CN111451093B - Dry-method sheet pulling equipment for positive plate of secondary battery - Google Patents
Dry-method sheet pulling equipment for positive plate of secondary battery Download PDFInfo
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- CN111451093B CN111451093B CN202010208698.1A CN202010208698A CN111451093B CN 111451093 B CN111451093 B CN 111451093B CN 202010208698 A CN202010208698 A CN 202010208698A CN 111451093 B CN111451093 B CN 111451093B
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- scraper
- scrapers
- dry
- secondary battery
- module
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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
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
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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
- H01M4/0409—Methods of deposition of the material by a doctor blade method, slip-casting or roller coating
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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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
A dry tab apparatus for a positive electrode sheet of a secondary battery, comprising: the scraper module comprises a first scraper module and a second scraper module which are arranged oppositely, wherein the second scraper module comprises a plurality of second scrapers which are arranged closely; a fine tuning device connected with the plurality of second blades, the fine tuning device configured to independently adjust the advancement and retraction of each of the plurality of second blades relative to the first blade module. When carrying out the dry-process pulling-on piece to the pole piece, can adjust the relative distance of every second scraper on the different width positions that correspond to the pole piece for first scraper module through micromatic setting in a flexible way to when powder volume is inhomogeneous in some positions of the pole piece of treating to scrape, or when the scraper on some positions has appeared wearing and tearing, can both make the powder of going up of pole piece reach evenly through this kind of regulation, finally make the thickness of pole piece even.
Description
Technical Field
The invention relates to a dry-method sheet pulling device for a positive plate of a secondary battery.
Background
In the dry-method sheet pulling process of the secondary battery positive plate, the thickness of the plate and the uniformity of the powder feeding amount are controlled by a scraper of a powder discharging box. As shown in fig. 1, the existing positive plate dry tab device has the following defects: firstly, the scrapers 1 'and 2' are in a whole strip shape, and the middle of the scrapers is easy to wear; secondly, the middle of a brush in the powder brushing box is easy to wear; thirdly, the rolling position of the double-roller machine is easy to wear after long-term rolling. The three kinds of abrasion cause uneven powdering on the pole pieces 3 with different widths and uneven thickness of the pole pieces, thereby influencing the subsequent production and performance of the battery.
Disclosure of Invention
The invention aims to overcome at least one of the technical defects and provides a dry tab device for a positive plate of a secondary battery.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dry tab apparatus for a positive electrode sheet of a secondary battery, comprising:
the scraper module comprises a first scraper module and a second scraper module which are arranged oppositely, wherein the second scraper module comprises a plurality of second scrapers which are arranged closely;
a fine tuning device connected with the plurality of second blades, the fine tuning device configured to independently adjust the advancement and retraction of each of the plurality of second blades relative to the first blade module.
Further:
the first scraper module is a whole strip-shaped first scraper.
The plurality of second scrapers are a plurality of block-shaped scrapers.
The length of the block-shaped scraper is 15-25 mm.
The second scraper module further comprises a connecting strip, transverse through holes are formed in the block-shaped scrapers, the connecting strip is used for enabling the plurality of second scrapers to be closely connected through each transverse through hole of each block-shaped scraper, and the width of each transverse through hole is larger than that of each connecting strip.
The transverse through holes are rectangular holes, and the cross section of the connecting strip is rectangular or square.
The fine adjustment device is a spiral fine adjustment mechanism.
The fine adjustment device comprises a plurality of spiral fine adjusters which are connected with the plurality of second scrapers in a one-to-one correspondence mode.
The fine adjustment device further comprises a positioning strip, and the plurality of spiral fine adjusters are fixed on the positioning strip.
The fine adjustment device further comprises a plurality of springs which are arranged in one-to-one correspondence with the plurality of second scrapers, each second scraper is tightly connected with the positioning strip through the corresponding spring, and the springs apply elastic pressure to the second scrapers.
The invention has the following beneficial effects:
the invention provides a dry-method sheet pulling device for a positive plate of a secondary battery, wherein at least a second scraper module comprises a plurality of second scrapers which are arranged closely, a fine adjustment device connected with the second scrapers is configured to be capable of independently adjusting the advance and retreat of each of the second scrapers relative to a first scraper module, when the dry-method sheet pulling is carried out on the positive plate, the relative distance between each second scraper corresponding to different width positions of the positive plate and the first scraper module can be flexibly adjusted through the fine adjustment device, so that when the powdering amount of certain parts of the positive plate to be scraped is uneven or when the scrapers on certain positions are worn, the powdering of the positive plate can be uniformly achieved through the adjustment, and finally the thickness of the positive plate is uniform.
Drawings
Fig. 1 is a schematic structural diagram of a conventional positive plate dry tab device.
