CN102916226A - Coiling method of square power lithium-ion battery - Google Patents
Coiling method of square power lithium-ion battery Download PDFInfo
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- CN102916226A CN102916226A CN2012103509387A CN201210350938A CN102916226A CN 102916226 A CN102916226 A CN 102916226A CN 2012103509387 A CN2012103509387 A CN 2012103509387A CN 201210350938 A CN201210350938 A CN 201210350938A CN 102916226 A CN102916226 A CN 102916226A
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- lug
- coiler
- ion battery
- power lithium
- coiling
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- 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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- 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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- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention belongs to the technical field of lithium-ion batteries and particularly relates to a coiling method of a square power lithium-ion battery. The method includes the steps: firstly, adhering label adhesive tapes which serve as judgment of starting of a coiler on the upper surfaces of marking tabs of a pole piece coil stock; secondly, placing the pole piece coil stock on the coiler to be ready to start coiling, sensing labels of the marking tabs by a sensor of the coiler to begin to start, and computing the number of the tabs and the positioning length; and thirdly, computing the edge of the last tab for cutting by sensing of the senor to achieve coiling of a cell. The coiler judges the initial positions of the tabs for coiling by arranging special markings on the anode and cathode tabs, and the sensor computes the number of the tabs and the fixed length after the coiler is started and senses the edge of the last tab for positioning cutting to achieve coiling of the cell, so that use of dies needed by punching on the upper surface of a pole piece presently is cancelled, and the problem of burrs due to die punching is solved.
Description
Technical field
The invention belongs to technical field of lithium ion, relate in particular to a kind of method for winding of square power lithium ion battery.
Background technology
Square power lithium ion battery has the advantages such as high-energy-density, high working voltage and long life as a kind of environmental protection battery, therefore shows superior prospect aspect electric automobile and energy storage.
Square power lithium ion battery generally comprises battery container, is contained in the interior battery core of battery container, is filled in the electrolyte in the battery container, and seal group is connected to the battery cover board on the battery container, battery core by positive plate, negative plate and be arranged at positive plate and negative plate between membrane winding form, the outer surface of battery container also is coated with plastic film.
The used pole piece of square power lithium ion battery is continuously coating at present, for bad product sign in termination signal and the broken belt situation is arranged when reeling, 1), increased a procedure and check problem punching is as sign on pole piece, but the punching meeting of pole piece is brought following problem:; 2) risk that, has increased burr and fallen to expect; 3), the frequent cutting die, increased cost; 4), battery capacity loss.
Summary of the invention
The object of the invention is to: for the deficiencies in the prior art, and provide a kind of method for winding of square power lithium ion battery, the method is by arranging special identifier at the anode and cathode lug, make up-coiler judge its original position and coiling, calculate lug number fixed length by transducer after starting, respond to last location, lug edge and cut, realize the coiling of battery core, thereby cancellation has the required mould use of punching on pole piece now, and solves the Burr Problem that has die punching to bring.
In order to achieve the above object, the present invention adopts following technical scheme: the method for winding of square power lithium ion battery, may further comprise the steps: step 1, the gummed paper of on the sign lug of pole piece coiled strip, labelling, the judgement that described label gummed paper starts as up-coiler; Step 2, place up-coiler to prepare to begin to reel the pole piece coiled strip, the label that the inductor of up-coiler is responded to described sign lug begins to start, and calculates lug number and position length; The edge of step 3, last lug of calculating by the inductor induction meter of step 2 cuts, and realizes the coiling of battery core.
A kind of improvement as the method for winding of square power lithium ion battery of the present invention is provided with at least two lugs in described lug coiled strip, the material of each lug is Copper Foil or aluminium foil, and being shaped as of cross section is trapezoidal.
As a kind of improvement of the method for winding of square power lithium ion battery of the present invention, the thickness of each lug is 9～32 μ m, and width is 10～50mm, highly is 10～50mm.
As a kind of improvement of the method for winding of square power lithium ion battery of the present invention, the thickness of each lug is 15～25 μ m, and width is 20～40mm, highly is 20～40mm.
As a kind of improvement of the method for winding of square power lithium ion battery of the present invention, described sign lug is provided with cross impression.
