CN206163607U - Improve device of lithium cell negative pole coating process binder come -up - Google Patents
Improve device of lithium cell negative pole coating process binder come -up Download PDFInfo
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- CN206163607U CN206163607U CN201621191321.5U CN201621191321U CN206163607U CN 206163607 U CN206163607 U CN 206163607U CN 201621191321 U CN201621191321 U CN 201621191321U CN 206163607 U CN206163607 U CN 206163607U
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- electric field
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- lithium battery
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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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Abstract
The utility model provides an improve device of lithium cell negative pole coating process binder come -up, including electrical power generating system, electric field strength adjusting device 9, electric field strength collection system 8, oven 1 and electric field electrode 2, electrical power generating system connects electric field strength adjusting device 9's input, electric field strength adjusting device 9's output is connected the electric field electrode 2, electric field strength collection system 8's intensity sensor is in the unsettled setting between 4 of electric field electrode 2 and negative pole coating, electric field electrode 2 sets up 1 interior upper and lower surface in the oven. An improve device of lithium cell negative pole coating process binder come -up, through the size of adjustment electric field action power, control binder molecule is along with the power that upwards transports of moisture, ensures that the adhesion stress molecule is relatively stable in the position at pole piece vertical interface, realizes that the binder is at the fore -and -aft evenly distributed of pole piece.
Description
Technical field
The utility model belongs to battery manufacturing field, and more particularly, to one kind cathode of lithium battery coating process binding agent is improved
The device of floating.
Background technology
Along with the continuous improvement of people's demand, electronic product is proposed increasingly to the performance and thickness of lithium ion battery
High requirement, and the cathode pole piece quality that the principal element of lithium ion battery thickness is lithium battery is affected, cathode pole piece expansion rate
Lower, battery will be thinner, and battery energy density is higher.Cathode pole piece expansion rate mainly receives negative material, binding agent and painting
The factors such as cloth technique affect, and wherein distribution situation of the binding agent in pole piece longitudinal direction has obvious action to negative pole expansion rate.Therefore,
Distribution of the binding agent in pole piece longitudinal direction is increasingly paid attention to by battery manufacture manufacturer.
Under existing technical conditions, current lithium ion battery generally adopts air blast in manufacturing process after negative pole coating
(hot blast) be dried pattern remove solvent, in dry run, in the wet negative pole coating of negative pole contained moisture pole piece longitudinal direction by
(near Copper Foil area) moves to negative pole coating surface for bottom, is finally reached the purpose of pole piece drying.And moisture is led to by pole piece bottom
Drying is crossed while transport upwards, the binding agent in cathode size can upwards be transported with moisture and to the diffusion of pole piece top layer, led
Binding agent is uneven in pole piece longitudinal component after causing to be dried, and causes the increase of pole piece expansion rate and negative pole coating to come off from Copper Foil
(demoulding).
The content of the invention
In view of this, the utility model is directed to a kind of dress for improving cathode of lithium battery coating process binding agent floating
Put, to be acted on by electric field force, it is ensured that cohesive force molecule is relatively stable realizing that binding agent exists in the position at pole piece longitudinal direction interface
Pole piece is longitudinal to be uniformly distributed.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of device for improving cathode of lithium battery coating process binding agent floating, including the regulation of power-supply system, electric-field intensity
Device 9, electric-field intensity harvester 8, baking oven 1 and electric field electrode 2；
The input of power-supply system connection electric-field intensity adjusting means 9, the output end connection electricity of electric-field intensity adjusting means 9
Field plate 2, the intensity sensor of electric-field intensity harvester 8 is vacantly arranged between the electric field electrode 2 and negative pole coating 4,
Electric field electrode 2 is arranged on the upper and lower surface in baking oven 1.
Further, power-supply system includes AC power input 6 and exchange turns DC Module 7, and AC power output 6 connects
Exchange turns the input of DC Module 7.
Further, electric-field intensity adjusting means 9 includes field current adjusting apparatus and electrode height adjuster, electric field electricity
The output end of flow adjusting device is connected with the input of electric field electrode 2, and electrode height adjuster is connected with electric field electrode 2.
