CN108878986B - Arc-shaped lithium ion battery manufacturing device and manufacturing method - Google Patents
Arc-shaped lithium ion battery manufacturing device and manufacturing method Download PDFInfo
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- CN108878986B CN108878986B CN201810774827.6A CN201810774827A CN108878986B CN 108878986 B CN108878986 B CN 108878986B CN 201810774827 A CN201810774827 A CN 201810774827A CN 108878986 B CN108878986 B CN 108878986B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 22
- 230000006835 compression Effects 0.000 claims abstract description 87
- 238000007906 compression Methods 0.000 claims abstract description 87
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 238000003825 pressing Methods 0.000 claims description 8
- 239000012212 insulator Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000003475 lamination Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 101100520231 Caenorhabditis elegans plc-3 gene Proteins 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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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
-
- 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)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a manufacturing device and a manufacturing method of an arc lithium ion battery, wherein the manufacturing device comprises a temperature box capable of adjusting temperature, a PLC and a controller, wherein three pairs of compression rollers, a spherical connecting shaft for controlling each compression roller to rotate for 360 degrees, a connecting shaft for controlling each pair of compression rollers to move up and down, a horizontal rolling shaft for controlling each pair of compression rollers to move horizontally and a scanner arranged in the horizontal moving direction of the compression rollers are arranged in the temperature box; the controller and the PLC respectively control each connecting shaft and each horizontal rolling shaft; the controller is also electrically connected with the scanner; the surface of the compression roller is provided with a stress sensor connected with a controller and a PLC, and the controller and the PLC can control the rotation of the front and the back pairs of compression rollers and can move back and forth along a certain radian to form an arc-shaped battery cell. When the arc-shaped battery is manufactured, the adjustable position of the compression roller is utilized, and various arcs to be manufactured can be manufactured without the problem of being limited by a die.
Description
Technical Field
The invention relates to a manufacturing technology of an arc-shaped lithium ion battery, in particular to an arc-shaped lithium ion battery and a manufacturing device thereof.
Background
The effective space left by the mobile phone with the irregular shape, the curve and the cambered surface for the battery is changed into the irregular shape. The regular rectangular shape of the lithium ion battery cannot effectively utilize space. The mobile phone has more and more functions, so that more and more power consumption is caused, the required battery capacity is correspondingly increased, and the arc lithium ion battery has obvious advantages under the condition of not increasing the thickness of the battery. Similarly, notebook computers, bluetooth headsets, mobile DVDs and other electrical appliances are developing towards moving and portability, and are equipped with liquid crystal displays, and the functions are increasing, and the liquid crystal screens are increasing, which provide some opportunities for arc-shaped lithium ion batteries.
The method for manufacturing the arc-shaped battery in the prior art is that after the battery core is integrally formed, the battery core is directly placed into an arc-shaped die for rolling forming, and the method has great destructiveness on the interior of the battery core and poor forming effect; one method is to use a stamping die to fix the battery cell and punch the battery cell slowly downwards, so that although the forming effect is good, certain damage can still be caused to the interior of the battery cell; in the other method, the temperature is increased in the forming process, so that the forming damage is reduced, and meanwhile, the forming effect is increased, but the problem that gas can be generated in the battery core when the temperature is high is not solved, finally, all the molds can not play a recycling effect, and one set of mold can only be used for manufacturing one required arc-shaped battery.
Therefore, the prior art is in need of further improvement.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an arc-shaped lithium ion battery and a manufacturing device thereof.
In order to achieve the purpose, the specific technical scheme of the invention is as follows: an arc lithium ion battery manufacturing device comprises a temperature box capable of adjusting temperature, a PLC and a controller, wherein three pairs of compression rollers, a spherical connecting shaft for controlling each compression roller to rotate for 360 degrees, a connecting shaft for controlling each pair of compression rollers to move up and down, a horizontal rolling shaft for controlling each pair of compression rollers to move horizontally and a scanner arranged in the horizontal moving direction of the compression rollers are arranged in the temperature box; the controller and the PLC respectively control each connecting shaft and each horizontal rolling shaft; the controller is also electrically connected with the scanner;
the surface of the compression roller is provided with a stress sensor connected with a controller and a PLC (programmable logic controller), and the controller and the PLC can control the rotation of the front and the back pairs of compression rollers and can move back and forth along a certain radian to form an arc-shaped battery.
In one preferable scheme, the surface of the press roller is coated with an anti-conductive insulator, and the insulator is coated and then polished smoothly.
