CN214917272U - Lithium ion battery pole piece coating machine - Google Patents
Lithium ion battery pole piece coating machine Download PDFInfo
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- CN214917272U CN214917272U CN202022805938.4U CN202022805938U CN214917272U CN 214917272 U CN214917272 U CN 214917272U CN 202022805938 U CN202022805938 U CN 202022805938U CN 214917272 U CN214917272 U CN 214917272U
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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 provides a lithium ion battery pole piece coating machine, lithium ion battery pole piece coating machine includes unwinding mechanism, actuating mechanism, two spraying mechanism, controlling means, stoving mechanism. The unwinding mechanism is used for unwinding and conveying the foil, and the driving mechanism drives the foil to move. Each spraying mechanism is provided with a spray head, the two spray heads are arranged oppositely, a gap for the foil to pass through is formed between the two spray heads, the control device controls any spray head to spray one surface of the foil, or the control device controls the two spray heads to spray two opposite surfaces of the foil simultaneously. And the sprayed foil enters a drying mechanism to be heated and dried. The lithium ion battery pole piece coating machine can realize single-side coating or double-side simultaneous coating, and greatly improves the coating efficiency and the production capacity. And an automatic electronic spraying mode is adopted, so that the coating weight can be stably controlled, the consistency of the coating weight and the coating thickness is ensured, and the problems of thinning and edge bulging of the coating edge are effectively solved.
Description
Technical Field
The utility model belongs to the technical field of lithium ion battery production, more specifically say, relate to a lithium ion battery pole piece coating machine.
Background
In the production process of the lithium ion battery, the coating of the lithium ion battery pole piece generally adopts a mode of firstly coating one surface of the pole piece and then coating the other surface of the pole piece for the second time. Although a double-side coating machine is also used in the market at present, the double-side coating machine is generally extrusion coating or coating roller, two sets of independent spraying mechanisms are needed for single-side coating and double-side coating respectively, namely, the single-side coating and the double-side coating need separate operation. The existing coating mode seriously influences the coating productivity and the actual production process, has low production efficiency, and generally has the problems of unstable coating, inconsistent coating weight and thickness, thinning of the coating edge of the battery pole piece, edge bulging and the like.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a lithium ion battery pole piece coating machine to coating efficiency who exists among the solution prior art is low, the coating is unstable, coating weight, thickness are inconsistent, and battery pole piece coating edge skives, technical problem such as limit is bloated.
In order to achieve the above object, the utility model adopts the following technical scheme: the lithium ion battery pole piece coating machine comprises an unwinding mechanism, a driving mechanism and a drying mechanism, wherein the unwinding mechanism is used for unwinding and conveying foil, the driving mechanism drives the foil to move, and the drying mechanism is used for heating and drying the sprayed foil; the lithium ion battery pole piece coating machine further comprises two spraying mechanisms and a control device connected with the spraying mechanisms, each spraying mechanism is provided with a spray head, the spray heads of the two spraying mechanisms are arranged oppositely, a gap for foil to pass is formed between the two spray heads, the control device controls any spray head to spray one side of the foil, or controls the two spray heads to spray two opposite sides of the foil simultaneously.
By adopting the technical scheme, single-side coating or double-side coating can be selectively carried out, so that the coating efficiency and the production capacity are greatly improved.
Optionally, the spraying mechanism comprises a storage stirring tank, a screw pump and a backpressure tank which are sequentially communicated, the storage stirring tank is used for storing slurry and is provided with a stirring device, the screw pump is used for conveying the slurry, and the backpressure tank is communicated with the spray head.
By adopting the technical scheme, the slurry meeting the viscosity requirement can be quantitatively and stably provided for the spray head,
optionally, the backpressure tank is provided with a liquid level detector and a pressure regulating device for regulating pressure according to the detection result of the liquid level detector.
Through adopting above-mentioned technical scheme, can monitor constantly and adjust the liquid level and the pressure of the interior liquid of backpressure jar to provide the thick liquids of stable pressure for the shower nozzle.
Optionally, the spray mechanism includes one or more filters in communication between the progressive cavity pump and the back pressure tank.
By adopting the technical scheme, the spraying slurry can be subjected to one or more filtering processes, so that the slurry meets the requirements.
Optionally, the spraying mechanism includes a defoaming barrel that communicates between the screw pump and the back pressure tank.
By adopting the technical scheme, bubbles in the slurry can be eliminated, and bubble points are prevented from being formed on the surface of the foil during coating.
Optionally, the lithium ion battery pole piece coating machine includes an infrared heating lamp tube, and the infrared heating lamp tube is located between the spraying mechanism and the drying mechanism to preheat the coated foil.
Through adopting above-mentioned technical scheme, can carry out preliminary stoving and not the adhesive roller to the foil after the coating, infrared heating lamp tubular construction is simple, easy control, and is with low costs, efficient.
Optionally, the infrared heating lamps are divided into two groups, and the two groups of infrared heating lamps are distributed oppositely, so that the foil passes through between the two groups of infrared heating lamps to preheat two opposite sides of the foil respectively.
Through adopting above-mentioned technical scheme, can preheat the two sides that the foil is relative simultaneously, improve drying efficiency.
Optionally, the lithium ion battery pole piece coater comprises a plasma cleaning mechanism, and the plasma cleaning mechanism is arranged beside the spraying mechanism to remove foreign matters on the surface of the foil before spraying and remove static electricity.
By adopting the technical scheme, foreign matters on the surface of the foil can be removed, static electricity can also be removed, and the probability of bad problems such as belt breakage caused by the foreign matters and particles in the coating process is reduced.
Optionally, the control device includes a computer and a control panel, the computer is electrically connected to the control panel and used for setting the spraying parameters, and the control panel is electrically connected to the spray head to control the action of the spray head and transmit the signal to the computer.
By adopting the technical scheme, the automatic spraying can be realized, the coating amount can be stably controlled, the stability and consistency of coating are ensured, and the problems of thin coating edge and edge bulging are effectively solved.
Optionally, the nozzle has a plurality of nozzles, the nozzles are divided into two groups, one group is a single row of nozzles, the other group is a double row of nozzles, and each row of nozzles is electrically connected with the control panel and independently operates.
By adopting the technical scheme, each row of spray holes of the spray head can independently control the action, so that more accurate spraying can be realized, and the stability and consistency of coating are ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a lithium ion battery pole piece coating machine provided by an embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides a spraying mechanism's of lithium ion battery pole piece coating machine structural schematic.
Wherein, in the figures, the respective reference numerals:
10-an unwinding mechanism; 11-an unwinding turret; 111-reel; 12-an automatic splicing device; 20-a drive mechanism; 21-a drive roller; 22-a rubber roller; 30-a spraying mechanism; 31-a spray head; 32-a spray chamber; 33-storage agitator tank; 34-a screw pump; 35-a back pressure tank; 36 a filter; 37-defoaming bucket; 40-a control device; 41-a computer; 42-a control panel; 50-a drying mechanism; 60-double roller magnet filter; 70-foil thickness gauge; 80-a deviation correcting device; 90-plasma cleaning mechanism; 100-infrared heating lamp tube; 110-NMP exhaust mechanism; 120-film thickness detector; 130-a flattening device; 140-NMP recovery system; 150-Heat recovery System.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "bottom," "inner," "outer," and the like are used in the orientation or positional relationship shown in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered as limiting the present invention.
In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, a lithium ion battery pole piece coater provided by an embodiment of the present invention will now be described. The lithium ion battery pole piece coating machine comprises an unreeling mechanism 10, a driving mechanism 20, two spraying mechanisms 30, a control device 40 and a drying mechanism 50.
The unwinding mechanism 10 is used for unwinding and conveying foil materials, so that the foil materials for manufacturing the lithium ion battery pole pieces are orderly stored and conveyed according to a preset path. The unwinding mechanism 10 includes an unwinding turret 11, and A, B two reels 111 for changing reels are provided in the unwinding turret 11. The unwinding mechanism 10 further comprises an automatic splicing device 12, and foil butt joint is performed through the automatic splicing device 12 when the coil is changed and the tape is broken.
The lithium ion battery pole piece coating machine further comprises a double-roller magnet filter 60, a foil side thickness gauge 70 and a deviation correcting device 80, wherein the double-roller magnet filter 60, the foil thickness gauge 70 and the deviation correcting device 80 are sequentially arranged on a conveying path of foil and are all located between the unwinding mechanism 10 and the driving mechanism 20. Wherein the double-roller magnetic filter 60 is used for removing scrap iron on the surface of the foil, thereby preventing short circuit and fire of the battery cell after coating. The foil thickness gauge is used for measuring the thickness of the foil. The deviation correcting device 80 is used to prevent the foil from deviating from a predetermined position.
The drive mechanism 20 is provided on the transport path of the foil and drives the foil to move. The drive mechanism 20 comprises a drive roller 21, the drive roller 21 providing drive for the foil.
The driving mechanism 20 further comprises a rubber roller 22, the rubber roller 22 and the driving roller 21 are oppositely arranged, the foil penetrates through the space between the rubber roller 22 and the driving roller 21, and the rubber roller 22 compresses the foil and the driving roller 21 to ensure that the foil can move under the driving of the driving roller 21.
The lithium ion battery pole piece coating machine further comprises a plasma cleaning mechanism 90, the plasma cleaning mechanism 90 is arranged on the conveying path of the foil and located beside the spraying mechanism 30, and the plasma cleaning mechanism 90 is used for removing foreign matters on the surface of the foil before spraying and removing static electricity, so that the foreign matters and the static electricity on the foil are prevented from causing subsequent poor coating and belt breakage.
Each spraying mechanism 30 has a spray head 31, and the spray head 31 is an electronic spray head capable of automatic spraying and is installed in a spray chamber 32. The nozzle 31 has a plurality of nozzles divided into two groups, one group is a single-row nozzle, the other group is a double-row nozzle, and each row of nozzles controls spraying independently through respective control lines. The nozzles 31 of the two spraying mechanisms 30 are arranged oppositely, a gap for the foil to pass through is formed between the two nozzles 31, the foil passes through the gap between the nozzles 31 of the two spraying mechanisms 30, the control device 40 controls any one of the nozzles 31 to spray one surface of the foil, or the control device 40 controls the two nozzles 31 to spray two opposite surfaces of the foil simultaneously. Therefore, in the production process, one of the nozzles 31 can be selectively controlled to work to realize single-sided spraying, two of the nozzles 31 can be selectively controlled to work simultaneously to realize double-sided spraying, the single-sided spraying mode and the double-sided spraying mode can be switched simply and conveniently, two sets of spraying mechanisms are not needed in double-sided spraying, any hardware facilities are not needed to be added or changed, and the coating efficiency and the production capacity are greatly improved.
The spraying mechanism 30 further comprises a storage stirring tank 33, a screw pump 34 and a back pressure tank 35 which are sequentially communicated. Store agitator tank 33 and be used for thick liquids to store and be equipped with agitating unit, agitating unit can be according to actual demand adjustment stirring speed. The stirring device for stirring the slurry is designed in the storage stirring tank 33, so that the viscosity of the slurry can meet the requirement. The screw pump 34 is used to deliver the slurry quantitatively. The back pressure tank 35 communicates with the ejection head 31 through a connection line and a slurry transfer line to supply the ejection head 31 with a stable slurry. The back pressure tank 35 is provided with a liquid level detector and a pressure regulating device for regulating pressure according to the detection result of the liquid level detector, namely, the back pressure tank 35 has a pressure regulating function. Specifically, the detector can detect the amount of the slurry in the back pressure tank 35 and feed the amount of the slurry back to the control part of the back pressure tank 35, so as to ensure that the pressure in the back pressure tank is kept consistent and cannot change along with the decrease of the slurry in the back pressure tank, and the liquid level and the pressure of the liquid in the back pressure tank 35 can be monitored and adjusted, so that the slurry with stable pressure can be provided for the spray head 31.
The spray mechanism 30 further includes one or more filters 36 in series, the filters 36 being connected between the screw pump 34 and the back pressure tank 35 so that the sprayed slurry can be subjected to one or more filtration processes to render the slurry satisfactory.
In the embodiment of the present invention, the number of the filters 36 is two, one of the filters is a rotary wall-scraping type slurry filter, and the rotary wall-scraping type slurry filter mainly functions to filter slurry; the other is a secondary depth filter, the secondary depth filter is mainly used for carrying out secondary depth filtration on the slurry, and the slurry meets the coating requirement through two filtration processes.
The spraying mechanism 30 further comprises a defoaming barrel 37, the defoaming barrel 37 is communicated between the screw pump 34 and the back pressure tank 35, and the defoaming barrel 37 is mainly used for eliminating bubbles in the slurry and preventing bubble points from being formed on lithium ion battery pole pieces made of foil during coating.
As shown in fig. 2, the control device 40 is connected to the spraying mechanism 30, the control device 40 further includes a computer 41 and a control panel 42, the computer 41 is electrically connected to the control panel 42 and is used for setting spraying parameters, such as thickness and width of the spraying, which can be set on the computer 41. The computer 41 controls the amount of coating by mainly adjusting signals such as voltage and pulse. The control panel 42 is connected to the nozzle 31 to control the operation of the nozzle 31 and transmits signals to the computer 41 through signal lines, for example, when parameters such as the weight and width of the coating are changed, the signals are fed back to the computer, and the computer adjusts parameters such as the spraying amount and the nozzle width according to the feedback condition. The rows of nozzles of the nozzle 31 are electrically connected to the control panel 42, respectively, to realize independent operation. The computer 41 controls the spraying amount of the spray head 31 through the set spraying voltage and the pulse signal, and the automatic spraying type coating mode ensures the stability and consistency of coating, can automatically, stably and accurately control the coating amount, ensures the consistency of coating weight and thickness, and can also effectively prevent the problems of coating edge thinning and edge bulging.
When the spraying mechanism 30 works, under the action of the screw pump 34, slurry passes through the screw pump 34, the rotary wall-scraping type slurry filter, the secondary depth filter and the defoaming barrel 37 in sequence from the storage stirring tank 33 and is conveyed to the back pressure tank 35, and finally is conveyed to the spray head 31 through the slurry conveying pipeline, and the control device 40 accurately controls the spray head 31 to spray foil.
The lithium ion battery pole piece coating machine further comprises an infrared heating lamp tube 100, and the infrared heating lamp tube 100 is located between the spraying mechanism 30 and the drying mechanism 50 to perform primary preheating and drying on the sprayed foil. It can be understood that when the mode of double-sided simultaneous coating is adopted, a wet film is formed on the surface of the coated foil due to the influence of gravity, so that the coated foil is easy to stick to a roller, and pre-drying is required within a short time. Therefore, the infrared heating lamp tube 100 is arranged for preliminary pre-drying, so that the foil is not stuck to the roller. The structure of the infrared heating lamp tube 100 is also simple, easy to operate and control, low in cost and high in efficiency. Particularly, in the embodiment of the present invention, the infrared heating lamp tubes 100 are divided into two groups, and the two groups of infrared heating lamp tubes 100 are distributed relatively, so that the foil passes through the two groups of infrared heating lamp tubes 100, and the foil is preheated on two opposite sides, respectively, to improve the drying efficiency. In the actual production process, the temperatures and the number of the lamps to be turned on of the two groups of infrared heating lamps 100 can be set according to the actual process requirements.
The lithium ion battery pole piece coating machine further comprises an NMP (N-Methyl pyrrolidone) exhaust mechanism 110, wherein the NMP exhaust mechanism 110 is arranged beside the infrared heating lamp tube 100 and is used for detecting and exhausting the concentration of NMP. The embodiment of the utility model provides an in, the quantity of NMP exhaust mechanism 110 is two, and two NMP exhaust mechanisms 110 are respectively located two sets of infrared heating fluorescent tube 100's side correspondingly to carry out NMP concentration detection and exhaust to the foil two sides after the coating respectively.
