CN110394283B - Lithium battery coating recovery system and slurry separating and recovering device thereof - Google Patents
Lithium battery coating recovery system and slurry separating and recovering device thereof Download PDFInfo
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- CN110394283B CN110394283B CN201910705063.XA CN201910705063A CN110394283B CN 110394283 B CN110394283 B CN 110394283B CN 201910705063 A CN201910705063 A CN 201910705063A CN 110394283 B CN110394283 B CN 110394283B
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- slurry
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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
- B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
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Abstract
The invention discloses a slurry separating and recycling device, which comprises a device frame body and at least two flow guide structures which are arranged at intervals along the length direction of the device frame body and are positioned at the top of the device frame body, wherein the device frame body is provided with a first recycling cavity and a second recycling cavity which are separated in the thickness direction of the device frame body, the first recycling cavity upwards penetrates through the top of the device frame body and is positioned between the two flow guide structures to form a first material return opening, the second recycling cavity upwards penetrates through the top of the device frame body and forms a second material return opening, and the flow guide structures extend to the second material return opening, so that the slurry separating and recycling device disclosed by the invention can separate and recycle residual tab adhesive and slurry after coating. In addition, the invention also discloses a lithium battery coating recovery system.
Description
Technical Field
The invention relates to the technical field of battery production, in particular to a lithium battery coating and recycling system and a slurry separating and recycling device thereof.
Background
The lithium ion battery has the advantages of high energy density, high output power, long charge and discharge life, wide working temperature range and the like, and is widely applied to various portable electronic devices. Along with the social progress, the requirements of people on portable electronic equipment are higher and higher, so that the requirements of people on the weight volume density and the capacity volume density of lithium ion batteries are also higher and higher, and more lithium ion batteries adopt aluminum plastic packaging shells. The battery adopting the aluminum plastic package needs to adopt the tab to connect the anode and the cathode in the battery with the outside because the shell is not conductive. The electrode tab is generally formed by compounding electrode tab glue and a metal belt in a hot-pressing manner, the positive electrode and the negative electrode generally respectively comprise a current collector and diaphragms distributed on the current collector, and the diaphragms are prepared by uniformly mixing active substances, conductive agents and binders in a solvent to prepare slurry, coating the slurry on the current collector through a coating device and drying the slurry. In order to facilitate processing and improve processing efficiency, the current application of the slurry to the current collector and the application of the tab adhesive to the metal strip are performed simultaneously, so that the tab adhesive and the slurry remained during the application are collected together in the same recycling device after the current collector is coated with the slurry and the metal strip is coated with the tab adhesive, and waste which cannot be recycled is generated.
Therefore, there is a need for a slurry separation and recovery device and a lithium battery coating and recovery system thereof, which can separate and recover the residual tab adhesive and slurry for coating, so as to overcome the above-mentioned drawbacks.
Disclosure of Invention
The invention aims to provide a slurry separating and recycling device capable of separating and recycling residual tab glue and slurry for coating.
Another object of the present invention is to provide a lithium battery coating recovery system capable of separately recovering the coating residual tab paste and slurry.
In order to achieve the above purpose, the slurry separation and recovery device of the present invention is suitable for separating and recovering slurry after coating a lithium battery, and comprises a device frame body and at least two diversion structures which are arranged at intervals along the length direction of the device frame body and are positioned at the top of the device frame body, wherein the device frame body is provided with a first recovery cavity and a second recovery cavity which are separated in the thickness direction, the first recovery cavity upwards penetrates through the top of the device frame body and is positioned between the two diversion structures to form a first feed back opening, the second recovery cavity upwards penetrates through the top of the device frame body to form a second feed back opening, and the diversion structures extend to the second feed back opening.
Preferably, the flow guiding structure is arranged in a vertical inclined manner, the lower end of the flow guiding structure extends to the second feed back opening, the first recovery cavity and the second recovery cavity respectively extend along the length direction of the device frame body, and the cavity bottoms of the first recovery cavity and the second recovery cavity are respectively arranged in a vertical inclined manner.