As a kind of improvement of the method for winding of square power lithium ion battery of the present invention, described sign lug is provided with the first breach, and being shaped as of described the first breach is square, rhombus or circle.
As a kind of improvement of the method for winding of square power lithium ion battery of the present invention, described sign lug is provided with the second breach.
Beneficial effect of the present invention is: the present invention includes following steps: step 1, the gummed paper of labelling on the sign lug of pole piece coiled strip, the judgement that described label gummed paper starts as up-coiler; The label that the inductor of step 2, up-coiler is responded to described sign lug begins to start, and calculates lug number and position length; The edge of step 3, last lug of calculating by the inductor induction meter of step 2 cuts, and realizes the coiling of battery core.The method is by arranging special identifier at the anode and cathode lug, make up-coiler judge its original position and coiling, calculate lug number fixed length by transducer after starting, responding to last location, lug edge cuts, realize the coiling of battery core, thereby cancellation has the required mould use of punching on pole piece now, and solves the Burr Problem that has die punching to bring.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is a structural representation of the sign lug 4 of Fig. 1.
Fig. 3 is another structural representation of the sign lug 4 of Fig. 1
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention and beneficial effect thereof are elaborated, but embodiments of the present invention are not limited to this.
Shown in Fig. 1 ~ 3, the method for winding of square power lithium ion battery may further comprise the steps: step 1, the gummed paper of labelling on the sign lug 4 of pole piece coiled strip, the judgement that the label gummed paper starts as up-coiler; Step 2, place up-coiler to prepare to begin to reel the pole piece coiled strip,, the label of the inductor induction sign lug 4 of up-coiler begins to start, and calculates lug number and position length; The edge 6 of step 3, last lug 5 of calculating by the inductor induction meter of step 2 cuts, and realizes the coiling of battery core.
Wherein, 3 indicated directions are the direction of coiling charging, in pole piece manufacturing process, as run into the broken belt situation, can carry out manual tape splicing according to sign lug 4.
Preferably, be provided with at least two lugs in the lug coiled strip, the material of each lug is Copper Foil or aluminium foil, and being shaped as of cross section is trapezoidal.
Preferably, the thickness of each lug is 9～32 μ m, and width is 10～50mm, highly is 10～50mm.
The thickness of each lug is 15～25 μ m, and width is 20～40mm, highly is 20～40mm.
Preferably, sign lug 4 is provided with cross impression.
Sign lug 4 is provided with that being shaped as of the first breach 1, the first breach 1 is square, rhombus or circle.
Sign lug 4 is provided with the short 5～15mm of second breach 2, the second breach, 2 relative other normal lugs.
1), save the punching mould therefor and solve the Burr Problem that punching brings with respect to prior art, the present invention has following advantage at least:, reduce inspection process one; 2), cancel punching die, the die cost that can reduce; 3), simultaneously because the cancellation punching, the capacitance loss that breach before brings can be eliminated; 4), in pole piece manufacturing process, tape splicing method is constant again behind the broken belt, the bad product identification method is constant.
The according to the above description announcement of book and instruction, those skilled in the art in the invention can also change and revise above-mentioned execution mode.Therefore, the present invention is not limited to above-mentioned embodiment, and any apparent improvement, replacement or modification that every those skilled in the art have done on basis of the present invention all belong to protection scope of the present invention.In addition, although used some specific terms in this specification, these terms do not consist of any restriction to the present invention just for convenience of description.
Claims (7)
1. the method for winding of square power lithium ion battery is characterized in that, may further comprise the steps:
Step 1, the gummed paper of on the sign lug (4) of pole piece coiled strip, labelling, the judgement that described label gummed paper starts as up-coiler;
Step 2, place up-coiler to prepare to begin to reel the pole piece coiled strip, the label that the inductor of up-coiler is responded to described sign lug (4) begins to start, and calculates lug number and position length;
The edge (6) of step 3, last lug (5) of calculating by the inductor induction meter of step 2 cuts, and realizes the coiling of battery core.
2. the method for winding of square power lithium ion battery according to claim 1, it is characterized in that: be provided with at least two lugs in described lug coiled strip, the material of each lug is Copper Foil or aluminium foil, and being shaped as of cross section is trapezoidal.
