CN106784602A - A kind of cylindrical lithium ion battery pole piece winds burr removing method - Google Patents
A kind of cylindrical lithium ion battery pole piece winds burr removing method Download PDFInfo
- Publication number
- CN106784602A CN106784602A CN201611234322.8A CN201611234322A CN106784602A CN 106784602 A CN106784602 A CN 106784602A CN 201611234322 A CN201611234322 A CN 201611234322A CN 106784602 A CN106784602 A CN 106784602A
- Authority
- CN
- China
- Prior art keywords
- pole piece
- ion battery
- lithium
- winds
- lithium ion
- 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
- H01M4/04—Processes of manufacture in general
-
- 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
Abstract
The invention discloses a kind of cylindrical lithium ion battery pole piece winding burr removing method, the electrodes of lithium-ion batteries includes collector and both positive and negative polarity active material layer, the both positive and negative polarity active material layer is coated on a current collector by lithium ion battery distributing, coating process, again by roll-in, continuous baking, separating and cutting process, it is made electrodes of lithium-ion batteries, when the electrodes of lithium-ion batteries winds, before single branch core winding terminates, when cutting knife is cut electrodes of lithium-ion batteries, adhesive tape is sticked in the positive pole and negative electrode active material layer for cutting position.The advantage of the invention is that：A kind of cylindrical lithium ion battery pole piece winds burr removing method, at the end of single branch core winds just, when cutting positive/negative plate high temperature gummed tape is posted in dressing, coming off for cutting edge pole piece powder burr can be prevented, reduce the battery core short-circuit conditions caused by burr pierces through barrier film, improve the cycle performance and security performance of battery.
Description
Technical field
The present invention relates to technical field of lithium batteries, more particularly to a kind of cylindrical lithium ion battery pole piece winding deburring side
Method.
Background technology
With the development of modern society, various mobile devices, such as video camera, notebook computer, portable DVD player and number
Camera etc. has and is increasingly widely applied, and these mobile devices are also increasing to the demand of high-energy battery.
Lithium ion battery is because with lightweight, energy storage is big, power is big, pollution-free, long lifespan, self discharge coefficient be small, temperature
The advantage of many protrusions such as accommodation is wide in range, is gradually favored, the optimal power supply as mobile device by people, or even
Also other conventional batteries are progressively instead of in the fields such as Aeronautics and Astronautics, navigation, automobile, Medical Devices.
In the manufacturing process of lithium ion battery, easily the powder of adhesion is produced at the place of cutting when being wound to battery pole piece
Material burr, powder burr easily extrudes pole piece and barrier film, causes battery core short circuit, reduces the cycle performance and security of battery
Energy.
In order to solve the above problems, the present inventor designs a kind of cylindrical lithium ion battery pole piece winding deburring side
Method.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of cylindrical lithium ion battery pole simple to operate, reasonable in design
Piece winds burr removing method.
In order to solve the above technical problems, the technical scheme is that：A kind of cylindrical lithium ion battery pole piece winding goes
Burr method, its innovative point is：The electrodes of lithium-ion batteries includes collector and both positive and negative polarity active material layer, described positive and negative
Pole active material layer is coated on the collector by lithium ion battery distributing, coating process, then by roll-in, continuous baking
Roasting, separating and cutting process, is made electrodes of lithium-ion batteries, when the electrodes of lithium-ion batteries winds, after single branch core winding terminates,
Before cutting knife cuts electrodes of lithium-ion batteries, adhesive tape is sticked in the positive pole and negative electrode active material layer for cutting position.
Further, the up- coiler has additional rubberizing belting before cutting position.
Further, the adhesive tape is high temperature gummed tape.
Further, the thickness of the high temperature gummed tape is 10-80 μm, and width is 10mm.
Further, the of length no more than pole piece width of the high temperature gummed tape rubberizing but negative or positive electrode active matter must be covered
Matter layer.
The advantage of the invention is that：
（1）At the end of single branch core winds just, when cutting electrodes of lithium-ion batteries, the positive pole and negative electrode active of position are being cut
Material layer is taped, and can prevent coming off for cutting edge pole piece powder burr, reduces the battery core short circuit caused by burr pierces through barrier film
Situation, improves the cycle performance and security performance of battery.
（2）Adhesive tape is high temperature gummed tape, good with viscosity, the characteristic such as high temperature resistant, solvent resistant, confining force are strong.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the electrodes of lithium-ion batteries structure that a kind of cylindrical lithium ion battery pole piece of the invention winds burr removing method
Schematic diagram.
Specific embodiment
The following examples can make professional and technical personnel that the present invention is more fully understood, but therefore not send out this
It is bright to be limited among described scope of embodiments.
As shown in figure 1, a kind of cylindrical lithium ion battery pole piece winding burr removing method, electrodes of lithium-ion batteries is including collecting
Fluid 1 and both positive and negative polarity active material layer 2, both positive and negative polarity active material layer 2 are coated in collection by lithium ion battery distributing, coating process
On fluid 1, then by roll-in, continuous baking, separating and cutting process, electrodes of lithium-ion batteries is made, increased before up- coiler cuts position
Rubberizing belting is provided with, when electrodes of lithium-ion batteries winds, after single branch core winding terminates, cutting knife cuts lithium ion cell electrode
Before piece, rubberizing belting sticks adhesive tape in the positive pole and negative electrode active material layer for cutting position, and adhesive tape is high temperature gummed tape 3, is had
Viscosity is good, the characteristic such as high temperature resistant, solvent resistant, confining force are strong, and the thickness of high temperature gummed tape 3 is 10-80 μm, and width is 10mm, high temperature
The of length no more than pole piece width of the rubberizing of adhesive tape 3 but negative or positive electrode active material layer must be covered, the rubberizing of high temperature gummed tape 3 terminates
Afterwards, Scissoring device cuts to pole piece, cuts position 4 and is in the high temperature gummed tape width range.