Preferably, the inclination direction of the cavity bottom of the first recycling cavity is opposite to the inclination direction of the cavity bottom of the second recycling cavity.
Preferably, the device frame body is further provided with a first discharge hole and a second discharge hole, the first discharge hole is communicated with the bottom of the first recovery cavity, and the second discharge hole is communicated with the bottom of the second recovery cavity.
Preferably, the first discharging hole is communicated with the lowest part of the cavity bottom of the first recycling cavity, and the second discharging hole is communicated with the lowest part of the cavity bottom of the second recycling cavity.
Preferably, the flow guiding structure is provided with a flow guiding channel communicated with the second feed back opening.
Preferably, the flow guiding structure is detachably mounted on the top of the device frame body.
In order to achieve the above purpose, the lithium battery coating recovery system comprises a coating die head, a slurry separating and recovering device, a guide plate body, a slurry feeding device and a tab adhesive feeding device, wherein a coating unit is arranged on the coating die head, the coating unit comprises a slurry outlet and a sizing material outlet positioned outside two sides of the slurry outlet, the slurry outlet is communicated with the slurry feeding device, the sizing material outlet is communicated with the tab adhesive feeding device, the guide plate body is positioned right below the slurry outlet, the upper end of the guide plate body extends into the slurry outlet, the guide plate body is arranged at the position of the device frame body or the coating die head, the lower end of the guide plate body is arranged in the first feed back opening, and the sizing material outlet is positioned right above the guide structure.
Preferably, a diversion gap for part of the slurry in the slurry outlet to flow to the sizing outlet is arranged between the upper end of the guide plate body and the side wall of the slurry outlet.
Preferably, the cross section of the guide plate body is 匚.
Compared with the prior art, the slurry separating and recycling device comprises the device frame body and at least two flow guide structures which are arranged at intervals along the length direction of the device frame body and are positioned at the top of the device frame body, the device frame body is provided with a first recycling cavity and a second recycling cavity which are separated in the thickness direction of the device frame body, the first recycling cavity upwards penetrates through the top of the device frame body and is positioned between the two flow guide structures to form a first recycling hole, the second recycling cavity upwards penetrates through the top of the device frame body and forms a second recycling hole, the flow guide structures extend to the second recycling hole, so that residual slurry during coating can fall into the first recycling cavity through the first recycling hole, and residual slurry during coating and part of slurry fall into the second recycling cavity through the second recycling hole after falling into the flow guide structures.
It can be understood that, because the lithium battery coating and recycling system of the invention comprises the slurry separating and recycling device, the lithium battery coating and recycling system of the invention can separate and recycle the residual tab glue and slurry, thereby effectively saving the material cost.
Drawings
Fig. 1 is a schematic perspective view of a lithium battery coating recovery system according to the present invention.
Fig. 2 is a schematic perspective view of the slurry separating and recovering apparatus in fig. 1.
Fig. 3 is a schematic perspective view of another angle of the slurry separating and recovering apparatus of fig. 2.
Fig. 4 is a top view of the slurry separation and recovery apparatus of fig. 2.
Fig. 5 is a cross-sectional view taken along line A-A of fig. 4.
Fig. 6 is a sectional view taken along line B-B of fig. 4.
Fig. 7 is a sectional view taken along line C-C of fig. 4.
Detailed Description
In order to describe the technical content and constructional features of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
As shown in fig. 1, the lithium battery coating and recycling system 100 of the present invention includes a coating die 10, a slurry separating and recycling device 20, a guide plate 30, a slurry feeding device 40 and a tab adhesive feeding device 50, where the coating die 10 is provided with a coating unit 11, the coating unit 11 includes a slurry outlet 111 and a slurry outlet 112 located outside two sides of the slurry outlet 111, the slurry outlet 111 is communicated with the slurry feeding device 40, the slurry outlet 112 is communicated with the tab adhesive feeding device 50, the guide plate 30 is located under the slurry outlet 111, and the upper end of the guide plate 30 extends into the slurry outlet 111, the guide plate 30 is mounted at the coating die 10, and of course, according to needs, the guide plate 30 can be mounted at a device frame 21 described below, the lower end of the guide plate 30 is disposed at a first return opening 213 described below, the slurry outlet 112 described below is located right above a guide structure 22 described below, the slurry remaining after the current collector is coated by the slurry outlet 111 is dropped onto the guide plate 30, the slurry flows through the first return opening 213 to the second return opening 213 after the current collector is dropped into the tab adhesive collector structure 22, and the current collector material is separated from the second collector structure 212 after the current collector structure is dropped into the tab material is recovered, and the current collector structure is separated from the current collector structure is recovered. Specifically, a portion of the slurry in the slurry outlet 111 flows to the diversion gap 113 at the slurry outlet 112 between the upper end of the deflector body 30 and the sidewall of the slurry outlet 111, and the current collector and the tab are connected to each other, so that the slurry flowing out of the diversion gap 113 can fully coat the current collector during coating, and the slurry flowing out of the diversion gap 113 and the residual tab glue finally form a mixture to be coated, fall onto the deflector structure 22 and then fall into the second recovery cavity 212 for collection. In order to ensure that the slurry and the tab adhesive are not mutually crossed and mixed during recycling, the cross section of the guide plate body 30 is 匚. More specifically, the following is:
As shown in fig. 1 to 7, the slurry separating and recycling device 20 includes a device frame 21 and at least two guide structures 22 arranged at intervals along the length direction of the device frame 21 and located at the top of the device frame 21, the device frame 21 is provided with a first recycling cavity 211 and a second recycling cavity 212 separated in the thickness direction, the first recycling cavity 211 penetrates upwards through the top of the device frame 21 and is located between the two guide structures 22 to form a first recycling opening 213, the second recycling cavity 212 penetrates upwards through the top of the device frame 21 and forms a second recycling opening 214, the guide structures 22 extend to the second recycling opening 214, so that the residual slurry after coating can fall into the first recycling cavity 211 through the first recycling opening 213, and the residual slurry after coating falls into the second recycling cavity 212 through the second recycling opening 214. Specifically, the flow guiding structure 22 is arranged obliquely up and down, the lower end of the flow guiding structure 22 extends to the second feed back opening 214, the flow guiding structure 22 has a flow guiding channel 221 communicated with the second feed back opening 214, and the mixture can fall into the second feed back opening 214 through the flow guiding channel 221, for example, the flow guiding structure 22 is a groove-shaped plate body, so that an operator can conveniently observe the situation of the mixture, and of course, the flow guiding structure 22 can also be provided as a tubular body as required, and the mixture can be guided to the second feed back opening 214, so that the invention is not limited thereto. More specifically, the flow guiding structure 22 is detachably mounted on the top of the device frame 21, so that the flow guiding structure 22 can be adjusted according to the number of coating strips and the width of the slurry outlet 111, so that the flow guiding structure 22 can effectively guide the mixture.
As shown in fig. 2 to 7, the first recycling cavity 211 and the second recycling cavity 212 extend along the length direction of the device frame 21, and the bottoms of the first recycling cavity 211 and the second recycling cavity 212 are respectively arranged in an up-down inclined manner, so that the slurry falling into the first recycling cavity 211 can be mutually collected together, the slurry can be conveniently discharged, the slurry is prevented from being too quickly volatilized and denatured, and the tab glue and part of the slurry falling into the second recycling cavity 212 can be mutually collected together, so that the mixture can be conveniently discharged. More specifically, the inclination direction of the bottom of the first recycling cavity 211 is opposite to the inclination direction of the bottom of the second recycling cavity 212, the device frame 21 is further provided with a first discharge hole 215 and a second discharge hole 216, the first discharge hole 215 is communicated with the bottom of the first recycling cavity 211, and the second discharge hole 216 is communicated with the bottom of the second recycling cavity 212, so as to facilitate leading out the collected slurry and the mixture from different positions respectively and avoid mutual influence of leading out the slurry and the mixture.
