CN206935691U - A kind of novel battery coating head modular construction - Google Patents
A kind of novel battery coating head modular construction Download PDFInfo
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- CN206935691U CN206935691U CN201720844417.5U CN201720844417U CN206935691U CN 206935691 U CN206935691 U CN 206935691U CN 201720844417 U CN201720844417 U CN 201720844417U CN 206935691 U CN206935691 U CN 206935691U
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- coating head
- pulpboard
- discharging
- discharging opening
- lip
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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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Abstract
The utility model discloses a kind of novel battery coating head modular construction, equal pulpboard including coating head and between the coating head and feeding mouth in cavity, the coating head is provided with the first discharging lip and the second discharging lip, described formed between pulpboard and the coating head holds slurry cavity, the pulpboard is provided with is provided with the runner connected with the feeding mouth with first discharging opening and the second discharging opening for holding slurry cavity and connecting, the homogenate postlaminar part.The structure of the novel battery coating head modular construction is simple, and coating assignment of traffic is balanced, can solve the problems, such as caliper uniformity during lithium battery pole piece coating well by the homogenate transition of equal pulpboard, have stronger practicality.
Description
Technical field
The utility model belongs to technical field of lithium batteries, and head assembly knot is coated with more specifically to a kind of novel battery
Structure.
Background technology
Lithium ion battery as a kind of green battery, have high-energy-density, high working voltage, high safety performance and
The advantages that long life, therefore superior prospect is shown in terms of portable electric appts, electric automobile and energy storage.
Lithium battery needs uniformly to apply last layer electrode slurry in collection liquid surface in process of production, more using narrow at present
Seam coating die head is coated.Slot coated die head (English name:Slot die, hereinafter referred to as coating head) it is mainly used in afflux
Body surface face coats the important tool of each type coating, is the important component that all kinds of coating kind equipments realize coating function.It is tied
Structure is mainly made up of upstream mould and downstream mold, entrance that its function is mainly combined by upstream mould and downstream mold, distribution cavity and
Slit conduit is realized jointly, and coordinates coating apparatus to realize continuous, interval and zebra-stripe coating.
Coating process in the past uses the symmetrical coating method in both sides more, and now by the common of production capacity and equipment handling capacity
Influence, three coating processes can only be gone out using asymmetrical one, because the inlet of coating head is in the center position of coating head, but go out
Material mouth is asymmetric to be distributed in both sides, causes coating head internal flow flow unreasonable distribution, and the pole piece thickness applied out is homogeneous
Property is poor, not only have impact on the normal production of process below, also seriously reduces the quality of lithium battery.
Utility model content
The purpose of this utility model is that solve the problems, such as that prior art is present, there is provided a kind of simple in construction, coating flow point
Balancing, the novel battery coating head modular construction of the preferable coated product of homogeneity can be formed.
To achieve these goals, the technical scheme that the utility model is taken is:This novel battery coating provided
Head assembly structure, including coating head and the equal pulpboard between the coating head and feeding mouth in cavity, the coating head
The first discharging lip and the second discharging lip are provided with, described formed between pulpboard and the coating head holds slurry cavity, described
Equal pulpboard is provided with to be provided with and institute with first discharging opening and the second discharging opening for holding slurry cavity and connecting, the homogenate postlaminar part
State the runner of feeding mouth connection.
To make above-mentioned technical proposal more detailed and specific, the utility model also provides optimization technique further below
Scheme, to obtain satisfied practical function:
The pulpboard is provided with baffle plate between first discharging opening and the second discharging opening, and the baffle plate is by institute
State appearance slurry cavity and be separated into two cavitys by the size of the described first discharging lip and the second discharging lip.
First discharging opening and the second discharging opening are respectively arranged on relatively described first discharging lip and the second discharging lip
Centre position.
First discharging opening and the second discharging opening are ellipsoidal structure, first discharging opening and the second discharging opening it is big
Small scale is consistent with the size of the described first discharging lip and the second discharging lip.
The pulpboard both side ends are equipped with exhaust outlet.
The pulpboard both ends are provided with the positioning wedged block that bending is formed.
The pulpboard cross section is in the semicircular structure tangent with the inner chamber wall of the coating head.
The pulpboard uses structure made of Teflon.
