CN111786026A - Lithium battery side edge shaping process - Google Patents
Lithium battery side edge shaping process Download PDFInfo
- Publication number
- CN111786026A CN111786026A CN202010603677.XA CN202010603677A CN111786026A CN 111786026 A CN111786026 A CN 111786026A CN 202010603677 A CN202010603677 A CN 202010603677A CN 111786026 A CN111786026 A CN 111786026A
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- CN
- China
- Prior art keywords
- hot pressing
- electric core
- battery cell
- side edge
- hot
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling 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
- 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
Abstract
The invention provides a lithium battery side edge shaping process, which comprises the following steps: (1) feeding; (2) positioning the battery core; (3) the side edge of the packaging film of the battery cell is cut off by the edge cutting mechanism; (4) hot pressing the upper end surface and the lower end surface of the side edge of the battery cell by the hot press; (5) the glue dripping mechanism drips glue on the side end face of the battery cell; (6) the edge folding roller turns over the side edge of the battery cell upwards; (7) the hot press carries out hot pressing on the end surface of the battery cell; (8) the cold press is used for cold pressing the end face of the battery cell; (9) performing a fine ironing process on the end faces of the two sides of the battery cell by using a hot press; (10) blanking, the invention has the advantages that: the quality and the precision of the lithium battery shaping are improved, and the lithium battery can smoothly flow to a later process.
Description
Technical Field
The invention relates to the field of soft package battery cell shaping processes, in particular to a lithium battery side edge shaping process.
Background
The soft package battery is a battery which is made by packaging an aluminum plastic film for a lithium battery, has the characteristic of high safety, after the lithium battery is packaged, the lithium battery needs to be shaped, the size of the lithium battery is controlled within a certain range, so that the lithium battery can be smoothly circulated in subsequent processing procedures, and meanwhile, the lithium battery processing precision is also facilitated, the traditional shaping process is that after the lithium battery is packaged, redundant packaging films are cut off, then glue is dripped on the side edge of the lithium battery, the side edge is turned over and adhered to the side surface of the lithium battery, but the precision of the simple shaping step is not high, the adhesion effect is difficult to ensure, the side edge adhesion is easy to cause poor to influence subsequent processing steps, and even the normal use of a user is influenced, therefore, a lithium battery side edge shaping process needs to be researched, and the quality and the precision of the lithium battery shaping can be improved, the lithium battery can be smoothly transferred to a subsequent process.
Disclosure of Invention
The invention aims to provide a lithium battery side edge shaping process to solve the problems mentioned in the background technology.
In order to achieve the above purpose, the invention provides the following technical scheme:
a lithium battery side edge shaping process is characterized by comprising the following steps:
step S1, left side trimming: cutting off the left side edge of the packaging film of the battery cell through a trimming mechanism;
step S2, left side shaping: carry out hot pressing, hot pressing pressure through the upper and lower terminal surface of hot press to electric core left side: 0 to 100kgf, hot pressing temperature: and (3) hot pressing at 30-200 ℃ for: 1-2 s;
step S3, left side edge glue dripping: glue dripping is carried out on the upper end face of the left side edge of the battery cell through a glue dripping mechanism, a glue dripping head moves at a constant speed, and the moving speed is as follows: 40-240 mm/s;
step S4, folding the left side: the left side edge of the battery cell is turned upwards through the edge folding roller, so that the side edge is bonded with the left end face of the battery cell;
step S5, left side hot pressing: carry out hot pressing to the left end face of electric core through the hot press, the glue of stoving electric core side, hot pressing pressure: 0 to 15kgf, hot pressing temperature: and (3) hot pressing at 30-200 ℃ for: the time is more than or equal to 3 s;
step S6, cold pressing of the left side face: the left end face of the battery cell is cold-pressed through a cold press, the glue on the side face of the battery cell is cooled, and the cold-pressing pressure is as follows: 0-15 kgf, cold pressing temperature: room temperature, hot pressing time: the time is more than or equal to 3 s;
step S7, shaping the right side of the battery cell: shaping the right side of the battery cell on a production line for shaping the right side of the battery cell, wherein the steps are the same as the steps from S1 to S6;
step S8, fine ironing on both sides; carrying out hot pressing on the end faces on the two sides of the battery cell through a hot press, wherein the hot pressing pressure is as follows: 0 to 20kgf, hot pressing temperature: and (3) hot pressing at 30-200 ℃ for: 2-8 s.
Preferably: the electric core is transported through the electric core clamp, and the pressure when the electric core clamp clamps the electric core is 0-30 kgf.
Preferably: before step S1, the electric core on the electric core clamp is positioned by the positioning mechanism, the positioning mechanism opens the electric core clamp, and the electric core is pushed to the left side to push pressure: 0 ~ 10kgf makes electric core left side outstanding in electric core anchor clamps left side, and electric core anchor clamps press from both sides tight again electric core after that, clamping pressure: 0 to 30 kgf.
