CN210341072U - Device for producing large-width ultrathin metal lithium belt - Google Patents
Device for producing large-width ultrathin metal lithium belt Download PDFInfo
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- CN210341072U CN210341072U CN201921357122.0U CN201921357122U CN210341072U CN 210341072 U CN210341072 U CN 210341072U CN 201921357122 U CN201921357122 U CN 201921357122U CN 210341072 U CN210341072 U CN 210341072U
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Abstract
The utility model discloses a device in production ultra-thin metal lithium area of big broad width belongs to lithium metal technical field. The device comprises a rack, a lithium material feeding device, a lithium material melting and blade coating device, a base material unwinding roller and a composite belt winding roller; the lithium material melting and blade coating device comprises a lithium material box and a blade coating lower roller, the blade coating lower roller is arranged on the rack, the lithium material box is arranged above the blade coating lower roller, a working gap for a base material to pass through is formed between the lithium material box and the blade coating lower roller, and a discharging gap for molten lithium liquid to flow out is formed in the bottom of the lithium material box; the base material unwinding roller and the composite tape winding roller are respectively arranged at two sides of the lithium material melting and blade coating device, and the base material on the base material unwinding roller is wound on the composite tape winding roller after passing through the working gap; the lithium material feeding device is arranged above the composite belt winding roller and the lithium material box. The utility model discloses simple structure, easily debugging can realize that automated production thickness is 5-100 um's ultra-thin metal lithium area, has improved work efficiency and product quality greatly.
Description
Technical Field
The utility model relates to a lithium metal technical field, concretely relates to device in production ultra-thin metal lithium area of big broad width.
Background
With the rapid development of new energy automobiles and aviation unmanned aerial vehicles, a high-energy-density material-metallic lithium is produced along with the rapid development of the new energy automobiles and the aviation unmanned aerial vehicles, but when the metallic lithium is taken as a negative electrode material and matched with a positive electrode material at present, the energy density of a lithium battery cannot be effectively improved due to high lithium content, and the energy density of the lithium battery needs to be improved, so that an ultrathin lithium negative electrode becomes a trend.
At present, the lithium produced in batch has smaller bandwidth, more complex process and thicker thickness which is basically more than 50um, and the uniformity of the surface thickness is poorer. The effective thickness of the lithium belt can be made to be 10-20um in Tianjin, but a surface lubricant needs to be added for assistance in the production process of the lithium belt, so that a layer of film is attached to the surface of the obtained metal lithium belt, and the lubricant is expensive and affects the performance of the metal lithium, so that the industrial requirement and the service performance of the ultrathin metal lithium cannot be met. In the prior art, some processes are characterized in that a lithium ingot is melted and then rolled by a casting method, a dip plating method or an evaporation method to obtain an ultrathin lithium belt, and similar methods are complex to control in the operation process and have higher operation requirements, and the final rolling process is basically indistinguishable from the production of the traditional metal lithium belt and has poor innovation. In addition, the other process is that after lithium is melted, the melted lithium is extruded and sprayed to the base material through an argon gas or an extrusion device, and the ultrathin metal lithium belt is obtained by controlling the extrusion speed and the moving speed of the base material, so that the method has higher debugging requirements on matching of the extrusion speed and the moving speed of the base material, is difficult to debug and has higher cost; in addition, since lithium metal is sprayed by being powdered, the powdered lithium is highly reactive and is easily exploded, and the risk is high, so that the possibility of industrial production is low.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model aims to provide a device in production big ultra-thin metal lithium area of broad width, the device simple structure, reasonable in design, easily debugging can realize automated production metal lithium area, has improved work efficiency and product quality greatly, has effectively solved among the prior art the problem that ultra-thin metal lithium area preparation degree of difficulty is big, with high costs and the quality is poor.
