CN108273804A - A kind of dust removal method of lithium battery pole slice and the dust-extraction unit for implementing this method - Google Patents
A kind of dust removal method of lithium battery pole slice and the dust-extraction unit for implementing this method Download PDFInfo
- Publication number
- CN108273804A CN108273804A CN201711440804.3A CN201711440804A CN108273804A CN 108273804 A CN108273804 A CN 108273804A CN 201711440804 A CN201711440804 A CN 201711440804A CN 108273804 A CN108273804 A CN 108273804A
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- China
- Prior art keywords
- dust
- pole piece
- air
- lithium battery
- flow
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
- B08B5/043—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
- B08B5/023—Cleaning travelling work
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
Abstract
The invention discloses the dust-extraction units of a kind of dust removal method of lithium battery pole slice and implementation this method, pass through electrically charged high-speed flow first, while dust ion institute's static electrification on eliminating pole piece, dust is blown afloat dust is then siphoned away collection by negative pressure adsorption equipment by gas shock power；The method of electrostatic is on elimination pole piece：The air-flow with negative ions is formed first with compressed air, air-flow with negative ions goes to neutralize the charge of the dust institute band on pole piece, to make dust lose the adsorption capacity on pole piece, achieve the purpose that eliminate pole piece electrostatic, again under the action of high-speed flow, it allows dust to be detached from pole piece, then dust suction is recycled by the aspiration of negative pressure mode；The dust-extraction unit includes ion air knife corresponding with pole piece and the aspiration of negative pressure device, after using the present invention, dust clast has obtained effective removal, by checking more than 10000 meters of long pole piece, the case where not reexamined dust clast, the practical function highly significant of the invention.
Description
Technical field
The present invention relates to the dust-extraction units of a kind of dust removal method of lithium battery pole slice and implementation this method.
Background technology
With the development of new-energy automobile, the requirement to lithium-ion-power cell is higher and higher, lithium battery positive and negative anodes pole piece
On dust, short circuit can be led to, to cause self-discharge of battery or safety accident.All due to current most lithium battery pole slices
It is to cut in various ways, the dust such as clast is unavoidably will produce during cutting, if not before assembly
It eliminates, can have a great impact to battery product quality.
Current driving force battery industry generally eliminates dust by the way of artificial brushing piece, also has and eliminates powder using automatic device
Dirt, but eliminate dust effect and be still short of.The mode of elimination dust has following several at present：1. use hairbrush+negative
The mode of pressure, greatest problem existing for which be, actually hairbrush be difficult to brush dust because dust particles are very
It is small, and be printed with brush and hinder the risk of pole piece, the hardness of hairbrush, consistency, parameters are difficult to control with pole piece at a distance from etc.；And it bears
Pressure is difficult to offset adhesive force of the dust on pole piece to eliminate dust, so less effective；2. positive pressure purging+the aspiration of negative pressure,
This mode belongs to contactless dedusting, the several ways using effect announced at present is not good enough yet there is no the risk that brush hinders pole piece
The reason of to be that structure design is unreasonable cause blowing and dust suction that cannot form effective air-flow, and due to static reason, dust is in pole
On piece can not be blown down, even if blowing down, be easily formed second adsorption.
Invention content
The purpose of the present invention is to provide a kind of dust removal method of lithium battery pole slice and implement this method dust-extraction unit,
Effectively eliminate the dust of the pole piece.
To achieve the goals above, present invention employs following technical schemes：
A kind of dust removal method of lithium battery pole slice while eliminating the electrostatic on the pole piece first, by air-flow, allows dust
It is detached from pole piece, the dust is then siphoned away collection.
The method of electrostatic eliminated on the pole piece is：The gas with negative ions is formed first with compressed air
Stream should remove to neutralize the charge of the dust institute band on the pole piece, to make dust lose in the pole piece with the air-flow of negative ions
On adsorption capacity, while having achieved the purpose that eliminate the pole piece electrostatic, the effect of air-flow makes dust be detached from pole piece, then passes through
The aspiration of negative pressure mode recycles dust suction.
It is supersonic airstream to form the air-flow with negative ions using compressed air.
