CN118002423B - Lithium ion battery membrane electrode coating device and method - Google Patents
Lithium ion battery membrane electrode coating device and method Download PDFInfo
- Publication number
- CN118002423B CN118002423B CN202410418193.6A CN202410418193A CN118002423B CN 118002423 B CN118002423 B CN 118002423B CN 202410418193 A CN202410418193 A CN 202410418193A CN 118002423 B CN118002423 B CN 118002423B
- Authority
- CN
- China
- Prior art keywords
- coating
- drying
- electrode
- air
- electrode film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 145
- 239000011248 coating agent Substances 0.000 title claims abstract description 141
- 239000012528 membrane Substances 0.000 title claims abstract description 32
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 108
- 238000004804 winding Methods 0.000 claims abstract description 17
- 239000003973 paint Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims 1
- 238000003860 storage Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
-
- 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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a lithium ion battery membrane electrode coating device and a method, and relates to the technical field of batteries, wherein the coating device comprises an unreeling roller wound with an electrode membrane and a wind-up roller symmetrically arranged with the unreeling roller along the vertical direction; the first drying module and the second drying module are symmetrically arranged between the unreeling roller and the reeling roller along the horizontal direction and are used for carrying out drying and curing treatment on electrode coating coated on the electrode film; one side of the first drying module is provided with a coating mechanism, and the coating mechanism is used for coating electrode paint on the front surface and the back surface of the electrode film; the second drying module is used for drying and curing the coating surface on the other side of the electrode film and finally winding the electrode film on the winding roller.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a device and a method for coating a membrane electrode of a lithium ion battery.
Background
A lithium ion battery membrane electrode coating apparatus is a device for uniformly coating electrode materials (such as positive or negative electrode materials) on a separator or other substrates during the manufacturing process of a lithium ion battery. This device is typically based on a coating process based on the investigation of the physical properties of a fluid, applying one or more layers of a liquid onto a substrate, typically a flexible film or backing paper. The applied liquid coating is then subjected to a drying or curing process to form a film layer having a specific function.
One of the features of lithium ion battery pole piece coating is double sided single layer coating, which means that the electrode material needs to be uniformly coated on both sides of the separator or other substrate during the manufacturing process. The double-sided coating mode is beneficial to improving the performance and the safety of the battery and ensuring that the battery can work stably and efficiently.
In the prior art, in order to avoid that electrode coating adheres to a conveying roller, an electrode film is coated in a single-sided coating mode, one side of the electrode film is dried, solidified and wound on a winding roller after being coated, and then the winding roller is reversed to output the electrode film again for coating, so that the process is complicated.
Disclosure of Invention
The invention aims to provide a lithium ion battery membrane electrode coating device and a method thereof, which solve the following technical problems:
the electrode film is coated by adopting a single-sided coating mode, one side is dried, solidified and wound on the winding roller after being coated, and then the winding roller is reversed to output the electrode film for coating again, so that the process is complicated.
The aim of the invention can be achieved by the following technical scheme:
the lithium ion battery membrane electrode coating device comprises an unreeling roller, a winding roller and a winding roller, wherein the unreeling roller is wound with an electrode membrane, and the winding roller is symmetrically arranged with the unreeling roller along the vertical direction;
The first drying module and the second drying module are symmetrically arranged between the unreeling roller and the reeling roller along the horizontal direction and are used for carrying out drying and curing treatment on electrode coating coated on the electrode film;
And one side of the first drying module is provided with a coating mechanism, and the coating mechanism is used for coating electrode paint on the front surface and the back surface of the electrode film.
Preferably, the first drying module and the second drying module comprise drying cylinders, and a feed inlet is formed in one side of each drying cylinder;
Wherein, set up air supply mechanism in the stoving section of thick bamboo to be arranged in carrying hot-blast to the stoving section of thick bamboo.
Preferably, limit rings are symmetrically arranged in the drying cylinder in a sliding manner, and a plurality of groups of guide wheels are rotationally arranged on one side, close to the two groups of limit rings, in a circumferential array;
The two groups of limiting rings are connected with the adjusting module and used for adjusting the distance between the two groups of limiting rings.
