CN201906689U - Coating device for producing lithium ion battery diaphragm - Google Patents
Coating device for producing lithium ion battery diaphragm Download PDFInfo
- Publication number
- CN201906689U CN201906689U CN2010205549436U CN201020554943U CN201906689U CN 201906689 U CN201906689 U CN 201906689U CN 2010205549436 U CN2010205549436 U CN 2010205549436U CN 201020554943 U CN201020554943 U CN 201020554943U CN 201906689 U CN201906689 U CN 201906689U
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- China
- Prior art keywords
- coating
- applicator roll
- lithium ion
- battery diaphragm
- roller
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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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- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model relates to a coating device for producing a lithium ion battery diaphragm, which comprises a coating liquid tank, as well as a coating roller and a driven press roller which are installed on a machine frame, wherein the coating roller connected with a power source is located in the coating liquid tank; the driven press roller is pressed on the coating roller; a scraper is installed on the machine frame and is located at the feeding side of the coating roller; and at least two temperature adjusting rollers are installed on the machine frame located at the feeding side of the coating roller. When entering the coating roller, a porous diaphragm firstly passes through the at least two temperature adjusting rollers for control the thickness, so as to coat the porous diaphragm at a constant-temperature state; therefore, the uniform thickness of a coating layer is kept, and the performance stability of the battery diaphragm is realized.
Description
Technical field
The utility model relates to a kind of apparatus for coating of producing lithium ion battery separator, belongs to the apparatus for coating technical field of lithium ion battery separator.
Background technology
Lithium battery mainly is made up of positive electrode, negative material, electrolyte and battery diaphragm, and battery diaphragm is one of crucial interior layer assembly.The performance of battery diaphragm has determined the interfacial structure, internal resistance of battery etc., directly influence the key characteristics such as capacity, cyclicity, charging and discharging currents density of battery, so the battery diaphragm of excellent performance has important effect for the combination property that improves lithium battery.Continuous development along with domestic lithium ion battery, the battery diaphragm manufacturing process of lithium ion is variation progressively, battery diaphragm is to apply another kind of polymeric layer with polypropylene porous film (PP) or polyethylene (PE) porous film surface, or first monomer, and then polymerization at polypropylene porous film or these polymer substrates of polyethylene porous membrane surface applied.Separate positive pole and negative pole by battery diaphragm, when preventing short circuit, can promote the electrolyte retention of battery diaphragm again, and certain cementitiousness be arranged, so the quality that coating process can influence lithium ion battery is carried out on polypropylene porous film or polyethylene porous membrane surface with both positive and negative polarity.But conventional apparatus for coating is by being coated with liquid bath and rack-mounted applicator roll and being constituted by dynamic pressure roller, power-actuated applicator roll rotates, then be pressed on the applicator roll by dynamic pressure roller, when polypropylene porous film or polyethylene porous membrane by applicator roll and between by dynamic pressure roller, applicator roll rotates the coating fluid that will speckle with polymer substrate and is coated in polypropylene porous film or polyethylene porous membrane surface.But because the production environment temperature exists difference all the time, and polypropylene porous film or polyethylene porous membrane and coating fluid are to the difference of the responsive adaptedness of temperature, so cause the thickness and the coating layer uneven thickness of polypropylene porous film or polyethylene porous membrane, make that the battery diaphragm performance of system is extremely unstable, to the instability that battery performance is become, degradation.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, and is economical and practical, keeps coating layer thickness even, the apparatus for coating of the production lithium ion battery separator of battery diaphragm stable performance.
The utility model is that the technical scheme that achieves the above object is: a kind of apparatus for coating of producing lithium ion battery separator, comprise coating liquid bath and rack-mounted applicator roll and by dynamic pressure roller, the applicator roll that is connected with power is positioned at the coating liquid bath, be pressed on the applicator roll by dynamic pressure roller, scraper is installed on the frame and is positioned at applicator roll charging one side, it is characterized in that: on the described frame that is positioned at applicator roll charging one side at least two temperature adjustment rollers are installed.
The utility model is in charging one side of applicator roll, at least two temperature adjustment rollers also are installed on frame, when polypropylene porous film or polyethylene porous membrane enter applicator roll, owing to will pass through at least two temperature adjustment rollers earlier, so can control the thickness of polypropylene porous film or polyethylene porous membrane by a plurality of temperature adjustment rollers, and keep polypropylene porous film or polyethylene porous membrane under temperature constant state, to apply, make the thickness of coating layer even, the battery diaphragm stable performance, the utility model is simple in structure, economical and practical, be convenient to existing apparatus for coating is reequiped.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Wherein: 1-is by dynamic pressure roller, the 2-scraper, and the 3-applicator roll, 4-is coated with liquid bath, 5-coating fluid, 6-perforated membrane, 7-temperature adjustment roller.
The specific embodiment
See shown in Figure 1, the apparatus for coating of production lithium ion battery separator of the present utility model, comprise coating liquid bath 4, applicator roll 3 and by dynamic pressure roller 1, applicator roll 3 and be installed on the frame by dynamic pressure roller 1, the applicator roll 3 that is connected with power is positioned at coating liquid bath 4, be in the coating liquid bath 4 coating fluid 5 is arranged, by 3 rotations of power drive applicator roll coating fluid 5 is sticked on the applicator roll 3, and be pressed on the applicator roll 3 by dynamic pressure roller 1, when perforated membrane 6 during by applicator roll 3 with by dynamic pressure roller 1, coating fluid 5 on the applicator roll 3 is coated in perforated membrane 6 surfaces, and scraper 2 is installed on the frame and be positioned at applicator roll 3 chargings one side, needs are coated in coating fluid 5 drawouts on the perforated membrane 6, to keep certain thickness, the utility model is positioned on the frame of applicator roll 3 chargings one side at least two temperature adjustment rollers 7 is installed, when perforated membrane 6 passes through two temperature adjustment rollers 7 earlier, perforated membrane 6 is heated or cools off, the uniformity that keeps perforated membrane 6 thickness earlier, multiple-hole die 6 is applied under isoperibol, and make the consistency of thickness of battery diaphragm, the utility model is according to different seasons and material, the temperature of two temperature adjustment rollers 7 is controlled between 0 ℃-90 ℃, between 20 ℃-60 ℃ of the temperature controls of best two temperature adjustment rollers 7, because coating layer thickness is even, make the battery diaphragm stable performance.
Claims (1)
1. apparatus for coating of producing lithium ion battery separator, comprise coating liquid bath (4) and rack-mounted applicator roll (3) and by dynamic pressure roller (1), the applicator roll that is connected with power (3) is positioned at coating liquid bath (4), be pressed on the applicator roll (3) by dynamic pressure roller (1), scraper (2) is installed on the frame and is positioned at applicator roll (3) charging one side, it is characterized in that: on the described frame that is positioned at applicator roll (3) charging one side at least two temperature adjustment rollers (7) are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205549436U CN201906689U (en) | 2010-09-29 | 2010-09-29 | Coating device for producing lithium ion battery diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205549436U CN201906689U (en) | 2010-09-29 | 2010-09-29 | Coating device for producing lithium ion battery diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201906689U true CN201906689U (en) | 2011-07-27 |
Family
ID=44298899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205549436U Expired - Fee Related CN201906689U (en) | 2010-09-29 | 2010-09-29 | Coating device for producing lithium ion battery diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201906689U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500524A (en) * | 2011-11-08 | 2012-06-20 | 东莞新能源科技有限公司 | Process for coating lithium battery |
| CN102509653A (en) * | 2011-10-29 | 2012-06-20 | 无锡万洪电子机械有限公司 | Capacitor aluminum foil gumming mechanism |
| CN110694870A (en) * | 2015-03-31 | 2020-01-17 | 帝人株式会社 | Apparatus for manufacturing composite film |
| CN113053669A (en) * | 2021-03-31 | 2021-06-29 | 深圳市金联信科技有限公司 | Element winding and roll coating method |
| CN113053670A (en) * | 2021-03-31 | 2021-06-29 | 深圳市金联信科技有限公司 | Core pack and winding method thereof |
| CN116878195A (en) * | 2023-09-08 | 2023-10-13 | 泰州衡川新能源材料科技有限公司 | Cooling scraper component for lithium battery ceramic diaphragm coating machine |
-
2010
- 2010-09-29 CN CN2010205549436U patent/CN201906689U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509653A (en) * | 2011-10-29 | 2012-06-20 | 无锡万洪电子机械有限公司 | Capacitor aluminum foil gumming mechanism |
| CN102509653B (en) * | 2011-10-29 | 2013-12-11 | 无锡万洪电子机械有限公司 | Capacitor aluminum foil gumming mechanism |
| CN102500524A (en) * | 2011-11-08 | 2012-06-20 | 东莞新能源科技有限公司 | Process for coating lithium battery |
| CN102500524B (en) * | 2011-11-08 | 2014-12-10 | 东莞新能源科技有限公司 | Process for coating lithium battery |
| CN110694870A (en) * | 2015-03-31 | 2020-01-17 | 帝人株式会社 | Apparatus for manufacturing composite film |
| CN113053669A (en) * | 2021-03-31 | 2021-06-29 | 深圳市金联信科技有限公司 | Element winding and roll coating method |
| CN113053670A (en) * | 2021-03-31 | 2021-06-29 | 深圳市金联信科技有限公司 | Core pack and winding method thereof |
| CN116878195A (en) * | 2023-09-08 | 2023-10-13 | 泰州衡川新能源材料科技有限公司 | Cooling scraper component for lithium battery ceramic diaphragm coating machine |
| CN116878195B (en) * | 2023-09-08 | 2023-11-14 | 泰州衡川新能源材料科技有限公司 | Cooling scraper component for lithium battery ceramic diaphragm coating machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20190929 |