It includes Xelminator and the aspiration of negative pressure device for a kind of dust-extraction unit of lithium battery pole slice, the Xelminator and should
The aspiration of negative pressure device corresponds to the pole piece respectively, which is located at the rear of the electrostatic precipitator.
The Xelminator is ion air knife, and the air knife gap of the ion air knife is corresponding with the pole piece.
Air knife gap≤0.2mm of the ion air knife
Dust suction lid is connected at the dust suction nozzle of the aspiration of negative pressure device, which covers connects equipped with the multiple and dust suction nozzle
It is logical to form the adsorption hole of effective air-flow.
Adsorption gas flow >=2m/s of the adsorption hole.
Beneficial effects of the present invention：The present invention is by first eliminating the electrostatic on lithium battery pole slice surface, in order to make powder
Dirt loses the adsorption capacity in the pole piece, achievees the purpose that eliminate electrostatic, and the compressed gas of high speed can also will be on the pole piece
Dust blow away, while dust suction is recycled using the aspiration of negative pressure device, avoids being dispersed into space and form secondary pollution.Make
Before the present invention, we have attempted the dust of each technical solution removal pole piece of the prior art, especially hairbrush+negative pressure
The mode of absorption, we have attempted various parameters, could not effectively remove the dust clast on battery pole piece surface.From using this hair
After bright, dust clast has obtained effective removal, by checking more than 10000 meters of long pole piece, has not reexamined dust
The case where clast, the practical function highly significant of the invention.After using the present invention, the dust clast on the electrode slice obtains
It effectively eliminates, the case where by checking more than 10000 meters of long pole piece, not reexamined dust clast, the invention
Practical function highly significant.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the dust-extraction unit of lithium battery pole slice of invention.
1：The aspiration of negative pressure device, 11：Dust suction nozzle, 12：Adsorption hole, 2：Ion air knife, 3, pole piece, 4 carrying rollers.
Specific implementation mode
A kind of dust removal method of lithium battery pole slice of the present invention passes through height while eliminating the electrostatic on the pole piece first
Fast air-flow allows dust to be detached from pole piece, the dust is then siphoned away collection.
The method of electrostatic eliminated on the pole piece is：The gas with negative ions is formed first with compressed air
Stream should remove to neutralize the charge of the dust institute band on the pole piece, to make dust lose in the pole piece with the air-flow of negative ions
On adsorption capacity, while having achieved the purpose that eliminate the pole piece electrostatic, the effect of air-flow makes dust be detached from pole piece, then passes through
The aspiration of negative pressure mode recycles dust suction.
It is supersonic airstream to form the air-flow with negative ions using compressed air.
As shown in Figure 1, implementing a kind of dust-extraction unit of the dust removal method of above-mentioned lithium battery pole slice, it includes Xelminator
With the aspiration of negative pressure device 1, it is preferable that the Xelminator be ionic air knife or ion air knife 2, the air knife gap of the ion air knife 2 and
The dust suction nozzle of the aspiration of negative pressure device 1 corresponds to the pole piece 3 respectively, which is located at the top of carrying roller 4 and moves to the right, should
The aspiration of negative pressure device 1 is located at the rear of the ion air knife 2, first destatics rear dust suction and collects.
In order to form supersonic airstream, which has very strong purging ability, can more effectively purge
All dust on the pole piece 3, air knife gap≤0.2mm of the ion air knife.
It cannot be formed with effect adsorption gas flow in order to avoid big opening caused by most of designs, the aspiration of negative pressure device 1
Dust suction nozzle 11 at connect dust suction lid, which covers equipped with multiple adsorption holes 12 being connected to the dust suction nozzle, the absorption
Adsorption gas flow >=the 2m/s in hole 12.
Ion air knife 2 includes ion bar and air knife, is exactly to be sprayed by air knife gap high speed using compressed air, drives week
It encloses surrounding air and generates high flow capacity and quickly travel forward air-flow, which is ionized by static elimination ion bar, gas after ionization
Stream is for neutralizing electrostatic.
A kind of dust-extraction unit of lithium battery pole slice of the present invention is exactly to pass through air knife using the compressed air of 0.3-0.7MPa
Gap ejected with ultrasonic speed, to drive surrounding compressed air, form supersonic airstream, can be formed
Air-flow, the air-flow have very strong purging ability, can effectively purge all dust；It is arranged at the originator of air-flow
Ion bar, ion bar can distribute negative ions in the gas flow, which can neutralize the charge for eliminating dust institute band, to
The adsorption capacity on pole piece 3 is lost, which is purged on pole piece, dust is brought into air-flow together, by negative pressure
Several adsorption holes 12 of dust catcher 1 suck, and are adsorbed by dust suction nozzle 11, using air filter, purifying and stive.Thus
Dust on pole piece can be eliminated by way of destaticing supersonic speed ionic air knife+negative-pressure adsorption, and the dust of reverse side
Then after the same method, it on the basis of pole piece, is arranged symmetrically.The aspiration of negative pressure device uses multiple adsorption holes, thus is avoided that
The big opening of dust suction nozzle and effect adsorption gas flow cannot be formed with, the aspiration of negative pressure device be responsible for the dust suction that will purge return
It receives, avoids being dispersed into space and form secondary pollution, pollute environment.
Claims (8)
1. a kind of dust removal method of lithium battery pole slice, it is characterised in that：While eliminating the electrostatic on the pole piece first, pass through gas
Stream allows dust to be detached from pole piece, the dust is then siphoned away collection.
2. a kind of dust removal method of lithium battery pole slice according to claim 1, it is characterised in that：On described elimination pole piece
The method of electrostatic be：The air-flow with negative ions is formed first with compressed air, should be gone with the air-flow of negative ions
The charge for neutralizing the dust institute band on the pole piece has reached to make dust lose the adsorption capacity on the pole piece and has eliminated the pole
While the purpose of piece electrostatic, the effect of air-flow makes dust be detached from pole piece, and then dust suction is returned by the aspiration of negative pressure mode
It receives.
3. a kind of dust removal method of lithium battery pole slice according to claim 2, it is characterised in that：It is formed using compressed air
Air-flow with negative ions is supersonic airstream.
4. a kind of dust-extraction unit of dust removal method that implementing a kind of lithium battery pole slice described in claim 1, it is characterised in that：It
Including Xelminator and the aspiration of negative pressure device, the Xelminator and the aspiration of negative pressure device correspond to the pole piece respectively, which inhales
Dirt device is located at the rear of the electrostatic precipitator.
5. a kind of dust-extraction unit of lithium battery pole slice according to claim 4, it is characterised in that：The Xelminator is
The air knife gap of ion air knife, the ion air knife is corresponding with the pole piece.
6. a kind of dust-extraction unit of lithium battery pole slice according to claim 5, it is characterised in that：The gas of the ion air knife
Knife gap≤0.2mm.
7. a kind of dust-extraction unit of lithium battery pole slice according to claim 4 or 5 or described in 6, it is characterised in that：The negative pressure is inhaled
At the dust suction nozzle of dirt device connect dust suction lid, the dust suction cover equipped with it is multiple be connected to the dust suction nozzle to form effective air-flow
Adsorption hole.