Using electrode height adjuster, the height of each electric field electrode 2 can respectively be adjusted, realized negative to lithium battery
Pole coating belt surface applies suitable electric field force, realizes optimum effect.
Further, electric-field intensity adjusting means 9 is provided with the digital wash or pointer display table for showing electric-field intensity.
According to the display of electric-field intensity electric-field intensity can be adjusted immediately, to realize that field intensity parameter is wanted controllable
In asking.
Further, the upper and lower surface in baking oven 1 of electric field electrode 2 is arranged with multiple, and electric field electrode 2 is detachable peace
Dress.
Further, each electric field electrode 2 is arranged along the tape transport direction of cathode of lithium battery coating zone.
Unwanted electric field electrode 2 can at any time be dismantled according to the configuration requirement to electric field, realize setting the optimization of electric field
Meter.
Further, AC power input 6 can be input into for 380V or 220V alternating currents.
Relative to prior art, a kind of device for improving cathode of lithium battery coating process binding agent floating of the present utility model
Have the advantage that：
A kind of device for improving cathode of lithium battery coating process binding agent floating of the present utility model, is connected by power-supply system
Electric field electrode, electric-field intensity harvester immediately monitoring electric-field intensity, electric-field intensity adjusting means adjusts electric-field intensity immediately, can
To be effectively improved binding agent floating, it is to avoid because binding agent genesis analysis inequality causes pole piece expansion rate to increase, it is to avoid the energy content of battery
Density is reduced, and the utility model improves energy density and capability retention of the battery in cyclic process.Effectively increase product
Quality, can on a large scale use in battery production, and application effect is good, and use cost is low, dependable performance.
Description of the drawings
The accompanying drawing for constituting a part of the present utility model is used for providing further understanding to of the present utility model, and this practicality is new
The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
The apparatus structure that Fig. 1 floats for a kind of improvement cathode of lithium battery coating process binding agent of the utility model embodiment
Schematic diagram；
The principle of device that Fig. 2 floats for a kind of improvement cathode of lithium battery coating process binding agent of the utility model embodiment
Schematic diagram.
Description of reference numerals：
1- baking ovens；2- electric field electrodes；3- electrode height adjusters；4- negative pole coatings；5- bonding agent molecules；6- AC powers
Input；7- exchanges turn DC Module；8- electric-field intensity harvesters；9- electric-field intensity adjusting meanss.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " is
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates
Or the device or element of hint indication with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that
It is to restriction of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or hint relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, can be by concrete condition understanding
State concrete meaning of the term in the utility model.
Below with reference to the accompanying drawings and in conjunction with the embodiments describing the utility model in detail.
As shown in Fig. 2 a kind of device for improving cathode of lithium battery coating process binding agent floating, including power-supply system, electricity
Field intensity adjusting means 9, electric-field intensity harvester 8, baking oven 1 and electric field electrode 2；Power-supply system connection electric-field intensity adjusts dress
9 input is put, the output end connection electric field electrode 2 of electric-field intensity adjusting means 9, the intensity of electric-field intensity harvester 8 is passed
Sensor is vacantly arranged between the electric field electrode 2 and negative pole coating 4, and electric field electrode 2 is arranged on the upper and lower surface in baking oven 1.
In the practical application of the present embodiment, cathode of lithium battery coating is arranged at the centre of the internal electric field electrode 2 of baking oven 1,
Power-on system, according to the field intensity index of electric-field intensity harvester 8, changes the parameter of electric-field intensity adjusting means 9, with reality
The electric field force now cathode of lithium battery being coated with needed for belt surface applies.
As shown in Fig. 2 power-supply system includes AC power input 6 and exchange turns DC Module 7, AC power input 6 connects
Connect the input that exchange turns DC Module 7.
As shown in Figure 1-2, electric-field intensity adjusting means 9 includes field current adjusting apparatus and electrode height adjuster, electricity
The output end of field current adjusting apparatus is connected with the input of electric field electrode 2, and electrode height adjuster is connected with electric field electrode 2.