A kind of cylindrical lithium ion battery pole piece winds burr removing method, powder when can avoid cutting electrodes of lithium-ion batteries
Fall in core, cause battery short circuit to be scrapped because powder pierces through barrier film so as to avoid, improve the qualification rate of battery core, together
When improve the cycle performance and security performance of battery.
General principle of the invention and principal character and advantages of the present invention has been shown and described above.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the simply explanation described in above-described embodiment and specification
Principle of the invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and
Its equivalent thereof.
Claims (5)
1. a kind of cylindrical lithium ion battery pole piece winds burr removing method, and the electrodes of lithium-ion batteries is including collector and just
Negative electrode active material layer, the both positive and negative polarity active material layer is coated in the afflux by lithium ion battery distributing, coating process
On body, then by roll-in, continuous baking, separating and cutting process, it is made electrodes of lithium-ion batteries, it is characterised in that：The lithium-ion electric
During the pole piece coiling of pond, single branch core winding terminate after, before cutting knife cuts electrodes of lithium-ion batteries, cut position positive pole and
Negative electrode active material layer sticks adhesive tape.
2. a kind of cylindrical lithium ion battery pole piece according to claim 1 winds burr removing method, it is characterised in that：Institute
State before up- coiler cuts position and have additional rubberizing belting.
3. a kind of cylindrical lithium ion battery pole piece according to claim 2 winds burr removing method, it is characterised in that：Institute
Adhesive tape is stated for high temperature gummed tape.
4. a kind of cylindrical lithium ion battery pole piece according to claim 3 winds burr removing method, it is characterised in that：Institute
The thickness of high temperature gummed tape is stated for 10-80 μm, width is 10mm.
5. a kind of cylindrical lithium ion battery pole piece according to claim 4 winds burr removing method, it is characterised in that：Institute
State the of length no more than pole piece width of high temperature gummed tape rubberizing but negative or positive electrode active material layer must be covered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234322.8A CN106784602A (en) | 2016-12-28 | 2016-12-28 | A kind of cylindrical lithium ion battery pole piece winds burr removing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234322.8A CN106784602A (en) | 2016-12-28 | 2016-12-28 | A kind of cylindrical lithium ion battery pole piece winds burr removing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106784602A true CN106784602A (en) | 2017-05-31 |
Family
ID=58924716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611234322.8A Pending CN106784602A (en) | 2016-12-28 | 2016-12-28 | A kind of cylindrical lithium ion battery pole piece winds burr removing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106784602A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808117A (en) * | 2018-06-21 | 2018-11-13 | 合肥国轩高科动力能源有限公司 | A method of preventing lithium battery coiling core diaphragm stain |
| RU2683237C1 (en) * | 2017-06-20 | 2019-03-27 | Тойота Дзидося Кабусики Кайся | Assembled accumulator battery, accumulator module and method of manufacture of assembled accumulator battery |
| CN110676527A (en) * | 2019-10-12 | 2020-01-10 | 厦门翔澧工业设计有限公司 | Device for removing charge and discharge burrs and battery |
| CN110911627A (en) * | 2019-10-25 | 2020-03-24 | 合肥国轩高科动力能源有限公司 | Method for forming tab of intermittent coating type battery pole piece |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1996643A (en) * | 2006-12-26 | 2007-07-11 | 天津力神电池股份有限公司 | A square lithium battery with the high insulation performance and its making method |
| CN101442114A (en) * | 2007-11-20 | 2009-05-27 | 比亚迪股份有限公司 | Preparation method for lithium ion battery pole piece |
| CN201466093U (en) * | 2009-06-30 | 2010-05-12 | 天津力神电池股份有限公司 | Battery pole piece with protective adhesive tapes |
| CN205723770U (en) * | 2016-06-30 | 2016-11-23 | 横店集团东磁股份有限公司 | The electrode of a kind of battery and lithium ion battery |
-
2016
- 2016-12-28 CN CN201611234322.8A patent/CN106784602A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1996643A (en) * | 2006-12-26 | 2007-07-11 | 天津力神电池股份有限公司 | A square lithium battery with the high insulation performance and its making method |
| CN101442114A (en) * | 2007-11-20 | 2009-05-27 | 比亚迪股份有限公司 | Preparation method for lithium ion battery pole piece |
| CN201466093U (en) * | 2009-06-30 | 2010-05-12 | 天津力神电池股份有限公司 | Battery pole piece with protective adhesive tapes |
| CN205723770U (en) * | 2016-06-30 | 2016-11-23 | 横店集团东磁股份有限公司 | The electrode of a kind of battery and lithium ion battery |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2683237C1 (en) * | 2017-06-20 | 2019-03-27 | Тойота Дзидося Кабусики Кайся | Assembled accumulator battery, accumulator module and method of manufacture of assembled accumulator battery |
| CN108808117A (en) * | 2018-06-21 | 2018-11-13 | 合肥国轩高科动力能源有限公司 | A method of preventing lithium battery coiling core diaphragm stain |
| CN110676527A (en) * | 2019-10-12 | 2020-01-10 | 厦门翔澧工业设计有限公司 | Device for removing charge and discharge burrs and battery |
| CN110911627A (en) * | 2019-10-25 | 2020-03-24 | 合肥国轩高科动力能源有限公司 | Method for forming tab of intermittent coating type battery pole piece |
| CN110911627B (en) * | 2019-10-25 | 2022-03-11 | 合肥国轩高科动力能源有限公司 | Method for forming tab of intermittent coating type battery pole piece |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |