CN116564615B - Pole piece processing method, pole piece processing equipment and pole piece - Google Patents
Pole piece processing method, pole piece processing equipment and pole piece Download PDFInfo
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- CN116564615B CN116564615B CN202310705823.3A CN202310705823A CN116564615B CN 116564615 B CN116564615 B CN 116564615B CN 202310705823 A CN202310705823 A CN 202310705823A CN 116564615 B CN116564615 B CN 116564615B
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- 238000003672 processing method Methods 0.000 title claims abstract description 18
- 239000000919 ceramic Substances 0.000 claims abstract description 128
- 239000002002 slurry Substances 0.000 claims abstract description 114
- 239000011888 foil Substances 0.000 claims abstract description 81
- 229910052751 metal Inorganic materials 0.000 claims abstract description 79
- 239000002184 metal Substances 0.000 claims abstract description 79
- 239000011267 electrode slurry Substances 0.000 claims abstract description 77
- 238000001035 drying Methods 0.000 claims abstract description 65
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims description 55
- 230000007246 mechanism Effects 0.000 claims description 52
- 230000003287 optical effect Effects 0.000 claims description 18
- 230000035515 penetration Effects 0.000 claims description 15
- 239000002003 electrode paste Substances 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 7
- 239000012466 permeate Substances 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0026—Apparatus for manufacturing conducting or semi-conducting layers, e.g. deposition of metal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/30—Drying; Impregnating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
-
- 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
Abstract
The invention provides a pole piece processing method, pole piece processing equipment and a pole piece, which at least comprise the following steps: coating the ceramic edge slurry and the electrode slurry on one side of the metal foil, and drying the ceramic edge slurry so that the ceramic edge slurry and the electrode slurry cannot permeate; and (3) drying the metal foil coated with the ceramic edge slurry and the electrode slurry to obtain the pole piece. According to the method, before the ceramic edge slurry and the electrode slurry are dried simultaneously, the ceramic edge slurry on the metal foil is dried, so that the ceramic edge slurry can be rapidly in a semi-dry state, the situation that the ceramic edge slurry cannot permeate the electrode slurry is guaranteed, and the insulating property of the pole piece is enhanced. In addition, through carrying out the stoving processing simultaneously to ceramic limit thick liquids and electrode thick liquids on the metal foil for ceramic limit thick liquids and electrode thick liquids can be quick adsorb on the metal foil in order to cooperate the formation pole piece, have improved the efficiency of pole piece processing.
Description
Technical Field
The invention relates to the technical field of slurry drying, in particular to a pole piece processing method, pole piece processing equipment and a pole piece.
Background
Under the same drying condition, the solid content of the positive electrode slurry and the solid content of the ceramic edge slurry in the existing market are inconsistent, and the high concentration can migrate to the low concentration due to the inconsistent concentration difference, so that the ceramic edge slurry and the positive electrode slurry are mutually permeated, and the insulation performance of the pole piece is affected.
Disclosure of Invention
Based on the above, it is necessary to provide a pole piece processing method, a pole piece processing device and a pole piece aiming at the problem that the insulation performance of the pole piece is affected due to the mutual penetration of ceramic edge slurry and positive electrode slurry in the traditional pole piece.
The technical scheme is as follows:
in one aspect, a method for processing a pole piece is provided, including:
coating ceramic edge slurry and electrode slurry on one side of a metal foil, and drying the ceramic edge slurry so that no penetration phenomenon occurs between the ceramic edge slurry and the electrode slurry;
and drying the metal foil coated with the ceramic edge slurry and the electrode slurry to obtain a pole piece.
The technical scheme is further described as follows:
in one embodiment, the step of coating the ceramic edge slurry and the electrode slurry on one side of the metal foil and drying the ceramic edge slurry so that no penetration phenomenon occurs between the ceramic edge slurry and the electrode slurry includes:
and coating the ceramic edge slurry and the electrode slurry on one side of the metal foil, and drying the ceramic edge slurry for a preset time with preset power through a heating module, so that a penetration phenomenon can not occur between the ceramic edge slurry and the electrode slurry.
In one embodiment, the step of coating the ceramic edge slurry and the electrode slurry on one side of the metal foil, and drying the ceramic edge slurry for a preset time with a preset power by a heating module so that no penetration phenomenon occurs between the ceramic edge slurry and the electrode slurry includes:
and coating the ceramic edge slurry and the electrode slurry on one side of the metal foil, and drying the ceramic edge slurry for a preset time with preset power through the optical heating module, so that a penetration phenomenon can not occur between the ceramic edge slurry and the electrode slurry.
In one embodiment, the step of coating the ceramic edge slurry and the electrode slurry on one side of the metal foil, and drying the ceramic edge slurry for a preset time with a preset power by a heating module so that no penetration phenomenon occurs between the ceramic edge slurry and the electrode slurry includes:
coating ceramic edge slurry and electrode slurry on one side of a metal foil;
the metal foil coated with the ceramic edge slurry and the electrode slurry is placed on a conveying mechanism, so that the conveying mechanism can drive the ceramic edge slurry on the metal foil to pass through a heating area of the heating module at a preset speed, and the ceramic edge slurry and the electrode slurry cannot penetrate.
In one embodiment, the step of drying the metal foil coated with the ceramic edge paste and the electrode paste to obtain a pole piece includes:
the conveying mechanism drives the metal foil coated with the ceramic edge slurry and the electrode slurry to pass through a first oven to carry out primary drying treatment;
and the conveying mechanism continuously drives the metal foil subjected to the first drying treatment to pass through a second oven so as to process the metal foil to obtain the pole piece.
In another aspect, a pole piece processing device is provided, which is configured to implement the pole piece processing method, including:
the heating module is used for drying the ceramic slurry on the metal foil;
and the drying assembly is used for drying the ceramic slurry and the electrode slurry on the metal foil.
In one embodiment, the pole piece processing device further comprises a conveying mechanism, the conveying mechanism penetrates through the drying assembly, and the heating module is located on one side of the drying assembly and corresponds to the conveying mechanism.
In one embodiment, the heating module is configured as an optical heating module, along the conveying direction of the conveying mechanism, the optical heating module extends from the feeding position of the conveying mechanism to the feeding port of the drying assembly, and the optical heating module is disposed on one side of the conveying mechanism.
In one embodiment, the pole piece processing device further comprises a coating mechanism for coating the ceramic slurry and the electrode slurry on two sides of the same surface of the metal foil.
In yet another aspect, a pole piece is provided, the pole piece being prepared based on the pole piece processing method.
The pole piece processing method, the pole piece processing equipment and the pole piece have at least the following advantages: 1. before the ceramic edge slurry and the electrode slurry are dried simultaneously, the ceramic edge slurry on the metal foil is dried, so that the ceramic edge slurry can be in a semi-dry state rapidly, the condition that the ceramic edge slurry cannot permeate the electrode slurry is guaranteed, and the insulating property of the pole piece is enhanced. 2. The ceramic edge slurry and the electrode slurry on the metal foil are subjected to drying treatment simultaneously, so that the ceramic edge slurry and the electrode slurry can be quickly adsorbed on the metal foil to be matched with each other to form the pole piece, and the pole piece processing efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application and are not to be construed as limiting the application.
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a pole piece processing method according to an embodiment.
Fig. 2 is a flow chart of a pole piece processing method according to another embodiment.
Fig. 3 is a flow chart of a pole piece processing method of yet another embodiment.
Fig. 4 is a schematic structural view of a pole piece processing apparatus according to an embodiment.
Reference numerals illustrate:
10. pole piece processing equipment; 100. a heating module; 200. a drying assembly; 210. a first oven; 220. a second oven; 300. and a conveying mechanism.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
As shown in fig. 1, in one embodiment, there is provided a pole piece processing method, including at least the steps of:
and S100, coating the ceramic edge slurry and the electrode slurry on one side of the metal foil, and drying the ceramic edge slurry so that the ceramic edge slurry and the electrode slurry cannot be permeated. Therefore, before the ceramic edge slurry and the electrode slurry are dried simultaneously, the ceramic edge slurry on the metal foil is dried, so that the ceramic edge slurry can be quickly in a semi-dry state, the condition that the ceramic edge slurry cannot permeate the electrode slurry is ensured, and the insulating property of the pole piece is enhanced.
The electrode paste may be a positive electrode paste or a negative electrode paste. The metal foil can be copper foil, aluminum foil or foil made of other metal materials. The electrode slurry and the ceramic edge slurry are correspondingly coated on two sides of the same surface of the metal foil, and the coating area of the electrode slurry is larger than that of the ceramic edge slurry.
