CN109301346B - Method for sticking insulating gummed paper on large lithium battery sheet - Google Patents
Method for sticking insulating gummed paper on large lithium battery sheet Download PDFInfo
- Publication number
- CN109301346B CN109301346B CN201811371468.6A CN201811371468A CN109301346B CN 109301346 B CN109301346 B CN 109301346B CN 201811371468 A CN201811371468 A CN 201811371468A CN 109301346 B CN109301346 B CN 109301346B
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- CN
- China
- Prior art keywords
- gummed paper
- insulating gummed
- pole piece
- insulating
- sheet
- 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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Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 15
- 238000003825 pressing Methods 0.000 claims description 28
- 238000005520 cutting process Methods 0.000 claims description 15
- 238000010030 laminating Methods 0.000 claims description 7
- 238000010926 purge Methods 0.000 claims description 6
- 238000007731 hot pressing Methods 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000002390 adhesive tape Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Primary Cells (AREA)
Abstract
The invention discloses a method for sticking insulating gummed paper on a large sheet of a lithium battery, which is characterized in that after pole pieces are manufactured on a sheet making machine, the insulating gummed paper is directly stuck on the front surface and the back surface of the manufactured large sheet of the pole pieces, the size of the insulating gummed paper is ensured to completely cover the corresponding surfaces of the large sheet of the pole pieces, and then the large sheet stuck with the insulating gummed paper is cut into small sheets with specified specifications. Compared with a mode of sticking small pieces of insulating gummed paper, the invention can effectively save the using amount of the insulating gummed paper, and the insulating gummed paper is tightly, flatly and durably stuck with the pole piece, thereby improving the safety performance of the product.
Description
Technical Field
The invention relates to a method for pasting insulating gummed paper on a large lithium battery in lithium battery preparation, and belongs to the technical field of lithium battery preparation.
Background
The lithium battery has the advantages of small volume, high energy, high cost and voltage, no environmental pollution, long cycle life, wide working temperature range and the like, and is widely applied to electronic products. The lithium battery is generally prepared by forming a cell from a positive electrode, a negative electrode and a separator, placing the cell in a battery case, and injecting a nonaqueous electrolytic solution into the battery case.
In the production process of the lithium battery cell, in order to ensure the safety performance of the lithium battery cell, a layer of insulating gummed paper is adhered to a pole piece of the battery cell. At present, the large roll of pole pieces are cut into small pieces and then are independently pasted with the insulating gummed paper. Due to the size problem of the pole piece after cutting, the insulating paper is pasted on the small piece, so that the insulating adhesive paper is easy to generate, and is either longer than the length of the small electric core to cause waste or shorter than the length of the small electric core to cause safety problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for sticking insulating gummed paper on a large lithium battery sheet so as to reduce the waste of the insulating gummed paper and ensure the safety performance.
In order to achieve the purpose, the invention adopts the technical scheme that: the method for sticking the insulating gummed paper to the large sheet of the lithium battery is characterized in that after the pole piece is manufactured on a sheet manufacturing machine, the insulating gummed paper is directly stuck to the front side and the back side of the manufactured large sheet of the pole piece, the size of the insulating gummed paper is ensured to completely cover the corresponding surface of the large sheet of the pole piece, and then the large sheet stuck with the insulating gummed paper is cut into small sheets with the specified specification.
Preferably, the specific process of pasting the insulating gummed paper comprises the following steps: s1: carrying out surface purging on a large pole piece from a sheet making machine by using compressed inert gas; s2: feeding the pole piece to an area for pasting the insulating gummed paper, wherein the walking direction of the insulating gummed paper is opposite to the walking direction of the large pole piece, the insulating gummed paper is positioned on the large pole piece, a pressing block is pressed on the insulating gummed paper in the pasting process of the insulating gummed paper and the large pole piece, the pressing block moves along with the insulating gummed paper, and the insulating gummed paper adhered on the pole piece is leveled and pressed tightly under the action of the pressing block until the work of pasting the insulating gummed paper on one side is finished; s3: the big pole piece of upset likewise, guarantees that the walking direction of insulating adhesive tape is relative with the walking direction of big pole piece, presses the briquetting to press on insulating paper and follow the insulating adhesive tape and remove according to the briquetting at the laminating in-process of insulating adhesive tape and big pole piece, under the effect of pressing the briquetting, with the insulating paper flattening of adhesion on the pole piece, compress tightly, accomplish the subsides insulating adhesive tape work of another side.
Preferably, the specific process of cutting the large sheets into small sheets is as follows: and (3) conveying the large sheet with the front side and the back side stuck with the insulating gummed paper to a slitting area, performing die cutting by vertically feeding a die cutter which is matched with the specification of the small sheet from the right side of the large sheet, and conveying the small sheet obtained by die cutting to a hot pressing area for hot pressing and shaping at the temperature of 30-40 ℃ according to the sequence of die cutting from left to right and from front to back.
Preferably, the size of the periphery of the insulating gummed paper is 1-3cm larger than that of the periphery of the pole piece.
Compared with the prior art, the invention has the beneficial effects that: compared with the mode of sticking the insulating gummed paper on a small piece, the method can effectively save the using amount of the insulating gummed paper (about 5-8 percent), and the insulating gummed paper is tightly, flatly and durably stuck with the pole piece, thereby improving the safety performance of the product.
Detailed Description
The invention will now be further elucidated with reference to specific embodiments.
Example one
The method for sticking the insulating gummed paper on the large lithium battery sheet is realized by the following steps:
s1: carrying out surface purging on a large pole piece from a sheet making machine by using compressed inert gas, wherein the gas flow rate is 45m/s and the pressure is 0.8Mpa during purging;
s2: feeding the pole piece to an area for pasting the insulating gummed paper, wherein the walking direction of the insulating gummed paper is opposite to the walking direction of the large pole piece, the insulating gummed paper is positioned on the large pole piece, a pressing block is pressed on the insulating gummed paper in the pasting process of the insulating gummed paper and the large pole piece, the pressing block moves along with the insulating gummed paper, and the insulating gummed paper adhered on the pole piece is leveled and pressed tightly under the action of the pressing block until the work of pasting the insulating gummed paper on one side is finished; the step ensures that the size of the insulating gummed paper completely covers the corresponding surface of the large pole piece, and preferably, the size of the periphery of the insulating gummed paper is 3cm larger than that of the periphery of the large pole piece;
s3: turning over the large pole piece, ensuring that the traveling direction of the insulating gummed paper is opposite to that of the large pole piece, pressing the pressing block on the insulating gummed paper in the laminating process of the insulating gummed paper and the large pole piece, enabling the pressing block to move along with the insulating gummed paper, and leveling and pressing the insulating gummed paper adhered to the pole piece under the action of the pressing block to finish the work of laminating the insulating gummed paper on the other side; the step also ensures that the size of the insulating gummed paper completely covers the corresponding surface of the large pole piece, and preferably, the size of the periphery of the insulating gummed paper is 3cm larger than that of the periphery of the large pole piece;
s4: conveying the large sheets with the front and back sides pasted with the insulating gummed paper to a cutting area, and performing die cutting by vertically feeding the large sheets with a die cutter which is matched with the small sheets in specification, wherein the die cutting sequence is from left to right, from front to back;
s5: the die cut pieces were sent to a hot nip and hot press shaped at 35 ℃.
Example two
The method for sticking the insulating gummed paper on the large lithium battery sheet is realized by the following steps:
s1: carrying out surface purging on a large pole piece from a sheet making machine by using compressed inert gas, wherein the gas flow rate is 35m/s and the pressure is 0.9Mpa during purging;
s2: feeding the pole piece to an area for pasting the insulating gummed paper, wherein the walking direction of the insulating gummed paper is opposite to the walking direction of the large pole piece, the insulating gummed paper is positioned on the large pole piece, a pressing block is pressed on the insulating gummed paper in the pasting process of the insulating gummed paper and the large pole piece, the pressing block moves along with the insulating gummed paper, and the insulating gummed paper adhered on the pole piece is leveled and pressed tightly under the action of the pressing block until the work of pasting the insulating gummed paper on one side is finished; the step ensures that the size of the insulating gummed paper completely covers the corresponding surface of the large pole piece, and preferably the size of the periphery of the insulating gummed paper is 1.5cm larger than that of the periphery of the large pole piece;
s3: turning over the large pole piece, ensuring that the traveling direction of the insulating gummed paper is opposite to that of the large pole piece, pressing the pressing block on the insulating gummed paper in the laminating process of the insulating gummed paper and the large pole piece, enabling the pressing block to move along with the insulating gummed paper, and leveling and pressing the insulating gummed paper adhered to the pole piece under the action of the pressing block to finish the work of laminating the insulating gummed paper on the other side; the step also ensures that the size of the insulating gummed paper completely covers the corresponding surface of the large pole piece, and preferably the size of the periphery of the insulating gummed paper is 1.5cm larger than that of the periphery of the large pole piece;
s4: conveying the large sheets with the front and back sides pasted with the insulating gummed paper to a cutting area, and performing die cutting by vertically feeding the large sheets with a die cutter which is matched with the small sheets in specification, wherein the die cutting sequence is from left to right, from front to back;
s5: the die cut pieces were sent to a hot pressing area and hot pressed at 40 ℃.
