A kind of lithium battery production vacuum oven
CN208155344U (en) * 2018-03-27 2018-11-27 河北超威电源有限公司 Curing chamber of accumulator plate temperature online monitoring system
CN208022107U (en) * 2018-04-03 2018-10-30 官荣沐 A kind of electric automobile lithium battery damp-proof device
CN209820084U (en) * 2019-05-11 2019-12-20 江苏艾立特新能源科技有限公司 Lithium battery diaphragm drying device
CN211428681U (en) * 2020-03-04 2020-09-04 江苏海康博瑞电子有限公司 Electric auxiliary heating device for distribution box

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113629303A (en) * 2021-10-09 2021-11-09 深圳市腾运发电子有限公司 Wind energy storage standby power management method and system and intelligent terminal

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Address after: West Village, Houchengxi Village, Baishabu Town, Lanshan District, Linyi City, Shandong Province, 276002

Applicant after: Jingshuo photoelectric technology (Shandong) Co.,Ltd.

Address before: 276000 baishabu Zhen Hou Cheng Xi Cun Xi, Lanshan District, Linyi City, Shandong Province

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Application publication date: 20210910