CN107895775A - A kind of tape splicing method during film-making process broken belt - Google Patents
A kind of tape splicing method during film-making process broken belt Download PDFInfo
- Publication number
- CN107895775A CN107895775A CN201711072893.0A CN201711072893A CN107895775A CN 107895775 A CN107895775 A CN 107895775A CN 201711072893 A CN201711072893 A CN 201711072893A CN 107895775 A CN107895775 A CN 107895775A
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- CN
- China
- Prior art keywords
- broken belt
- pole piece
- tape splicing
- making process
- material area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention discloses tape splicing method during a kind of film-making process broken belt, including step 1：Confirm broken belt position, mark impacted pole piece；Step 2：Impacted pole piece is cropped；Step 3：The pole piece after waste paper will be cut to align along shearing, distinguish pasted with high temperature-resistant PET adhesive tapes in the positive and negative of pole piece.Beneficial effects of the present invention：Ensure that slitting, die cutting procedure are not influenceed by adhesive tape used in tape splicing as far as possible；Adhesive tape disconnects and broken belt again when can effectively avoid high-temperature baking using high temperature resistant PET adhesive tapes；Can effectively avoid because tape splicing and caused by pole piece expect that section length is unqualified after cross cutting, reduce die cutting procedure scrappage.
Description
Technical field
The present invention relates to field of lithium ion battery, it particularly relates to tape splicing method during a kind of film-making process broken belt.
Background technology
In the production of lithium ion cell electrode film-making process, the problem of being frequently encountered broken belt, and to be tried one's best in tape splicing
Too many no face will not be produced because of tape splicing and to rear process by, which ensureing, rings, will not because tape splicing and caused by scrap too much.In stacked lithium
In ion battery production, die-cutting machine starts to measure colour code after the colour code different information of blank space among pole piece with material area is received
To the distance of mould, die station is determined with this, if caused by because of preceding process broken belt tape splicing tape splicing opening position pole piece material
Section length diminishes, then follow-up pole piece cross cutting will be impacted, cause because tape splicing position is improper and at least caused by five arrive
The pole piece cross cutting Hou Liao areas size of ten does not meet technological requirement and scrapped.Therefore when broken belt occurs in current process, to select to close
Suitable tape splicing position, ensure that the pole piece residing for tape splicing position expects that section length is constant after tape splicing.
In addition, selection during tape splicing for adhesive tape is also very crucial, although common adhesive tape caking property is strong, because
Width is big and thicker, and banding machine cutting knife can be caused necessarily to wear, and causes the reduction of cutting knife service life, while be also possible to because dividing
Bar machine-cut knife can't cut adhesive tape and tear broken belt, although aluminum foil and adhesive tape because material with anode electrode current collector material identical, right and wrong
Often adhesive tape selected by suitable tape splicing, but because aluminum foil and adhesive tape can disturb color spot graph of the cross cutting machine equipment to middle blank space,
" colour code to die location " distance is allowed to get muddled and cause at least five pole pieces to be scrapped because expecting area's off-dimension.
The problem of in correlation technique, effective solution is not yet proposed at present.
The content of the invention
For the above-mentioned technical problem in correlation technique, the present invention proposes tape splicing method during a kind of film-making process broken belt,
To overcome currently available technology above shortcomings.
To realize above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of tape splicing method during film-making process broken belt, the film-making process include lithium ion cell electrode band, the electrode band
Square material area including several series connection, it is left white provided with centre between the two neighboring material area, lithium-ion electric described in the material area
Pond, comprise the following steps：
Step 1：Confirm broken belt position, mark impacted material area；
Step 2：Impacted material area is cropped；
Step 3：The pole piece after waste paper will be cut to align along shearing, paste adhesive tape respectively in the positive and negative of pole piece.
Further, the step 2 includes：
Step 2-1：First intersection cut-out is left white on the left of breaking part along material area and centre；
Step 2-2：It is left white again on the right side of breaking part along centre and expects area's intersection cut-out.
Further, the adhesive tape is high temperature resistant PET adhesive tapes.
Further, it is big 3mm to 5mm to be left white width than among for the high temperature resistant PET adhesive tapes width.