In one preferred scheme, the bottom of the temperature box is provided with an opening and closing door which is opened by the drive of a PLC.
In one preferred scheme, the middle pressing roller is a fixed pressing roller and only plays a fixing role in the preparation of the arc lithium ion battery cell.
The invention also provides a manufacturing method of the arc lithium ion battery, which comprises the following steps:
(1) Placing the battery cell on a lower compression roller of the three pairs of compression rollers, and closing the upper and lower lamination rollers towards the battery cell so as to clamp the battery cell;
(2) The horizontal rolling shaft drives the three pairs of compression rollers and the battery cell to move towards the direction of the scanner under the control of the controller, and the scanner acquires size data of the battery cell and feeds the size data back to the controller;
(3) The controller adjusts the three pairs of compression rollers to be respectively positioned at the head, the middle and the tail of the electric core according to the size data fed back by the scanner;
(4) After the position adjustment of the last step, the controller sends a starting signal to the PLC, when the compression roller receives the starting signal, the front and the rear compression rollers rotate and simultaneously keep a certain radian to go around, the middle compression roller keeps still, and the running tracks of the front and the rear compression rollers are set by a program of the PLC.
In one preferred embodiment, the method for adjusting the positions of the three pairs of pressing rollers at the head, the middle and the tail of the battery cell in the step (3) comprises the following steps:
the controller controls all horizontal rolling shafts to stop moving, then controls the middle pair of compression rollers to move to the required positions, the front and rear rolling shafts and the compression rollers respectively move to the head and the tail of the electric core main body, and all the compression rollers clamp the electric core again after moving to the specified positions.
In one preferable scheme, in the step (4), when the curvature of the section arc surface of the manufactured battery is 0.6-1.2, the front pair of compression rollers and the rear pair of compression rollers firstly form an arc-shaped battery cell with a half curvature, and then form an arc-shaped battery cell with a whole curvature.
When the arc-shaped battery is manufactured, various arcs to be manufactured can be manufactured by utilizing the adjustable position of the compression roller without the problem of constraining a die. Simultaneously the battery is in the environment of high temperature when this experiment preparation battery to electric core is easily out of shape, and electric core is for becoming back electric core simultaneously, and the effect that high temperature banking can be played in the round trip roll-in of compression roller for the performance of battery is better. In addition, the arc-shaped battery is manufactured by the technology because the principle of pressing the battery is different in the process of rotating the compression roller, so that the pressure applied to the surface of the battery cell is uniform, the battery cell with the larger arc shape can be manufactured step by step, the damage to the inside of the battery cell can be reduced to the minimum, the battery cell is matched with high temperature and is easier to deform, the plastic deformation is good, and the battery cell is easier to mold after being cooled.
Drawings
FIG. 1 is a diagram of the initial state of the apparatus of the present invention;
FIG. 2 is a diagram illustrating the operation of the apparatus of the present invention;
FIG. 3 is a cross-sectional view of the press roll of the present invention when manufacturing an arc-shaped cell;
fig. 4 is a schematic diagram of a plurality of arc-shaped battery cells manufactured in the invention;
fig. 5 shows a cell to be processed according to the present invention;
fig. 6 is a packaging diagram of an arc-shaped cell in the invention.
Detailed Description
The invention is further described below with reference to the following figures and specific examples.
Referring to fig. 1 to 5, the invention provides an arc lithium ion battery cell manufacturing device, which comprises a temperature box 11 capable of adjusting temperature, a PLC 3 and a controller 1, wherein three pairs of compression rollers 7, a spherical first coupling shaft 10 for controlling each compression roller to rotate at 360 degrees, a second coupling shaft 8 for controlling each pair of compression rollers to move up and down, a horizontal rolling shaft 2 for controlling each pair of compression rollers to move horizontally, and a scanner 4 arranged in the horizontal moving direction of the compression rollers are arranged in the temperature box 11; the controller 1 and the PLC 3 respectively control the connecting shafts 10 and 8 and the horizontal rolling shafts 2; the controller 1 is also electrically connected with the scanner 4;
the surface of the compression roller 7 is provided with a stress sensor connected with the controller 1 and the PLC 3, and the controller 1 and the PLC 3 can control the rotation of the front and the back pairs of compression rollers 7 and can move back and forth along a certain radian to form an arc-shaped battery cell.
The surface of the compression roller 7 is coated with an anti-conductive insulator, and the insulator is coated and then polished smoothly. The middle press roll 7 is a fixed press roll and only plays a role in fixing in the preparation of the arc lithium ion battery cell.
The bottom of the temperature box 11 is provided with an opening and closing door 5 which is driven to open by the PLC 3.
The invention also provides a manufacturing method of the arc lithium ion battery cell, which comprises the following steps:
(1) Placing the battery cell on a lower compression roller of the three pairs of compression rollers 7, and closing the upper and lower lamination rollers 7 to the battery cell so as to clamp the battery cell;
(2) The horizontal rolling shaft 2 drives the three pairs of compression rollers 7 and the battery cell to move towards the scanner 4 under the control of the controller 1, and the scanner 4 acquires size data of the battery cell and feeds the size data back to the controller 1;
(3) The controller 1 adjusts the three pairs of compression rollers 7 to be respectively positioned at the head, the middle and the tail of the battery cell according to the size data fed back by the scanner 4;
(4) After the position adjustment of the previous step, the controller 1 sends a starting signal to the PLC 3, when the compression roller 7 receives the starting signal, the front and the rear compression rollers (the compression rollers at two sides) keep a certain radian to move around while rotating, the middle compression roller (the middle compression roller) keeps still, and the running tracks of the front and the rear compression rollers are set by a program of the PLC 3.
The method for adjusting the three pairs of compression rollers to be respectively positioned at the head, the middle and the tail of the battery cell in the step (3) comprises the following steps:
the controller 1 controls all the horizontal rolling shafts 2 to stop moving, then controls the middle pair of compression rollers 7 to move to a required position, the front and rear horizontal rolling shafts 2 and the compression rollers 7 respectively move to the head and the tail of the cell main body, and all the compression rollers 7 clamp the cell again after moving to a specified position.
Referring to fig. 4, in the step (4), when the curvature of the cross-section arc surface of the manufactured battery is between 0.6 and 1.2, the original shape of the battery cell is (1), the front and rear pairs of press rolls first make an arc-shaped battery cell (2) with a half curvature, and then make an arc-shaped battery cell (3) with a whole curvature.
Referring to fig. 5, the battery to be processed in the present invention is a soft package battery and a formed battery cell, both sides of the battery are packaged, and the battery includes a sealing region 13, a battery cell 6, and an air bag 9, and an air bag opening of the air bag 9 faces downward.
Referring to fig. 1 and 6, when the battery cell is sealed, the lower mold 12 is placed under the temperature box 11, after the arc-shaped shaping of the battery cell is completed, the lower mold 12 moves under the battery cell along with the moving belt, after the battery cell is cooled on the lower mold 12, the lower mold 12 moves to the upper mold 15, and the upper mold and the lower mold are closed and vacuumized to package the battery cell. The two upper and lower seal heads 14 are arranged on the upper and lower dies 12 and 15, the upper and lower seal heads 14 are common two seal heads, and only need to be placed at a certain angle, so that the packaging is convenient.
The following are illustrative of specific embodiments:
and opening the box door to place the manufactured battery in the middle of the loosened compression roller, closing the box door, and adjusting the temperature in the box to 85 ℃. And closing the box door, opening the controller, controlling the closing of the upper and lower compression rollers by the controller, feeding back a signal to the controller by a pressure sensor on the surface of the compression roller, and stopping the continuous closing of the compression roller by the controller, wherein the electric core is clamped by the compression roller at the moment. The controller controls the horizontal moving shaft (drives all compression rollers and the battery cell) to move towards the scanner, and when the scanner scans the battery cell, a signal can be fed back to the controller, and the controller stops moving the horizontal moving shaft integrally. Meanwhile, the controller controls the middle compression roller 7 to move to a position needing to move to clamp the battery cell, and the compression rollers 7 on the two sides move to the head and the tail of the battery cell respectively to clamp the battery cell. Then the controller sends start signal to PLC, the compression roller rotation of PLC control electricity core both sides is simultaneously with certain radian motion certain time, the radian is the required value that operating personnel oneself set for, several different radians also can only set for a radian, the compression roller radian of both sides also can set up differently, the operation radian of the compression roller during operation of controlling of following two embodiments is the same, after the time arrives, the compression roller of both sides removes the head and the afterbody of electric core and presss from both sides tight electric core respectively. At this time, the PLC controls the second coupling shaft 8 moving up and down to move down, and the opening and closing door 5 is opened to both sides. The mold 12 moves right below the battery core at this time, and along with the downward movement of the second coupling shaft 8, the press roller drives the battery core to reach the lower mold 12, the press roller is loosened, and the battery core is discharged onto the lower mold 12. And the lower die 12 moves towards the upper die 15, the upper die and the lower die are closed, the battery core is packaged in a vacuumizing mode, and the arc-shaped battery is completed. The data for the specific examples are as follows:
