CN104475611B - Be applicable to dust collecting process and the material-receiving device of electrodes of lithium-ion batteries - Google Patents
Be applicable to dust collecting process and the material-receiving device of electrodes of lithium-ion batteries Download PDFInfo
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- CN104475611B CN104475611B CN201410748892.3A CN201410748892A CN104475611B CN 104475611 B CN104475611 B CN 104475611B CN 201410748892 A CN201410748892 A CN 201410748892A CN 104475611 B CN104475611 B CN 104475611B
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- pole piece
- dust
- collecting box
- receiving device
- pulp
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/20—Storage arrangements; Piling or unpiling
- B21D43/22—Devices for piling sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B6/00—Cleaning by electrostatic means
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2215/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Electrostatic Separation (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of dust collecting process and the material-receiving device that are applicable to electrodes of lithium-ion batteries.It comprises pulp-collecting box, and in relative the first side of described pulp-collecting box, the second side surface distributes porose portion respectively; Ion blower, is arranged on outside the first side of described pulp-collecting box, and air outlet is relative with described first side; Dust exhaust apparatus, is arranged on outside the second side of described pulp-collecting box, and dust shield entrance is relative with described second side of described pulp-collecting box.Apply this technical scheme, be conducive to zero electric rate, low pressure rate and a low capacity rate reducing lithium ion battery.
Description
Technical field
The present invention relates to lithium ion battery and manufacture field, particularly relate to a kind of dust collecting process and the material-receiving device that are applicable to electrodes of lithium-ion batteries.
Background technology
Since the lithium ion battery commercialization nineties in 20th century, lithium ion battery has become one of main power source of the products such as electric motor car, mobile communication, notebook computer with its advantage such as high-energy-density, high voltage.There is the higher defect of zero electric rate, low pressure rate and a low capacity rate in the lithium ion battery of prior art.
Summary of the invention
One of object of the embodiment of the present invention is to provide a kind of dust collecting process and the material-receiving device that are applicable to electrodes of lithium-ion batteries.Apply this technical scheme, be conducive to zero electric rate, low pressure rate and a low capacity rate reducing lithium ion battery.
It is a kind of for connecing the material-receiving device putting lithium ion battery pole piece that the embodiment of the present invention provides, and comprising:
Pulp-collecting box, in relative the first side of described pulp-collecting box, the second side surface distributes porose portion respectively;
Ion blower, is arranged on outside the first side of described pulp-collecting box, and air outlet is relative with described first side;
Dust exhaust apparatus, is arranged on outside the second side of described pulp-collecting box, and dust shield entrance is relative with described second side of described pulp-collecting box.
Alternatively, the hole portion be distributed on described first side, the second side is array-like arrangement.
Alternatively, the described hole portion on described first side, the second side is facing each other.
Alternatively, in described pulp-collecting box, be also provided with baffle plate, also distribute porose portion at described baffle surface.
Alternatively, be also enclosed with soft material layer outward at described baffle plate, described soft material layer is run through in described hole portion.
Alternatively, the hole portion on the hole portion on described baffle plate and described first side, the second side is facing each other.
Alternatively, the hole portion on described first side, the second side and described baffle plate is circle.
Alternatively, the diameter in each described hole portion is 2-5 millimeter.
Alternatively, the described second side shutoff of described pulp-collecting box is in the dust shield porch of described dust exhaust apparatus.
Alternatively, the filter cylinder for Chalk-dust filtering is also provided with in the rear end of described dust shield.
Alternatively, below described filter cylinder, also dust bag is provided with.
Alternatively, described first side plate, the second side plate, each described baffle plate are respectively the gauze be made up of fine rule.
A kind of dust collecting process being applicable to electrodes of lithium-ion batteries that the embodiment of the present invention provides, comprising:
Below the discharging opening above-mentioned arbitrary described material-receiving device being placed on the die-cutting device for cutting pole piece,
The pole piece cut falls to described pulp-collecting box from described discharging opening,
In described pole piece dropping process, the blowout of described ion blower include cation, the air mass of anion contacts with described pole piece, neutralize the charged dust around described pole piece and described pole piece, under described air mass effect, dust around described pole piece and described pole piece, through the hole portion of described second side of described pulp-collecting box, enters described dust exhaust apparatus.
