CN113000319A - Lithium battery coating device and process - Google Patents
Lithium battery coating device and process Download PDFInfo
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- CN113000319A CN113000319A CN202110241851.5A CN202110241851A CN113000319A CN 113000319 A CN113000319 A CN 113000319A CN 202110241851 A CN202110241851 A CN 202110241851A CN 113000319 A CN113000319 A CN 113000319A
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- 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
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
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- 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
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- 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
- B05C9/10—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 being performed before the application
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- 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
- B05C9/12—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 being performed after the application
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- 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
- B05D3/002—Pretreatement
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- 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
- B05D3/007—After-treatment
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- 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
- B05D3/02—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 baking
- B05D3/0254—After-treatment
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- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- 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
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- 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
- H01M10/058—Construction or manufacture
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The embodiment of the invention provides a lithium battery coating device and process, and relates to the field of lithium battery manufacturing. The lithium battery coating device includes: the thickness measuring mechanism is used for measuring the thickness of the base material; the demagnetizing mechanism is used for demagnetizing the surface of the base material; the impurity removal mechanism is used for cleaning and removing impurities on the surface of the base material; the impurity removing mechanism is used for performing static removing treatment on the base material; the coating mechanism is used for coating the slurry on the surface of the base material; the baking mechanism is used for evaporating the solvent in the slurry coated on the surface of the base material; the wrinkle-removing and evaluating mechanism is used for wrinkle-removing and flattening the coated pole piece. The embodiment of the invention can effectively ensure the coating quality and reduce the loss.
Description
Technical Field
The invention relates to the field of lithium battery manufacturing, in particular to a lithium battery coating device and process.
Background
In the coating process of the lithium battery, the coating is vital, the coating effect has important influence on the capacity, the internal resistance, the cycle life and the safety of the battery, and the uniform coating of the pole piece is ensured. The selection of the coating mode and the control parameters have an important influence on the performance of the lithium ion battery.
At present, the main problems encountered in coating are coating quality defects caused by factors such as unstable coating weight and the like, and more substrate loss.
Disclosure of Invention
The invention aims to provide a lithium battery coating device and process, which can effectively ensure coating quality and reduce loss.
The embodiment of the invention is realized by the following steps:
in a first aspect, the present invention provides a lithium battery coating apparatus, comprising:
the thickness measuring mechanism is used for measuring the thickness of the base material;
the demagnetizing mechanism is used for demagnetizing the surface of the base material;
the impurity removal mechanism is used for cleaning and removing impurities on the surface of the base material;
the impurity removing mechanism is used for carrying out static removing treatment on the base material;
the coating mechanism is used for coating the slurry on the surface of the base material;
a baking mechanism for evaporating a solvent in the slurry coated on the surface of the substrate;
and the wrinkle removing and flattening mechanism is used for removing wrinkles and flattening the coated pole piece.
In an optional embodiment, the lithium battery coating device further comprises an unwinding mechanism, and the unwinding mechanism is located before the thickness measuring mechanism and used for unwinding the substrate.
In an optional embodiment, the lithium battery coating device further includes a first tape splicing mechanism, and the first tape splicing mechanism is located between the unwinding mechanism and the thickness measuring mechanism and is used for splicing the base material.
In an optional embodiment, the lithium battery coating device further comprises an automatic sampling mechanism, wherein the automatic sampling mechanism is located between the coating mechanism and the baking mechanism and is used for sampling and sampling the base material coated with the slurry.
In an optional embodiment, the lithium battery coating device further comprises a weight measuring mechanism, and the weight measuring mechanism is located behind the wrinkle removing and flattening mechanism and is used for measuring the weight of the coated pole piece.
In an optional embodiment, the lithium battery coating device further comprises a second tape splicing mechanism, and the second tape splicing mechanism is located behind the weight measuring mechanism and is used for splicing the pole pieces.
In an optional implementation manner, the lithium battery coating device further includes a winding mechanism, and the winding mechanism is located behind the wrinkle removing and flattening mechanism and is used for winding the pole piece.
In a second aspect, the present invention provides a lithium battery coating process for coating a substrate, the lithium battery coating process comprising:
measuring the thickness of the base material, and judging whether the thickness of the base material meets the thickness requirement of coating;
carrying out demagnetization treatment, impurity removal treatment and static electricity removal treatment on the base material meeting the thickness requirement;
uniformly coating the prepared slurry on the base material;
evaporating the solvent in the slurry coated on the surface of the substrate;
and (4) removing wrinkles and flattening the coated pole piece.
In an alternative embodiment, after the step of evaporating the solvent in the slurry coated on the surface of the substrate, the lithium battery coating process further comprises sampling the substrate coated with the slurry for sampling.
In an optional embodiment, after the step of removing wrinkles and flattening the coated pole piece, the coating process of the lithium battery further includes a step of performing weight measurement on the pole piece.
The embodiment of the invention has the beneficial effects that: the thickness measuring mechanism is used for measuring the thickness of the base material, so that waste or quality problems caused by poor coating due to the thickness of the base material are prevented; the demagnetizing mechanism is used for demagnetizing the surface of the base material, so that the quality and safety problems of the battery caused by the fact that scrap iron pierces the base material or is mixed into coating slurry are prevented; the impurity removing mechanism is used for cleaning and removing impurities on the surface of the base material, so that the acting force of the surface of the layer is optimized, and the band breakage frequency is reduced; the impurity removal mechanism is used for carrying out static electricity removal treatment on the base material, so that the coating defect caused by electrostatic adsorption of dust and air impurities is reduced or avoided; the coating mechanism is used for coating the slurry on the surface of the base material; the baking mechanism is used for evaporating the solvent in the slurry coated on the surface of the base material; and the wrinkle removing and flattening mechanism is used for removing wrinkles and flattening the coated pole piece. That is to say, in the embodiment of the present invention, the thickness measuring mechanism, the demagnetizing mechanism, the impurity removing mechanism, and the static electricity removing mechanism are provided before coating, so that the thickness of the base material before coating meets the coating requirement, and the safety and quality problems caused by iron filings, the belt breakage problem caused by the surface tension of the coating due to impurities, and the coating defects caused by electrostatic adsorption of dust, etc. are avoided or avoided. The embodiment of the invention can effectively ensure the coating quality and reduce the loss.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic block diagram of a lithium battery coating apparatus according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a process of coating a lithium battery according to an embodiment of the present invention.
Icon: 100-lithium battery coating device; 110-an unwinding mechanism; 120-a first splicing mechanism; 130-thickness measuring mechanism; 140-a demagnetization mechanism; 150-an impurity removal mechanism; 160-a static electricity removal mechanism; 170-a coating mechanism; 180-an automatic sampling mechanism; 190-a baking mechanism; 200-a wrinkle-removing and flattening mechanism; 210-a weight measuring mechanism; 220-a second splicing mechanism; 230-a take-up mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, an embodiment of the invention provides a lithium battery coating apparatus 100. The lithium battery coating device 100 can effectively ensure coating quality and reduce loss.
In an embodiment of the present invention, the lithium battery coating apparatus 100 includes: the device comprises an unwinding mechanism 110, a first belt splicing mechanism 120, a thickness measuring mechanism 130, a demagnetizing mechanism 140, an impurity removing mechanism 150, a static electricity removing mechanism 160, a coating mechanism 170, an automatic sampling mechanism 180, a baking mechanism 190, a wrinkle removing and flattening mechanism 200, a weight measuring mechanism 210, a second belt splicing mechanism 220 and a winding mechanism 230.
It should be noted that, in the present embodiment, the thickness measuring mechanism 130 is used for measuring the thickness of the substrate, so as to prevent waste or quality problems caused by poor coating due to the thickness of the substrate itself; the demagnetizing mechanism 140 is used for demagnetizing the surface of the base material, so as to prevent scrap iron from penetrating the base material or mixing into coating slurry to cause quality and safety problems to the battery; the impurity removal mechanism 150 is used for cleaning and removing impurities on the surface of the substrate, so that the acting force on the surface of the pattern layer is optimized, and the band breakage frequency is reduced; the impurity removal mechanism 150 is used for performing static electricity removal treatment on the base material, so that coating defects caused by electrostatic adsorption of dust and air impurities are reduced or avoided; the coating mechanism 170 is used for coating the slurry on the surface of the substrate; the baking mechanism 190 is used to evaporate the solvent in the slurry coated on the surface of the substrate; and the wrinkle removing and flattening mechanism 200 is used for performing wrinkle removing and flattening on the coated pole piece. That is, in the embodiment of the present invention, the thickness measuring mechanism 130, the demagnetizing mechanism 140, the impurity removing mechanism 150, and the static eliminating mechanism 160 are disposed before coating, so that the thickness of the substrate before coating meets the coating requirement, and the safety and quality problems caused by iron filings, the belt breakage problem caused by surface tension of the coating due to impurities, and the coating defects caused by electrostatic dust adsorption and the like are avoided or avoided. The embodiment of the invention can effectively ensure the coating quality and reduce the loss.
In addition, for the impurity removing mechanism 150, foreign matters such as dust or long flocks are mixed into the coating liquid or fall onto the surface of the wet coating, the surface tension of the coating at the position changes due to the influence of external force, the slurry is slightly transferred and forms a circular trace after being dried, the middle part is thinner to carry out 'foil cleaning' on the unreeled foil, the foil has low surface energy and poor cohesiveness and is difficult to form a uniform surface during coating, the surface energy of the foil is improved after a plasma cleaning process, the surface performance is durable and stable, the method adopts a dry treatment mode, has no pollution and no waste water, meets the environmental requirements, the coating efficiency and speed are effectively improved, meanwhile, the defects of oil stains and the like caused by reason coating are optimized, and the band breaking frequency is reduced.
In an alternative embodiment, the lithium battery coating apparatus 100 may further include an unwinding mechanism 110, where the unwinding mechanism 110 is located before the thickness measuring mechanism 130 and is used for unwinding the substrate.
In an alternative embodiment, the lithium battery coating apparatus 100 may further include a first tape splicing mechanism 120, where the first tape splicing mechanism 120 is located between the unwinding mechanism 110 and the thickness measuring mechanism 130, and is used for splicing the substrate.
In an alternative embodiment, the lithium battery coating apparatus 100 may further include an automatic sampling mechanism 180, and the automatic sampling mechanism 180 is located between the coating mechanism 170 and the baking mechanism 190, and is used for sampling and sampling the substrate coated with the slurry. Automatic sampling mechanism 180 is used for sampling the selective examination to debugging weight or process, and the main function is for debugging weight or process sampling selective examination, optionally, in order to practice thrift the waste, can take the coating after walking the pole piece to oven in dry and take a sample to this position at the rewinding.
In an optional embodiment, the lithium battery coating apparatus 100 further includes a weight measuring mechanism 210, and the weight measuring mechanism 210 is located behind the wrinkle removing and flattening mechanism 200 and is used for measuring the weight of the coated pole piece, so as to facilitate control of the coating quality.
In an alternative embodiment, the lithium battery coating apparatus 100 further includes a second tape splicing mechanism 220, and the second tape splicing mechanism 220 is located behind the weight measuring mechanism 210 and is used for performing tape splicing processing on the pole pieces.
In an optional embodiment, the lithium battery coating apparatus 100 further includes a winding mechanism 230, and the winding mechanism 230 is located behind the wrinkle removing and flattening mechanism 200 and is used for winding the pole piece to prepare for the next process or double-sided coating.
Referring to fig. 2, the present invention provides a coating process for a lithium battery, which is used for coating a substrate, and the coating process for the lithium battery includes the following steps.
Step S100: measuring the thickness of the base material, and judging whether the thickness of the base material meets the thickness requirement of coating; alternatively, the step S100 may be implemented by the thickness measuring mechanism 130 described above.
Step S200: carrying out demagnetization treatment, impurity removal treatment and static electricity removal treatment on the base material meeting the thickness requirement; alternatively, the step S200 may be implemented by the demagnetizing mechanism 140, the impurity removing mechanism 150, and the static eliminating mechanism 160 described above; in addition, the order of the three may be not particularly required and limited in the embodiment of the present invention, and optionally, the treatment may be performed in the order of the demagnetization treatment, the impurity removal treatment, and the static electricity removal treatment.
Step S300: uniformly coating the prepared slurry on a base material; alternatively, step S300 is performed by the coating mechanism 170 described above.
Step S400: sampling and sampling the base material coated with the slurry; alternatively, step S400 is implemented by the automatic sampling mechanism 180 described above.
Step S500: evaporating the solvent in the slurry coated on the surface of the substrate; alternatively, step S500 is implemented by the baking mechanism 190 described above.
Step S600: removing wrinkles and flattening the coated pole piece; alternatively, step S600 is implemented by the wrinkle smoothing and flattening mechanism 200 described above.
Step S700: and carrying out weight measurement treatment on the pole piece. Alternatively, step S700 is implemented by the weight measuring mechanism 210 described above.
It should be noted that, in an alternative embodiment, the unwinding mechanism 110 may further be used to unwind the substrate, the first tape splicing mechanism 120 is used to splice the substrate, the second tape splicing mechanism is used to splice the pole piece, and the winding mechanism 230 is used to wind the pole piece.
The lithium battery coating device 100 and the process provided by the embodiment of the invention are as follows: the thickness measuring mechanism 130 is used for measuring the thickness of the base material, thereby preventing waste or quality problems caused by poor coating due to the thickness of the base material; the demagnetizing mechanism 140 is used for demagnetizing the surface of the base material, so as to prevent scrap iron from penetrating the base material or mixing into coating slurry to cause quality and safety problems to the battery; the impurity removal mechanism 150 is used for cleaning and removing impurities on the surface of the substrate, so that the acting force on the surface of the pattern layer is optimized, and the band breakage frequency is reduced; the impurity removal mechanism 150 is used for performing static electricity removal treatment on the base material, so that coating defects caused by electrostatic adsorption of dust and air impurities are reduced or avoided; the coating mechanism 170 is used for coating the slurry on the surface of the substrate; the baking mechanism 190 is used to evaporate the solvent in the slurry coated on the surface of the substrate; and the wrinkle removing and flattening mechanism 200 is used for performing wrinkle removing and flattening on the coated pole piece. That is, in the embodiment of the present invention, the thickness measuring mechanism 130, the demagnetizing mechanism 140, the impurity removing mechanism 150, and the static eliminating mechanism 160 are disposed before coating, so that the thickness of the substrate before coating meets the coating requirement, and the safety and quality problems caused by iron filings, the belt breakage problem caused by surface tension of the coating due to impurities, and the coating defects caused by electrostatic dust adsorption and the like are avoided or avoided. The embodiment of the invention can effectively ensure the coating quality and reduce the loss.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A lithium battery coating apparatus, comprising:
a thickness measuring mechanism (130), the thickness measuring mechanism (130) being used for measuring the thickness of the substrate;
the demagnetizing mechanism (140), the said demagnetizing mechanism (140) is used for carrying on the demagnetizing treatment to the surface of the said substrate;
the impurity removal mechanism (150), the impurity removal mechanism (150) is used for cleaning and removing impurities on the surface of the base material;
the static electricity removing mechanism (160), the impurity removing mechanism (150) is used for carrying out static electricity removing treatment on the base material;
a coating mechanism (170), the coating mechanism (170) being used for coating the slurry on the surface of the base material;
a baking mechanism (190), the baking mechanism (190) being configured to evaporate a solvent in the slurry coated on the surface of the substrate;
and the wrinkle removing and flattening mechanism (200) is used for removing wrinkles and flattening the coated pole piece.
2. The lithium battery coating apparatus as claimed in claim 1, wherein the lithium battery coating apparatus (100) further comprises an unwinding mechanism (110), and the unwinding mechanism (110) is located before the thickness measuring mechanism (130) and is used for unwinding the substrate.
3. The lithium battery coating apparatus as claimed in claim 2, wherein the lithium battery coating apparatus (100) further comprises a first tape splicing mechanism (120), and the first tape splicing mechanism (120) is located between the unwinding mechanism (110) and the thickness measuring mechanism (130) and is used for splicing the substrate.
4. The lithium battery coating apparatus as claimed in claim 1, wherein the lithium battery coating apparatus (100) further comprises an automatic sampling mechanism (180), the automatic sampling mechanism (180) is located between the coating mechanism (170) and the baking mechanism (190) for sampling and sampling the substrate coated with the slurry.
5. The lithium battery coating device according to claim 1, wherein the lithium battery coating device (100) further comprises a weight measuring mechanism (210), and the weight measuring mechanism (210) is located behind the wrinkle removing and flattening mechanism (200) and is used for measuring the weight of the coated pole piece.
6. The lithium battery coating device as recited in claim 5, characterized in that the lithium battery coating device (100) further comprises a second tape splicing mechanism (220), and the second tape splicing mechanism (220) is located behind the weight measuring mechanism (210) and is used for splicing the pole pieces.
7. The lithium battery coating device according to claim 1, wherein the lithium battery coating device (100) further comprises a rolling mechanism (230), and the rolling mechanism (230) is located behind the wrinkle removing and flattening mechanism (200) and is used for rolling the pole piece.
8. A lithium battery coating process for coating a substrate, the lithium battery coating process comprising:
measuring the thickness of the base material, and judging whether the thickness of the base material meets the thickness requirement of coating;
carrying out demagnetization treatment, impurity removal treatment and static electricity removal treatment on the base material meeting the thickness requirement;
uniformly coating the prepared slurry on the base material;
evaporating the solvent in the slurry coated on the surface of the substrate;
and (4) removing wrinkles and flattening the coated pole piece.
9. The lithium battery coating process as claimed in claim 8, wherein the lithium battery coating process further comprises sampling and sampling the substrate coated with the slurry after the step of evaporating the solvent in the slurry coated on the surface of the substrate.
10. The lithium battery coating process of claim 8, wherein after the step of de-wrinkling and flattening the coated pole piece, the lithium battery coating process further comprises a step of weighing the pole piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110241851.5A CN113000319A (en) | 2021-03-04 | 2021-03-04 | Lithium battery coating device and process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110241851.5A CN113000319A (en) | 2021-03-04 | 2021-03-04 | Lithium battery coating device and process |
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| CN113000319A true CN113000319A (en) | 2021-06-22 |
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| CN202110241851.5A Pending CN113000319A (en) | 2021-03-04 | 2021-03-04 | Lithium battery coating device and process |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905204A (en) * | 2010-07-30 | 2010-12-08 | 凯迈(洛阳)机电有限公司 | Pole piece coating production line and on-line sampling system thereof |
| CN102593255A (en) * | 2012-02-29 | 2012-07-18 | 苏州中澳光伏材料科技有限公司 | Solar cell back film production method and production line thereof |
| CN203155467U (en) * | 2013-04-02 | 2013-08-28 | 宁德新能源科技有限公司 | Extrusion coating weight control system |
| US20170008239A1 (en) * | 2013-11-22 | 2017-01-12 | Johns Manville | System for producing a fully impregnated thermoplastic prepreg |
| CN208155424U (en) * | 2018-02-06 | 2018-11-27 | 安徽益佳通电池有限公司 | A kind of coating of lithium-ion battery pole piece sampling weighing device |
| CN109411704A (en) * | 2018-10-18 | 2019-03-01 | 安普瑞斯（无锡）有限公司 | A kind of li-ion electrode and lithium ion battery |
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2021
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905204A (en) * | 2010-07-30 | 2010-12-08 | 凯迈(洛阳)机电有限公司 | Pole piece coating production line and on-line sampling system thereof |
| CN102593255A (en) * | 2012-02-29 | 2012-07-18 | 苏州中澳光伏材料科技有限公司 | Solar cell back film production method and production line thereof |
| CN203155467U (en) * | 2013-04-02 | 2013-08-28 | 宁德新能源科技有限公司 | Extrusion coating weight control system |
| US20170008239A1 (en) * | 2013-11-22 | 2017-01-12 | Johns Manville | System for producing a fully impregnated thermoplastic prepreg |
| CN208155424U (en) * | 2018-02-06 | 2018-11-27 | 安徽益佳通电池有限公司 | A kind of coating of lithium-ion battery pole piece sampling weighing device |
| CN109411704A (en) * | 2018-10-18 | 2019-03-01 | 安普瑞斯（无锡）有限公司 | A kind of li-ion electrode and lithium ion battery |
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Application publication date: 20210622 |