Fig. 2 is a schematic perspective view of a dry tab apparatus for a positive electrode plate of a secondary battery according to an embodiment of the invention.
Fig. 3 is a schematic front view of a dry tab apparatus for a positive electrode sheet of a secondary battery according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of a dry tab apparatus for a positive electrode sheet of a secondary battery according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In addition, the connection may be for either a fixed or coupled or communicating function.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be in any way limiting of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Fig. 2 is a schematic perspective view of a dry tab apparatus for a positive electrode plate of a secondary battery according to an embodiment of the invention. Fig. 3 is a schematic front view of a dry tab apparatus for a positive electrode sheet of a secondary battery according to an embodiment of the present invention. Fig. 4 is a schematic cross-sectional view of a dry tab apparatus for a positive electrode sheet of a secondary battery according to an embodiment of the present invention. Referring to fig. 2 to 4, an embodiment of the invention provides a dry tab device for a positive electrode plate of a secondary battery, which includes a first scraper module, a second scraper module and a fine adjustment device, wherein the first scraper module and the second scraper module are arranged oppositely, the first scraper module includes a first scraper 1, and the second scraper module includes a plurality of second scrapers 2 arranged closely; the fine adjustment means is connected to the plurality of second blades 2, and is configured to be able to independently adjust the advance and retreat of each of the plurality of second blades 2 with respect to the first blade 1. When carrying out the dry-process pulling-on piece to pole piece 3, can adjust the relative distance for first scraper 1 of every second scraper 2 on the different width positions that correspond to pole piece 3 through micromatic setting in a flexible way to when the powder volume is inhomogeneous in some positions of pole piece 3 that waits to scrape, or when the scraper in some positions has appeared wearing and tearing, can both make the powder of going up of pole piece 3 reach evenly through this kind of regulation, finally make the thickness of pole piece 3 even.
In some embodiments, the first doctor module is a full strip of first doctor 1, but the invention is not limited to this form. In other embodiments, the first doctor module may also be configured the same as the second doctor module.
In a preferred embodiment, the plurality of second blades 2 is a plurality of block blades.
In a more preferred embodiment, the length of the block scraper is 15-25 mm.
In a more preferred embodiment, the second scraper module further comprises a connecting bar 7, the block-shaped scrapers are provided with transverse through holes 6, the connecting bar 7 tightly connects the plurality of second scrapers 2 through the transverse through hole 6 of each block-shaped scraper, wherein the width of the transverse through hole 6 is greater than the width of the connecting bar 7.
In a more preferred embodiment, the transverse through-hole 6 is a rectangular hole, and the cross-section of the connecting strip 7 is rectangular or square.
In a preferred embodiment, the fine adjustment means is a screw fine adjustment mechanism.
In a more preferred embodiment, the trimming means comprise a plurality of helical trimmers 4 connected to the plurality of second blades 2 in a one-to-one correspondence.
In a more preferred embodiment, the fine adjustment means further comprises a positioning bar 8, and the plurality of screw fine adjusters are fixed to the positioning bar 8.
In a more preferable embodiment, the fine adjustment device further includes a plurality of springs 9 disposed in one-to-one correspondence with the plurality of second scrapers 2, each second scraper 2 is tightly connected to the positioning strip through the corresponding spring 9, and the spring 9 applies elastic pressure to the second scraper 2, so as to improve the effect of the second scraper 2 on the pole piece.
In a specific embodiment, as shown in fig. 2, 3 and 4, the adjustable scraper is composed of a first scraper 1, a plurality of block-shaped second scrapers 2 and a spiral trimmer 4 connected with the second scrapers. The first scraper 1 is in a whole strip shape, the second scrapers 2 are in a block shape, square holes 6 are formed in the cross sections of the second scrapers, all the second scrapers 2 are tightly connected through connecting strips 7, the length of each second scraper 2 is 15-25mm, the second scrapers are separately and fixedly connected with corresponding spiral fine-adjusters 4, and each spiral fine-adjuster 4 is fixed on a positioning strip 8. When the screw fine actuator 4 is rotated, the second blade 2 can advance and retreat. For optimal effect, the second doctor blade 2 is tightly connected to the positioning strip 8 by means of a spring 9. After the pole piece 3 is brushed with powder, the pole piece is rolled by a roll crusher, if the thickness of a certain point of the pole piece to be scraped is too thick or too thin, the distance of the second scraper 2 relative to the first scraper 1 can be adjusted by the forward and backward movement of the corresponding spiral fine-tuner 4, so that the powder on the pole piece is uniform, and the uniform thickness of the pole piece is achieved.
The background of the present invention may contain background information related to the problem or environment of the present invention and does not necessarily describe the prior art. Accordingly, the inclusion in the background section is not an admission of prior art by the applicant.
The foregoing is a more detailed description of the invention in connection with specific/preferred embodiments and is not intended to limit the practice of the invention to those descriptions. It will be apparent to those skilled in the art that various substitutions and modifications can be made to the described embodiments without departing from the spirit of the invention, and these substitutions and modifications should be considered to fall within the scope of the invention. In the description herein, references to the description of the term "one embodiment," "some embodiments," "preferred embodiments," "an example," "a specific example," or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the claims.
Claims (6)
1. The utility model provides a secondary cell positive plate dry process pulling-on piece equipment for carry out the dry process pulling-on piece to positive plate, its characterized in that includes:
the scraper module comprises a first scraper module and a second scraper module which are arranged oppositely, wherein the second scraper module comprises a plurality of second scrapers which are arranged closely;
a fine adjustment device connected with the plurality of second blades, the fine adjustment device configured to independently adjust the advance and retreat of each of the plurality of second blades relative to the first blade module; the fine tuning device is a spiral fine tuning mechanism and comprises a positioning strip, a plurality of spiral fine tuning devices and a plurality of springs, wherein the spiral fine tuning devices are connected with the second scrapers in a one-to-one correspondence manner, the springs are arranged on the second scrapers in a one-to-one correspondence manner, the spiral fine tuning devices are fixed on the positioning strip, and each second scraper is tightly connected with the positioning strip through the corresponding spring, so that the spring applies elastic pressure to the second scrapers.
2. The dry tab apparatus for the positive electrode plate of the secondary battery according to claim 1, wherein the first scraper module is a first scraper in the form of a whole strip.
3. The dry tab apparatus for the positive electrode plate of the secondary battery according to claim 1 or 2, wherein the plurality of second scrapers are a plurality of block-shaped scrapers.
4. The dry tab apparatus for the positive plate of the secondary battery according to claim 3, wherein the length of the block-shaped scraper is 15-25 mm.
5. The dry tab apparatus for the positive electrode plate of the secondary battery according to claim 3, wherein the second scraper module further comprises a connecting strip, wherein the block-shaped scrapers are provided with transverse through holes, the connecting strip tightly connects the plurality of second scrapers through the transverse through holes of each block-shaped scraper, and the width of the transverse through holes is greater than that of the connecting strip.
6. The dry tab apparatus for the positive electrode plate of the secondary battery according to claim 5, wherein the transverse through hole is a rectangular hole, and the cross section of the connecting strip is rectangular or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010208698.1A CN111451093B (en) | 2020-03-23 | 2020-03-23 | Dry-method sheet pulling equipment for positive plate of secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010208698.1A CN111451093B (en) | 2020-03-23 | 2020-03-23 | Dry-method sheet pulling equipment for positive plate of secondary battery |
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| Publication Number | Publication Date |
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| CN111451093A CN111451093A (en) | 2020-07-28 |
| CN111451093B true CN111451093B (en) | 2021-02-26 |
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| CN202010208698.1A Active CN111451093B (en) | 2020-03-23 | 2020-03-23 | Dry-method sheet pulling equipment for positive plate of secondary battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114744145B (en) * | 2022-04-20 | 2024-01-23 | 山东合泰新能源有限公司 | Electrode dry preparation system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6064857B2 (en) * | 2013-10-01 | 2017-01-25 | 株式会社豊田自動織機 | Coating apparatus and coating method |
| CN107887567B (en) * | 2016-09-29 | 2019-12-20 | 深圳市比亚迪锂电池有限公司 | Rolling system and compression roller cleaning device for manufacturing high-specific-energy power battery |
| CN207126754U (en) * | 2017-08-24 | 2018-03-23 | 河南省恒明风云电源有限公司 | A kind of electrode bilateral slurry device |
| CN207909971U (en) * | 2018-02-27 | 2018-09-25 | 深圳市豪鹏科技有限公司 | A kind of secondary cell scrapes plain edge negative plate and makes mold |
| CN108461704A (en) * | 2018-02-27 | 2018-08-28 | 深圳市豪鹏科技有限公司 | A kind of secondary cell scrapes plain edge negative plate and makes mold |
| CN209109507U (en) * | 2018-10-09 | 2019-07-16 | 常州市伟邦光电科技有限公司 | Coating layer thickness micro-adjusting mechanism |
| CN109817764B (en) * | 2019-03-11 | 2024-02-23 | 无锡先导智能装备股份有限公司 | Film placing device |
| CN110328121A (en) * | 2019-06-11 | 2019-10-15 | 惠州锂威新能源科技有限公司 | A kind of pole coating removal system and its gasket and application method |
| CN110665971B (en) * | 2019-10-09 | 2021-04-20 | 钱车华 | Rolling method for lithium ion battery pole piece |
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