1. the length of the battery cell before being made into an arc shape is 120mm, the width is 90mm, the thickness is 6mm, and the capacity is 9Ah. The arc-shaped battery with the radian of 0.3 needs to be manufactured, because the pressing roller with the smaller radian can be directly pressed in place at one time. Table 1 shows the comparison of the performance of the arc cell and the normal cell without arc:
TABLE 1
2. The length of the battery cell before being made into an arc shape is 180mm, the width is 80mm, the thickness is 5.5mm, and the capacity is 12Ah. The arc battery with the radian of 0.9 is manufactured, and the arc battery with the radian of 0.9 is manufactured by the compression roller firstly in order to prevent the battery from being damaged by once pressing the compression roller to the required radian, because the radian is large. Table 2 shows the comparison of the performance of the arc cell and the normal cell without arc:
TABLE 2
In both embodiments, it can be seen that the performance of the battery cell manufactured by the device is basically not different from that of a normal battery cell of the same type.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. The manufacturing method of the arc lithium ion battery is characterized by comprising the following steps of:
(1) Placing the battery cell on a lower compression roller of the three pairs of compression rollers, and closing the upper and lower lamination rollers towards the battery cell so as to clamp the battery cell;
(2) The horizontal rolling shaft drives the three pairs of compression rollers and the battery cell to move towards the direction of the scanner under the control of the controller, and the scanner acquires size data of the battery cell and feeds the size data back to the controller;
(3) The controller adjusts the three pairs of compression rollers to be respectively positioned at the head, the middle and the tail of the electric core according to the size data fed back by the scanner;
(4) After the position adjustment of the last step, the controller sends a starting signal to the PLC, when the compression rollers receive the starting signal, the front and the rear pairs of compression rollers rotate and simultaneously keep a certain radian to and fro to detour, the middle pair of compression rollers keep still, and the running tracks of the front and the rear pairs of compression rollers are set by a program of the PLC;
wherein, arc lithium ion battery manufacturing installation includes: the temperature box is internally provided with three pairs of compression rollers, a spherical connecting shaft for controlling each compression roller to rotate for 360 degrees, a connecting shaft for controlling each pair of compression rollers to move up and down, a horizontal rolling shaft for controlling each pair of compression rollers to move horizontally, and a scanner arranged in the horizontal moving direction of the compression rollers; the controller is also electrically connected with the scanner; the surface of the compression roller is provided with a stress sensor connected with a controller and a PLC (programmable logic controller), and the controller and the PLC control the autorotation of the front and the back pairs of compression rollers and simultaneously move back and forth along a certain radian to form an arc-shaped battery;
the middle press roll is a fixed press roll and only plays a role in fixing in the preparation of the arc lithium ion battery cell.
2. The arc lithium ion battery manufacturing method according to claim 1, wherein the surface of the compression roller is coated with an anti-conductive insulator, and the insulator is coated and then polished smooth.
3. The manufacturing method of arc lithium ion battery of claim 2, wherein the bottom of the temperature box is provided with an open-close door which is opened by PLC drive.
4. The manufacturing method of the arc lithium ion battery according to claim 3, wherein the step (3) of adjusting the positions of the three pairs of compression rollers at the head, the middle and the tail of the battery cell respectively comprises the following steps: the controller controls all horizontal rolling shafts to stop moving, then controls the middle pair of compression rollers to move to a required position, the front and rear rolling shafts and the compression rollers move to the head and the tail of the electric core main body respectively, and all the compression rollers clamp the electric core again after moving to a specified position.
5. The manufacturing method of the arc lithium ion battery according to claim 4, wherein in the step (4), when the curvature of the arc surface of the cross section of the manufactured battery is 0.6-1.2, the front pair of pressing rollers and the rear pair of pressing rollers firstly form the arc battery cell with half curvature, and then form the arc battery cell with the whole curvature.
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| CN201810774827.6A CN108878986B (en) | 2018-07-13 | 2018-07-13 | Arc-shaped lithium ion battery manufacturing device and manufacturing method |
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| CN201810774827.6A CN108878986B (en) | 2018-07-13 | 2018-07-13 | Arc-shaped lithium ion battery manufacturing device and manufacturing method |
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| CN108878986A (en) | 2018-11-23 |
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