The utility model compared with prior art, has advantages below:The structure of the novel battery coating head modular construction
Simply, it is balanced to be coated with assignment of traffic, can solve thickness during lithium battery pole piece coating well by the homogenate transition of equal pulpboard
Homogeneous sex chromosome mosaicism, there is stronger practicality.
Brief description of the drawings
The content of every width accompanying drawing expression in present specification and the mark in figure are briefly described below:
Fig. 1 is the utility model coating head component structure diagram;
Fig. 2 is the equal pulpboard dimensional structure diagram of the utility model;
Fig. 3 is the utility model homogenate back structural representation;
Fig. 4 is the equal pulpboard side structure schematic diagram of the utility model.
In figure mark for:1st, fixed mount, 2, feeding mouth, 3, coating head, the 31, first discharging lip, the 32, second discharging lip
Mouthful, 4, equal pulpboard, the 41, first discharging opening, the 42, second discharging opening, 43, baffle plate, 44, exhaust outlet, 45, positioning wedged block, 46, stream
Road.
Embodiment
Below against accompanying drawing, by the description to embodiment, specific embodiment of the present utility model is made further detailed
Thin explanation.
This novel battery coating head modular construction of the utility model, as shown in figure 1, the cell coating head assembly includes applying
The leftover of bolt of cloth 3 and the equal pulpboard 4 between coating head 3 and feeding mouth 2 in cavity, coating head 3, equal pulpboard 4 and feeding mouth 2 pass through
Fixed mount 1 fixes support.Coating head 3 is provided with the first discharging discharging lip 32 of lip 31 and second, equal pulpboard 4 and coating head 3
Between formed and hold slurry cavity, equal pulpboard 4 is provided with holding slurry cavity the first discharging opening 41 and the second discharging opening 42 that connect, homogenate
The rear portion of plate 4 is provided with the runner 46 connected with feeding mouth.In use, opening feeding system, slurry is by feeding mouth, by equal pulpboard 4
Following runner 46 flows to discharging opening, is then overflowed from discharging opening and fills up both sides appearance slurry cavity, and then slurry can be from the first discharging
The discharging lip 32 of lip 31 and second sprays, and forms the preferable coated product of homogeneity.
In the utility model, as shown in Figure 2, equal pulpboard 4, which is provided with, is located at the first discharging opening 41 and the second discharging opening 42
Between baffle plate 43, baffle plate 43 by hold slurry cavity by first discharging lip 31 and second discharge lip 32 size be separated into
Two cavitys.First discharging opening 41 and the second discharging opening 42 are respectively arranged on relative first discharging lip 31 and second discharging lip 32
Centre position.In the utility model, as shown in Fig. 2,3, the first discharging opening 41 and the second discharging opening 42 are ellipsoidal structure,
The size ratio of first discharging opening 41 and the size of the second discharging opening 42 and the first discharging discharging lip 32 of lip 31 and second
Example is consistent.The arrangement of such a structure can solve caused by discharging lip ratio is inconsistent that assignment of traffic is unbalance asks well
Topic, it is ensured that stable stream slurry process.
In the utility model, as shown in Figure 2,3, 4, equal pulpboard both side ends are equipped with exhaust outlet 44.The exhaust outlet 44 with
Runner 46 is connected, and can avoid that bubble can be produced in runner well, causes the situation of coating leakage metal to occur.
In the utility model, as shown in Figure 2, the equal both ends of pulpboard 4 are provided with the positioning wedged block 45 that bending is formed, and are easy to homogenate
The location and installation of plate 4, convenience quick for installation.
In the utility model, the equal cross section of pulpboard 4 is in the semicircular structure tangent with the inner chamber wall of coating head 2, such as Fig. 4
Shown in, runner 46 connects on arcwall face with feeding mouth 2.
In the utility model, because equal pulpboard 4 for a long time with corrosive slurry contact, so material is preferably using resistance to
The Teflon of corrosion, and itself it is possible to prevente effectively from destroy coating head internal chamber wall.
The utility model cell coating head assembly structure, it can make the homogeneity of lithium battery pole piece coating more preferably.Below with
One goes out exemplified by the coating head of three techniques to be further described, and discharge lip size, the first discharging lip 31:Second discharging
Lip 32=2:1, so the first discharging opening 41 and the second discharging opening 42=2:1, and each discharging opening is positioned at corresponding discharging lip
Centre position, to solve assignment of traffic unbalance well, improve it is original unified by centre position feed strip Lai stream
Unreasonable distribution problem is measured, and then improves coating thickness uniformity;Total lateral cross section semicircular in shape, can be with coating head
Inner chamber is tangent, and runner is provided below and is connected with feeding mouth 2;Baffle plate 43 is arranged at the equal upper surface 1/3rd of pulpboard 4, can be hindered
Fluid stopping body intercommunication in size cavity, it is ensured that stability of flow.By equal pulpboard 4 using in the cavity of coating head 3, it is intended to solve lithium
Caliper uniformity problem when battery pole piece is coated with.
This novel battery coating head modular construction of the utility model, equal pulpboard 4 is used cooperatively with coating head 3, by it
It is embedded in the inner chamber of coating head 3, opens feeding system, stream of slurry is entered feeding mouth 2, supported by the runner 46 below equal pulpboard 4
Up to discharging opening, then overflowed from discharging opening and fill up both sides cavity, and then sprayed from discharging lip, formed homogeneity and be preferably coated with
Product, its is simple in construction for the novel battery coating head modular construction, and coating assignment of traffic is balanced, passes through the homogenate of equal pulpboard 4
Caliper uniformity when can solve the problems, such as lithium battery pole piece coating well is crossed, there is stronger practicality.
The utility model is exemplarily described above in conjunction with accompanying drawing, but the utility model be not limited to it is above-mentioned
Mode, as long as the improvement of the various unsubstantialities carried out using methodology of the present utility model and technical scheme or directly application
In other occasions, all fall within the scope of protection of the utility model.
Claims (8)
- A kind of 1. novel battery coating head modular construction, it is characterised in that:Including coating head and installed in the coating head with entering Equal pulpboard between material mouth in cavity, the coating head are provided with the first discharging lip and the second discharging lip, the equal pulpboard Formed between the coating head and hold slurry cavity, the pulpboard be provided with it is described hold the first discharging opening for connecting of slurry cavity and Second discharging opening, the homogenate postlaminar part are provided with the runner connected with the feeding mouth.
- 2. according to the cell coating head assembly structure described in claim 1, it is characterised in that:The pulpboard, which is provided with, is located at institute State the baffle plate between the first discharging opening and the second discharging opening, the baffle plate by it is described hold starch cavity by the described first discharging lip and The size of second discharging lip is separated into two cavitys.
- 3. according to the cell coating head assembly structure described in claim 2, it is characterised in that:First discharging opening and second go out Material mouth is respectively arranged on the centre position of relatively described first discharging lip and the second discharging lip.
- 4. according to the cell coating head assembly structure described in claim 3, it is characterised in that:First discharging opening and second go out Material mouth is ellipsoidal structure, the size of first discharging opening and the second discharging opening and the described first discharging lip and second The size of discharging lip is consistent.
- 5. according to the cell coating head assembly structure described in any one of Claims 1-4, it is characterised in that:The pulpboard two Side end is equipped with exhaust outlet.
- 6. according to the cell coating head assembly structure described in claim 5, it is characterised in that:The pulpboard both ends are provided with bending The positioning wedged block of formation.
- 7. according to the cell coating head assembly structure described in claim 6, it is characterised in that:The pulpboard cross section is in and institute State the tangent semicircular structure of the inner chamber wall of coating head.
- 8. according to the cell coating head assembly structure described in claim 7, it is characterised in that:The pulpboard uses Teflon system Into structure.
Priority Applications (1)
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CN201720844417.5U CN206935691U (en) | 2017-07-13 | 2017-07-13 | A kind of novel battery coating head modular construction |
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CN201720844417.5U CN206935691U (en) | 2017-07-13 | 2017-07-13 | A kind of novel battery coating head modular construction |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113631279A (en) * | 2019-09-06 | 2021-11-09 | 株式会社Lg新能源 | Slot-die coating apparatus with vent holes |
-
2017
- 2017-07-13 CN CN201720844417.5U patent/CN206935691U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113631279A (en) * | 2019-09-06 | 2021-11-09 | 株式会社Lg新能源 | Slot-die coating apparatus with vent holes |
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