CN107388735A - A kind of intensified by ultrasonic wave heated-air drying power lithium-ion battery device and drying means - Google Patents
A kind of intensified by ultrasonic wave heated-air drying power lithium-ion battery device and drying means Download PDFInfo
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- CN107388735A CN107388735A CN201710586658.9A CN201710586658A CN107388735A CN 107388735 A CN107388735 A CN 107388735A CN 201710586658 A CN201710586658 A CN 201710586658A CN 107388735 A CN107388735 A CN 107388735A
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- baking oven
- ion battery
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- vavuum pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Biotechnology (AREA)
- Biomedical Technology (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention discloses a kind of intensified by ultrasonic wave heated-air drying power lithium-ion battery device and drying means, its device includes baking oven, vavuum pump and supersonic generator, vavuum pump is connected by pipeline with the side of baking oven, air bleeding valve is set gradually in the pipeline that baking oven is connected with vavuum pump, vacuum valve, and vavuum pump is located at air bleeding valve, between vacuum valve, the opposite side of baking oven is connected with electric heater, oven interior is provided with material lifting platform, material lifting platform is provided with the battery tray for being used for placing lithium ion battery, material lifting platform has vibrating disk, vibrating disk successively with ultrasonic transducer, supersonic generator connects.The present invention is by providing intensified by ultrasonic wave heated-air drying power lithium-ion battery device, accelerate transmission of the moisture of inside lithium ion cell in drying process to outside using intensified by ultrasonic wave Hot Air Drying, this method can substantially shorten drying time, reduce drying temperature.
Description
Technical field
The invention belongs to drying lithium ion battery field, specifically a kind of intensified by ultrasonic wave heated-air drying lithium ion power electricity
Pool device and drying means.
Background technology
Energy crisis and environmental pollution are by the extensive concern of countries in the world.At present, automobile consumes about crude output
45%, and discharge a large amount of GHG carbon dioxide and pollutant sulfur dioxide, nitrogen oxide etc..Accelerate to promote newly
Energy automobile, it has also become the urgent task that countries in the world are approved jointly.Wherein, lithium ion battery is light, course continuation mileage is long, high energy
Metric density and the advantages that have extended cycle life and be pollution-free, has become the primary selection of electric automobile.
Moisture in lithium ion battery can not only cause the decomposition of lithium salts in electrolyte, and have impact on solid electrolyte
The formation of interfacial film (SEI films) and stability, cause battery capacity to decay, and internal resistance increase, even result in cell expansion.Lithium battery
Close slurry, coating, winding and assembling etc. processing step inevitably will and air contact, cause moisture beyond technique will
Ask.In order to reduce the water content in battery core, need to toast battery core before fluid injection.At present, mainly hot air drying is used in industry
Dry method is dehydrated to lithium ion battery, and this roasting mode drying efficiency is relatively low, and energy consumption is larger, and drying temperature is high.
Ultrasonic wave is the sound wave that frequency is more than 20kHz, is a kind of mechanical oscillation propagated in medium, ultrasonic wave has direction of propagation property
By force, the features such as medium particle vibration acceleration is big.Ultrasonic wave can be divided into two classes according to frequency and power：One kind is that frequency is high, energy
Measure low diagnostic ultrasound；Another kind of is that frequency is low, and the high ultrasonic wave of power, the type ultrasonic wave can make the state of medium, group
Changed into, 26S Proteasome Structure and Function etc..Ultrasonic wave has a variety of physics and chemical effect, and the interaction of ultrasonic wave and medium can divide
For three kinds of heat engine system, mechanical schemes and cavitation mechanism.By the direct efficient coupling of ultrasonic wave in the hot air drying of power lithium-ion battery
During dry, using the strong fluctuation effect of high-frequency of ultrasound, cavitation effect and the features such as calorifics effect, heated-air drying mistake can be achieved
To the reinforcing of lithium ion battery heat and mass transfer process in journey, and reach and shorten drying time, reduce the purpose of drying temperature.
The content of the invention
A kind of the defects of purpose of the present invention is exactly to overcome traditional heated-air drying, there is provided intensified by ultrasonic wave hot air drying
Dry power lithium-ion battery device and drying means.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of intensified by ultrasonic wave heated-air drying power lithium-ion battery device, including baking oven, vavuum pump and ultrasonic wave hair
Raw device, the vavuum pump are connected with the side of baking oven by pipeline, set gradually in the pipeline that the baking oven is connected with vavuum pump
Air bleeding valve, vacuum valve, and vavuum pump, between air bleeding valve, vacuum valve, the opposite side of the baking oven is connected with electric heater, institute
To state oven interior and be provided with material lifting platform, the material lifting platform is provided with the battery tray for being used for placing lithium ion battery,
The material lifting platform has vibrating disk, and the vibrating disk is connected with ultrasonic transducer, supersonic generator successively.