Using electrode height adjuster 3, the height of each electric field electrode 2 can respectively be adjusted, to realize to different rule
The cathode of lithium battery coating belt surface of lattice applies suitable electric field force, receives the bonding agent molecule 5 in negative pole coating negative pole coating 4
Electric field force effect control, is effectively improved the floating situation of bonding agent molecule 5, realizes optimum effect.
As shown in Fig. 2 electric-field intensity adjusting means 9 is provided with the digital wash or pointer display table for showing electric-field intensity.
According to the display of electric-field intensity electric-field intensity can be adjusted immediately, to realize that field intensity parameter is wanted controllable
In asking.
As shown in figure 1, the upper and lower surface in baking oven 1 of electric field electrode 2 is arranged with multiple, electric field electrode 2 is detachable peace
Dress.Each electric field electrode 2 is arranged along the tape transport direction of cathode of lithium battery coating zone.
Unwanted electric field electrode 2 can at any time be dismantled according to the configuration requirement to electric field, realize setting the optimization of electric field
Meter.
As shown in Fig. 2 AC power input 6 is the input of 380V or 220V alternating currents.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (7)
- It is 1. a kind of to improve the device that cathode of lithium battery coating process binding agent floats, it is characterised in that：Including power-supply system, electric field Intensity adjustment device (9), electric-field intensity harvester (8), baking oven (1) and electric field electrode (2)；The power-supply system connects the input of the electric-field intensity adjusting means (9), the electric-field intensity adjusting means (9) Output end connects the electric field electrode (2), and the intensity sensor of the electric-field intensity harvester (8) is in the electric field electrode (2) vacantly arrange and negative pole coating (4) between, the electric field electrode (2) is arranged on the upper and lower surface in the baking oven (1).
- 2. a kind of device for improving cathode of lithium battery coating process binding agent floating according to claim 1, its feature exists In：The power-supply system includes that AC power is input into (6) and exchange turns DC Module (7), AC power output (6) connection It is described to exchange the input for turning DC Module (7).
- 3. a kind of device for improving cathode of lithium battery coating process binding agent floating according to claim 1, its feature exists In：The electric-field intensity adjusting means (9) includes field current adjusting apparatus and electrode height adjuster (3), the electric field electricity The output end of flow adjusting device is connected with the input of the electric field electrode (2), the electrode height adjuster (3) and the electricity Field plate (2) is connected.
- 4. a kind of device for improving cathode of lithium battery coating process binding agent floating according to claim 3, its feature exists In：The electric-field intensity adjusting means (9) is provided with the digital wash or pointer display table for showing electric-field intensity.
- 5. a kind of device for improving cathode of lithium battery coating process binding agent floating according to claim 4, its feature exists In：The electric field electrode (2) is arranged with multiple in the interior upper and lower surface of the baking oven (1), and the electric field electrode (2) is detachable Install.
- 6. a kind of device for improving cathode of lithium battery coating process binding agent floating according to claim 1, its feature exists In：Each electric field electrode (2) is arranged along the tape transport direction of cathode of lithium battery coating zone.
- 7. a kind of device for improving cathode of lithium battery coating process binding agent floating according to claim 2, its feature exists In：AC power input (6) is the input of 380V or 220V alternating currents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621191321.5U CN206163607U (en) | 2016-11-02 | 2016-11-02 | Improve device of lithium cell negative pole coating process binder come -up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621191321.5U CN206163607U (en) | 2016-11-02 | 2016-11-02 | Improve device of lithium cell negative pole coating process binder come -up |
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| CN206163607U true CN206163607U (en) | 2017-05-10 |
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| CN201621191321.5U Active CN206163607U (en) | 2016-11-02 | 2016-11-02 | Improve device of lithium cell negative pole coating process binder come -up |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244396A (en) * | 2020-01-21 | 2020-06-05 | 重庆金康新能源汽车有限公司 | Application of reduced graphene oxide in high-capacity lithium ion battery |
-
2016
- 2016-11-02 CN CN201621191321.5U patent/CN206163607U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244396A (en) * | 2020-01-21 | 2020-06-05 | 重庆金康新能源汽车有限公司 | Application of reduced graphene oxide in high-capacity lithium ion battery |
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