In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:
a device for producing a large-width ultrathin metal lithium belt comprises a rack, a lithium material feeding device, a lithium material melting and scraping device, a base material unwinding roller and a composite belt winding roller; the lithium material melting and blade coating device comprises a lithium material box and a blade coating lower roller, the blade coating lower roller is arranged on the rack, the lithium material box is arranged above the blade coating lower roller, a working gap for a base material to pass through is formed between the lithium material box and the blade coating lower roller, and a discharging gap for molten lithium liquid to flow out is formed in the bottom of the lithium material box; the base material unwinding roller and the composite tape winding roller are respectively arranged at two sides of the lithium material melting and blade coating device, and the base material on the base material unwinding roller passes through the working gap and then is wound on the composite tape winding roller; the lithium material feeding device is arranged above the composite belt winding roller and the lithium material box and used for feeding materials to the lithium material box.
As a preferred embodiment of the present invention, the lithium material feeding device includes a feeding driving motor, a tooth-shaped feeding roller, a feeding driven roller, and a lithium material unwinding roller; a feeding hole is formed above the lithium material box, the tooth-shaped feeding roller is arranged on one side of the feeding hole, the feeding driven roller is arranged on the other side of the feeding hole, and a feeding gap for lithium materials to pass through is formed between the tooth-shaped feeding roller and the feeding driven roller; the feeding driving motor is arranged on the rack and is in transmission connection with the tooth-shaped feeding roller; the lithium material unwinding roller is arranged above the composite winding roller, and the lithium material on the lithium material unwinding roller penetrates through the feeding gap and moves into the lithium material box under the driving of the toothed feeding roller.
As a preferred embodiment of the present invention, a heating device is provided in the lithium material box.
As a preferred embodiment of the present invention, the present invention further comprises a gap adjusting device, wherein the gap adjusting device comprises an upper wedge, a lower wedge, an adjusting bolt and a positioning bolt; the upper wedge iron and the lower wedge iron are respectively arranged on the rack, the lower wedge iron is positioned below the upper wedge iron and is abutted against the upper wedge iron, and the upper wedge iron is abutted against a central shaft of the blade coating lower roller; the adjusting bolt penetrates through the rack to be connected with the lower wedge, and the positioning bolt penetrates through the rack to be connected with a central shaft of the blade coating lower roller.
As the preferred embodiment of the present invention, the frame is provided with a dial indicator for detecting the width of the working gap.
As the utility model discloses preferred embodiment, the utility model discloses still including atmosphere protection device, atmosphere protection device sets up lithium material unreel the roller with between the compound wind-up roll of taking, atmosphere protection device's air outlet orientation the top that the substrate was located to the clearance.
As a preferred embodiment of the present invention, the circumferential surface of the lithium material box is composed of an arc surface and a plane located at the arc opening of the arc surface; the peripheral surface of the lower blade coating roller close to the working gap is a plane.
As a preferred embodiment of the present invention, the discharge gap is provided on a side of the lithium magazine close to the substrate unwinding roller.
As the utility model discloses preferred embodiment, the utility model discloses still including unreeling driving motor and rolling driving motor, unreel driving motor with the center pin transmission of substrate unreeling roller is connected, rolling driving motor with the center pin transmission of compound area wind-up roll is connected.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the device and the method of the utility model can realize the accurate control of the coating thickness and size of the liquid lithium by coating the molten metal lithium liquid on the substrate and adjusting the heating temperature of the heating device, the tape speed of the substrate and the width of the working gap, the coating effect is good, and the uniformity of the thickness is effectively improved; the device has simple structure, reasonable design and easy debugging, and can realize the automatic production of the ultrathin metal lithium belt with the thickness of 5-100 um; compared with the extrusion method in the prior art, the lithium ingot is extruded without large-pressure equipment, and the requirement on the hard function of the equipment is low in the production process, so that the bandwidth of the produced lithium is not limited; compared with the dip plating method in the prior art, a large amount of metal lithium liquid does not need to be melted in advance, the phenomenon that the substrate is on fire due to the fact that the substrate is immersed into the lithium liquid to enable the large amount of lithium liquid to gather is avoided, safety is high, the substrate does not need to be immersed into the lithium liquid, the influence of high temperature on the substrate is effectively reduced, production cost is reduced, working efficiency and product quality are greatly improved, and the problems that in the prior art, the preparation difficulty of an ultrathin metal lithium belt is large, cost is high, and quality is poor are effectively solved.
Drawings
Fig. 1 is a three-dimensional structure diagram of the device of the present invention;
FIG. 2 is a schematic structural view of a lithium material melting and blade coating device according to the present invention;
FIG. 3 is a schematic cross-sectional view of a lithium magazine and a lower blade coating roller according to the present invention;
the reference numbers illustrate: 1. a frame; 11. a first bracket; 12. a second bracket; 13. a third support; 2. a lithium material feeding device; 21. a feeding driving motor; 22. a toothed feed roll; 23. a feeding driven roller; 24. a lithium material unwinding roller; 3. a lithium material melting and blade coating device; 31. a lithium magazine; 32. coating a lower roller in a blade mode; 33. a discharge gap; 34. a feed inlet; 35. a dial indicator; 4. a substrate unwinding roller; 5. a composite tape wind-up roll; 6. upper wedge iron; 7. a lower wedge iron; 8. adjusting the bolt; 9. positioning the bolt; 10. an atmosphere protection device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the device of production ultra-thin metal lithium area of big broad width, it includes frame 1, lithium material feeding unit 2, lithium material melting blade coating device 3, substrate unreel roller 4 and composite tape wind-up roll 5. Wherein, the frame 1 is used for installing other components; the lithium material feeding device 2 is used for feeding materials to the lithium material melting and blade coating device 3; the lithium material melting and blade coating device 3 is used for melting the metal lithium material and scraping the metal lithium liquid on the substrate; the substrate unwinding roller 4 is used for providing a substrate, and the composite tape winding roller 5 is used for winding the composite tape and tensioning the substrate together with the substrate unwinding roller 4. Wherein the base material is an oxidation-resistant recyclable foil which has a certain affinity with and does not react with metallic lithium.
Specifically, the rack 1 includes a first support 11, a second support 12, and a third support 13 arranged in sequence from left to right. Referring to fig. 2, the lithium material melting and blade coating device 3 includes a lithium material box 31 for heating and melting the lithium material and a blade coating lower roller 32 for supporting the substrate, the lithium material box 31 and the blade coating lower roller 32 are horizontally disposed on the second support 12 of the machine frame 1, and the lithium material box 31 is located right above the blade coating lower roller 32, preferably, a central axis of the lithium material box 31 is parallel to a central axis of the blade coating lower roller 32 and is located on the same vertical plane. A working gap for the base material to pass through is formed between the lithium material box 31 and the lower blade coating roller 32, a discharging gap 33 for the molten lithium liquid to flow out is formed at the bottom of the lithium material box 31, and the discharging gap 33 is arranged on one side of the lithium material box 31 close to the base material unwinding roller 4; the substrate unwinding roller 4 and the composite tape winding roller 5 are respectively arranged on a first support 11 and a third support 13 which are positioned on two sides of the lithium material melting and blade coating device 3, an unwinding driving motor and a winding driving motor (not shown) are further arranged on the first support 11 and the third support 13, the unwinding driving motor is in transmission connection with a central shaft of the substrate unwinding roller 4, the winding driving motor is in transmission connection with a central shaft of the composite tape winding roller 5, and a substrate on the substrate unwinding roller 4 is wound on the composite tape winding roller 5 after passing through a working gap. The lithium material feeding device 2 is arranged above the composite tape winding roller 5 and the lithium material box 31 and used for feeding materials to the lithium material box 31. According to the above technical scheme, the utility model discloses a lithium material feeding unit 2 heats the melting with lithium material pay-off to lithium magazine 31 in, makes the metal lithium liquid of molten state direct curtain coating under the continuous melting extrusion of lithium material on the substrate, and the substrate removes under the effect of substrate unreeling roller 4 and composite band wind-up roll 5 for lithium liquid is moved the lower part of in-process by lithium magazine 31 at the substrate and is scraped the coating uniformly on the substrate, makes ultra-thin metal lithium area by the rolling of composite band wind-up roll 5 after the cooling. The utility model not only can melt the lithium material, but also can uniformly coat and scrape the molten metal lithium liquid on the surface of the substrate by the lithium material box 31 through the ingenious and reasonable design; and simultaneously, the utility model discloses a device accessible adjustment this working gap's width and then realize coating thickness's adjustment, be favorable to improving coating thickness's even uniformity. Of course, the utility model discloses not only can directly evenly coat the lithium metal liquid of molten state on the substrate and carry out strickleing of anticipating thickness to the lithium liquid of coating on the substrate through lithium magazine 31 bottom through lithium magazine 31, also can strickle off through setting up scraper or scraping roll in the bottom or the rear side of lithium magazine 31.
