CN103811720A - Device and method for preparing lithium-ion electrode diaphragm and modified isolating membrane - Google Patents
Device and method for preparing lithium-ion electrode diaphragm and modified isolating membrane Download PDFInfo
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- CN103811720A CN103811720A CN201410055395.5A CN201410055395A CN103811720A CN 103811720 A CN103811720 A CN 103811720A CN 201410055395 A CN201410055395 A CN 201410055395A CN 103811720 A CN103811720 A CN 103811720A
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
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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
- B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
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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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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Drying Of Solid Materials (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a device and a method for preparing a lithium-ion electrode diaphragm and a modified isolating membrane, belonging to the technical field of vacuum coating. The improvement device at least comprises a vacuum shell, a coating machine and a vacuum drying tunnel, wherein the vacuum drying tunnel is connected with a vacuum shell or two vacuum shells; the coating machine is arranged in the vacuum drying tunnel and the vacuum shell; an unreeling machine and a coating head of the coating machine are arranged in a left inlet/outlet door of the vacuum shell; a winding machine of the coating machine is arranged in a right inlet/outlet door of the vacuum shell. The method is characterized by changing coating treatment in a normal-temperature normal-pressure environment into coating treatment in a vacuum environment and guaranteeing the vacuum drying tunnel and the vacuum shell in a vacuum heat preservation state in the working process of the coating machine. The device is reasonable in structural design, uniform in heating and high in efficiency, has an energy-saving effect, achieves high recovery purity and recovery rate of medium solvents, enables the coated materials to be dried at low temperature, and can achieve coating of batch production in a vacuum state. The material coating quality is improved, the production efficiency is improved, and the production cost is reduced.
Description
Technical field
The invention belongs to lithium ion cell electrode preparing technical field, particularly a kind of device and method of preparing li-ion electrode diaphragm and modification barrier film.
Background technology
Lithium ion battery has become main energy storage and the energy-provision way of modern electronic equipment, especially, along with technical development and the application of electric automobile, requires more and more higher for key technology electrokinetic cell.Automobile power cell and the high-efficiency energy-storage battery of at present most possible industrialization and application are exactly lithium ion battery.The processing of the pole coating in lithium ion battery manufacture process and modification barrier film is extremely important and indispensable manufacturing process, current existing normal temperature and pressure environment coating is processed, that programming rate is slow, heating time is long, material is heated is inhomogeneous, heat insulation effect is poor, waste energy, the dielectric solvent rate of recovery is low and reclaim that purity is low, material pollutes, problem of environmental pollution ubiquity, and perplex for a long time battery production enterprise, cause the problems such as product cost height and poor stability.
Summary of the invention
The object of this invention is to provide a kind of device and method of preparing li-ion electrode diaphragm and modification barrier film, it is characterized in that, the device of described preparation li-ion electrode diaphragm and modification barrier film at least comprises a vacuum casing, a coating machine and a vacuum drying tunnel; Described vacuum drying tunnel connects a vacuum casing or two vacuum casings; Coating machine is arranged on respectively in vacuum drying tunnel and vacuum casing, and the unreeling machine of coating machine, dispense tip are arranged in the left import and export door of vacuum casing, and the winder of coating machine is arranged in the right import and export door of vacuum casing.
Described vacuum drying tunnel inwall is fixed heating plate, and vacuum drying tunnel outer wall arranges aspirating hole and air admission hole; Transport tape one end of coating machine is on unreeling machine, and the other end is through dispense tip, through behind heating plate centre on winder.
Described vacuum drying tunnel and vacuum casing all have heat-insulation layer, and its cross section is circular or square.
Described heating plate is adjustable with the distance that is fixed on the applying material both sides on transport tape.
The structure that described vacuum drying tunnel connects a vacuum casing is that vertical vacuum drying tunnel lower end is arranged on a vacuum casing, and at vacuum drying tunnel central supported heating plate, transport tape guide wheel is fixed on heating plate top; Vacuum drying tunnel top exterior walls arranges aspirating hole and air admission hole; The unreeling machine of coating machine, dispense tip are arranged in the left import and export door of vacuum casing, the winder of coating machine is arranged in the right import and export door of vacuum casing, transport tape one end of coating machine on unreeling machine, the other end after dispense tip, transport tape guide wheel on winder.