The lithium ion battery pole piece coating machine further comprises a film thickness detector 120, the film thickness detector 120 is arranged on a conveying path of the foil and located between the infrared heating lamp tube 100 and the drying mechanism 50, and the film thickness detector 120 is mainly used for detecting the thickness of the coated foil.
The lithium ion battery pole piece coating machine further comprises a flattening device 130, wherein the flattening device 130 is located beside the film thickness detector 120 and is mainly used for flattening the foil, so that undesirable phenomena such as belt breakage and the like caused by the wrinkle of the foil are prevented. The bottom of the flattening device 130 is provided with two rollers, which are an external screw thread roller and an internal screw thread roller, respectively, and the flattening device 130 mainly depends on the two rollers to eliminate the wrinkle phenomenon.
The drying mechanism 50 is an oven which is communicated with a heating transmission pipeline and is mainly used for drying the sprayed foil. After being preheated by the infrared heating lamp tube 100, the sprayed foil is firstly detected in thickness by the film thickness detector 120 and flattened by the flattening device 130, and then enters the drying mechanism 50 for heating and drying. In addition, the drying mechanism 50 is further communicated with an NMP (N-Methyl pyrrolidone) recovery system 140 and a heat recovery system 150, the NMP recovery system 140 is used for recovering NMP in the drying mechanism 50, and the heat recovery system 150 is used for recovering waste heat in the drying mechanism 50, so as to recycle heat in the drying mechanism 50.
The lithium ion battery pole piece coating machine further comprises a detection mechanism and a winding system, and the foil is dried, then subjected to quality detection by the detection mechanism such as a CCD (charge coupled device) detection system and finally stored by the winding system.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a lithium ion battery pole piece coating machine, includes unwinding mechanism, actuating mechanism and stoving mechanism, unwinding mechanism is used for unreeling of foil and carries, actuating mechanism drive foil removes, stoving mechanism is used for heating the drying to foil after the spraying, a serial communication port, lithium ion battery pole piece coating machine include two spraying mechanism and with the controlling means that spraying mechanism connects, each spraying mechanism has the shower nozzle, two spraying mechanism the shower nozzle sets up relatively, two have the clearance that supplies the foil to pass between the shower nozzle, controlling means controls arbitrary the shower nozzle carries out the spraying to one of them face of foil, perhaps controlling means controls two the shower nozzle carries out the spraying to two sides that the foil is relative simultaneously.
2. The lithium ion battery pole piece coating machine of claim 1, wherein the spraying mechanism comprises a storage stirring tank, a screw pump and a back pressure tank which are sequentially communicated, the storage stirring tank is used for slurry storage and is provided with a stirring device, the screw pump is used for conveying slurry, and the back pressure tank is communicated with the spray head.
3. The lithium ion battery pole piece coating machine of claim 2, wherein the back pressure tank is provided with a liquid level detector and a pressure regulating device for regulating pressure according to the detection result of the liquid level detector.
4. The lithium ion battery pole piece coater of claim 2, wherein the spray mechanism comprises one or more filters in communication between the screw pump and the back pressure tank.
5. The lithium ion battery pole piece coater of claim 2, wherein the spraying mechanism comprises a defoaming barrel, and the defoaming barrel is communicated between the screw pump and the back pressure tank.
6. The lithium ion battery pole piece coater of claim 1, wherein the lithium ion battery pole piece coater comprises an infrared heating lamp tube, and the infrared heating lamp tube is positioned between the spraying mechanism and the drying mechanism to preheat the sprayed foil.
7. The lithium ion battery pole piece coater of claim 6, wherein the infrared heating lamps are divided into two groups, and the two groups of infrared heating lamps are oppositely arranged, so that the foil passes through between the two groups of infrared heating lamps to preheat two opposite sides of the foil respectively.
8. The lithium ion battery pole piece coater of claim 1, wherein the lithium ion battery pole piece coater comprises a plasma cleaning mechanism, and the plasma cleaning mechanism is arranged beside the spraying mechanism to remove foreign matters on the surface of the foil before spraying and remove static electricity.
9. The lithium ion battery pole piece coater of any one of claims 1-8, wherein the control device comprises a computer and a control panel, the computer is electrically connected with the control panel and used for setting spraying parameters, and the control panel is electrically connected with the spray head to control the action of the spray head and transmit signals to the computer.
10. The lithium ion battery pole piece coater of claim 9, wherein the nozzle head has a plurality of nozzles, the nozzles are divided into two groups, one group is a single row of nozzles, the other group is a double row of nozzles, and each row of nozzles is electrically connected to the control panel and operates independently.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022805938.4U CN214917272U (en) | 2020-11-26 | 2020-11-26 | Lithium ion battery pole piece coating machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022805938.4U CN214917272U (en) | 2020-11-26 | 2020-11-26 | Lithium ion battery pole piece coating machine |
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| CN214917272U true CN214917272U (en) | 2021-11-30 |
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| CN202022805938.4U Active CN214917272U (en) | 2020-11-26 | 2020-11-26 | Lithium ion battery pole piece coating machine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114300642A (en) * | 2021-12-30 | 2022-04-08 | 孚能科技(赣州)股份有限公司 | Preparation system and preparation method of battery pole piece |
| CN114367414A (en) * | 2022-01-14 | 2022-04-19 | 江阴市乐事康工业设计有限公司 | Coating and heating process and equipment for lithium battery pole piece |
| CN114789103A (en) * | 2022-03-29 | 2022-07-26 | 宁德卓高新材料科技有限公司 | Online detection method for spraying thickness of diaphragm coating and coating system thereof |
| CN114864864A (en) * | 2022-03-04 | 2022-08-05 | 远景动力技术(江苏)有限公司 | Wire-clamping structure electrode, device for preparing wire-clamping structure electrode and application |
| CN114950864A (en) * | 2022-06-17 | 2022-08-30 | 蔚来汽车科技(安徽)有限公司 | Battery pole piece coating machine and method for coating battery pole piece |
| CN115430590A (en) * | 2022-09-07 | 2022-12-06 | 江苏风驰碳基新材料研究院有限公司 | Energy-efficient type lithium-ion battery pole piece drying equipment |
| CN115475733A (en) * | 2022-09-13 | 2022-12-16 | 深圳市海目星激光智能装备股份有限公司 | Opposite coating device |
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2020
- 2020-11-26 CN CN202022805938.4U patent/CN214917272U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114300642A (en) * | 2021-12-30 | 2022-04-08 | 孚能科技(赣州)股份有限公司 | Preparation system and preparation method of battery pole piece |
| CN114300642B (en) * | 2021-12-30 | 2023-05-23 | 孚能科技(赣州)股份有限公司 | Preparation system and preparation method of battery pole piece |
| CN114367414A (en) * | 2022-01-14 | 2022-04-19 | 江阴市乐事康工业设计有限公司 | Coating and heating process and equipment for lithium battery pole piece |
| CN114864864A (en) * | 2022-03-04 | 2022-08-05 | 远景动力技术(江苏)有限公司 | Wire-clamping structure electrode, device for preparing wire-clamping structure electrode and application |
| CN114789103A (en) * | 2022-03-29 | 2022-07-26 | 宁德卓高新材料科技有限公司 | Online detection method for spraying thickness of diaphragm coating and coating system thereof |
| CN114950864A (en) * | 2022-06-17 | 2022-08-30 | 蔚来汽车科技(安徽)有限公司 | Battery pole piece coating machine and method for coating battery pole piece |
| CN115430590A (en) * | 2022-09-07 | 2022-12-06 | 江苏风驰碳基新材料研究院有限公司 | Energy-efficient type lithium-ion battery pole piece drying equipment |
| CN115475733A (en) * | 2022-09-13 | 2022-12-16 | 深圳市海目星激光智能装备股份有限公司 | Opposite coating device |
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