More specifically, the lithium material feeding device 2 includes a feeding drive motor 21, a toothed feeding roller 22, a feeding driven roller 23, and a lithium material unwinding roller 24. A feeding hole 34 is formed above the lithium material box 31, the tooth-shaped feeding roller 22 is rotatably arranged on one side of the feeding hole 34, the feeding driven roller 23 is rotatably arranged on the other side of the feeding hole 34, and a feeding gap for lithium materials to pass through is formed between the tooth-shaped feeding roller 22 and the feeding driven roller 23; the teeth on the toothed feeding roller 22 abut against the feeding driven roller 23. The feeding driving motor 21 is arranged on the second bracket 12 of the frame 1 and is in transmission connection with the tooth-shaped feeding roller 22; the lithium material unwinding roller 24 is arranged on the third support 13 of the frame 1 and is positioned above the composite winding roller, and the lithium material on the lithium material unwinding roller 24 passes through the feeding gap and moves into the lithium material box 31 under the driving of the toothed feeding roller 22. A heating device (not shown) is disposed in the lithium magazine 31, and preferably the heating device is an electric heating rod. During operation, the feeding driving motor 21 is started to drive the toothed feeding roller 22 to rotate clockwise, and teeth on the toothed feeding roller 22 drive lithium materials to move towards the feeding hole 34 of the lithium material box 31 during rotation, so that the lithium strips are continuously fed into the lithium material box 31 to be heated and melted, and therefore metal lithium liquid in a molten state can be smoothly cast onto a substrate from the discharging gap 33 of the lithium material box 31 under the continuous extrusion of the lithium liquid.
Furthermore, the utility model also comprises a gap adjusting device, the gap adjusting device comprises an upper wedge 6, a lower wedge 7, an adjusting bolt 8 and a positioning bolt 9; the upper wedge iron 6 and the lower wedge iron 7 are respectively arranged on the machine frame 1, the lower wedge iron 7 is positioned below the upper wedge iron 6 and is abutted against the upper wedge iron 6, and the upper wedge iron 6 is abutted against the central shaft of the blade coating lower roller 32; an adjusting bolt 8 penetrates through the machine frame 1 to be connected with the lower wedge iron 7, and a positioning bolt 9 penetrates through the machine frame 1 to be connected with a central shaft of the lower blade coating roller 32. By loosening the adjusting bolt 8 and the positioning bolt 9, the lower wedge 7 rotates along the clockwise direction or the anticlockwise direction, the upper wedge 6 is jacked up or lowered, the blade coating lower roller 32 is adjusted in the height direction, and therefore the width of a working gap is adjusted. Preferably, two dial indicators 35 for detecting the width of the working gap between the lithium magazine 31 and the doctor blade lower roller 32 are arranged on the second support 12 of the machine frame 1, which is beneficial to accurately adjusting the width of the working gap, i.e. effectively ensuring the doctor blade thickness.