Preferably, the air supply mechanism comprises a first air duct arranged in the drying cylinder, two sides of the first air duct are in sliding connection with each other to form a second air duct, a plurality of groups of first air grooves are formed in the cylinder wall of the first air duct in a circumferential array, and second air grooves which are in one-to-one correspondence with the first air grooves are formed in the second air duct;
The air conditioner is characterized in that a first air pipe is further arranged outside the second air cylinder, a positioning disc is fixedly arranged in the limiting ring and rotatably arranged on the first air pipe, the other end of the first air pipe is connected with a second air pipe, and the second air pipe is connected with an air heater.
Preferably, the inner wall of the first air pipe is provided with a plurality of groups of first clamping grooves in a circumferential array, a third air pipe is fixedly arranged at one end of the second air pipe, which faces the first air pipe, and the third air pipe is inserted into the first air pipe in a sliding manner;
and the third air pipe is fixedly provided with a first clamping seat which is in sliding clamping with the first clamping groove.
Preferably, the two sides of the drying cylinder are symmetrically provided with toothed rings, the center end of each toothed ring is fixedly provided with a limiting disc, and the limiting discs are fixedly arranged on the second air pipe;
Wherein, both sides one side that the spacing ring kept away from mutually is circumference array rotation and lays a plurality of groups and the fixed telescopic link of guide pulley, and the telescopic link other end slides and peg graft in the sleeve, and a plurality of groups of second draw-in grooves are offered to the sleeve inner wall for circumference array, and corresponding fixed arrangement has the second cassette with second draw-in groove slip joint on the telescopic link, and the sleeve is kept away from the fixed gear of arranging with the ring gear meshing of one end of telescopic link.
Preferably, the inner wall of the first air duct is provided with a plurality of groups of third clamping grooves in a circumferential array, and the second air duct is correspondingly and fixedly provided with third clamping seats which are in sliding clamping with the third clamping grooves.
Preferably, the two sides of the feeding hole are symmetrically and slidingly provided with sealing plates, and one end, close to the sealing plates, of each of the two sides is fixed with a limiting ring;
wherein, upper guide post and lower guide post are laid to the symmetry on the closing plate.
Preferably, the coating mechanism comprises an upper coating box body and a lower coating box body which are arranged on two sides of the electrode film, wherein a plurality of groups of first coating rollers are arranged in the upper coating box body when the upper coating box body is in an array, a plurality of groups of second coating rollers are arranged in the lower coating box body when the lower coating box body is in an array, and the electrode film is transmitted between the first coating rollers and the second coating rollers.
The coating method of the lithium ion battery membrane electrode coating device comprises the following steps:
the electrode film is output by an unreeling roller;
the coating mechanism coats the electrode coating on the front surface and the back surface of the electrode film;
the first drying module is used for drying and solidifying the coating surface on one side of the electrode film, and then the coating surface is input into the second drying module;
the second drying module is used for drying and curing the coating surface on the other side of the electrode film;
and winding the electrode film after the double-sided drying and curing on a winding roller.
The invention has the beneficial effects that:
According to the invention, after being output by the unreeling roller, the electrode film is coated on the front and back sides of the electrode film through a coating mechanism, then the electrode film is input into a first drying module, one side coating surface of the electrode film is dried and cured through the first drying module, then the electrode film is input into a second drying module, the other side coating surface of the electrode film is dried and cured through the second drying module, and finally the electrode film is reeled on the reeling roller.
According to the invention, the cylindrical drying cylinder is arranged, so that on one hand, the heat preservation effect can be improved, the heat dissipation is avoided to be too fast, on the other hand, the conveying time of the electrode film in the drying cylinder can be prolonged, the drying and curing efficiency is improved, and compared with the linear drying mechanism in the prior art, the drying cylinder occupies a smaller space.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of a membrane electrode coating apparatus for a lithium ion battery according to the present invention;
FIG. 2 is a schematic diagram of a drying cylinder in a lithium ion battery membrane electrode coating device according to the present invention;
FIG. 3 is a schematic diagram of the structure of electrode film transport in a lithium ion battery film electrode coating device according to the present invention;
FIG. 4 is a schematic structural view of a wind tunnel in a lithium ion battery membrane electrode coating device according to the present invention;
FIG. 5 is a schematic view of the structure of a stop collar in a lithium ion battery membrane electrode coating apparatus according to the present invention;
FIG. 6 is a schematic view of a guide wheel structure in a lithium ion battery membrane electrode coating device according to the present invention;
FIG. 7 is a schematic view of the structure of a coating mechanism in a lithium ion battery membrane electrode coating apparatus according to the present invention;
FIG. 8 is a schematic diagram of a flow channel in a lithium ion battery membrane electrode coating apparatus according to the present invention;
FIG. 9 is a schematic view of the structure of a gear in a lithium ion battery membrane electrode coating apparatus according to the present invention;
Fig. 10 is a schematic structural view of an air duct in a lithium ion battery membrane electrode coating device according to the present invention.
In the figure: 1. an electrode film; 2. a storage bin; 3. a first drying module; 4. a second drying module; 5. a first air duct; 6. a limiting ring; 101. an unreeling roller; 102. a wind-up roll; 103. a first guide roller; 104. a second guide roller; 201. an infusion tube; 202. a first motor; 203. a second motor; 204. coating a box body; 205. a lower coating box body; 206. a discharge port; 207. a guide wheel plate; 208. a scraper; 209. a discharge gap; 210. a first coating roller; 211. a second coating roller; 301. a feed inlet; 302. a sealing plate; 303. an upper guide post; 304. a lower guide post; 305. a second air duct; 306. a drying cylinder; 401. a support frame; 402. a screw; 403. a nut; 404. a push rod; 405. a base; 501. a first duct; 502. a second air duct; 503. a second duct; 504. a third clamping groove; 505. a third clamping seat; 601. a guide wheel; 602. a positioning plate; 603. a toothed ring; 604. a gear; 605. a sleeve; 606. a telescopic rod; 607. a second clamping seat; 608. a limiting disc; 609. a first air duct; 610. a third air duct; 611. a first clamping seat; 612. a second clamping groove; 613. a first clamping groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, the invention relates to a lithium ion battery membrane electrode coating device, which comprises an unreeling roller 101 around which an electrode membrane 1 is reeled, and a wind-up roller 102 which is symmetrically arranged with the unreeling roller 101 along the vertical direction; specifically, the unreeling roller 101 and the reeling roller 102 are connected with a servo motor, so as to be used for transmitting the electrode film 1 output from the unreeling roller 101 to the reeling roller 102;
The first drying module 3 and the second drying module 4 are symmetrically distributed between the unreeling roller 101 and the reeling roller 102 along the horizontal direction, and the first drying module 3 and the second drying module 4 are used for carrying out drying and curing treatment on the electrode coating coated on the electrode film 1; in this embodiment, the first drying module 3 and the second drying module 4 have the same structure;
One side of the first drying module 3 is provided with a coating mechanism which is used for coating electrode paint on the front surface and the back surface of the electrode film 1;
It may be noted that, electrode film 1 is output by unreeling roller 101, firstly, electrode coating is coated on the front and back sides of electrode film 1 through the coating mechanism, secondly electrode film 1 is input to first drying module 3, and one side coated surface of electrode film 1 is dried and cured through first drying module 3, then electrode film 1 is input to second drying module 4, and the other side coated surface of electrode film 1 is dried and cured through second drying module 4, and finally, the electrode film 1 is reeled on wind-up roller 102.
In addition, referring to fig. 1 and 3, a first guide roller 103 is rotatably disposed at one side of the bottom of the unreeling roller 101 for guiding and conveying the electrode film 1 outputted to the first drying module 3 in a horizontal state, and a second guide roller 104 is rotatably disposed on the reeling roller 102 for winding the electrode film 1 outputted from the second drying module 4 on the reeling roller 102 in a vertical direction, so as to improve the conveying stability of the electrode film 1.
Example 2
On the basis of embodiment 1, referring to fig. 2 and 4, each of the first drying module 3 and the second drying module 4 includes a drying drum 306, and a feed inlet 301 is formed on one side of the drying drum 306, wherein an air supply mechanism is disposed in the drying drum 306 for delivering hot air into the drying drum 306; specifically, the electrode film 1 is input into the drying cylinder 306 through the feed inlet 301, the air supply mechanism synchronously conveys heated air into the drying cylinder 306 to dry the electrode coating, and the dried electrode film 1 is output from the feed inlet 301.
It can be appreciated that, in this embodiment, by setting the cylindrical drying drum 306, on one hand, the heat insulation effect can be improved, and the too fast heat dissipation is avoided, on the other hand, the conveying time of the electrode film 1 in the drying drum 306 can be prolonged, and the drying and curing efficiency is improved, and compared with the linear drying mechanism in the prior art, the drying drum 306 of this embodiment occupies a smaller space.
Referring to fig. 5-6, the drying cylinder 306 is symmetrically and slidably provided with limiting rings 6, and one side, close to the two sets of limiting rings 6, of the drying cylinder is provided with a plurality of sets of guide wheels 601 in a circumferential array in a rotating manner, wherein the two sets of limiting rings 6 are connected with an adjusting module for adjusting the distance between the two sets of limiting rings 6; it may be noted that, when the electrode film 1 is conveyed to the drying drum 306, edges of both sides of the electrode film 1 are overlapped on each group of guide wheels 601, so that when the electrode film 1 is conveyed in the drying drum 306, only edge portions are in contact with the guide wheels 601, and an intermediate coating surface of the electrode film 1 is not in contact with the guide wheels 601, so that after coating is completed, the edge portions are cut; meanwhile, for the electrode films 1 with different widths, the distance between the two groups of limiting rings 6 can be adjusted through the adjusting module, and the application range is wider.
Referring to fig. 2, the adjusting module includes a screw 402, the screw 402 is rotatably disposed between two sets of support frames 401, the support frames 401 are fixed on a base 405, threads on two sides of the screw 402 are opposite in rotation direction, nuts 403 are sleeved on threads on two sides of the screw, and the nuts 403 are fixed with the limiting rings 6 through push rods 404; specifically, a handle or a servo motor can be arranged at the end of the screw 402, and by rotating the screw 402, the nut 403 can push the stop collar 6 to move through the push rod 404 in the process of moving on the screw 402.
Referring to fig. 4 and 6, the air supply mechanism includes a first air duct 5 disposed in the drying drum 306, the first air duct 5 and the drying drum 306 are coaxially disposed, the first air duct 5 is a hollow structure with two open ends, two sides of the first air duct 5 are slidably inserted and disposed with a second air duct 502, one end of the second air duct 502 is communicated with the first air duct 5, the other end is a closed structure, a plurality of groups of first air grooves 501 are disposed on the wall of the first air duct 5 in a circumferential array, second air grooves 503 corresponding to the first air grooves 501 one by one are disposed on the second air duct 502, a first air duct 609 is disposed outside the second air duct 502, a positioning disc 602 is fixedly disposed in the limiting ring 6, the positioning disc 602 is rotatably disposed on the first air duct 609, the other end of the first air duct 609 is connected with the second air duct 305, and the second air duct 305 is connected with a hot air blower; it may be noted that the air heater conveys the heated air to the first air duct 5 and the second air duct 502 through the second air duct 305 and the first air duct 609, and then discharges the heated air to the drying drum 306 through the first air duct 501 and the second air duct 503, so as to perform the drying treatment on the electrode film 1 conveyed to the drying drum 306.
In addition, referring to fig. 10, the second air duct 305 is rotatably disposed on the support frame 401, the inner wall of the first air duct 609 is provided with a plurality of groups of first clamping grooves 613 in a circumferential array, the second air duct 305 is fixedly disposed at one end of the second air duct 609 facing the first air duct 610, the third air duct 610 is slidably inserted into the first air duct 609, and a first clamping seat 611 slidably clamped with the first clamping groove 613 is fixedly disposed on the third air duct 610; it should be noted that, the air outlet pipe of the air heater is rotationally connected with the second air pipe 305, and the hot air output by the air heater sequentially passes through the air outlet pipe, the second air pipe 305, the third air pipe 610 and the first air pipe 609 to enter the first air duct 5 and the second air duct 502.
Referring to fig. 5 and 9, in order to improve the drying efficiency, in this embodiment, toothed rings 603 are symmetrically arranged on two sides of a drying cylinder 306, a limiting disc 608 is fixedly arranged at the center end of the toothed rings 603, the limiting disc 608 is fixedly arranged on a second air duct 305, wherein a plurality of groups of telescopic rods 606 fixed with guide wheels 601 are rotationally arranged on one side, far away from the two side limiting rings 6, of the telescopic rods 606 in a circumferential array, the other ends of the telescopic rods 606 are slidably inserted into sleeves 605, a plurality of groups of second clamping grooves 612 are circumferentially arranged on the inner walls of the sleeves 605 in a circumferential array, second clamping seats 607 are correspondingly fixedly arranged on the telescopic rods 606 and slidably clamped with the second clamping grooves 612, and gears 604 meshed with the toothed rings 603 are fixedly arranged on one ends, far away from the telescopic rods 606, of the sleeves 605; it may be noted that, when the electrode film 1 is conveyed along each guide wheel 601, the guide wheels 601 can be driven to rotate based on the friction force, the guide wheels 601 can drive the gears 604 to rotate through the telescopic rods 606 and the sleeves 605, the gears 604 drive the second air pipes 305 to rotate through meshing with the toothed rings 603, and the second air pipes 305 can drive the second air pipes 502 to rotate through the third air pipes 610 and the first air pipes 609;
Referring to fig. 8, in addition, a plurality of groups of third clamping grooves 504 are formed in the inner wall of the first air duct 5 in a circumferential array, and third clamping seats 505 which are slidably clamped with the third clamping grooves 504 are correspondingly and fixedly arranged on the second air duct 502; specifically, by arranging the third clamping groove 504 and the third clamping seat 505, the second air duct 502 can synchronously drive the first air duct 5 to rotate when rotating, and the phenomenon that the air grooves of the third clamping groove and the third clamping seat are misplaced is avoided.
It should be further noted that, in this embodiment, when the spacing between the limiting rings 6 on both sides is adjusted, the second air duct 502 may be synchronously driven to stretch out and draw back in the first air duct 5, so that the groove length of the air groove 503 is adapted to the width of the electrode film 1.
Further, two sides of the feed inlet 301 are symmetrically and slidingly provided with sealing plates 302, and one end, close to the sealing plates 302, of each side is fixed with a limiting ring 6, wherein an upper guide post 303 and a lower guide post 304 are symmetrically arranged on the sealing plates 302; it can be noted that, in this embodiment, the two side limiting rings 6 can synchronously drive the sealing plate 302 to slide at the feeding port 301 during the interval adjustment for the electrode films 1 with different widths, so as to adjust the opening range of the feeding port 301, reduce the diffusion efficiency of the hot air from the feeding port 301, and improve the heat insulation effect of the drying cylinder 306, and meanwhile, the upper guide post 303 and the lower guide post 304 can improve the input and output stability of the electrode film 1;
In this embodiment, when the electrode film 1 is conveyed toward the first drying module 3, it is input along the upper guide post 303 and finally output along the lower guide post 304; when the electrode film 1 is conveyed toward the second drying module 4, it is also input along the upper guide post 303 and finally output along the lower guide post 304, whereby the effect of double-sided drying and curing can be achieved.