Preferably: in step S2, the hot pressing pressure of the side shaping mechanism was 50kgf, the hot pressing temperature was 100 ℃, and the hot pressing time was 2S.
Preferably: in step S3, the moving speed of the dispensing head is 120mm/S.
Preferably: in step S5, the hot press pressure of the hot press is 10kgf, the hot press temperature is 100 ℃, and the hot press time is 4S.
Preferably: in step S6, the cold pressing pressure of the cold press is 10kgf, the cold pressing temperature is room temperature, and the hot pressing time is 4S.
Preferably: in step S8, the hot pressing pressure of the hot press: 10kgf, hot pressing temperature 100 ℃ and hot pressing time 6 s.
The invention has the beneficial effects that: after cutting off redundant side edges, shaping the residual side edges by using a hot press, enabling a glue dripping process to be capable of uniformly coating glue on the side edges of the lithium battery, and after the side edges are turned over, carrying out hot-pressing and cold-pressing processes on the side surfaces of the lithium battery, enabling the glue to be quickly dried and cooled, improving the bonding effect of the side edges, and finally carrying out a fine-ironing process, so that the size precision of the lithium battery is ensured, the smooth flow of the lithium battery in subsequent processes is facilitated, and the processing precision of the lithium battery in the subsequent processes can be improved.
Detailed Description
The invention is further illustrated by the following examples:
example (b):
a feeding step: the manipulator picks the battery cell from the previous procedure and places the battery cell on a battery cell clamp, the battery cell clamp clamps the battery cell, and the clamping pressure is 15 kgf;
battery core positioning: the battery cell clamp is transported to a positioning mechanism, the positioning mechanism opens the battery cell clamp, the battery cell is pushed to the left side with the pressure of 5kgf, the left side of the battery cell protrudes out of the left side of the battery cell clamp, then the battery cell clamp clamps the battery cell again, and the clamping pressure is 15 kgf;
the cell shaping step includes steps S1 to S8:
step S1, left side trimming: the battery cell clamp is transported to the edge cutting mechanism, the edge cutting mechanism cuts off the left side edge of the packaging film of the battery cell, and after the cutter is cut, the battery cell clamp firstly runs to the left and then is opened, so that cut materials are prevented from falling on the working platform;
step S2, left side shaping: electric core anchor clamps are transported side plastic mechanism department, and the hot press carries out hot pressing, hot pressing pressure to the upper and lower terminal surface of electric core left side limit: 50kgf, hot pressing temperature: 100 ℃, hot pressing time: 2 s;
step S3, left side edge glue dripping: the battery core clamp is transported to the glue dripping mechanism, the glue dripping mechanism carries out glue dripping on the upper end face of the left side of the battery core, the glue dripping head moves at a constant speed, and the moving speed is as follows: 120mm/s, and the glue can be uniformly coated on the side edge of the battery cell at the moving speed;
step S4, folding the left side: the cell fixture is transported to a folding mechanism, and a folding roller folds the left side edge of the cell upwards to enable the side edge to be bonded with the left end face of the cell;
step S5, left side hot pressing: electric core anchor clamps are transported to side hot pressing mechanism department, and the hot press carries out the hot pressing to the left end face of electric core, the glue of stoving electric core side, hot pressing pressure: 10kgf, hot pressing temperature: 100 ℃, hot pressing time: 4s, under the parameter, the glue can be quickly dried without damaging the packaging film;
step S6, cold pressing of the left side face: electric core anchor clamps are transported to side cold press mechanism department, and the cold press colds pressing the left end face of electric core, cools off the glue of electric core side, pressure of colding pressing: 10kgf, cold pressing temperature: room temperature, hot pressing time: 4s, the cold pressing temperature is the room temperature, so that a cold press does not need to be additionally heated or cooled, the operation is convenient, and the room temperature is 10-30 ℃;
the cell clamp is transported to a clamp transfer mechanism, and the clamp transfer mechanism transfers the clamp to a production line on the right side of the shaping cell;
step S7, shaping the right side of the battery cell: the cell fixture is transported to a production line for shaping the right side of the cell, and the step of shaping the right side of the cell is the same as the step S2 to the step S8;
step S8, fine ironing on both sides; after step S10 is completed, the cell fixture is transported to the fine-ironing mechanism of the cell, the manipulator grabs the cell and places the cell in a hot press, and the hot press carries out hot pressing on the end faces of two sides of the cell, namely hot pressing pressure: 10kgf, hot pressing temperature: 100 ℃, hot pressing time: 6 s; meanwhile, the cell clamp is transferred back to the production line on the left side of the shaping cell through another clamp transfer mechanism;
blanking: the unloading manipulator snatchs electric core and places the unloading region from the smart mechanism that scalds of electric core department.
The above description is not intended to limit the technical scope of the present invention, and any modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention are still within the technical scope of the present invention.
Claims (8)
1. A lithium battery side edge shaping process is characterized by comprising the following steps:
step S1, left side trimming: cutting off the left side edge of the packaging film of the battery cell through a trimming mechanism;
step S2, left side shaping: carry out hot pressing, hot pressing pressure through the upper and lower terminal surface of hot press to electric core left side: 0 to 100kgf, hot pressing temperature: and (3) hot pressing at 30-200 ℃ for: 1-2 s;
step S3, left side edge glue dripping: glue dripping is carried out on the upper end face of the left side edge of the battery cell through a glue dripping mechanism, a glue dripping head moves at a constant speed, and the moving speed is as follows: 40-240 mm/s;
step S4, folding the left side: the left side edge of the battery cell is turned upwards through the edge folding roller, so that the side edge is bonded with the left end face of the battery cell;
step S5, left side hot pressing: carry out hot pressing to the left end face of electric core through the hot press, the glue of stoving electric core side, hot pressing pressure: 0 to 15kgf, hot pressing temperature: and (3) hot pressing at 30-200 ℃ for: the time is more than or equal to 3 s;
step S6, cold pressing of the left side face: the left end face of the battery cell is cold-pressed through a cold press, the glue on the side face of the battery cell is cooled, and the cold-pressing pressure is as follows: 0-15 kgf, cold pressing temperature: room temperature, hot pressing time: the time is more than or equal to 3 s;
step S7, shaping the right side of the battery cell: shaping the right side of the battery cell on a production line for shaping the right side of the battery cell, wherein the steps are the same as the steps from S1 to S6;
step S8, fine ironing on both sides; carrying out hot pressing on the end faces on the two sides of the battery cell through a hot press, wherein the hot pressing pressure is as follows: 0 to 20kgf, hot pressing temperature: and (3) hot pressing at 30-200 ℃ for: 2-8 s.
2. The lithium battery side edge shaping process according to claim 1, wherein: the electric core is transported through the electric core clamp, and the pressure when the electric core clamp clamps the electric core is 0-30 kgf.
3. The lithium battery side edge shaping process according to claim 2, wherein: before step S1, the electric core on the electric core clamp is positioned by the positioning mechanism, the positioning mechanism opens the electric core clamp, and the electric core is pushed to the left side to push pressure: 0 ~ 10kgf makes electric core left side outstanding in electric core anchor clamps left side, and electric core anchor clamps press from both sides tight again electric core after that, clamping pressure: 0 to 30 kgf.
4. The lithium battery side edge shaping process according to claim 1, wherein: in step S2, the hot pressing pressure of the side shaping mechanism was 50kgf, the hot pressing temperature was 100 ℃, and the hot pressing time was 2S.
5. The lithium battery side edge shaping process according to claim 1, wherein: in step S3, the moving speed of the dispensing head is 120mm/S.
6. The lithium battery side edge shaping process according to claim 1, wherein: in step S5, the hot press pressure of the hot press is 10kgf, the hot press temperature is 100 ℃, and the hot press time is 4S.
7. The lithium battery side edge shaping process according to claim 1, wherein: in step S6, the cold pressing pressure of the cold press is 10kgf, the cold pressing temperature is room temperature, and the hot pressing time is 4S.
8. The lithium battery side edge shaping process according to claim 1, wherein: in step S8, the hot pressing pressure of the hot press: 10kgf, hot pressing temperature 100 ℃ and hot pressing time 6 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010603677.XA CN111786026A (en) | 2020-06-29 | 2020-06-29 | Lithium battery side edge shaping process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010603677.XA CN111786026A (en) | 2020-06-29 | 2020-06-29 | Lithium battery side edge shaping process |
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| Publication Number | Publication Date |
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| CN111786026A true CN111786026A (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010603677.XA Pending CN111786026A (en) | 2020-06-29 | 2020-06-29 | Lithium battery side edge shaping process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084791A (en) * | 2022-06-23 | 2022-09-20 | 万向一二三股份公司 | Manufacturing method of synthetic tab |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004146183A (en) * | 2002-10-24 | 2004-05-20 | Dainippon Printing Co Ltd | Secondary battery and its manufacturing method |
| CN110212249A (en) * | 2019-05-31 | 2019-09-06 | 广东利元亨智能装备股份有限公司 | Four-in-one molding machine |
-
2020
- 2020-06-29 CN CN202010603677.XA patent/CN111786026A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004146183A (en) * | 2002-10-24 | 2004-05-20 | Dainippon Printing Co Ltd | Secondary battery and its manufacturing method |
| CN110212249A (en) * | 2019-05-31 | 2019-09-06 | 广东利元亨智能装备股份有限公司 | Four-in-one molding machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084791A (en) * | 2022-06-23 | 2022-09-20 | 万向一二三股份公司 | Manufacturing method of synthetic tab |
| CN115084791B (en) * | 2022-06-23 | 2023-11-03 | 万向一二三股份公司 | Method for manufacturing synthetic electrode lug |
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Application publication date: 20201016 |
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| RJ01 | Rejection of invention patent application after publication |