Further, the utility model discloses still including atmosphere protection device 10, atmosphere protection device 10 sets up on the third support 13 of frame 1 and is located lithium material unreel roller 24 and compound between taking wind-up roll 5, and atmosphere protection device 10's air outlet is towards the working gap and is located the top of substrate, and atmosphere protection device 10's pipeline setting can play the air-cooled effect to the lithium liquid on the compound area through atmosphere protection device 10 in third support 13. Preferably, the protective gas of the atmosphere protecting device 10 contains Ar, F2、N2、CO、CO2、O2And He.
Specifically, as shown in fig. 3, the lithium material box 31 is made of copper, and the surface of the lithium material box 31 is made of stainless steel, so as to ensure the stability of the lithium metal liquid and the uniformity of the thermal field distribution. The circumferential surface of the lithium material box 31 consists of an arc surface and a plane positioned at the arc opening of the arc surface; the radial section of the lithium magazine 31 is preferably semicircular or arcuate; the peripheral surface of the lower blade coating roller 32 adjacent to the working gap is flat. During installation, the plane of the lithium material box 31 faces upwards so as to facilitate installation of the tooth-shaped feeding roller 22 and the feeding driven roller 23, the cambered surface of the lithium material box 31 faces downwards and is tangent to the plane of the blade lower roller 32, so that the radial distance between the upper part of the blade lower roller 32 and the lower part of the lithium material box 31 is reduced from large to small, and further sufficient heat is kept at the bottom of the lithium material box 31 by molten lithium liquid to maintain the molten state of lithium metal.
The use process of the device is as follows: firstly, a base material on a base material unreeling roller 4 penetrates through a working gap of a lithium material melting and blade coating device 3 and is tightly wound on a composite belt reeling roller 5, then an upper wedge iron 6 and a lower wedge iron 7 on two sides of the lithium material melting and blade coating device 3 are adjusted through a positioning bolt 9 and an adjusting bolt 8, the width of the working gap (namely the distance between a blade coating lower roller 32 and a lithium material box 31) is the thickness of an expected ultrathin metal lithium belt, then the lithium material box 31 is heated to a preset temperature through a heating device, the lithium material is enabled to be molten and has certain fluidity, the lithium material on the lithium material unreeling roller 24 is stretched into a feeding gap, then a feeding driving motor 21 is started, a tooth-shaped feeding roller 22 and a feeding driven roller 23 are matched to continuously feed the lithium material into the lithium material box 31 for melting, the lithium material is continuously molten in the lithium material box 31, and the lithium liquid in the lithium material box 31 is extruded under gravity along with feeding, the molten metal lithium liquid is continuously cast onto the substrate from a discharge gap 33 at the bottom of the lithium material box 31, the composite belt winding roller 5 starts to wind under the effect of a winding driving motor, so that the molten metal lithium liquid on the substrate is continuously scraped by the bottom of the lithium material box 31 and uniformly attached to the surface of the substrate in the process that the substrate passes through a working gap, and finally, the ultrathin metal lithium belt with the uniform surface can be obtained after the substrate is cooled by the atmosphere protection device 10.
The utility model also provides a method for producing big ultra-thin metal lithium area of broad width, it is using as above the device produce, specifically include following step:
a. the width of the working gap is adjusted according to the thickness of the base material and the blade coating thickness, the base material on the base material unreeling roller 4 is wound on the composite tape reeling roller 5 after passing through the working gap, and the base material is tensioned; adjusting bolts 8 and positioning bolts 9 in two sides of a lithium material melting and blade coating device 3 to enable an upper wedge iron 6 and a lower wedge iron 7 to move relatively so as to enable a blade coating lower roller 32 to move upwards until the blade coating lower roller 32 and a lithium material box 31 clamp the base material, namely the width of a working gap is equal to the thickness of the base material, resetting dial indicators 35 on two sides to zero, observing the indication number of the dial indicators 35 by adjusting the adjusting bolts 8 and the positioning bolts 9 to enable the width of the working gap to be equal to the sum of the thickness of the base material and the coating thickness; the lithium material on the lithium material unwinding roller 24 passes through the space between the tooth-shaped feeding roller 22 and the feeding driven roller 23 and extends into a feeding hole 34 of the lithium material box 31;
b. in an environment with the humidity of-70 to-30 dew point, starting a heating device to heat a lithium material box 31 to 190-400 ℃, starting a feeding driving motor 21 to drive a tooth-shaped feeding roller 22, feeding a lithium belt into the lithium material box 31 and forming molten metal lithium liquid, and continuously casting the molten lithium liquid onto a base material from a discharge gap 33 at the bottom of the lithium material box 31 along with continuous entering and extrusion of the lithium material;
c. and starting the substrate unwinding roller 4 and the composite belt winding roller 5 to enable the substrate to be tensioned and move in the direction of the composite belt winding roller 5 in a reciprocating mode, wherein lithium liquid on the substrate is strickled off by the bottom of the lithium material box 31 and uniformly attached to the surface of the substrate in the moving process, and is wound after being air-cooled by the atmosphere protection device 10 to obtain the ultrathin metal lithium belt with the thickness of 5-100um and the single-side coated with lithium.
To sum up, the device and the method of the utility model can realize the precise control of the coating thickness and size of the liquid lithium by coating the molten metal lithium liquid on the substrate and adjusting the heating temperature of the heating device, the tape speed of the substrate and the width of the working gap, the coating effect is good, and the uniformity of the thickness is effectively improved; the device has the advantages of simple structure, reasonable design and easy debugging, can realize automatic production of the metal lithium belt, reduces the production cost, greatly improves the working efficiency and the product quality, and effectively solves the problems of high difficulty, high cost and poor quality of the preparation of the ultrathin metal lithium belt in the prior art.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (9)
1. The utility model provides a device of production large width ultra-thin metal lithium area which characterized in that: comprises a frame, a lithium material feeding device, a lithium material melting and blade coating device, a substrate unwinding roller and a composite belt winding roller; the lithium material melting and blade coating device comprises a lithium material box and a blade coating lower roller, the blade coating lower roller is arranged on the rack, the lithium material box is arranged above the blade coating lower roller, a working gap for a base material to pass through is formed between the lithium material box and the blade coating lower roller, and a discharging gap for molten lithium liquid to flow out is formed in the bottom of the lithium material box; the base material unwinding roller and the composite tape winding roller are respectively arranged at two sides of the lithium material melting and blade coating device, and the base material on the base material unwinding roller passes through the working gap and then is wound on the composite tape winding roller; the lithium material feeding device is arranged above the composite belt winding roller and the lithium material box and used for feeding materials to the lithium material box.
2. The apparatus of claim 1, wherein the apparatus is configured to produce a wide width ultra-thin strip of lithium metal: the lithium material feeding device comprises a feeding driving motor, a tooth-shaped feeding roller, a feeding driven roller and a lithium material unwinding roller; a feeding hole is formed above the lithium material box, the tooth-shaped feeding roller is arranged on one side of the feeding hole, the feeding driven roller is arranged on the other side of the feeding hole, and a feeding gap for lithium materials to pass through is formed between the tooth-shaped feeding roller and the feeding driven roller; the feeding driving motor is arranged on the rack and is in transmission connection with the tooth-shaped feeding roller; the lithium material unwinding roller is arranged above the composite winding roller, and the lithium material on the lithium material unwinding roller penetrates through the feeding gap and moves into the lithium material box under the driving of the toothed feeding roller.