Claims (1)
1. A method for sticking insulating gummed paper on a large sheet of a lithium battery is characterized in that after pole pieces are manufactured on a sheet making machine, the insulating gummed paper is directly stuck on the front surface and the back surface of the manufactured large sheet of the pole pieces, the size of the insulating gummed paper is ensured to completely cover the corresponding surface of the large sheet of the pole pieces, then the large sheet stuck with the insulating gummed paper is cut into small sheets with specified specifications, and the specific process is as follows:
s1: carrying out surface purging on a large pole piece from a sheet making machine by using compressed inert gas;
s2: feeding the pole piece to an area for pasting the insulating gummed paper, wherein the walking direction of the insulating gummed paper is opposite to the walking direction of the large pole piece, the insulating gummed paper is positioned on the large pole piece, a pressing block is pressed on the insulating gummed paper in the pasting process of the insulating gummed paper and the large pole piece, the pressing block moves along with the insulating gummed paper, and the insulating gummed paper adhered on the pole piece is leveled and pressed tightly under the action of the pressing block until the work of pasting the insulating gummed paper on one side is finished;
s3: turning over the large pole piece, ensuring that the traveling direction of the insulating gummed paper is opposite to that of the large pole piece, pressing the pressing block on the insulating gummed paper in the laminating process of the insulating gummed paper and the large pole piece, enabling the pressing block to move along with the insulating gummed paper, and leveling and pressing the insulating gummed paper adhered to the pole piece under the action of the pressing block to finish the work of laminating the insulating gummed paper on the other side;
and the specific process of cutting the large sheet into small sheets is as follows: and (3) conveying the large sheet with the front side and the back side stuck with the insulating gummed paper to a slitting area, performing die cutting by vertically feeding a die cutter which is matched with the specification of the small sheet from the right side of the large sheet, and conveying the small sheet obtained by die cutting to a hot pressing area for hot pressing and shaping at the temperature of 30-40 ℃ according to the sequence of die cutting from left to right and from front to back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811371468.6A CN109301346B (en) | 2018-11-18 | 2018-11-18 | Method for sticking insulating gummed paper on large lithium battery sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811371468.6A CN109301346B (en) | 2018-11-18 | 2018-11-18 | Method for sticking insulating gummed paper on large lithium battery sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109301346A CN109301346A (en) | 2019-02-01 |
| CN109301346B true CN109301346B (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811371468.6A Active CN109301346B (en) | 2018-11-18 | 2018-11-18 | Method for sticking insulating gummed paper on large lithium battery sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109301346B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3611961A (en) * | 1970-06-09 | 1971-10-12 | Farah Mfg Co Inc | Automatic welting patch and liner assembler and sewing device therefor |
| JPS60216448A (en) * | 1984-04-10 | 1985-10-29 | Yuasa Battery Co Ltd | Paste type negative plate for alkaline storage battery |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2749062Y (en) * | 2004-11-29 | 2005-12-28 | 比亚迪股份有限公司 | Automatic turning-over rubberizing machine |
| CN101442114B (en) * | 2007-11-20 | 2010-11-17 | 比亚迪股份有限公司 | Preparation method for lithium ion battery pole piece |
| CN201282162Y (en) * | 2008-07-25 | 2009-07-29 | 深圳市吉阳自动化科技有限公司 | Device for sticking gummed paper on battery pole piece |
| CN205355149U (en) * | 2016-01-26 | 2016-06-29 | 大荔德飞新能源科技有限公司 | Nickel -hydrogen battery positive plate dust removal rubberizing device |
| CN107732308B (en) * | 2017-08-22 | 2019-10-22 | 东莞市蓉工自动化科技有限公司 | A kind of lithium battery taping machine positioning blowing and pressure zone one |
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2018
- 2018-11-18 CN CN201811371468.6A patent/CN109301346B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3611961A (en) * | 1970-06-09 | 1971-10-12 | Farah Mfg Co Inc | Automatic welting patch and liner assembler and sewing device therefor |
| JPS60216448A (en) * | 1984-04-10 | 1985-10-29 | Yuasa Battery Co Ltd | Paste type negative plate for alkaline storage battery |
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| Publication number | Publication date |
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| CN109301346A (en) | 2019-02-01 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A method for pasting insulating tape on large pieces of lithium battery Effective date of registration: 20211230 Granted publication date: 20200911 Pledgee: Changde Finance Guarantee Co.,Ltd. Pledgor: HUNAN ANDEFENG NEW ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2021980017072 |
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Date of cancellation: 20230109 Granted publication date: 20200911 Pledgee: Changde Finance Guarantee Co.,Ltd. Pledgor: HUNAN ANDEFENG NEW ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2021980017072 |
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Denomination of invention: A method of pasting insulating tape on a large piece of lithium battery Effective date of registration: 20230129 Granted publication date: 20200911 Pledgee: Changde Finance Guarantee Co.,Ltd. Pledgor: HUNAN ANDEFENG NEW ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2023980031107 |
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Date of cancellation: 20231204 Granted publication date: 20200911 Pledgee: Changde Finance Guarantee Co.,Ltd. Pledgor: HUNAN ANDEFENG NEW ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2023980031107 |
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