The structure of two vacuum casings of described vacuum drying tunnel connection is that the two ends of vacuum drying tunnel connect respectively a vacuum casing, fixes two heating plates at vacuum drying tunnel inwall, and vacuum drying tunnel outer wall downside arranges aspirating hole and air admission hole; The unreeling machine of coating machine, dispense tip are arranged in the left import and export door of left vacuum casing, the winder of coating machine is arranged in the right import and export door of right vacuum casing, transport tape one end of coating machine is on unreeling machine, and the other end is through dispense tip, through behind heating plate centre on winder.
The described modifying device that utilizes li-ion electrode diaphragm and barrier film improves the method for preparing li-ion electrode diaphragm and barrier film, it is characterized in that, specifically comprises:
1) just the coating of normal temperature and pressure environment is processed and is changed vacuum environment coating processing into, is arranged on respectively in vacuum drying tunnel and vacuum casing by coating machine;
2) at the fixing heating plate of vacuum drying tunnel inwall, vacuum drying tunnel outer wall arranges aspirating hole and air admission hole, guarantees that the interior vacuum drying tunnel of coating machine duration of work and vacuum casing are in vacuum heat-preserving state
,absolute truth reciprocal of duty cycle is 60～100Kpa;
3) distance of adjustment heating plate and applying material both sides;
4) can adopt the mode of heating of electricity, oil, water or vapour to heat heating plate, control heating-up temperature, guarantee that heating-up temperature is in the low temperature drying temperature range of the applying material of setting, its heating-up temperature is 50 ℃ to 150 ℃; Realize applying material and under vacuum state, produce coating in batches.
Beneficial effect of the present invention is that this apparatus structure is reasonable in design, excellent performance, it adopts the structure of vacuum heat-preserving, vacuum coated, vacuum drying, can realize applying material low temperature drying, be heated evenly, energy-conservation, efficient, dielectric solvent reclaims that purity is high and the rate of recovery is high, realize applying material produces in batches under vacuum state, greatly improve material coating quality, production efficiency, significantly reduce production costs.
Accompanying drawing explanation
Fig. 1 is the structural representation that vacuum drying tunnel connects two vacuum casings.
Fig. 2 is the structural representation that vacuum drying tunnel connects a vacuum casing.
In figure: right inlet/outlet 1, winder 2, vacuum casing 3, applying material 4, vacuum drying tunnel 5, aspirating hole 6, air admission hole 7, heating plate 8, vacuum casing 9, dispense tip 10, unreeling machine 11, left inlet/outlet 12, transport tape guide wheel 13.
Embodiment
The invention provides a kind of device and method of preparing li-ion electrode diaphragm and modification barrier film, below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
Preparation li-ion electrode diaphragm as shown in Figure 1 and Figure 2 and the apparatus structure schematic diagram of modification barrier film, in figure, the device of preparation li-ion electrode diaphragm and modification barrier film at least comprises a vacuum casing, a coating machine and a vacuum drying tunnel; Described vacuum drying tunnel and vacuum casing all have heat-insulation layer, and its cross section is circular or square.
Figure 1 shows that vacuum drying tunnel connects the structural representation of two vacuum casings, the two ends of vacuum drying tunnel 5 connect respectively left vacuum casing 9 and right vacuum casing 3, fix two heating plates 8 at vacuum drying tunnel 5 inwalls, vacuum drying tunnel outer wall downside arranges aspirating hole 6 and air admission hole 7; The unreeling machine 11 of coating machine, dispense tip 10 are arranged in the left import and export door 12 of left vacuum casing 9, the winder 2 of coating machine is arranged in the right import and export door 1 of right vacuum casing 3, transport tape one end of coating machine is on unreeling machine 11, the other end is through dispense tip 10, through behind two heating plate 8 centres on winder 2; Described heating plate 8 is adjustable with the distance that is fixed on the applying material both sides on transport tape.
Figure 2 shows that vacuum drying tunnel connects the structural representation of a vacuum casing, vertical vacuum drying tunnel 5 lower ends are arranged on a vacuum casing 3, and at vacuum drying tunnel 5 central supported heating plates 8, transport tape guide wheel 13 is fixed on heating plate 8 tops; Vacuum drying tunnel top exterior walls arranges aspirating hole 6 and air admission hole 7; The unreeling machine 11 of coating machine, dispense tip 10 are arranged in the left import and export door 12 of vacuum casing 3, the winder 2 of coating machine is arranged in the right import and export door 1 of vacuum casing 3, transport tape one end of coating machine is on unwinding and rewinding machine 11, and other end process dispense tip 10, transport tape guide wheel 13 are on winder 2.
The method of preparing li-ion electrode diaphragm and modification barrier film of the device of li-ion electrode diaphragm and modification barrier film is prepared in described utilization, specifically comprises:
1) coating of normal temperature and pressure environment is processed and changed vacuum environment coating processing into, be arranged on respectively in vacuum drying tunnel and vacuum casing by coating machine;
2) at the fixing heating plate of vacuum drying tunnel inwall, vacuum drying tunnel outer wall arranges aspirating hole and air admission hole, guarantees that the interior vacuum drying tunnel of coating machine duration of work and vacuum casing are in vacuum heat-preserving state, and Absolute truth reciprocal of duty cycle is 60～100Kpa;
3) adjust heating plate and the distance that is fixed on the applying material both sides on transport tape;
4) can adopt the mode of heating of electricity, oil, water or vapour to heat heating plate, control heating-up temperature, guarantee that heating-up temperature is in the low temperature drying temperature range of the applying material of setting, its heating-up temperature is 50 ℃ to 150 ℃; Realize applying material and under vacuum state, produce coating in batches.
Claims (6)
1. a device of preparing li-ion electrode diaphragm and modification barrier film, is characterized in that, the device of described preparation li-ion electrode diaphragm and modification barrier film at least comprises a vacuum casing, a coating machine and a vacuum drying tunnel; Described vacuum drying tunnel connects a vacuum casing or two vacuum casings; Coating machine is arranged on respectively in vacuum drying tunnel and vacuum casing, and the unreeling machine of coating machine, dispense tip are arranged in the left import and export door of vacuum casing, and the winder of coating machine is arranged in the right import and export door of vacuum casing;
Described vacuum drying tunnel inwall is fixed heating plate, and vacuum drying tunnel outer wall arranges aspirating hole and air admission hole; Transport tape one end of coating machine is on unreeling machine, and the other end is through dispense tip, through behind heating plate centre on winder.
2. a kind of device of preparing li-ion electrode diaphragm and modification barrier film according to claim 1, is characterized in that, described vacuum drying tunnel and vacuum casing all have heat-insulation layer, and its cross section is circular or square.
3. the device of preparing according to claim 1 li-ion electrode diaphragm and modification barrier film, is characterized in that, described heating plate is fixed on applying material both sides and distance is adjustable.
4. a kind of device of preparing li-ion electrode diaphragm and modification barrier film according to claim 1, is characterized in that, at vacuum drying tunnel central supported heating plate, transport tape guide wheel is fixed on heating plate top; Vacuum drying tunnel top exterior walls arranges aspirating hole and air admission hole; The unreeling machine of coating machine, dispense tip are arranged in the left import and export door of vacuum casing, the winder of coating machine is arranged in the right import and export door of vacuum casing, transport tape one end of coating machine is on winder, and the other end is through dispense tip, after transport tape guide wheel on unreeling machine.
5. a kind of device of preparing li-ion electrode diaphragm and modification barrier film according to claim 1, it is characterized in that, described vacuum drying tunnel connects two vacuum casings, fixes two heating plates at vacuum drying tunnel inwall, and vacuum drying tunnel outer wall downside arranges aspirating hole and air admission hole; The winder of coating machine, dispense tip are arranged in the left import and export door of left vacuum casing, the winder of coating machine is arranged in the right import and export door of right vacuum casing, transport tape one end of coating machine is on winder, and the other end is through dispense tip, through behind heating plate centre on unreeling machine.
6. utilize the preparation facilities of li-ion electrode diaphragm and modification barrier film to prepare a method for li-ion electrode diaphragm and modification barrier film, it is characterized in that, specifically comprise:
1) just the coating of normal temperature and pressure environment is processed and is changed vacuum environment coating processing into, is arranged on respectively in vacuum drying tunnel and vacuum casing by coating machine;
2) at the fixing heating plate of vacuum drying tunnel inwall, vacuum drying tunnel outer wall arranges aspirating hole and air admission hole, guarantees that the interior vacuum drying tunnel of coating machine duration of work and vacuum casing are in vacuum heat-preserving state, and Absolute truth reciprocal of duty cycle is between 60～100KPa;
3) adjust heating plate and the distance that is fixed on the applying material both sides on transport tape;
4) can adopt the mode of heating of electricity, oil, water or vapour to heat heating plate, control heating-up temperature, guarantee that heating-up temperature is in the low temperature drying temperature range of the applying material of setting, its heating-up temperature is 50 ℃ to 150 ℃ scopes; Realize applying material and under vacuum state, produce coating in batches.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410055395.5A CN103811720B (en) | 2014-02-19 | 2014-02-19 | The device and method of preparation li-ion electrode diaphragm and modification barrier film |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410055395.5A CN103811720B (en) | 2014-02-19 | 2014-02-19 | The device and method of preparation li-ion electrode diaphragm and modification barrier film |
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| CN103811720A true CN103811720A (en) | 2014-05-21 |
| CN103811720B CN103811720B (en) | 2016-05-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108704511A (en) * | 2018-08-29 | 2018-10-26 | 深圳市鸿三松实业有限公司 | A kind of fluid sealant tinuous production of liftable transposition |
| CN112403839A (en) * | 2020-11-30 | 2021-02-26 | 天津大学 | Large-scale preparation method and device of carbon dioxide separation multilayer composite membrane |
| CN113363667A (en) * | 2021-05-06 | 2021-09-07 | 惠州锂威新能源科技有限公司 | Production equipment of battery diaphragm and diaphragm |
| CN113751283A (en) * | 2021-09-03 | 2021-12-07 | 东莞市鹏锦机械科技有限公司 | Lithium battery pole piece/diaphragm coating equipment and process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921602A (en) * | 2012-11-14 | 2013-02-13 | 深圳市信宇人科技有限公司 | Micro-gravure coating machine |
| CN203708269U (en) * | 2014-02-13 | 2014-07-09 | 公安部沈阳消防研究所 | System for testing consistency of transmission device communication protocol |
-
2014
- 2014-02-19 CN CN201410055395.5A patent/CN103811720B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921602A (en) * | 2012-11-14 | 2013-02-13 | 深圳市信宇人科技有限公司 | Micro-gravure coating machine |
| CN203708269U (en) * | 2014-02-13 | 2014-07-09 | 公安部沈阳消防研究所 | System for testing consistency of transmission device communication protocol |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108704511A (en) * | 2018-08-29 | 2018-10-26 | 深圳市鸿三松实业有限公司 | A kind of fluid sealant tinuous production of liftable transposition |
| CN108704511B (en) * | 2018-08-29 | 2023-11-17 | 深圳市鸿三松实业有限公司 | Sealant continuous production line capable of lifting and replacing positions |
| CN112403839A (en) * | 2020-11-30 | 2021-02-26 | 天津大学 | Large-scale preparation method and device of carbon dioxide separation multilayer composite membrane |
| CN112403839B (en) * | 2020-11-30 | 2022-08-12 | 天津大学 | Large-scale preparation method and device of carbon dioxide separation multilayer composite membrane |
| CN113363667A (en) * | 2021-05-06 | 2021-09-07 | 惠州锂威新能源科技有限公司 | Production equipment of battery diaphragm and diaphragm |
| CN113751283A (en) * | 2021-09-03 | 2021-12-07 | 东莞市鹏锦机械科技有限公司 | Lithium battery pole piece/diaphragm coating equipment and process |
| CN113751283B (en) * | 2021-09-03 | 2023-03-10 | 东莞市鹏锦机械科技有限公司 | Lithium battery pole piece/diaphragm coating equipment |
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| CN103811720B (en) | 2016-05-25 |
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