Alternatively, the air pressure in described dust exhaust apparatus is lower than external pressure, and under the effect of negative pressure, described dust is sucked into described dust exhaust apparatus from described dust shield entrance.
Alternatively, after described dust enters the dust shield of described dust exhaust apparatus, be filtered at the filter cylinder place of dust shield rear end,
The rear air outlet of described air mass from described dust exhaust apparatus after described filter cylinder flows out.
Therefore, application the present embodiment technical scheme, can pole piece removed by air mass effect from the process that die-cutting device falls pole piece and around dust, it sweeps pole piece and dedusting technology scheme relative in prior art by artificial brush brush, adopt the efficiency of the present embodiment technical scheme higher, and when air mass dedusting by ion wind air mass in and due to charged and be easily attached to the dust of pole piece, dust can be made to be easier to be taken away by air mass, make dust removing effects better, and avoid the secondary pollution of brush to pole piece or the damage to pole piece, reduce by a zero electric rate (to the zero electric rate that laminated cell body examination obtains after lamination) of lithium ion battery, reduce the low pressure rate of battery and low capacity rate.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a application's part, does not form inappropriate limitation of the present invention.
Fig. 1 is a kind of for connecing the material-receiving device structural representation putting lithium ion battery pole piece for what provide in the embodiment of the present invention 1.
Reference numeral:
101: pulp-collecting box; 102: dust exhaust apparatus; 103: the first sides;
104: the second sides; 105: baffle plate; 106: dust shield.
Detailed description of the invention
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Shown in Figure 1, present embodiments provide and a kind ofly can be used for connecing the material-receiving device putting the pole piece just cut down from die-cutting device, applying this material-receiving device can carry out dust removal process to pole piece in splicing process.
This material-receiving device mainly comprises pulp-collecting box 101, ion blower (not shown in FIG.) and dust exhaust apparatus 102 for catching pole piece.
Porous portion is perhaps evenly equipped with respectively on the first surface, side 104, side 103, second that pulp-collecting box 101 is relative, ion blower is arranged on outside the first side 103 of pulp-collecting box 101, air outlet is relative with the first side 103, and the air mass of ion blower blowout can through the hole portion of the first side 103.
Dust exhaust apparatus 102 is arranged on outside the second side 104 of pulp-collecting box 101, and dust shield 106 entrance is relative with the second side 104 of pulp-collecting box 101, air mass from the second side 104 out after can enter dust shield 106.
When applying, below the discharging opening above-mentioned material-receiving device being placed on die-cutting device, can drop in pulp-collecting box 101 from discharging opening pole piece out.Start ion blower and dust exhaust apparatus 102.
At pole piece from the process that discharging opening falls, the air mass of ion blower blowout includes cation, anion, air mass fully contacts with the pole piece being in falling state, cation in air mass, anion be attached to pole piece and the charged dust around pole piece combines, neutralize charged dust, so that dust is no longer attached to pole piece under air mass effect, and blown away by air mass, under air mass effect, dust is through the hole portion of the second side 104 of pulp-collecting box 101, enter dust exhaust apparatus 102, to reach the object of pole piece dedusting.
Therefore, application the present embodiment technical scheme, can pole piece removed by air mass effect from the process that die-cutting device falls pole piece and around dust, it sweeps pole piece and dedusting technology scheme relative in prior art by artificial brush brush, adopt the efficiency of the present embodiment technical scheme higher, and when air mass dedusting by ion wind air mass in and due to charged and be easily attached to the dust of pole piece, dust can be made to be easier to be taken away by air mass, make dust removing effects better, and avoid the secondary pollution of brush to pole piece or the damage to pole piece, reduce by a zero electric rate (to the zero electric rate that laminated cell body examination obtains after lamination) of lithium ion battery, reduce the low pressure rate of battery and low capacity rate.
As the signal of the present embodiment, the bore portion on the first side 104, side 103, second of the present embodiment pulp-collecting box 101 Cheng array-like evenly not arranged, and facing each other, and the air mass of ion blower can better be passed through from the first side 104, side 103, second.
As the signal of the present embodiment, current die-cutting device is when can cut out two or more pole piece simultaneously, baffle plate 105 can be set in the pulp-collecting box 101 of the present embodiment, baffle plate 105 in like manner is distributed with the first side 104, side 103, second porous portion perhaps.For example, if when current die-cutting device can cut out the pole piece of two opposing mirror image symmetries simultaneously, an above-mentioned baffle plate 105 is provided with in pulp-collecting box 101, two pole pieces simultaneously cut drop to the both sides of terminal box baffle plate 105 respectively, to stack respectively, be convenient to the arrangement of pole piece, and pole piece can be avoided to fall interlaced and cause mutually scratching between pole piece and causing pole piece damage etc.In the process that two pole pieces fall, ion blower carries out dedusting to two pole pieces simultaneously
As the signal of the present embodiment; can also at the smooth soft material layer of baffle plate 105 outer wrapping of the present embodiment, this outer field inertia material is run through in each hole portion, guarantees ion wind air mass circulate; to avoid scratch pole piece in pole piece dropping process, improve the protection to pole piece.
As the signal of the present embodiment, the bore portion on the first side 104, side 103, second and each baffle plate 105 between the first side 104, side 103, second can be made not align mutually right, so that the smooth process of ion wind air mass and Hui Cheng, improve the effect removing dust.
As the signal of the present embodiment, preferably but be not limited to the hole portion on the first side 104, side 103, second and each baffle plate 105 between the first side 104, side 103, second to be set to circular hole, each adjacent circular hole is substantially tangent, to improve the circulation area of ion wind air mass substantially, improve the effect removing dust.
As the signal of the present embodiment, the diameter design in the hole portion on first side 104, side 103, second of the present embodiment and each baffle plate 105 between the first side 104, side 103, second is 2-5 millimeter, arrange in intensive shape, be conducive to improving dust removing effects.
As the signal of the present embodiment, the dust shield 106 being arranged on the dust exhaust apparatus 102 of the second side, side 104 of pulp-collecting box 101 covers on the second side 104, makes the second side 104 shutoff in the porch of dust shield 106.Like this, all can enter in dust exhaust apparatus 102 from the second side 104 dust out, avoid entered environment, cause secondary pollution.
As the signal of the present embodiment, be also provided with the filter cylinder for filtering dust in the rear end of dust shield 106, air mass is after filter cylinder, dust is trapped within filter cylinder, air mass after filtration from the air outlet of dust arrester out, is avoided dust entered environment, is caused secondary pollution.
In addition, a dust bag is also provided with in the below of filter cylinder, when a period of time used by dust exhaust apparatus 102, when dust on its filter cylinder runs up to a certain amount of, dust can also be made to depart from filter cylinder by anti-air-blowing group to fall in dust bag, to avoid because the laying dust of equipment own too much causes the problem of pick-up performance difference.
As the signal of the present embodiment, the net that is made up of multiple fine rule can also be adopted as the baffle plate 105 of pulp-collecting box 101 and the first side plate, the second side plate, with its hole portion area of maximized increase, improve the smoothness that air mass and dust pass through further, improve dust removing effects.
As the signal of the present embodiment, preferably but be not limited to the air outlet of ion blower to cover on the first side plate, the ion wind air mass making it blow out all enters pulp-collecting box 101 through the first side plate, avoids being blown into above pulp-collecting box 101 and causing pole piece sideslip, guarantees that pole piece automatic stacking is neat.
As the signal of the present embodiment, length and the width of the pulp-collecting box 101 of the present embodiment are determined according to the specification of current pole piece, for example its length can be set to 1-40 centimetre, width is set to 2-30 centimetre, thus make pole piece just be limited in pulp-collecting box 101 and be not easy to horizontal displacement, thus ensure that the regularity of stacked pole piece, the height of pulp-collecting box 101 is set at least 25 centimetres, it highly can also be arranged according to current die-cutting device height overhead, that is designed by pulp-collecting box as far as possible is higher, to guarantee that pole piece fully contacts with ion wind air mass in pulp-collecting box 101, improve the dust removing effects to it, for example the height of pulp-collecting box 101 can be designed to 1 meter.
Test data analyzer:
Test example: adopt material-receiving device and dust collecting process described in embodiment 1 to carry out dust removal process to electrodes of lithium-ion batteries, simple in order to test, the die-cutting device of the present embodiment cuts out a slice pole piece at every turn.In pole piece dropping process, the ion blower of pulp-collecting box, dust exhaust apparatus work, blow out the air mass with cation and anion toward the first side.
Adopt above-mentioned technique to carry out the pole piece of dust removal process, prepare laminated lithium ion battery sample, measure the low pressure rate of lithium ion battery sample, zero electric rate and a low capacity rate, see shown in table one.
The specification of this laminated lithium ion battery sample is: ASP7042126-N2A-3700mAh.Wherein, AS represents pure cobalt water-base cathode, and 7042126 represent that the thick, wide, long of this polymer Li-ion battery is of a size of 7mm, 42mm, 126mm, N represents that nominal multiplying power is 5C, 2 represent that battery is high capacity type, and A represents just very pure cobalt acid lithium, the nominal capacity of 3700 expression batteries.
Visible in process of the test, due to the setting of pulp-collecting box, pole piece is neatly stacked in pulp-collecting box.
Reference examples 1:
The pulp-collecting box of the present embodiment is the convention square pulp-collecting box that four sides is blocking of plates, it is from the different of embodiment, to the process of pulp-collecting box, fan or air blast air blast is passed through under pole piece, produce air mass, air mass, from process above pulp-collecting box, carries out dedusting to the pole piece fallen from die-cutting device.The air mass speed formed in reference examples 1 is identical with test example.
The pole piece adopting above-mentioned technique to carry out dust removal process prepares lithium ion battery sample, measures zero electric rate, low pressure rate, a low capacity rate of lithium ion battery sample, see shown in table one.Wherein pole piece specification, battery preparation method and lithium ion battery specification are identical with test example.
Visible in process of the test, because air mass speed is reasonable, although pole piece can drop in pulp-collecting box, it puts uneven.
Reference examples 2:
The pulp-collecting box of the present embodiment is the convention square pulp-collecting box that four sides is blocking of plates, it is from the different of reference examples 1, from process die-cutting device, do not carry out air cleaning technique at pole piece, after pole piece is collected, adopt hairbrush to brush gently and sweep into row dust removal process.
The pole piece adopting above-mentioned technique to carry out dust removal process prepares lithium ion battery sample, measures zero electric rate, low pressure rate, a low capacity rate of lithium ion battery sample, see shown in table one.Wherein pole piece specification, battery preparation method and lithium ion battery specification are identical with test example.
The lithium ion battery got respectively in test example, reference examples 1,2 gets 100 as sample, tests zero electric rate, low pressure rate, a low capacity rate of each sample respectively, obtains data shown in table one.
Reference examples 3:
Adopt and carry out dust removal process with material-receiving device described in test example to electrodes of lithium-ion batteries, its technique and test example institute difference are, the scope of ion wheal is greater than the space projection of pulp-collecting box.
The pole piece adopting above-mentioned technique to carry out dust removal process prepares lithium ion battery sample, measures zero electric rate, low pressure rate, a low capacity rate of lithium ion battery sample, see shown in table one.Wherein pole piece specification, battery preparation method and lithium ion battery specification are identical with test example.
Table one: experimental test tables of data
| Project | Zero electric rate/(%) | Low pressure rate/(%) | Low capacity rate/(%) |
| Test example | 0.015 | 0.03 | 0.04 |
| Reference examples 1 | 0.20 | 0.18 | 0.14 |
| Reference examples 2 | 0.3 | 0.25 | 0.27 |
| Reference examples 3 | 0.05 | 0.13 | 0.20 |
Above-described embodiment, does not form the restriction to this technical scheme protection domain.The amendment done within any spirit at above-mentioned embodiment and principle, equivalently to replace and improvement etc., within the protection domain that all should be included in this technical scheme.
Claims (15)
1. for connecing the material-receiving device putting lithium ion battery pole piece, it is characterized in that, comprising:
Pulp-collecting box, in relative the first side of described pulp-collecting box, the second side surface distributes porose portion respectively;
Ion blower, is arranged on outside the first side of described pulp-collecting box, and air outlet is relative with described first side;
Dust exhaust apparatus, is arranged on outside the second side of described pulp-collecting box, and dust shield entrance is relative with described second side of described pulp-collecting box.
2. according to claim 1ly to it is characterized in that for connecing the material-receiving device putting lithium ion battery pole piece,
The hole portion be distributed on described first side, the second side is array-like arrangement.
3. according to claim 1ly to it is characterized in that for connecing the material-receiving device putting lithium ion battery pole piece,
Described hole portion on described first side, the second side is facing each other.
4. according to claim 1 or 2 or 3 for connecing the material-receiving device putting lithium ion battery pole piece, it is characterized in that,
In described pulp-collecting box, be also provided with baffle plate, also distribute porose portion at described baffle surface.
5. according to claim 4ly to it is characterized in that for connecing the material-receiving device putting lithium ion battery pole piece,
Also be enclosed with soft material layer outward at described baffle plate, described soft material layer is run through in described hole portion.
6. according to claim 5ly to it is characterized in that for connecing the material-receiving device putting lithium ion battery pole piece,
Hole portion on hole portion on described baffle plate and described first side, the second side is facing each other.
7. according to claim 4ly to it is characterized in that for connecing the material-receiving device putting lithium ion battery pole piece,
Hole portion on described first side, the second side and described baffle plate is circle.
8. according to claim 7ly to it is characterized in that for connecing the material-receiving device putting lithium ion battery pole piece,
The diameter in each described hole portion is 2-5 millimeter.
9. according to claim 1 or 2 or 3 for connecing the material-receiving device putting lithium ion battery pole piece, it is characterized in that,
The described second side shutoff of described pulp-collecting box is in the dust shield porch of described dust exhaust apparatus.
10. according to claim 1 or 2 or 3 for connecing the material-receiving device putting lithium ion battery pole piece, it is characterized in that,
The filter cylinder for Chalk-dust filtering is also provided with in the rear end of described dust shield.
11. according to claim 10ly is characterized in that for connecing the material-receiving device putting lithium ion battery pole piece,
Also dust bag is provided with below described filter cylinder.
12. according to claim 4ly is characterized in that for connecing the material-receiving device putting lithium ion battery pole piece,
Described first side plate, the second side plate, each described baffle plate are respectively the gauze be made up of fine rule.
13. 1 kinds of dust collecting process being applicable to electrodes of lithium-ion batteries, is characterized in that, comprising:
Below the discharging opening arbitrary described material-receiving device of claim 1 to 12 being placed on the die-cutting device for cutting pole piece,
The pole piece cut falls to described pulp-collecting box from described discharging opening,
In described pole piece dropping process, the blowout of described ion blower include cation, the air mass of anion contacts with described pole piece, neutralize the charged dust around described pole piece and described pole piece, under described air mass effect, dust around described pole piece and described pole piece, through the hole portion of described second side of described pulp-collecting box, enters described dust exhaust apparatus.
14. dust collecting process being applicable to electrodes of lithium-ion batteries according to claim 13, is characterized in that,
Air pressure in described dust exhaust apparatus is lower than external pressure, and under the effect of negative pressure, described dust is sucked into described dust exhaust apparatus from described dust shield entrance.
15. dust collecting process being applicable to electrodes of lithium-ion batteries according to claim 14, is characterized in that,
After described dust enters the dust shield of described dust exhaust apparatus, be filtered at the filter cylinder place of dust shield rear end,
The rear air outlet of described air mass from described dust exhaust apparatus after described filter cylinder flows out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410748892.3A CN104475611B (en) | 2014-12-09 | 2014-12-09 | Be applicable to dust collecting process and the material-receiving device of electrodes of lithium-ion batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410748892.3A CN104475611B (en) | 2014-12-09 | 2014-12-09 | Be applicable to dust collecting process and the material-receiving device of electrodes of lithium-ion batteries |
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| Publication Number | Publication Date |
|---|---|
| CN104475611A CN104475611A (en) | 2015-04-01 |
| CN104475611B true CN104475611B (en) | 2016-04-06 |
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| CN106670336A (en) * | 2016-12-28 | 2017-05-17 | 苏州慕尚自动化科技有限公司 | Electrode plate collecting box |
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| JP2006324218A (en) * | 2005-05-20 | 2006-11-30 | Sumitomo Electric Ind Ltd | Lithium battery and method of manufacturing same |
| CN202137170U (en) * | 2011-06-15 | 2012-02-08 | 中航锂电（洛阳）有限公司 | Dust removing workbench for production of lithium battery pole pieces |
| CN102389881A (en) * | 2011-07-19 | 2012-03-28 | 浙江佳贝思绿色能源有限公司 | Suction machine for pole shoes of battery |
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| CN104475611A (en) | 2015-04-01 |
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