Further scheme, the baking oven top are provided with thermocouple, anemobiagraph, pressure gauge.
Further scheme, flow control valve is provided between the baking oven and electric heater.
Further scheme, described ultrasonic transducer one end are located at oven interior, the ultrasonic transducer other end with
Supersonic generator connects, and the end is located at outside baking oven.
It is another object of the present invention to provide a kind of intensified by ultrasonic wave heated-air drying power lithium-ion battery device
Method, comprise the following steps：
(1) lithium ion battery to be sealed is closed into flow control valve, vacuum valve as in baking oven, opens vavuum pump, enter
Row vacuumize process；
(2) opening electric heater, open flow control valve, to casing in air pressure when reaching 1.05-1.2 atmospheric pressure, beat
Vacuum valve and air bleeding valve are driven, the protective gas that temperature is 40-120 DEG C is filled with and heats lithium ion battery, air-supply preheating 5-
100min；
(3) supersonic generator is opened, sets the ul-trasonic irradiation time as 5-100min；
(4) electric heater, flow control valve, vacuum valve are closed, opens vavuum pump, closes supersonic generator, vacuum is protected
Press 10-100min；
(5) normal temperature protective gas is filled with, forced cooling processing is carried out to battery.
Further scheme, the time of vacuumize process is 2-10min in the step (1), and vacuum need to reach 0.1-
10kPa。
Further scheme, protective gas is argon gas, nitrogen or carbon dioxide in the step (2)；Described protectiveness
Content of water in gas is less than 100ppm；The flow velocity for the protective gas being filled with is 0.1-10m/s.
Further scheme, the vibrating disk being connected with supersonic generator and battery tray in the step (3) away from
From for 1-15cm；The power of supersonic generator is 1-20kW, and the frequency of ultrasonic wave is 20~-60kHz.
Further scheme, step (2)-(4) are a cyclic process, and cycle-index is 2-20 times.
Further scheme, the time that normal temperature protective gas is filled with the step (5) are 5-20min, normal temperature protective gas
Temperature is 15-22 DEG C, and the cooling temperature range to be reached is 30-40 DEG C.
The problems such as present invention is less efficient for traditional heated-air drying, and energy consumption is higher, propose a kind of intensified by ultrasonic wave heat
The method for air-drying dry power lithium-ion battery.Water translocation comes from two aspect resistances in lithium ion battery：Moisture is by material
Portion's migration resistance into air to surface of material diffusional resistance and moisture from surface of material.Ultrasonic wave causes the sky near material
Gas dither, and form turbulent flow in material-Air Interface；This can reduce diffusion boundary layer thickness, so as to reduce moisture by thing
The resistance that material surface is spread into air.Ultrasonic wave causes particle inside material to produce interior friction, and portion of ultrasonic sound wave is inhaled by material
Receipts cause temperature of charge to raise；In addition, under ultrasonication, material tissue constantly selectively compresses and stretched, and shape
Into being advantageous to minim channel of the moisture to external diffusion, this reduce moisture from the resistance that is spread to surface of material inside material.
Vacuum can reduce pressure in baking oven, reduce the boiling point of water, promote moisture vaporization in battery material, improve dry
Dry speed, constantly heats battery material while vacuumizing, and the moisture in material is diffused into surface by concentration difference, in convection current
In the presence of overcome inter-molecular attraction so as to being taken away by vavuum pump.
Beneficial effects of the present invention：
(1) compared with traditional heated-air drying, this method can shorten drying time, improve drying efficiency；
(2) compared with traditional heated-air drying, this method can reduce drying temperature, prevent the too high reduction adhesive of temperature
Bond effect.
Brief description of the drawings
Fig. 1 is intensified by ultrasonic wave heated-air drying power lithium-ion battery apparatus structure schematic diagram of the present invention；
In figure, 1- electric heaters, 2- flow control valves, 3- thermocouples, 4- anemobiagraphs, 5- pressure gauges, 6- vavuum pumps, 7- is true
Empty valve, 2- air bleeding valves, 9- lithium ion batteries, 10- battery trays, 11- supersonic generators, 12- ultrasonic transducers, 13- shake
Moving plate, 14- material lifting platforms, 15- baking ovens.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of intensified by ultrasonic wave heated-air drying power lithium-ion battery device, including baking oven 15, vavuum pump 6
And supersonic generator 11, vavuum pump 6 are connected by pipeline with the side of baking oven 15, the pipe that baking oven 15 is connected with vavuum pump 6
Air bleeding valve 2, vacuum valve 7 are set gradually in road, and vavuum pump 6, between air bleeding valve 2, vacuum valve 7, the opposite side of baking oven 15 connects
Electric heater 1 is connected to, flow control valve 2 is provided between baking oven 15 and electric heater 1, baking oven 15 is internally provided with material lifting platform
14, material lifting platform 14 is provided with the battery tray 10 for being used for placing lithium ion battery 9, and material lifting platform 14 has vibrating disk
13, vibrating disk 13 is connected with ultrasonic transducer 12, supersonic generator 11 successively, and the one end of ultrasonic transducer 12 is located at baking oven
Inside 15, the other end of ultrasonic transducer 12 is connected with supersonic generator 11, and the end is located at outside baking oven 15.Baking oven 15 pushes up
Portion is provided with thermocouple 3, anemobiagraph 4, pressure gauge 5.
