CN101786067A - Porous feed type extrusion head - Google Patents
Porous feed type extrusion head Download PDFInfo
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- CN101786067A CN101786067A CN201010105108A CN201010105108A CN101786067A CN 101786067 A CN101786067 A CN 101786067A CN 201010105108 A CN201010105108 A CN 201010105108A CN 201010105108 A CN201010105108 A CN 201010105108A CN 101786067 A CN101786067 A CN 101786067A
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- gap
- coating
- extrusion head
- extrusion
- feed
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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 invention relates to a porous feed type extrusion head, which is a part of an extrusion coater for manufacturing lithium ion batteries. A haplopore feed type coating head easily causes that sizing agent pressure is unbalanced, and feed flow rate is not easy to control; and gap sensitivity of a gap coating is lowered, and the quality of a gap head and gap tail is influenced due to that the sizing agent unit feed flow rate is unable to keep pace with the gap reaction speed, therefore a small distance gap is difficult to realize. The key to solve the above problems lies in adopting multiple feed ports, thus solving the problems of large control difficulty of feeding stability of the coating, low precision of the gap coating and incapability of realizing small gap coating, and improving the coating quality of the extrusion type coating machine and the wide adaptability to the manufacturing process of the lithium ion batteries.
Description
Technical field
The present invention relates to a kind of lithium battery manufacturing equipment extrusion coating machine, especially porous feed type extrusion head.
Background technology
Coating is a requisite operation in the lithium ion battery production process, also is the critical process that directly influences every performances such as battery security, capacity, uniformity.Coating is exactly the pasty state viscous paste of making, and uniformly, continuously or being coated on the matrix (aluminium foil or Copper Foil) of being interrupted, guarantees the consistency of thickness of each coating position and coating thickness is controlled in the margin of tolerance of technological requirement.The present domestic two kinds of coating methods that have: transfer type and squash type.Transfer type is a kind of mature technique, but its complex structure, the equipment debugging trouble; Because the slurry of transfer type coating machine is in naked state, therefore slurry is had certain influence to performance, the time slightly length will produce caking, can't apply.
By experiment, the extrusion coater technology is increasingly mature, and its frame for movement is simple, and device miniaturization is saved the space, and debugging is convenient; Its coating extrusion head partly is closed, and slurry all is hedged off from the outer world between applying, and therefore can not make slurry rotten because of the reason of air.
The coating precision of extrusion coater is more high than transfer type coating machine.Present experimental result shows that the transfer type coating thickness limit is 50 μ m, and the squash type coating can reach 20 μ m, and is stronger to the adaptability of lithium battery technology.
All the time, the dispense tip that extrusion coater adopted all is the single hole feed type.The single hole charging is unfavorable for the balance of slurry pressure in the extrusion head cavity; In addition,, cause the slurry feed flow velocity to increase, increased the control difficulty of slurry feed stability because single hole insertion unit area flow is limited.When the extrusion coated of gap, because slurry unit's feed rate does not catch up with the gap reaction speed, cause the gap sensitivity of gap coating to reduce, influence the quality of gap head, tail, cause the small distance gap to be difficult to realize.
Summary of the invention
Development purpose of the present invention is to capture the prior art bottleneck, and a kind of the more hole feed type extrusion head is provided, and improves the coating quality of extrusion coating machine and the control difficulty of reduction extrusion coated.
A kind of porous feed type extrusion head of the present invention comprises extrusion head lower lip, extrusion head upper lip, gap pad, seal cover, fastening bolt, charging bend pipe, it is characterized in that: described porous feed type extrusion head adopts a plurality of (illustrating three) charging aperture.
Beneficial effect of the present invention is: adopt porous feed type extrusion head, solved that extrusion coating machine coating feed stability control difficulty is big, not high, the problem that can not realize the coating of little gap of precision during the coating of gap, improve the coating quality of extrusion coating machine and to the lithium ion battery manufacturing process to extensive adaptability.
Description of drawings
Fig. 1 is the extrusion head feeding structure schematic diagram of existing extrusion coating machine;
Fig. 2 is the perspective view of porous feed type extrusion head of the present invention;
Fig. 3 is a porous feed type extrusion head schematic internal view of the present invention;
Among the figure: 01: the extrusion head lower lip; 02: the extrusion head upper lip; 03: seal cover; 04: fastening bolt; 05: the charging bend pipe; 06: charging aperture; 07 pressure chamber.
The specific embodiment
Embodiment:
Shown in Fig. 2,3: a kind of porous feed type extrusion head of the present invention, comprise extrusion head lower lip 01, extrusion head upper lip 02, seal cover 03, fastening bolt 04, charging bend pipe 05, it is characterized in that: three charging apertures 06 are arranged at pressure chamber 07 bottom of described extrusion head lower lip 01, coating sizing-agent is injected the pressure chamber 07 of extrusion head respectively uniformly through three charging apertures 06 by charging bend pipe 05, make the slurry pressure equilibrium on the pressure chamber sectional area thus, also increased the unit are feed rate simultaneously.
The present invention adopts porous feed type extrusion head, solved that extrusion coating machine coating feed stability control difficulty is big, not high, the problem that can not realize the coating of little gap of precision during the coating of gap, improve the coating quality of extrusion coating machine and to the lithium ion battery manufacturing process to extensive adaptability.
Claims (1)
1. a kind of porous feed type extrusion head of the present invention comprises extrusion head lower lip, extrusion head upper lip, gap pad, seal cover, fastening bolt, charging bend pipe, and it is characterized in that: described porous feed type extrusion head adopts a plurality of charging apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010105108A CN101786067A (en) | 2010-01-23 | 2010-01-23 | Porous feed type extrusion head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010105108A CN101786067A (en) | 2010-01-23 | 2010-01-23 | Porous feed type extrusion head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101786067A true CN101786067A (en) | 2010-07-28 |
Family
ID=42529525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010105108A Pending CN101786067A (en) | 2010-01-23 | 2010-01-23 | Porous feed type extrusion head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101786067A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111389664A (en) * | 2020-05-08 | 2020-07-10 | 业成科技（成都）有限公司 | Coating head assembly and coating machine |
| CN115106254A (en) * | 2022-07-01 | 2022-09-27 | 福建恒安集团有限公司 | Rifle is scraped in adjustable clearance |
| WO2023280105A1 (en) * | 2021-07-05 | 2023-01-12 | Damitz Thomas Gerhard Wilhelm | Extrusion coating mold for coating lithium ion battery pole pieces |
-
2010
- 2010-01-23 CN CN201010105108A patent/CN101786067A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111389664A (en) * | 2020-05-08 | 2020-07-10 | 业成科技（成都）有限公司 | Coating head assembly and coating machine |
| WO2023280105A1 (en) * | 2021-07-05 | 2023-01-12 | Damitz Thomas Gerhard Wilhelm | Extrusion coating mold for coating lithium ion battery pole pieces |
| CN115106254A (en) * | 2022-07-01 | 2022-09-27 | 福建恒安集团有限公司 | Rifle is scraped in adjustable clearance |
| CN115106254B (en) * | 2022-07-01 | 2023-08-15 | 福建恒安集团有限公司 | Adjustable clearance scraping gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100728 |