3. The apparatus of claim 1 or 2, wherein the apparatus is configured to produce a wide ultra-thin strip of lithium metal: and a heating device is arranged in the lithium material box.
4. The apparatus of claim 1 or 2, wherein the apparatus is configured to produce a wide ultra-thin strip of lithium metal: the device also comprises a gap adjusting device, wherein the gap adjusting device comprises an upper wedge iron, a lower wedge iron, an adjusting bolt and a positioning bolt; the upper wedge iron and the lower wedge iron are respectively arranged on the rack, the lower wedge iron is positioned below the upper wedge iron and is abutted against the upper wedge iron, and the upper wedge iron is abutted against a central shaft of the blade coating lower roller; the adjusting bolt penetrates through the rack to be connected with the lower wedge, and the positioning bolt penetrates through the rack to be connected with a central shaft of the blade coating lower roller.
5. The apparatus of claim 4, wherein the apparatus further comprises: and a dial indicator for detecting the width of the working gap is arranged on the frame.
6. The apparatus of claim 2, wherein the apparatus further comprises: the lithium material winding and unwinding device is characterized by further comprising an atmosphere protection device, wherein the atmosphere protection device is arranged between the lithium material unwinding roller and the composite belt winding roller, and an air outlet of the atmosphere protection device faces the working gap and is located above the base material.
7. The apparatus of claim 1 or 2, wherein the apparatus is configured to produce a wide ultra-thin strip of lithium metal: the circumferential surface of the lithium material box consists of an arc surface and a plane positioned at the arc opening of the arc surface; the peripheral surface of the lower blade coating roller close to the working gap is a plane.
8. The apparatus of claim 1 or 2, wherein the apparatus is configured to produce a wide ultra-thin strip of lithium metal: the discharge gap is arranged on one side of the lithium material box close to the base material unwinding roller.
9. The apparatus of claim 1 or 2, wherein the apparatus is configured to produce a wide ultra-thin strip of lithium metal: the composite belt winding roller is characterized by further comprising an unwinding driving motor and a winding driving motor, wherein the unwinding driving motor is in transmission connection with a central shaft of the substrate unwinding roller, and the winding driving motor is in transmission connection with a central shaft of the composite belt winding roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921357122.0U CN210341072U (en) | 2019-08-20 | 2019-08-20 | Device for producing large-width ultrathin metal lithium belt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921357122.0U CN210341072U (en) | 2019-08-20 | 2019-08-20 | Device for producing large-width ultrathin metal lithium belt |
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| CN210341072U true CN210341072U (en) | 2020-04-17 |
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| CN201921357122.0U Active CN210341072U (en) | 2019-08-20 | 2019-08-20 | Device for producing large-width ultrathin metal lithium belt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112410784A (en) * | 2019-08-20 | 2021-02-26 | 北京卫蓝新能源科技有限公司 | Device and method for producing large-width ultrathin metal lithium belt |
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2019
- 2019-08-20 CN CN201921357122.0U patent/CN210341072U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112410784A (en) * | 2019-08-20 | 2021-02-26 | 北京卫蓝新能源科技有限公司 | Device and method for producing large-width ultrathin metal lithium belt |
| CN112410784B (en) * | 2019-08-20 | 2023-12-08 | 天齐卫蓝固锂新材料(深圳)有限公司 | Device and method for producing large-width ultrathin metal lithium belt |
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Effective date of registration: 20230419 Address after: 518052 Qianhai Shimao Financial Center Phase II 407-18, No. 3040 Xinghai Avenue, Nanshan Street, Qianhai Shenzhen Hong Kong Cooperation Zone, Shenzhen, Guangdong Province Patentee after: Tianqi Weilan Solid Lithium New Materials (Shenzhen) Co.,Ltd. Address before: 102488 No.1, Qihang West Street, Doudian Town, Fangshan District, Beijing Patentee before: BEIJING WELION NEW ENERGY TECHNOLOGY Co.,Ltd. |