Beneficial effects of the present invention：Ensure that slitting, die cutting procedure are not influenceed by adhesive tape used in tape splicing as far as possible；Use
Adhesive tape disconnects and broken belt again when high temperature resistant PET adhesive tapes can effectively avoid high-temperature baking；Can effectively avoid because of tape splicing and
Cause pole piece to expect that section length is unqualified after cross cutting, reduce die cutting procedure scrappage.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 be according to embodiments of the present invention a kind of described film-making process broken belt when tape splicing method schematic diagram；
In figure：1st, area one is expected；2nd, area two is expected；3rd, area three is expected；4th, centre is left white one；5th, centre is left white two；6th, high temperature resistant PET is transparent
Adhesive tape.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained, belong to what the present invention protected
Scope.
As shown in figure 1, one section of described pole piece, including material area 1, material area 22, material area 33 according to embodiments of the present invention,
1 are left white provided with centre between the material area 1 and material area 22, is left white between the material area 22 and material area 33 provided with centre
25, tape splicing method during a kind of described film-making process broken belt, comprises the following steps according to embodiments of the present invention：
Step 1：Confirm broken belt position, mark impacted material area 22.
Step 2：Impacted material area 22 is cropped, when cutting material area 22, first along material area on the left of breaking part
22 and centre be left white one 4 intersections cut-out, then on the right side of breaking part along centre be left white 25 and material the intersection of area 33 cut-out,
Ensure that the pole piece residing for tape splicing position expects that section length is constant after tape splicing, not impacted to follow-up pole piece cross cutting.
Step 3：The pole piece after waste paper will be cut to align along shearing, in the positive and negative difference pasted with high temperature-resistant PET of pole piece
Adhesive tape 6, the width of high temperature resistant PET adhesive tapes 6 are bigger 3mm than the width for being left white 1 to 5mm.
It can ensure that slitting, die cutting procedure are not influenceed by adhesive tape used in tape splicing as far as possible by the above method；Use
Adhesive tape disconnects and broken belt again when high temperature resistant PET adhesive tapes can effectively avoid high-temperature baking；Can effectively avoid because of tape splicing and
Cause pole piece to expect that section length is unqualified after cross cutting, reduce die cutting procedure scrappage.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (4)
1. tape splicing method during a kind of film-making process broken belt, the film-making process includes lithium ion cell electrode band, the electrode
Band includes the square material area of several series connection, being left white provided with centre between the two neighboring material area, lithium ion described in the material area
Battery, it is characterised in that comprise the following steps：
Step 1：Confirm broken belt position, mark impacted material area；
Step 2：Impacted material area is cropped；
Step 3：The pole piece after waste paper will be cut to align along shearing, paste adhesive tape respectively in the positive and negative of pole piece.
2. tape splicing method during a kind of film-making process broken belt according to claim 1, it is characterised in that the step 2 is wrapped
Include：
Step 2-1：First intersection cut-out is left white on the left of breaking part along material area and centre；
Step 2-2：It is left white again on the right side of breaking part along centre and expects area's intersection cut-out.
3. tape splicing method during a kind of film-making process broken belt according to claim 1, it is characterised in that the adhesive tape
For high temperature resistant PET adhesive tapes.
4. tape splicing method during a kind of film-making process broken belt according to claim 1, it is characterised in that the high temperature resistant
It is big 3mm to 5mm that PET adhesive tapes width is left white width than among.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072893.0A CN107895775A (en) | 2017-11-04 | 2017-11-04 | A kind of tape splicing method during film-making process broken belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072893.0A CN107895775A (en) | 2017-11-04 | 2017-11-04 | A kind of tape splicing method during film-making process broken belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107895775A true CN107895775A (en) | 2018-04-10 |
Family
ID=61803025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711072893.0A Pending CN107895775A (en) | 2017-11-04 | 2017-11-04 | A kind of tape splicing method during film-making process broken belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107895775A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142972A1 (en) * | 2022-01-29 | 2023-08-03 | 宁德时代新能源科技股份有限公司 | Electrode sheet forming method, manufacturing method for wound electrode assembly, and manufacturing method for laminated electrode assembly |
-
2017
- 2017-11-04 CN CN201711072893.0A patent/CN107895775A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142972A1 (en) * | 2022-01-29 | 2023-08-03 | 宁德时代新能源科技股份有限公司 | Electrode sheet forming method, manufacturing method for wound electrode assembly, and manufacturing method for laminated electrode assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180410 |
|
| WD01 | Invention patent application deemed withdrawn after publication |