Embodiment 1
A kind of method of intensified by ultrasonic wave heated-air drying power lithium-ion battery, specifically includes following steps：(1) will wait to seal
The lithium ion battery 9 of mouth, which is put into battery tray 10, to be placed in inside baking oven 15, the height of regulation material lifting platform 14, makes vibrating disk
13 and the distance of battery tray 10 are 3cm；Flow control valve 2, vacuum valve 7 are closed, vavuum pump 6 is opened, when vacuum values reach
Stop vacuumizing during 5kPa, and close air bleeding valve 2.(2) opening electric heater 1, flow control valve 2 is opened, is filled with argon gas, with
1m/s wind speed, and 20 DEG C of temperature fortune wind, when pressure reaches 1.1 atmospheric pressure in casing, open air bleeding valve 2 and true
Empty valve 7, and continue to transport wind 15min.(3) transport wind simultaneously, supersonic generator 11 is opened, with 5kW power and 30kHz frequency
Rate acts on battery.(4) electric heater 1, flow control valve 2 and vacuum valve 7 are closed, vavuum pump 6 is opened, is closed after 1min super
Sonic generator 11；When vacuum values reach 5kPa, vavuum pump 6 and air bleeding valve 2, pressurize 20min are closed.(5) step (2)~
(4) it is a circulation, repeats the circulation 10 times.(6) electric heater 1 is closed, opens flow control valve 2, air bleeding valve 2 and vacuum
Valve 7, argon gas protective gas is filled with, wind 10min is transported with 1m/s wind speed and 22 DEG C of temperature, lithium ion battery temperature is down to
40℃。
After intensified by ultrasonic wave heated-air drying repeats 10 circulations, the battery core average water content in power lithium-ion battery is
725ppm, used time 490min；Under the same conditions, battery core water content reaches 725ppm, and traditional heated-air drying needs the used time
600min, intensified by ultrasonic wave heated-air drying can substantially shorten drying time.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, and the temperature for the protective gas that difference is to be filled with step (1) is
90℃.After 10 circulations (490min) of intensified by ultrasonic wave heated-air drying, the battery core water content in lithium battery is 662ppm；Traditional heat
After air-drying dry 10 circulations, battery core water content is 762ppm.
Compared with Example 1, under identical drying time, intensified by ultrasonic wave heated-air drying is compared to traditional hot air drying
It is dry, lower battery core water content (725ppm), intensified by ultrasonic wave hot air drying can be reached under lower drying temperature (20 DEG C)
It is dry to can obviously reduce drying temperature.
Embodiment 3
The present embodiment is substantially the same manner as Example 1, and difference is that the ultrasonic power of the present embodiment is 10kw, frequency
For 25kHz.
Embodiment 4
The present embodiment is substantially the same manner as Example 1, and difference is that the present embodiment air-supply heating-ultrasonication-is taken out very
Empty cycle-index is 15 times.
Embodiment 5
The present embodiment is substantially the same manner as Example 1, and difference is that the present embodiment step (1) and step (4) vacuumize
The vacuum for needing to reach is 2kPa.
Claims (10)
1. a kind of intensified by ultrasonic wave heated-air drying power lithium-ion battery device, it is characterised in that including baking oven（15）, vavuum pump
（6）And supersonic generator（11）, the vavuum pump（6）Pass through pipeline and baking oven（15）Side be connected, the baking oven
（15）With vavuum pump（6）Air bleeding valve is set gradually in the pipeline of connection（8）, vacuum valve（7）, and vavuum pump（6）Positioned at air bleeding valve
（8）, vacuum valve（7）Between, the baking oven（15）Opposite side be connected with electric heater（1）, the baking oven（15）Inside is set
There is material lifting platform（14）, the material lifting platform（14）It is provided with and is used to place lithium ion battery（9）Battery tray（10）,
The material lifting platform（14）Have vibrating disk（13）, the vibrating disk（13）Successively with ultrasonic transducer（12）, ultrasound
Wave producer（11）Connection.
2. intensified by ultrasonic wave heated-air drying power lithium-ion battery device according to claim 1, it is characterised in that described
Baking oven（15）Top is provided with thermocouple（3）, anemobiagraph（4）, pressure gauge（5）.
3. intensified by ultrasonic wave heated-air drying power lithium-ion battery device according to claim 1, it is characterised in that described
Baking oven（15）With electric heater（1）Between be provided with flow control valve（2）.
4. intensified by ultrasonic wave heated-air drying power lithium-ion battery device according to claim 1, it is characterised in that described
Ultrasonic transducer（12）One end is located at baking oven（15）Inside, the ultrasonic transducer（12）The other end and supersonic generator
（11）Connection, and the end is located at baking oven（15）It is outside.
5. the drying side of the intensified by ultrasonic wave heated-air drying power lithium-ion battery device according to claim any one of 1-4
Method, it is characterised in that comprise the following steps：
（1）By lithium ion battery to be sealed as baking oven（15）In, close flow control valve（2）, vacuum valve（7）, open true
Empty pump（6）, carry out vacuumize process；
（2）Opening electric heater（1）, open flow control valve（2）, to casing in air pressure when reaching 1.05-1.2 atmospheric pressure,
Open vacuum valve（7）And air bleeding valve（8）, it is filled with the protective gas that temperature is 40-120 DEG C and heats lithium ion battery, air-supply is pre-
Hot 5-100min；
（3）Open supersonic generator（11）, the ul-trasonic irradiation time is set as 5-100min；
（4）Close electric heater（1）, flow control valve（2）, vacuum valve（7）, open vavuum pump（6）, close supersonic generator
（11）, vacuum pressurize 10-100min；
（5）Normal temperature protective gas is filled with, forced cooling processing is carried out to battery.
6. according to the method for claim 5, it is characterised in that the step（1）The time of middle vacuumize process is 2-
10min, vacuum need to reach 0. 1-10kPa.
7. according to the method for claim 5, it is characterised in that the step（2）Middle protective gas be argon gas, nitrogen or
Carbon dioxide；Described protective gas water content is less than 100ppm；The flow velocity for the protective gas being filled with is 0.1-10m/s.
8. according to the method for claim 5, it is characterised in that the step（3）In and supersonic generator（11）Phase
The vibrating disk of connection（13）With battery tray（10）Distance be 1-15cm；The power of supersonic generator is 1-20kW, ultrasound
The frequency of ripple is 20 ~ 60kHz.
9. according to the method for claim 5, it is characterised in that step（2）-（4）For a cyclic process, cycle-index is
2-20 times.
10. according to the method for claim 5, it is characterised in that the step（5）In be filled with time of normal temperature protective gas
For 5-20min, normal temperature protective gas temperature is 15-28 DEG C, and the cooling temperature range to be reached is 30-40 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586658.9A CN107388735A (en) | 2017-07-18 | 2017-07-18 | A kind of intensified by ultrasonic wave heated-air drying power lithium-ion battery device and drying means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586658.9A CN107388735A (en) | 2017-07-18 | 2017-07-18 | A kind of intensified by ultrasonic wave heated-air drying power lithium-ion battery device and drying means |
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| Publication Number | Publication Date |
|---|---|
| CN107388735A true CN107388735A (en) | 2017-11-24 |
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ID=60339972
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| CN201710586658.9A Pending CN107388735A (en) | 2017-07-18 | 2017-07-18 | A kind of intensified by ultrasonic wave heated-air drying power lithium-ion battery device and drying means |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151457A (en) * | 2017-12-19 | 2018-06-12 | 闵卫 | A kind of lithium battery is dried in vacuo dehumidification device |
| CN108905632A (en) * | 2018-07-16 | 2018-11-30 | 安徽智泓净化科技股份有限公司 | A kind of reverse osmosis functional membrane component seal glue quick curing method |
| CN112739971A (en) * | 2020-06-05 | 2021-04-30 | 广州理文科技有限公司 | Device and method for drying lithium battery electrolyte assisted by ultrasonic waves |
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| WO2005073136A1 (en) * | 2004-01-30 | 2005-08-11 | Mirae Industrial Systems Co., Ltd. | Night-soil treatment apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108905632A (en) * | 2018-07-16 | 2018-11-30 | 安徽智泓净化科技股份有限公司 | A kind of reverse osmosis functional membrane component seal glue quick curing method |
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| CN112739971A (en) * | 2020-06-05 | 2021-04-30 | 广州理文科技有限公司 | Device and method for drying lithium battery electrolyte assisted by ultrasonic waves |
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