As shown in fig. 2, in this embodiment, S110, the ceramic edge slurry and the electrode slurry are coated on one side of the metal foil, and the ceramic edge slurry is dried by the heating module 100 with a preset power for a preset time, so that no penetration phenomenon occurs between the ceramic edge slurry and the electrode slurry. Thus, by controlling the heating power and heating time of the heating module 100, the ceramic edge slurry on the metal foil can be quickly dried to a semi-dry state, and the processing reliability and processing quality of the pole piece are improved.
It should be noted that the heating module 100 may be an electric heating module, an optical heating module, or other heating structures. In this embodiment, the ceramic edge slurry and the electrode slurry are coated on one side of the metal foil, and the ceramic edge slurry is dried for a preset time with a preset power by the optical heating module, so that a penetration phenomenon between the ceramic edge slurry and the electrode slurry does not occur. Therefore, the optical heating module can uniformly heat the ceramic edge slurry on the metal foil, and the reliability of pole piece processing is further improved.
It should be noted that, the preset power and the preset time of the heating module can be flexibly adjusted according to the actual use requirement. Specifically, in this embodiment, the optical heating module performs the drying treatment on the ceramic edge slurry for 1s with a heating power of 4000W.
As shown in fig. 3, the ceramic edge paste and the electrode paste are optionally coated on one side of the metal foil at S111. Therefore, the ceramic rim charge and the electrode slurry can be coated on the metal foil in the same procedure, so that the process flow of pole piece processing is simplified, and the pole piece processing efficiency and convenience are improved.
And S112, placing the metal foil coated with the ceramic edge slurry and the electrode slurry on a conveying mechanism 300, so that the conveying mechanism 300 can drive the ceramic edge slurry on the metal foil to pass through a heating area of the heating module 100 at a preset speed, and further, a permeation phenomenon can not occur between the ceramic edge slurry and the electrode slurry. Thus, the heating module 100 can dry the ceramic edge slurry on the metal foil in the process of conveying the metal foil, so that extra heating and drying time is not required, and the pole piece processing efficiency is improved.
The time for drying the ceramic edge material on the metal foil by the heating module 100 may be adjusted by adjusting the length of the heating region in the conveying direction of the conveying mechanism 300 or the conveying speed of the conveying mechanism 300.
It should be noted that the conveying mechanism 300 may be a belt conveying mechanism, a chain conveying mechanism, a roller conveying mechanism, or other conveying mechanisms.
And S200, drying the metal foil coated with the ceramic edge slurry and the electrode slurry to obtain a pole piece. Therefore, the ceramic edge slurry and the electrode slurry on the metal foil are subjected to drying treatment simultaneously, so that the ceramic edge slurry and the electrode slurry can be quickly adsorbed on the metal foil to be matched with each other to form the pole piece, and the pole piece processing efficiency is improved.
As shown in fig. 2 and 3, in the embodiment, S210, a conveying mechanism 300 drives the metal foil coated with the ceramic edge paste and the electrode paste through a first oven 210 to perform a first drying process. Thus, the first oven 210 can rapidly remove most of water in the ceramic edge slurry and the electrode slurry, and the pole piece processing efficiency is improved.
It should be noted that, the drying rate in the first oven 210 can be flexibly adjusted according to the actual use requirement.
And S220, the conveying mechanism 300 continues to drive the metal foil subjected to the first drying treatment to pass through the second oven 220 so as to process the metal foil to obtain a pole piece. Therefore, the second oven 220 can dry the water in the ceramic edge slurry and the electrode slurry for the second time, so that the ceramic edge slurry and the electrode slurry can be stably and reliably adsorbed on the metal foil, and the reliability and the processing quality of pole piece processing are improved.
It should be noted that, the drying rate in the second oven 220 can be flexibly adjusted according to the actual use requirement.
The pole piece processing method of the embodiment has at least the following advantages: 1. before the ceramic edge slurry and the electrode slurry are dried simultaneously, the ceramic edge slurry on the metal foil is dried, so that the ceramic edge slurry can be in a semi-dry state rapidly, the condition that the ceramic edge slurry cannot permeate the electrode slurry is guaranteed, and the insulating property of the pole piece is enhanced. 2. The ceramic edge slurry and the electrode slurry on the metal foil are subjected to drying treatment simultaneously, so that the ceramic edge slurry and the electrode slurry can be quickly adsorbed on the metal foil to be matched with each other to form the pole piece, and the pole piece processing efficiency is improved.