3. the method for winding of square power lithium ion battery according to claim 2, it is characterized in that: the thickness of each lug is 9～32 μ m, and width is 10～50mm, highly is 10～50mm.
4. the method for winding of square power lithium ion battery according to claim 3, it is characterized in that: the thickness of each lug is 15～25 μ m, and width is 20～40mm, highly is 20～40mm.
5. the method for winding of square power lithium ion battery according to claim 1, it is characterized in that: described sign lug (4) is provided with cross impression.
6. the method for winding of square power lithium ion battery according to claim 1, it is characterized in that: described sign lug (4) is provided with the first breach (1), and being shaped as of described the first breach (1) is square, rhombus or circle.
7. the method for winding of square power lithium ion battery according to claim 1, it is characterized in that: described sign lug (4) is provided with the second breach (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210350938.7A CN102916226B (en) | 2012-09-20 | 2012-09-20 | The method for winding of square power lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210350938.7A CN102916226B (en) | 2012-09-20 | 2012-09-20 | The method for winding of square power lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102916226A true CN102916226A (en) | 2013-02-06 |
| CN102916226B CN102916226B (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210350938.7A Active CN102916226B (en) | 2012-09-20 | 2012-09-20 | The method for winding of square power lithium ion battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112740455A (en) * | 2018-12-19 | 2021-04-30 | 三洋电机株式会社 | Secondary battery and method for manufacturing same |
| CN115458873A (en) * | 2022-11-11 | 2022-12-09 | 深圳海润新能源科技有限公司 | Energy storage device, electric equipment and winding method |
| WO2024098425A1 (en) * | 2022-11-11 | 2024-05-16 | 深圳海润新能源科技有限公司 | Energy storage apparatus, electric device, and winding method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101015867A (en) * | 2007-03-06 | 2007-08-15 | 杭州万马高能量电池有限公司 | Full-automatic lug cutting machine |
| CN201012870Y (en) * | 2005-12-27 | 2008-01-30 | 深圳市比克电池有限公司 | Cutting machine |
| CN201243053Y (en) * | 2008-05-26 | 2009-05-20 | 比亚迪股份有限公司 | Apparatus for manufacturing battery pole piece |
| CN101557014A (en) * | 2009-03-27 | 2009-10-14 | 深圳市吉阳自动化科技有限公司 | Battery winding system and method thereof |
| CN201601195U (en) * | 2009-04-17 | 2010-10-06 | 深圳市赢合科技有限公司 | Cylindrical lithium battery automatic winding machine |
-
2012
- 2012-09-20 CN CN201210350938.7A patent/CN102916226B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201012870Y (en) * | 2005-12-27 | 2008-01-30 | 深圳市比克电池有限公司 | Cutting machine |
| CN101015867A (en) * | 2007-03-06 | 2007-08-15 | 杭州万马高能量电池有限公司 | Full-automatic lug cutting machine |
| CN201243053Y (en) * | 2008-05-26 | 2009-05-20 | 比亚迪股份有限公司 | Apparatus for manufacturing battery pole piece |
| CN101557014A (en) * | 2009-03-27 | 2009-10-14 | 深圳市吉阳自动化科技有限公司 | Battery winding system and method thereof |
| CN201601195U (en) * | 2009-04-17 | 2010-10-06 | 深圳市赢合科技有限公司 | Cylindrical lithium battery automatic winding machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112740455A (en) * | 2018-12-19 | 2021-04-30 | 三洋电机株式会社 | Secondary battery and method for manufacturing same |
| CN115458873A (en) * | 2022-11-11 | 2022-12-09 | 深圳海润新能源科技有限公司 | Energy storage device, electric equipment and winding method |
| CN115458873B (en) * | 2022-11-11 | 2023-09-26 | 深圳海辰储能控制技术有限公司 | Energy storage device, electric equipment and winding method |
| WO2024098425A1 (en) * | 2022-11-11 | 2024-05-16 | 深圳海润新能源科技有限公司 | Energy storage apparatus, electric device, and winding method |
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| Publication number | Publication date |
|---|---|
| CN102916226B (en) | 2016-06-22 |
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