CN207282598U - A kind of lithium ion battery separator extracts drying device - Google Patents
A kind of lithium ion battery separator extracts drying device Download PDFInfo
- Publication number
- CN207282598U CN207282598U CN201721357999.0U CN201721357999U CN207282598U CN 207282598 U CN207282598 U CN 207282598U CN 201721357999 U CN201721357999 U CN 201721357999U CN 207282598 U CN207282598 U CN 207282598U
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- China
- Prior art keywords
- dryer roll
- air
- lithium ion
- ion battery
- battery separator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a kind of lithium ion battery separator to extract drying device, including the first dryer roll, the second dryer roll, the 3rd dryer roll, air knife and transition roller in drying box；First dryer roll, the second dryer roll and the 3rd dryer roll are set gradually along the conveying direction of membrane, and the first dryer roll and the 3rd dryer roll are arranged on the lower section of membrane, and the second dryer roll is arranged on the top of membrane；The air knife includes air inlet, cutter hub and air passage, and the air inlet is arranged at the top of cutter hub, and the air passage is connected with air inlet, the air passage is set in fold-line-shaped, and bending place is fillet, the air outlet in air passage is set in handstand taper, and is arranged with arc convex on the inner conical surface of the air outlet；The air knife is correspondingly provided with directly over first dryer roll and the 3rd dryer roll, the air knife is correspondingly provided with immediately below second dryer roll；The transition roller is arranged on the exit of drying box.
Description
Technical field
Wet method lithium battery diaphragm technical field is the utility model is related to, particularly a kind of lithium ion battery separator extraction drying
Device.
Background technology
Lithium ion battery is a kind of secondary cell (rechargeable battery), it relies primarily on lithium ion and moves between a positive electrode and a negative electrode
Move and carry out work.In charge and discharge process, lithium ion embedded and deintercalation back and forth between two electrodes；During charging, lithium ion is from just
Pole deintercalation, is embedded in anode, anode is in rich lithium state by electrolyte；It is then opposite during electric discharge.Battery is generally using first containing lithium
The material of element is the representative of modern high performance battery as electrode.
In the structure of lithium ion battery, membrane is one of crucial interior layer assembly.For lithium battery series, due to electrolysis
Liquid is organic solvent system, thus needs the diaphragm material of organic solvent-resistant, the general polyolefin for using high-strength thin-film
Perforated membrane.
Drying after being extracted now for wet method lithium battery diaphragm heats volatilization dichloromethane only with dryer roll, actual raw
In production, it is possible that making the actual volatilization faster or slower of dichloromethane because the priority of film surface attaching dryer roll is inconsistent, also may be used
After occurring that membrane goes out dryer roll, the dichloromethane of film surface does not vapor away completely, and both of these case can all make film surface produce water
Flaw is printed, so that product appearance is bad.
Utility model content
To solve problems of the prior art, the purpose of this utility model is to provide a kind of lithium ion battery separator extraction
Take drying device, the present apparatus is using the dry method of dryer roll and air knife double dry, after accelerating lithium ion battery separator extraction
Rate of drying, and lithium ion battery separator film surface is not produced the flaws such as watermark, effectively improve the exterior quality of product.
To achieve the above object, the technical solution adopted in the utility model is：A kind of lithium ion battery separator extracts drying
Device, including the first dryer roll, the second dryer roll, the 3rd dryer roll, air knife and transition roller in drying box；Described first
Dryer roll, the second dryer roll and the 3rd dryer roll are set gradually along the conveying direction of membrane, and the first dryer roll and the 3rd drying
Roller is arranged on the lower section of membrane, and the second dryer roll is arranged on the top of membrane；The air knife includes air inlet, cutter hub and air passage, described
Air inlet is arranged at the top of cutter hub, and the air passage is connected with air inlet, and the air passage is set in fold-line-shaped, and bending place is fillet,
The air outlet in air passage is set in handstand taper, and is arranged with arc convex on the inner conical surface of the air outlet；Described first is dry
The air knife is correspondingly provided with directly over dry roller and the 3rd dryer roll, the gas is correspondingly provided with immediately below second dryer roll
Knife；The transition roller is arranged on the exit of drying box.
As further improvement of the utility model, first dryer roll, the second dryer roll, the 3rd dryer roll with it is corresponding
The distance between described air knife is 3-10cm.
As further improvement of the utility model, the both ends of institute's air knife are threaded with the spiral shell vertically set
Line screw.
As further improvement of the utility model, one end on the threaded screw rod close to dryer roll is equipped with limited block.
As further improvement of the utility model, the top outside the drying box is equipped with exhaust fan.
As further improvement of the utility model, the fore side of the drying box is equipped with removable form.
The beneficial effects of the utility model are：
1st, the utility model is by the first dryer roll, the second dryer roll, the 3rd dryer roll and the dry method of air knife double dry,
The rate of drying after lithium ion battery separator extraction is accelerated, and lithium ion battery separator film surface is not produced the flaws such as watermark,
Effectively improve the exterior quality of product.
2nd, the air passage of fold-line-shaped can realize shaping to gases at high pressure in air knife, further increase wind pressure, bending place
Fillet to produce cushioning effect when gases at high pressure pass through, will not form sinuous flow, ensure that wind speed is unified, improve blowout air-flow
Stability and homogeneity, enable membrane being attached on dryer roll evenly, the protrusion on air outlet inner conical surface can increase wind
Pressure and raising outlet air efficiency, accelerate the volatilization of membrane surface dichloromethane.
3rd, the distance between the first dryer roll, the second dryer roll, the 3rd dryer roll and corresponding air knife are 3-10cm, can be made
Drying effect is optimal.
4th, the distance between air knife and corresponding dryer roll are adjusted by rotating threaded screw rod, it is easy to adjust.
5th, the limited block on threaded screw rod can prevent air knife is too low to clip film surface and dry roll surface.
6th, the top outside drying box is provided with exhaust fan, can be dense by adjusting dichloromethane inside blast velocity control drying box
Degree.
7th, the removable form arranged on drying box fore side can conveniently be watched and operate hot wind indoor equipment and membrane, favorably
In maintenance and detection.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment；
Fig. 2 is the structure diagram of the utility model embodiment air knife cross section in the width direction；
Reference numeral：1- drying boxes, the first dryer rolls of 2-, the second dryer rolls of 3-, the 3rd dryer rolls of 4-, 5- air knives, 5a- into
Air port, 5b- cutter hubs, 5c- air passages, 5d- is raised, and 6- transition rollers, 7- threaded screw rods, 8- limited blocks, 9- exhaust fans, 10- is removable to be regarded
Window, 11- membranes.
Embodiment
The embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment
In one of the embodiments, as depicted in figs. 1 and 2, a kind of lithium ion battery separator extraction drying device, including
The first dryer roll 2, the second dryer roll 3, the 3rd dryer roll 4, air knife 5 and transition roller 6 in drying box 1；Described first is dry
Dry roller 2, the second dryer roll 3 and the 3rd dryer roll 4 are set gradually along the conveying direction of membrane 11, and the first dryer roll 2 and the 3rd
Dryer roll 4 is arranged on the lower section of membrane 11, and the second 3 rollers of drying are arranged on the top of membrane 11；The air knife 5 includes air inlet 5a, knife
Body 5b and air passage 5c, the air inlet 5a are arranged at the top of cutter hub 5b, and the air passage 5c is connected with air inlet 5a, and the air passage 5c is in
Fold-line-shaped is set, and bending place is fillet, and the air outlet in air passage is set in handstand taper, and right on the inner conical surface of the air outlet
Title is equipped with arc convex 5d；The surface of first dryer roll, 2 and the 3rd dryer roll 4 is correspondingly provided with the air knife 5, and described
The underface of two dryer rolls 3 is correspondingly provided with the air knife 5；The transition roller 6 is arranged on the exit of drying box 1.
Lithium ion battery separator 11 is from after extraction tank enters drying box 1, successively by the first dryer roll 2, the second dryer roll 3
It is dried with the 3rd dryer roll 4, the first dryer roll 2 and the air knife 5 on 4 top of the 3rd dryer roll while drying, second is dry
The air knife 5 of dry 3 lower part of roller purges film surface by the air inlet 5a heat air deliveries at the top of cutter hub 5b, and air knife 5 adjusts wind
Speed improves the attaching situation of film surface and dryer roll, also adjusts wind-warm syndrome control dichloromethane rate of volatilization, the air passage 5c of fold-line-shaped
It can realize the shaping to gases at high pressure, further increase wind pressure, the fillet of bending place to produce when gases at high pressure pass through slow
Punching acts on, and will not form sinuous flow, ensure that wind speed is unified, improves the stability and homogeneity of blowout air-flow, enable membrane 11
Being attached on dryer roll evenly, the raised 5d on air outlet inner conical surface can increase wind pressure and improve outlet air efficiency, accelerate
The volatilization of 11 surface dichloromethane of membrane, lithium ion battery separator 11 after drying leave drying box 1 through transition roller 6, actual
Two transition rollers 6 can be set in production, and 6 water flowing of transition roller is heated, and drying efficiency is further improved, so that lithium ion battery
The film surface of membrane 11 does not produce the flaws such as watermark, effectively improves product quality.
In another embodiment, first dryer roll 2, the second dryer roll 3, the 3rd dryer roll 4 with it is corresponding described in
The distance between air knife 5 is 3cm.
In another embodiment, first dryer roll 2, the second dryer roll 3, the 3rd dryer roll 4 with it is corresponding described in
The distance between air knife 5 is 5cm.
In another embodiment, first dryer roll 2, the second dryer roll 3, the 3rd dryer roll 4 with it is corresponding described in
The distance between air knife 5 is 10cm.
When the distance between the first dryer roll 2, the second dryer roll 3, the 3rd dryer roll 4 and corresponding air knife 5 are 3-10cm
When drying effect it is optimal.
In another embodiment, the both ends of the air knife 5 are threaded with the screw thread silk vertically set
Bar 7.Threaded screw rod 7 can be specifically arranged on crossbeam, is led in the interior setting of drying box 1 and the corresponding crossbeam in 5 position of air knife
Cross rotation threaded screw rod 7 and adjust the distance between air knife 5 and corresponding dryer roll, it is easy to adjust.
In another embodiment, one end on the threaded screw rod 7 close to dryer roll is equipped with limited block 8.Limited block 8
It can prevent air knife 5 is too low to clip film surface and dry roll surface.
In another embodiment, the top outside the drying box 1 is equipped with exhaust fan 9.Exhaust fan 9 is set to pass through tune
1 inside concentration dichloromethane of blast velocity control drying box is saved, the dichloromethane of volatilization leaves drying box 1 through exhaust fan 9.
In another embodiment, the fore side of the drying box 1 is equipped with removable form 10.Can by removable form 10
To facilitate equipment and membrane 11 in viewing and operation drying box 1, be conducive to repair and detect.
Embodiment described above only expresses specific embodiment of the present utility model, its description is more specific and detailed,
But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.
Claims (6)
1. a kind of lithium ion battery separator extracts drying device, it is characterised in that including the first dryer roll in drying box,
Second dryer roll, the 3rd dryer roll, air knife and transition roller；First dryer roll, the second dryer roll and the 3rd dryer roll along every
The conveying direction of film is set gradually, and the first dryer roll and the 3rd dryer roll are arranged on the lower section of membrane, the second dryer roll be arranged on every
The top of film；The air knife includes air inlet, cutter hub and air passage, and the air inlet is arranged at the top of cutter hub, the air passage and inlet air
Mouth connection, the air passage are set in fold-line-shaped, and bending place is fillet, and the air outlet in air passage is set in handstand taper, and described
Arc convex is arranged with the inner conical surface of air outlet；Institute is correspondingly provided with directly over first dryer roll and the 3rd dryer roll
Air knife is stated, the air knife is correspondingly provided with immediately below second dryer roll；The transition roller is arranged on the exit of drying box.
2. lithium ion battery separator according to claim 1 extracts drying device, it is characterised in that first drying
The distance between roller, the second dryer roll, the 3rd dryer roll and the corresponding air knife are 3-10cm.
3. lithium ion battery separator according to claim 1 extracts drying device, it is characterised in that the both ends of the air knife
It is threaded with the threaded screw rod vertically set.
4. lithium ion battery separator according to claim 3 extracts drying device, it is characterised in that on the threaded screw rod
Limited block is equipped with close to one end of dryer roll.
5. lithium ion battery separator according to claim 1 extracts drying device, it is characterised in that outside the drying box
Top is equipped with exhaust fan.
6. lithium ion battery separator according to claim 1 extracts drying device, the fore side of the drying box is equipped with can
Tear form open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357999.0U CN207282598U (en) | 2017-10-20 | 2017-10-20 | A kind of lithium ion battery separator extracts drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357999.0U CN207282598U (en) | 2017-10-20 | 2017-10-20 | A kind of lithium ion battery separator extracts drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207282598U true CN207282598U (en) | 2018-04-27 |
Family
ID=61979752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721357999.0U Expired - Fee Related CN207282598U (en) | 2017-10-20 | 2017-10-20 | A kind of lithium ion battery separator extracts drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207282598U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539743A (en) * | 2018-12-29 | 2019-03-29 | 无锡启成新能源有限公司 | A kind of novel lithium ion battery diaphragm drying box |
| CN109631544A (en) * | 2018-12-10 | 2019-04-16 | 浙江大学台州研究院 | Energy-saving synthetic leather drying equipment based on double duct air knives |
| CN112838186A (en) * | 2021-01-22 | 2021-05-25 | 薛宇晨 | Baking equipment for lithium manganate battery anode material |
| CN113809471A (en) * | 2021-09-18 | 2021-12-17 | 广西聚邦能源有限公司 | Drying box for lithium ion battery diaphragm |
-
2017
- 2017-10-20 CN CN201721357999.0U patent/CN207282598U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631544A (en) * | 2018-12-10 | 2019-04-16 | 浙江大学台州研究院 | Energy-saving synthetic leather drying equipment based on double duct air knives |
| CN109631544B (en) * | 2018-12-10 | 2020-11-06 | 浙江大学台州研究院 | Energy-saving synthetic leather drying equipment based on two ducted air knives |
| CN109539743A (en) * | 2018-12-29 | 2019-03-29 | 无锡启成新能源有限公司 | A kind of novel lithium ion battery diaphragm drying box |
| CN112838186A (en) * | 2021-01-22 | 2021-05-25 | 薛宇晨 | Baking equipment for lithium manganate battery anode material |
| CN113809471A (en) * | 2021-09-18 | 2021-12-17 | 广西聚邦能源有限公司 | Drying box for lithium ion battery diaphragm |
| CN113809471B (en) * | 2021-09-18 | 2023-07-14 | 广西聚邦能源有限公司 | Drying box for lithium ion battery diaphragm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180427 Termination date: 20211020 |