As shown in fig. 4, in one embodiment, a pole piece processing apparatus 10 is provided for implementing the pole piece processing method of any of the above embodiments, including a heating module 100 and a drying assembly 200. The heating module 100 is used for drying the ceramic slurry on the metal foil. The drying assembly 200 is used for drying the ceramic slurry and the electrode slurry on the metal foil.
When the pole piece processing device 10 in the above embodiment is used, firstly, the ceramic edge slurry and the electrode slurry are coated on one side of the metal foil, and the ceramic edge slurry is dried, so that the ceramic edge slurry can be quickly in a semi-dried state, the condition that the ceramic edge slurry cannot permeate into the electrode slurry is further ensured, the insulation performance of the pole piece is enhanced, and the processing quality of the pole piece processing device 10 is improved. Then, the metal foil coated with the ceramic edge slurry and the electrode slurry is subjected to drying treatment, so that the ceramic edge slurry and the electrode slurry can be quickly adsorbed on the metal foil to be matched with each other to form a pole piece, and the efficiency of the pole piece processing equipment 10 is improved.
As shown in fig. 4, further, the pole piece processing device 10 further includes a conveying mechanism 300, the conveying mechanism 300 is disposed through the drying assembly 200, and the heating module 100 is located at one side of the drying assembly 200 and is disposed corresponding to the conveying mechanism 300. Thus, the heating module 100 can dry the ceramic edge slurry on the metal foil in the process of conveying the metal foil, so that extra heating and drying time is not required, and the pole piece processing efficiency is improved.
Optionally, the heating module 100 is configured as an optical heating module, and the optical heating module extends from a feeding position of the conveying mechanism 300 to a feeding port of the drying assembly 200 along a conveying direction of the conveying mechanism 300, and the optical heating module is disposed at one side of the conveying mechanism 300. Therefore, the optical heating module can uniformly heat the ceramic edge slurry on the metal foil, and the reliability of pole piece processing is further improved.
In this embodiment, the optical heating modules are disposed at intervals on one side of the bottom of the transmission mechanism. Thus, interference between the optical heating module and the conveying mechanism 300 is avoided, and reliability of the pole piece processing device 10 is improved.
The drying assembly 200 may be a drying box, a drying room, or other drying mechanism.
In this embodiment, the drying assembly 200 includes a first oven 210 and a second oven 220 that are mutually communicated, the transmission mechanism 300 is sequentially disposed through the first oven 210 and the second oven 220, and the heating module 100 is disposed on a side of the first oven 210 away from the second oven 220. Thus, firstly, the conveying mechanism 300 can drive the metal foil coated with the ceramic edge slurry and the electrode slurry to pass through the first oven 210 for the first drying treatment, so that the first oven 210 can rapidly remove most of the moisture in the ceramic edge slurry and the electrode slurry, and the efficiency of the pole piece processing device 10 is improved. Then, the conveying mechanism 300 continues to drive the metal foil subjected to the primary drying treatment to pass through the second oven 220 for secondary drying, so that the ceramic edge slurry and the electrode slurry can be stably and reliably adsorbed on the metal foil, and the reliability and the processing quality of the pole piece processing equipment 10 are improved.
Optionally, the pole piece processing device 10 further includes a coating mechanism for coating the ceramic slurry and the electrode slurry on both sides of the same face of the metal foil. Thus, the coating mechanism can automatically and correspondingly coat the ceramic edge slurry and the electrode slurry on the metal foil, and the automation degree of the pole piece processing equipment 10 is improved.
The coating mechanism may be a roll coating mechanism, a roll coating mechanism or other coating structures. The number of the coating mechanisms can be flexibly adjusted according to the actual use requirement.
In one embodiment, a pole piece is provided, which is prepared based on the pole piece processing method in any of the above embodiments. Therefore, the ceramic edge slurry in the pole piece and the electrode slurry cannot be mutually permeated, so that the insulating performance of the pole piece is enhanced, and the reliability and safety of the pole piece are improved.
In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, if any, 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 at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.
In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.
It will be further understood that when interpreting the connection or positional relationship of elements, although not explicitly described, the connection and positional relationship are to be interpreted as including the range of errors that should be within an acceptable range of deviations from the particular values as determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, and is not limited herein.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples represent only a few embodiments of the present application, which are described in more detail and are not thereby to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (9)
1. The pole piece processing method is characterized by comprising the following steps:
coating ceramic edge slurry and electrode slurry on one side of a metal foil, and drying the ceramic edge slurry so that no penetration phenomenon occurs between the ceramic edge slurry and the electrode slurry;
drying the metal foil coated with the ceramic edge slurry and the electrode slurry to obtain a pole piece;
wherein, the step of drying the ceramic edge slurry so that no penetration phenomenon occurs between the ceramic edge slurry and the electrode slurry comprises the steps of: the metal foil coated with the ceramic edge slurry and the electrode slurry is placed on a conveying mechanism, so that the conveying mechanism can drive the ceramic edge slurry on the metal foil to pass through a heating area of a heating module at a preset speed, and the ceramic edge slurry can be rapidly in a semi-dry state, so that a permeation phenomenon can not occur between the ceramic edge slurry and the electrode slurry.
2. The method according to claim 1, wherein the step of coating the ceramic edge paste and the electrode paste on one side of the metal foil and drying the ceramic edge paste so that no penetration phenomenon occurs between the ceramic edge paste and the electrode paste comprises:
and coating the ceramic edge slurry and the electrode slurry on one side of the metal foil, and drying the ceramic edge slurry for a preset time with preset power through a heating module, so that a penetration phenomenon can not occur between the ceramic edge slurry and the electrode slurry.
3. The method according to claim 2, wherein the step of coating the ceramic edge paste and the electrode paste on one side of the metal foil and drying the ceramic edge paste with a predetermined power for a predetermined time by a heating module so that a penetration phenomenon does not occur between the ceramic edge paste and the electrode paste, comprises:
and coating the ceramic edge slurry and the electrode slurry on one side of the metal foil, and drying the ceramic edge slurry for a preset time with preset power through the optical heating module, so that a penetration phenomenon can not occur between the ceramic edge slurry and the electrode slurry.
4. A method according to any one of claims 1 to 3, wherein in the step of subjecting the metal foil coated with the ceramic edge paste and the electrode paste to a baking treatment to process the metal foil into a pole piece, the method comprises:
the conveying mechanism drives the metal foil coated with the ceramic edge slurry and the electrode slurry to pass through a first oven to carry out primary drying treatment;
and the conveying mechanism continuously drives the metal foil subjected to the first drying treatment to pass through a second oven so as to process the metal foil to obtain the pole piece.
5. A pole piece processing apparatus for realizing the pole piece processing method as claimed in any one of claims 1 to 4, comprising:
the heating module is used for drying the ceramic slurry on the metal foil;
and the drying assembly is used for drying the ceramic slurry and the electrode slurry on the metal foil.
6. The pole piece processing device of claim 5, further comprising a conveying mechanism, wherein the conveying mechanism is arranged through the drying assembly, and the heating module is arranged on one side of the drying assembly and corresponds to the conveying mechanism.
7. The pole piece processing device of claim 6, wherein the heating module is configured as an optical heating module, the optical heating module extends from a feeding position of the conveying mechanism to a feeding port of the drying assembly along a conveying direction of the conveying mechanism, and the optical heating module is disposed at one side of the conveying mechanism.
8. The pole piece processing apparatus according to any one of claims 5 to 7, further comprising a coating mechanism for coating the ceramic paste and the electrode paste on both sides of the same face of the metal foil.
9. A pole piece, characterized in that it is produced on the basis of the pole piece processing method according to any one of claims 1 to 4.
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| CN202310705823.3A CN116564615B (en) | 2023-06-14 | 2023-06-14 | Pole piece processing method, pole piece processing equipment and pole piece |
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| JP2014212027A (en) * | 2013-04-18 | 2014-11-13 | 株式会社豊田自動織機 | Electrode manufacturing device |
| CN108816565A (en) * | 2018-06-28 | 2018-11-16 | 合肥国轩高科动力能源有限公司 | A kind of the dispensing ceramics apparatus for coating and method of anti-mixing |
| CN109065818A (en) * | 2018-06-28 | 2018-12-21 | 合肥国轩高科动力能源有限公司 | A kind of low short circuit ratio lithium ion power cell pole flakes and preparation method thereof |
| CN210110925U (en) * | 2019-06-02 | 2020-02-21 | 长沙新材料产业研究院有限公司 | Multifunctional coating machine for lithium ion battery |
| CN113972373A (en) * | 2021-10-08 | 2022-01-25 | 浙江超恒动力科技有限公司 | Preparation method of lithium iron phosphate pole piece and lithium ion battery |
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| CN116564615A (en) | 2023-08-08 |
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