Referring to fig. 1 and 7, the coating mechanism includes an upper coating box 204 and a lower coating box 205 disposed on two sides of the electrode film 1, wherein a plurality of groups of first coating rollers 210 are disposed when the upper coating box 204 is in an array, a plurality of groups of second coating rollers 211 are disposed when the lower coating box 205 is in an array, and the electrode film 1 is transferred between the first coating rollers 210 and the second coating rollers 211;
Specifically, each group of the first coating roller 210 and the second coating roller 211 are respectively connected with a chain through a chain wheel in a transmission way, a first motor 202 for driving the first coating roller 210 to rotate is arranged at the outer side of the upper coating box 204, a second motor 203 for driving the second coating roller 211 to rotate is arranged at the outer side of the lower coating box 205, and in this embodiment, the rotation directions of the first coating roller 210 and the second coating roller 211 are opposite to the conveying direction of the electrode film 1;
The upper coating box 204 is provided with a storage box 2 for storing electrode coating, the bottom of the storage box 2 is provided with a plurality of groups of discharge ports 206 with the same axial length as the first coating roller 210, one side of the bottom of the discharge ports 206 is provided with a guide wheel plate 207, the guide wheel plate 207 is in sliding fit with the surface of the first coating roller 210, the other side of the discharge ports 206 is provided with a scraping plate 208, and a discharge gap 209 is formed between the scraping plate 208 and the surface of the first coating roller 210; it should be noted that, the electrode coating is stored in the storage box 2, and the coating is sequentially discharged to the surface of the first coating roller 210 through the discharge opening 206 and the discharge gap 209 under the action of gravity, and the electrode coating can be coated on the upper surface of the electrode film 1 as the first coating roller 210 rotates;
In this embodiment, the storage tank 2 is connected to the lower coating tank 205 through a transfer pipe 201 for transferring the electrode coating material into the lower coating tank 205, and the lower half of the second coating roller 211 is immersed in the electrode coating material; specifically, as the second coating roller 211 rotates, the second coating roller 211 attaches the electrode coating material to the surface of the electrode film 1.
In addition, a liquid level detector may be disposed in the second coating roller 211, and a solenoid valve may be disposed in the fluid pipe 201, and when the liquid level detector detects that the electrode coating height is lower than a preset value, the solenoid valve may be opened to apply the electrode coating to the lower coating tank 205.
A coating method of a lithium ion battery membrane electrode comprises the following steps:
s1, outputting the electrode film 1 by an unreeling roller 101;
S2, coating the electrode coating on the front side and the back side of the electrode film 1 by the coating mechanism;
s3, the first drying module 3 carries out drying and solidification on the coating surface on one side of the electrode film 1, and then the coating surface is input into the second drying module 4;
S4, the second drying module 4 carries out drying and curing on the coating surface on the other side of the electrode film 1;
S5, winding the electrode film 1 subjected to double-sided drying and curing on a winding roller 102.
In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation and a specific orientation configuration and operation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (7)
1. The lithium ion battery membrane electrode coating device is characterized by comprising an unreeling roller (101) wound with an electrode membrane (1), and a winding roller (102) symmetrically arranged with the unreeling roller (101) along the vertical direction;
The first drying module (3) and the second drying module (4) are symmetrically arranged between the unreeling roller (101) and the reeling roller (102) along the horizontal direction, and the first drying module (3) and the second drying module (4) are used for carrying out drying and curing treatment on electrode coating coated on the electrode film (1);
a coating mechanism is arranged on one side of the first drying module (3) and used for coating electrode paint on the front side and the back side of the electrode film (1);
the first drying module (3) and the second drying module (4) comprise a drying cylinder (306), and a feed inlet (301) is formed in one side of the drying cylinder (306);
An air supply mechanism is arranged in the drying cylinder (306) and used for conveying hot air into the drying cylinder (306), the electrode film (1) is input into the drying cylinder (306) through a feed port (301), the air supply mechanism synchronously conveys heated air into the drying cylinder (306) so as to dry the electrode coating, and the dried electrode film (1) is output from the feed port (301);
Limiting rings (6) are symmetrically and slidingly arranged in the drying cylinder (306), and a plurality of groups of guide wheels (601) are rotationally arranged on one side, close to the two groups of limiting rings (6), in a circumferential array;
wherein, the two groups of limiting rings (6) are connected with the adjusting module and used for adjusting the distance between the two groups of limiting rings (6);
the air supply mechanism comprises a first air duct (5) arranged in the drying cylinder (306), two sides of the first air duct (5) are slidably inserted and connected with second air ducts (502), a plurality of groups of first air grooves (501) are formed in the cylinder wall of the first air duct (5) in a circumferential array, and second air grooves (503) which are in one-to-one correspondence with the first air grooves (501) are formed in the second air duct (502);
Wherein, second dryer (502) outside still is equipped with first tuber pipe (609), fixedly lays positioning disk (602) in spacing ring (6), and positioning disk (602) rotate and arrange on first tuber pipe (609), and first tuber pipe (609) other end is connected with second tuber pipe (305), and the air heater is connected to second tuber pipe (305).