8. a kind of dust-extraction unit of lithium battery pole slice according to claim 7, it is characterised in that：The absorption of the adsorption hole
Air-flow >=2m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711440804.3A CN108273804A (en) | 2017-12-27 | 2017-12-27 | A kind of dust removal method of lithium battery pole slice and the dust-extraction unit for implementing this method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711440804.3A CN108273804A (en) | 2017-12-27 | 2017-12-27 | A kind of dust removal method of lithium battery pole slice and the dust-extraction unit for implementing this method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108273804A true CN108273804A (en) | 2018-07-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711440804.3A Withdrawn CN108273804A (en) | 2017-12-27 | 2017-12-27 | A kind of dust removal method of lithium battery pole slice and the dust-extraction unit for implementing this method |
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| CN (1) | CN108273804A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277369A (en) * | 2018-11-19 | 2019-01-29 | 大连范特西西科技有限公司 | A kind of high-efficiency battery surface dust cleaning apparatus and method |
| CN109605470A (en) * | 2018-12-20 | 2019-04-12 | 中融飞腾（北京）科技有限公司 | Multiple spot depression dust-removing system for new energy lithium battery positive and negative anodes substrate forming |
| CN109719084A (en) * | 2018-12-26 | 2019-05-07 | 歌尔股份有限公司 | Air blowing dedusting tooling and MEMS chip dust removal method |
| CN109956496A (en) * | 2019-04-03 | 2019-07-02 | 西南科技大学 | A kind of method and device thereof of supersonic airstream dissociation and traces of moisture control |
| CN110721961A (en) * | 2019-10-14 | 2020-01-24 | 中航锂电科技有限公司 | Dust removing device |
| CN110813924A (en) * | 2019-12-16 | 2020-02-21 | 中国工程物理研究院激光聚变研究中心 | Treatment system for particle contaminants on the surface of optical elements |
| CN111312986A (en) * | 2020-03-05 | 2020-06-19 | 湖北亿纬动力有限公司 | Method and device for removing dust on surface of pole piece in lithium ion battery sheet making stage |
| CN111530851A (en) * | 2020-05-15 | 2020-08-14 | 聚束科技（北京）有限公司 | Particle beam microscope sample decontamination method and pre-pumping chamber provided with decontamination device |
| WO2023000754A1 (en) * | 2021-07-22 | 2023-01-26 | 蜂巢能源科技股份有限公司 | Apparatus for removing dust from surface of electrode plate |
| WO2023159617A1 (en) * | 2022-02-28 | 2023-08-31 | 宁德时代新能源科技股份有限公司 | Dust removal apparatus, battery manufacturing device and dust removal method |
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| CN205183260U (en) * | 2015-11-02 | 2016-04-27 | 宁德新能源科技有限公司 | Pole piece ultrasonic wave cleaning device |
| CN206661832U (en) * | 2017-04-05 | 2017-11-24 | 维动新能源股份有限公司 | A kind of dust arrester for being used to produce High-performance green battery |
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| CN201871510U (en) * | 2010-08-16 | 2011-06-22 | 东莞市科园防静电设备有限公司 | Multifunctional electrostatic dust removal machine |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277369A (en) * | 2018-11-19 | 2019-01-29 | 大连范特西西科技有限公司 | A kind of high-efficiency battery surface dust cleaning apparatus and method |
| CN109605470A (en) * | 2018-12-20 | 2019-04-12 | 中融飞腾（北京）科技有限公司 | Multiple spot depression dust-removing system for new energy lithium battery positive and negative anodes substrate forming |
| CN109719084A (en) * | 2018-12-26 | 2019-05-07 | 歌尔股份有限公司 | Air blowing dedusting tooling and MEMS chip dust removal method |
| CN109956496A (en) * | 2019-04-03 | 2019-07-02 | 西南科技大学 | A kind of method and device thereof of supersonic airstream dissociation and traces of moisture control |
| CN109956496B (en) * | 2019-04-03 | 2021-07-16 | 西南科技大学 | Supersonic airflow dissociation and trace water content control method and device |
| CN110721961A (en) * | 2019-10-14 | 2020-01-24 | 中航锂电科技有限公司 | Dust removing device |
| CN110813924A (en) * | 2019-12-16 | 2020-02-21 | 中国工程物理研究院激光聚变研究中心 | Treatment system for particle contaminants on the surface of optical elements |
| CN111312986A (en) * | 2020-03-05 | 2020-06-19 | 湖北亿纬动力有限公司 | Method and device for removing dust on surface of pole piece in lithium ion battery sheet making stage |
| CN111530851A (en) * | 2020-05-15 | 2020-08-14 | 聚束科技（北京）有限公司 | Particle beam microscope sample decontamination method and pre-pumping chamber provided with decontamination device |
| WO2023000754A1 (en) * | 2021-07-22 | 2023-01-26 | 蜂巢能源科技股份有限公司 | Apparatus for removing dust from surface of electrode plate |
| WO2023159617A1 (en) * | 2022-02-28 | 2023-08-31 | 宁德时代新能源科技股份有限公司 | Dust removal apparatus, battery manufacturing device and dust removal method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180713 |
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| WW01 | Invention patent application withdrawn after publication |