The working principle of the lithium battery coating recovery system 100 of the present invention will be described with reference to fig. 1 to 7: the current collectors to be coated are conveyed from the lower part of the coating die head 10, each current collector is correspondingly arranged below each slurry outlet 111, the slurry feeding device 40 pumps slurry to the slurry outlet 111 on the coating unit 11, the tab adhesive feeding device 50 pumps tab adhesive to the slurry outlet 112 on the coating unit 11, the slurry flowing out of the slurry outlet 111 is coated on the current collector, the tab adhesive flowing out of the slurry outlet 112 is coated on the tab, most of the residual slurry coated on the current collector directly falls onto the guide plate body 30, then falls into the first recovery cavity 211 through the first feed back opening 213 to be collected in a concentrated mode, and a small part of the slurry flows to the vicinity of the slurry outlet 112 from the shunt gap 113 to coat the edge of the current collector. The residual tab glue and a small part of the slurry coated on the tab fall onto the diversion structure 22, are diverted from the diversion channel 221 of the diversion structure 22 to the second feed back opening 214, and fall into the second recovery cavity 212 through the second feed back opening 214 for centralized collection. The slurry collected in the first recovery cavity 211 is collected at one side of the cavity bottom of the first recovery cavity 211 and finally discharged from the first discharge hole 215 for recovery, the mixture collected in the second recovery cavity 212 is collected at one side of the cavity bottom of the second recovery cavity 212 and finally discharged from the second discharge hole 216 for further treatment, so that the slurry and the tab glue remained in coating can be separated and recovered, the collected slurry is positioned in the first recovery cavity 211, the collected mixture is positioned in the second recovery cavity 212, and the working principle is not influenced.
Compared with the prior art, the slurry separating and recycling device 20 of the present invention comprises a device frame 21 and at least two guide structures 22 arranged at intervals along the length direction of the device frame 21 and located at the top of the device frame 21, wherein the device frame 21 is provided with a first recycling cavity 211 and a second recycling cavity 212 which are separated in the thickness direction, the first recycling cavity 211 penetrates upwards through the top of the device frame 21 and is located between the two guide structures 22 to form a first recycling opening 213, the second recycling cavity 212 penetrates upwards through the top of the device frame 21 and forms a second recycling opening 214, and the guide structures 22 extend to the second recycling opening 214, so that the residual slurry during coating can fall into the first recycling cavity 211 through the first recycling opening 213, and part of the slurry falls into the second recycling cavity 212 through the second recycling opening 214 after falling into the guide structures.
It can be appreciated that, since the lithium battery coating and recycling system 100 of the present invention includes the slurry separating and recycling device 20, the lithium battery coating and recycling system 100 of the present invention can also separate and recycle the residual tab glue and slurry, thereby effectively saving the material cost.
The foregoing disclosure is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (8)
1. The utility model provides a thick liquids separation recovery unit, is applicable to the thick liquids separation recovery after to the lithium cell coating, its characterized in that: the device comprises a device frame body and at least two flow guide structures which are arranged at intervals along the length direction of the device frame body and are positioned at the top of the device frame body, wherein the device frame body is provided with a first recovery cavity and a second recovery cavity which are separated in the thickness direction of the device frame body, the first recovery cavity upwards penetrates through the top of the device frame body and is positioned between the two flow guide structures to form a first feed back opening, the second recovery cavity upwards penetrates through the top of the device frame body and forms a second feed back opening, the flow guide structures extend to the second feed back opening, the flow guide structures are arranged in an up-down inclined mode, the lower ends of the flow guide structures extend to the second feed back opening, the first recovery cavity and the second recovery cavity respectively extend along the length direction of the device frame body, the cavity bottoms of the first recovery cavity and the second recovery cavity are respectively arranged in an up-down inclined mode, and the flow guide structures are detachably arranged at the top of the device frame body.
2. The slurry separating and recovering apparatus according to claim 1, wherein a direction of inclination of a bottom of the first recovering chamber is opposite to a direction of inclination of a bottom of the second recovering chamber.
3. The slurry separating and recycling device according to claim 1, wherein the device frame body is further provided with a first discharge port and a second discharge port, the first discharge port is communicated with the bottom of the first recycling cavity, and the second discharge port is communicated with the bottom of the second recycling cavity.
4. A slurry separating and recovering apparatus according to claim 3, wherein said first discharge port communicates with a lowest part of a bottom of said first recovery chamber, and said second discharge port communicates with a lowest part of a bottom of said second recovery chamber.
5. The slurry separation and recovery apparatus according to claim 1, wherein the flow guiding structure has a flow guiding passage communicating with the second feed back port.
6. The utility model provides a lithium cell coating recovery system, includes coating die head, guide plate body, thick liquids feedway and utmost point ear glues feedway, be equipped with the coating unit on the coating die head, the coating unit include thick liquids export and be located the thick liquids export outside the thick liquids export both sides, the thick liquids export with thick liquids feedway intercommunication, the thick liquids export with utmost point ear glues feedway intercommunication, the guide plate body is located under the thick liquids export, just the upper end of guide plate body stretches into in the thick liquids export, its characterized in that, lithium cell coating recovery system still includes according to the thick liquids separation recovery unit of any one of claims 1 to 5, the guide plate body install in device support body or coating die head department, the lower extreme of guide plate body set up in the first feed back mouth, the glue export is located directly over the guide structure.
7. The lithium battery coating recovery system of claim 6, wherein a shunt gap is provided between the upper end of the deflector body and the side wall of the slurry outlet for a portion of the slurry in the slurry outlet to flow to the sizing outlet.
8. The lithium battery coating recovery system of claim 6, wherein the cross-section of the baffle body is "匚" shaped.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910705063.XA CN110394283B (en) | 2019-07-31 | 2019-07-31 | Lithium battery coating recovery system and slurry separating and recovering device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705063.XA CN110394283B (en) | 2019-07-31 | 2019-07-31 | Lithium battery coating recovery system and slurry separating and recovering device thereof |
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| CN110394283A CN110394283A (en) | 2019-11-01 |
| CN110394283B true CN110394283B (en) | 2024-10-08 |
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| CN210965747U (en) * | 2019-07-31 | 2020-07-10 | 江苏塔菲尔新能源科技股份有限公司 | Lithium battery coating recovery system and slurry separation and recovery device thereof |
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| JP3116297B2 (en) * | 1994-08-03 | 2000-12-11 | 東京エレクトロン株式会社 | Processing method and processing apparatus |
| US6547617B1 (en) * | 1998-07-08 | 2003-04-15 | Hiroyuki Kawamura | Plasma display panel manufacturing method for manufacturing a plasma display panel with superior picture quality, a manufacturing apparatus and a phosphor ink |
| DE10320146A1 (en) * | 2003-05-06 | 2004-11-25 | Voith Paper Patent Gmbh | Multi-layer application device for applying application medium by means of at least one multi-layer curtain or veil |
| DE10359117A1 (en) * | 2003-12-17 | 2005-07-28 | Voith Paper Patent Gmbh | Curtain applicator unit |
| KR101183680B1 (en) * | 2010-03-04 | 2012-09-17 | (주)세명백트론 | Gravure coating device having double chamber |
| CN106423755B (en) * | 2016-11-22 | 2019-06-25 | 京东方科技集团股份有限公司 | Coating apparatus, the method and its clean method that coating fluid is recycled using it |
| CN206673019U (en) * | 2017-04-27 | 2017-11-24 | 天津市捷威动力工业有限公司 | Lithium ion power cell pole flakes edge foil coating system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237943A (en) * | 2005-03-11 | 2008-08-06 | 沃依特专利有限责任公司 | Curtain applicator |
| CN210965747U (en) * | 2019-07-31 | 2020-07-10 | 江苏塔菲尔新能源科技股份有限公司 | Lithium battery coating recovery system and slurry separation and recovery device thereof |
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Effective date of registration: 20220210 Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Applicant after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: 210000 249 Lantian Road, Airport Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province Applicant before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Applicant before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Applicant before: SHENZHEN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |
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Country or region after: China Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Applicant after: Jiangsu Zhengli New Energy Battery Technology Co.,Ltd. Address before: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Applicant before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |
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