2. The lithium ion battery membrane electrode coating device according to claim 1, wherein a plurality of groups of first clamping grooves (613) are formed in the inner wall of the first air pipe (609) in a circumferential array, a third air pipe (610) is fixedly arranged at one end of the second air pipe (305) facing the first air pipe (609), and the third air pipe (610) is in sliding connection with the first air pipe (609);
Wherein, the third air pipe (610) is fixedly provided with a first clamping seat (611) which is in sliding clamping with the first clamping groove (613).
3. The lithium ion battery membrane electrode coating device according to claim 2, wherein toothed rings (603) are symmetrically arranged on two sides of the drying cylinder (306), a limiting disc (608) is fixedly arranged at the central end of each toothed ring (603), and the limiting disc (608) is fixedly arranged on the second air pipe (305);
Wherein, both sides one side that spacing ring (6) kept away from mutually is circumference array rotation and lays a plurality of groups and fixed telescopic link (606) of guide pulley (601), telescopic link (606) other end slip grafting is in sleeve (605), sleeve (605) inner wall is circumference array and sets up a plurality of groups second draw-in groove (612), corresponding fixed second cassette (607) of having laid with second draw-in groove (612) slip joint on telescopic link (606), sleeve (605) are kept away from telescopic link (606) one end fixed cloth have with gear (604) of ring gear (603) meshing.
4. The lithium ion battery membrane electrode coating device according to claim 1, wherein the inner wall of the first air duct (5) is provided with a plurality of groups of third clamping grooves (504) in a circumferential array, and third clamping seats (505) which are in sliding clamping with the third clamping grooves (504) are correspondingly and fixedly arranged on the second air duct (502).
5. The lithium ion battery membrane electrode coating device according to claim 1, wherein sealing plates (302) are symmetrically and slidingly arranged at two sides of the feeding hole (301), and one end, close to the sealing plates (302), of the two sides is fixed with a limiting ring (6);
wherein, upper guide post (303) and lower guide post (304) are symmetrically arranged on the sealing plate (302).
6. The device for coating the membrane electrode of the lithium ion battery according to claim 1, wherein the coating mechanism comprises an upper coating box body (204) and a lower coating box body (205) which are arranged on two sides of the electrode membrane (1), a plurality of groups of first coating rollers (210) are arranged in the upper coating box body (204) in an array mode, a plurality of groups of second coating rollers (211) are arranged in the lower coating box body (205) in the array mode, and the electrode membrane (1) is transmitted between the first coating rollers (210) and the second coating rollers (211).
7. A coating method of the lithium ion battery membrane electrode coating apparatus according to any one of claims 1 to 6, comprising the steps of:
the electrode film (1) is output by an unreeling roller (101);
The coating mechanism coats the electrode coating on the front and back surfaces of the electrode film (1);
The first drying module (3) is used for drying and solidifying the coating surface on one side of the electrode film (1) and then inputting the coating surface into the second drying module (4);
the second drying module (4) is used for drying and solidifying the coating surface on the other side of the electrode film (1);
And winding the electrode film (1) subjected to double-sided drying and curing on a winding roller (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410418193.6A CN118002423B (en) | 2024-04-09 | 2024-04-09 | Lithium ion battery membrane electrode coating device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410418193.6A CN118002423B (en) | 2024-04-09 | 2024-04-09 | Lithium ion battery membrane electrode coating device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118002423A CN118002423A (en) | 2024-05-10 |
| CN118002423B true CN118002423B (en) | 2024-06-14 |
Family
ID=90943253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410418193.6A Active CN118002423B (en) | 2024-04-09 | 2024-04-09 | Lithium ion battery membrane electrode coating device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118002423B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT122695B (en) * | 1927-02-26 | 1931-05-11 | Erik Alexander Oehlin | Method and device for drying paper webs. |
| CN108506224A (en) * | 2018-05-04 | 2018-09-07 | 西北工业大学 | A kind of dual channel fan guide vane regulating mechanism |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2312213A1 (en) * | 2000-06-15 | 2001-12-15 | Hydro-Quebec | New process for preparing electrodes and electrolytes for li-ion batteries |
| US8104694B2 (en) * | 2008-02-05 | 2012-01-31 | Chih-Yuan Yang | Air spray gun |
| JP2012013383A (en) * | 2010-07-05 | 2012-01-19 | Clean Technology Kk | Drying device in thin film coating device |
| JP2012146852A (en) * | 2011-01-13 | 2012-08-02 | Tokyo Electron Ltd | Electrode manufacturing device, electrode manufacturing method, program, and computer storage medium |
| DE202016102780U1 (en) * | 2016-05-25 | 2017-08-28 | Bobst Bielefeld Gmbh | drying nozzle |
| CN213804417U (en) * | 2020-11-10 | 2021-07-27 | 贵州华亿绿色纺织产业科技有限公司 | Cloth short-flow presetting system with electromagnetic heating structure |
| CN112756216B (en) * | 2020-12-28 | 2021-07-20 | 河源昆腾电子科技有限公司 | Protective film coating machine applied to protective film production and using method thereof |
| CN113387224B (en) * | 2021-07-22 | 2022-06-24 | 江西力征材料有限公司 | A integrative equipment is cut in coating stoving for dry film production |
| CN115041369A (en) * | 2022-07-08 | 2022-09-13 | 浙江省开化七一电力器材有限责任公司 | Insulator dehydrating unit |
| CN116637763A (en) * | 2023-05-31 | 2023-08-25 | 深圳市佳劲源科技有限公司 | Pole piece coating machine for processing lithium ion battery |
| CN116871098A (en) * | 2023-07-12 | 2023-10-13 | 泰州衡川新能源材料科技有限公司 | Diaphragm coating device with drying function for lithium ion battery and application method |
-
2024
- 2024-04-09 CN CN202410418193.6A patent/CN118002423B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT122695B (en) * | 1927-02-26 | 1931-05-11 | Erik Alexander Oehlin | Method and device for drying paper webs. |
| CN108506224A (en) * | 2018-05-04 | 2018-09-07 | 西北工业大学 | A kind of dual channel fan guide vane regulating mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118002423A (en) | 2024-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1121317B1 (en) | Draw roller for striplike materials, especially paper or cardboard strips, plastic or metal foils | |
| CN112756216B (en) | Protective film coating machine applied to protective film production and using method thereof | |
| CN118002423B (en) | Lithium ion battery membrane electrode coating device and method | |
| CN114277608B (en) | Five-roller coating machine and coating method thereof | |
| CN113499931B (en) | Gluing system and method based on intelligent automatic electronic component protective film | |
| CN109367121B (en) | A water proof membrane tectorial membrane device for in paper cup production | |
| CN201161230Y (en) | Membrane coating machine | |
| CN107675385A (en) | A kind of Efficient textile coat system | |
| CN211436867U (en) | Coating device for membrane electrode | |
| CN211678386U (en) | Coating machine capable of adjusting film tension | |
| CN114713438A (en) | Coating equipment and coating system applying same | |
| CN107570375A (en) | A kind of coloring means in film colouring equipment | |
| CN214554932U (en) | Coating drying-machine is used in plastic film processing production | |
| CN107621150B (en) | A kind of more case drying units that film is painted in equipment | |
| KR101753115B1 (en) | Gravure press | |
| WO1994018604A1 (en) | Apparatus and method for applying a protective coating to a film strip | |
| CN210675785U (en) | Vertical coating device | |
| CN220883583U (en) | Continuous smearing and bonding bag making machine | |
| CN107497637A (en) | A kind of Efficient textile coating process | |
| CN218013825U (en) | Resistance-free expansion roller adjusting device for coating machine | |
| KR102193107B1 (en) | Web cleaner flim roll | |
| CN217664266U (en) | Double-side coating glue rolling machine | |
| CN118144417B (en) | Printing device and printing method for touch ink packaging bag | |
| JP6851042B2 (en) | Resin liquid coating machine | |
| CN221969194U (en) | Food packaging film green printing equipment with tensioning mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A device and method for coating lithium-ion battery membrane electrodes Granted publication date: 20240614 Pledgee: Agricultural Bank of China Limited Anqing Xinglong Branch Pledgor: Anhui Hengchuan New Energy Materials Technology Co.,Ltd. Registration number: Y2024980030792 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |