CN101350426B - Machine for winding core of lithium ion battery - Google Patents
Machine for winding core of lithium ion battery Download PDFInfo
- Publication number
- CN101350426B CN101350426B CN2007100759799A CN200710075979A CN101350426B CN 101350426 B CN101350426 B CN 101350426B CN 2007100759799 A CN2007100759799 A CN 2007100759799A CN 200710075979 A CN200710075979 A CN 200710075979A CN 101350426 B CN101350426 B CN 101350426B
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- barrier film
- coiling
- cutting knife
- ion battery
- lithium ion
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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
Abstract
The invention relates to a Li-ion battery coiling core up-coiler, comprising two pole-piece feeding mechanisms (33, 34), two diaphragm feeding mechanisms (35, 36), a coiling switchover center (80) and a diaphragm cutting knife (60) and as well as two press blocks (30, 31). The coiling switchover center (80) comprises a coiling motor (81), two coiling pins (40, 41), a coiling switchover body (82) and a switchover drive mechanism (83); the first diaphragm feeding mechanism (35) is arranged at the upper end of the up-coiler, and two pole-piece feeding mechanisms (35, 36) are arranged along the first diaphragm (10) on the left side and the right side of the coiling switchover center (80); the two coiling pins (40, 41) are vertically arranged in parallel from left to right before the pins are put through; the diaphragm cutting knife (60) is driven by the drive mechanism to move horizontally; the two press blocks (30, 31) are arranged on the right and left side by side, and the two press blocks are driven by the respective drive mechanisms to make horizontal movement. When coiling a battery coiling core, cross contamination of the anode and cathode can be avoided effectively, and the quality and service life of the battery can be improved.
Description
Technical field the present invention relates to make the equipment of secondary cell, particularly relates to the up-coiler of coiling lithium ion battery coil core.
The volume core quality of background technology lithium ion battery directly influences fail safe, consistency and the useful life of lithium ion battery, thereby lithium ionic cell winding machine is guaranteeing to play important effect aspect the battery quality.The battery roll core up-coiler comprises:
Manual coiling machine, half-automatic winder and automatic winding-machine.The winding process of automatic winding-machine as above barrier film, superior pole piece and subsides termination adhesive tape is continuous rolling material loading, this device efficiency height, but cost is also high, and also very high to the requirement of pole piece.In order to save cost, domestic lithium ion battery manufacturer generally adopts manual coiling machine or half-automatic winder.The manual coiling machine or the half-automatic winder of prior art, sending into of two electrode slices by artificial manual operations, the winding process of battery roll core as shown in Figure 1, they exist common weak point to be: because two pole piece feed mechanisms and two barrier film feed mechanisms all are positioned at the same side of up-coiler, the workman is just sending into, during negative electrode plate, two pole piece feed mechanisms are positioned at the same side of its health, he can just go to be affectedly bashful with the same hand inevitably, negative electrode plate, cause battery just easily like this, bear the problem of cross-infection, thereby influence the quality and the useful life of lithium battery.Among this Fig. 1,100 are meant barrier film, and 2,3 refer to two volume pins respectively, 4,5 do not make a comment or criticism, negative electrode plate.
The summary of the invention the technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and proposes a kind of machine for winding core of lithium ion battery, adopt machine for winding core of lithium ion battery of the present invention when the coiling battery roll core, can effectively avoid the problem of lithium battery positive and negative electrode cross-infection, thereby improve the quality and the useful life of lithium battery.
The present invention solve the technical problem can be by realizing by the following technical solutions:
Design, use a kind of machine for winding core of lithium ion battery, comprise two pole piece feed mechanisms, two barrier film feed mechanisms, coiling inversion mechanism center and barrier film cutting knife, and be used to clamp two briquettings of two barrier films threading a needle before and behind the coiling; Described barrier film cutting knife and two briquettings are by separately drive mechanism; Described coiling inversion mechanism center comprises coiling motor, two volume pins and coiling inversion mechanism body and transposition driving mechanism; The first barrier film feed mechanism in the described two barrier film feed mechanisms is positioned at the upper end of up-coiler, and it puts down second barrier film from top to bottom; Described two pole piece feed mechanisms lay respectively at the left and right sides at described coiling inversion mechanism center, make positive and negative plate send into coiling inversion mechanism center respectively from the left and right sides of second barrier film; Described two volume pins before threading a needle, be vertical about state side by side; The driving mechanism of described barrier film cutting knife drives its horizontal cross; Relatively, their driving mechanisms separately also drive their horizontal cross about described two briquetting levels.
As a further improvement on the present invention, described transposition driving mechanism comprises that driving two rolls up vertical driving mechanism and the elastic vertical driving mechanism of the described two volume pins of drive that pins move up and down.
Further improve in addition as of the present invention, machine for winding core of lithium ion battery of the present invention is behind what a battery roll core of volume, cut off before the barrier film, can adopt ultrasonic bonding or blanching mode to bond together as next starting point of rolling up two barrier films of core, can make the volume pin penetrate metacneme so just can be directly stressed, just can reel after inserting electrode slice again, therefore, save the two-layer at least barrier film that before inserting first electrode slice, has been wound in the prior art on the pin; The improved measure of concrete structure is any one of following dual mode.One, described barrier film cutting knife is connected with heater, and this heater is given the heating of barrier film cutting knife, and the temperature of control barrier film cutting knife promptly takes the blanching mode that two barrier films are bonded together between 170 ℃ to 220 ℃.Two, any of described upper and lower two briquettings is designed to ultrasonic bonding head; Promptly adopt the ultrasonic bonding mode that two barrier films are bonded together.
When adopting the blanching mode that two barrier films are bonded together, planform to described barrier film cutting knife has certain requirement, so that reach the bonding again effect of good cut-out: the span of the head top surface width b of barrier film cutting knife is 0.2～2.0mm, the angle that the head rake is become with horizontal plane is that the span of top rake ε is 0～30 °, and the angle that the head back bevel is become with horizontal plane is that the span of back rake angle δ is 10～60 °.
In the machine for winding core of lithium ion battery of the present invention, described each driving mechanism is the air pressure driving mechanism.
Compare with prior art, the technique effect of machine for winding core of lithium ion battery of the present invention is: 1. liang pole piece feed mechanism lays respectively at the left and right sides of the described first barrier film feed mechanism, during coiling, described two pole piece feed mechanisms promptly are in the left and right sides of first barrier film, the operator is when sending into the positive and negative electrode sheet by hand, naturally left hand takes the electrode slice on the left side to send into, the right hand takes the electrode slice on the right to send into, there is no fear of right-hand man's intersection takes electrode slice and the problem that proficiency is touched two kinds of electrode slices simultaneously occurs, thereby prevented the problem of lithium battery both positive and negative polarity cross-infection effectively, the quality and the useful life of having improved lithium battery; 2. coiling inversion mechanism center is adopted to the drawn needle position from the position of threading a needle and moved up and down and elastic mode, only needs a cover volume pin, makes up-coiler simple in structure, and is with low cost; 3. behind what a battery roll core of volume, cut off before the barrier film, adopt ultrasonic bonding or blanching mode to bond together as next starting point of rolling up two barrier films of core, can make the volume pin penetrate metacneme so just can be directly stressed, just can reel after inserting electrode slice again, therefore, saved the two-layer at least barrier film that before inserting first electrode slice, has been wound in the prior art on the pin; In the raw material of lithium battery, barrier film is the material of comparison costliness, according to present calculation of price, adopts method for winding of the present invention, and every lithium battery can reduce several costs of sharing money at least, and the lithium battery volume is big more, and it is also many more to save cost.
Description of drawings
Fig. 1 is the process schematic diagram of prior art machine for winding core of lithium ion battery coiling battery roll core, comprises Figure 1A to Fig. 1 C;
Fig. 2 is the process schematic diagram of lithium battery coiling core winder coiling battery roll core of the present invention, comprises Fig. 2 A to Fig. 2 C;
Fig. 3 is that the integrally-built master of lithium battery coiling core winder of the present invention looks schematic diagram;
Fig. 4 is that schematic diagram is looked on the left side at described coiling inversion mechanism center;
Fig. 5 is the work schematic diagram of up-coiler of the present invention when threading a needle;
Fig. 6 is the work schematic diagram of up-coiler of the present invention when importing first pole piece;
Fig. 7 is the work schematic diagram of up-coiler of the present invention when importing second pole piece;
Fig. 8 is the work schematic diagram of up-coiler of the present invention when the conversion station;
Fig. 9 is the cross section enlarged diagram of the barrier film cutting knife 60 in the described method for winding.
Embodiment is described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.
Machine for winding core of lithium ion battery of the present invention, as shown in Figure 3, comprise two pole piece feed mechanisms 33,34, two barrier film feed mechanisms 35,36, coiling inversion mechanism center 80 and barrier film cutting knife 60, and before threading a needle and be used to clamp two briquettings 30,31 of two barrier films after reeling; Described barrier film cutting knife 60 and two briquettings 30,31 are by separately drive mechanism; Described coiling inversion mechanism center 80 comprises coiling motor 81, two volume pins 40,41 and coiling inversion mechanism body 82 and transposition driving mechanism 83 (in conjunction with reference to Fig. 4); The first barrier film feed mechanism 35 in the described two barrier film feed mechanisms is positioned at the upper end of up-coiler, and it puts down second barrier film 10 from top to bottom; Described two pole piece feed mechanisms 33,34 lay respectively at the left and right sides at described coiling inversion mechanism center 80, make positive and negative plate send into coiling inversion mechanism center 80 respectively from the left and right sides of second barrier film 10; Described two volume pins 40,41 before threading a needle, be vertical about state side by side; The driving mechanism 61 of described barrier film cutting knife 60 drives its horizontal cross; Relatively, their driving mechanisms 301,311 separately also drive their horizontal cross about described two briquettings, 30,31 levels.
Among the present invention, as shown in Figure 4, described transposition driving mechanism 83 comprises and drives the vertical driving mechanism 831 that two volume pins 40,41 move up and down and drive the elastic vertical driving mechanism 832 of described two volume pins 40,41.Described two volume pins 40,41 are ordered about upset by coiling motor 81 by gear 85 transmissions.The direction of arrow A indication is to move up among the figure, and the direction of arrow B indication is indentation backward.
Among the present invention, described each driving mechanism is the air pressure driving mechanism.Can certainly adopt other type of drive, for example hydraulic-driven.These all belong to prior art, repeat no more herein.
Machine for winding core of lithium ion battery of the present invention is behind what a battery roll core of volume, cut off before the barrier film, can adopt ultrasonic bonding or blanching mode to bond together as next starting point of rolling up two barrier films of core, can make the volume pin penetrate metacneme so just can be directly stressed, just can reel after inserting electrode slice again, therefore, saved the two-layer at least barrier film that before inserting first electrode slice, has been wound in the prior art on the pin; The improved measure of concrete structure is any one of following dual mode.
One, described barrier film cutting knife 60 is connected with heater, and this heater gives the barrier film cutting knife 60 heating, and the temperature of control barrier film cutting knife 60 is between 170 ℃ to 220 ℃.When adopting this kind mode, the planform of described barrier film cutting knife 60 has certain requirement: as shown in Figure 9, the span of the head top surface width b of barrier film cutting knife 60 is 0.2～2.0mm, the angle that the head rake is become with horizontal plane is that the span of top rake ε is 0～30 °, and the angle that the head back bevel is become with horizontal plane is that the span of back rake angle δ is 10～60 °
Two, any of described two briquettings 30,31 is designed to ultrasonic bonding head.
The concrete enforcement of ultrasonic bonding and blanching all belongs to prior art, just repeats no more herein.
Extremely shown in Figure 8 in conjunction with Fig. 2, Fig. 5 more below, describe the course of work of using machine for winding core of lithium ion battery coiling lithium battery coiling core of the present invention in detail, comprise the steps: substantially
A. first barrier film 10 and second barrier film 11 are unreeled (in conjunction with Fig. 7) simultaneously by separately unreeling structure 35,36 respectively,
Clamped between left briquetting 30 that the source of two barrier films is bonded together send into up-coiler and the right briquetting 31, at this moment, first barrier film 10 and second barrier film 11 intersect the α that has angle in the place, source, as shown in Figure 5;
In this step, two barrier films are bonded together can adopt dual mode: the one, adopt the ultrasonic bonding mode, any that is about in described left briquetting 30 and the right briquetting 31 made ultrasonic bonding head.The 2nd, adopt the blanching mode, specifically be, heat described barrier film cutting knife 60, its temperature is enough to described two barrier film blanchings together, the general resistance heating that adopts when adopting the blanching mode, the temperature of barrier film cutting knife 60 are controlled at 170 degree Celsius between 250 degree.The concrete enforcement of ultrasonic bonding and blanching all belongs to prior art, just repeats no more herein;
As shown in Figure 6, when the gap of two volume pins 40,41 is in plumbness, driving left and right two volume pins 40,41 stretches out described barrier film 10 clampings, left side volume pin 41 is through between two barrier films, and right volume pin is positioned at the right of barrier film 11, makes described left briquetting 30 and right briquetting 31 relative separation again and unclamps described two sources that barrier film bonds together;
B. as shown in Figure 6 and Figure 7, from 80 left sides, coiling inversion mechanism center with left hand first electrode slice 50 is inserted between the described left side volume pin 40 and second barrier film 11 along the first pole piece feeding mechanism 33, drive left and right two volume pins 40,41 and overturn to the right and make volume pin and described first barrier film 10 form an angle β, second electrode slice 51 is inserted into along the second pole piece feeding mechanism 34 with the right hand from 80 right sides, coiling inversion mechanism center then and rolls up between pin and first barrier film 10 (combining B) referring to Fig. 2;
C. referring to Fig. 7, drive the upset and two barrier films and two electrode slices are wound on become volume core blank (as shown in Fig. 2 C) on the two volume pins, drive a left side again, drive the downside that volume core blanks move to left briquetting 30 and right briquetting 31 vertically downward continuously of left and right two volume pins 40,41 by two volume pins 40,41;
D. drive described left briquetting 30 and clamp ensuing first barrier film 10 and second barrier film 11 with right briquetting 31 relative drawing close, and make two barrier films in bonded together by the folder position (bonding way herein with steps A in identical), starting barrier film cutting knife 60 cuts off two barrier films, the volume core blank of having spooled is through compressing, wrap up into lithium battery coiling core, drive left and right two the volume pins 40,41 backward indentation and be drawn to the volume core outside, the volume core be admitted to recovering hopper again;
E. cut two barrier films are bonded in together at the cut-off part front end among the step D, become the coiling source of next volume core, described left and right two volume pins 40,41 move to initial position more vertically upward and stretch out described article one barrier film 10 is clamped (getting back to shown in Figure 5), get back to step B, and so forth.
Claims (6)
1. machine for winding core of lithium ion battery, comprise two pole piece feed mechanisms (33,34), two barrier film feed mechanisms (35,36), coiling inversion mechanism center (80) and barrier film cutting knife (60), and before threading a needle and be used to clamp two briquettings (30,31) of two barrier films after reeling; Described barrier film cutting knife (60) and two briquettings (30,31) are by separately drive mechanism; Described coiling inversion mechanism center (80) comprises coiling motor (81), two volume pins (40,41) and coiling inversion mechanism body (82) and transposition driving mechanism (83); It is characterized in that: the first barrier film feed mechanism (35) in the described two barrier film feed mechanisms is positioned at the upper end of up-coiler, and it puts down first barrier film (10) from top to bottom; Described two pole piece feed mechanisms (33,34) lay respectively at the left and right sides at coiling inversion mechanism center (80), make positive and negative plate send into coiling inversion mechanism center from the left and right sides of first barrier film (10) respectively; The second barrier film feed mechanism (36) in the described two barrier film feed mechanisms is positioned at the avris of up-coiler, and the first pole piece feeding mechanism (33) in the described two pole piece feed mechanisms (33,34) is between first barrier film (10) and second barrier film (11); Described two volume pins (40,41) before threading a needle, be vertical about state side by side; The driving mechanism of described barrier film cutting knife (60) drives its horizontal cross; Relatively, their driving mechanisms separately also drive their horizontal cross about described two briquettings (30,31) level; Described machine for winding core of lithium ion battery cuts off before the barrier film behind what a battery roll core of volume, can adopt ultrasonic bonding or blanching mode to bond together as next starting point of rolling up two barrier films of core.
2. machine for winding core of lithium ion battery as claimed in claim 1 is characterized in that: described transposition driving mechanism comprises that driving two rolls up vertical driving mechanism and the elastic vertical driving mechanism of the described two volume pins (40,41) of drive that pins (40,41) move up and down.
3. machine for winding core of lithium ion battery as claimed in claim 1, it is characterized in that: will bonding together as next starting point of rolling up two barrier films of core, what adopt is the blanching mode, specifically: described barrier film cutting knife (60) is connected with heater, this heater is given barrier film cutting knife (60) heating, and the temperature of control barrier film cutting knife (60) is between 170 ℃ to 220 ℃.
4. machine for winding core of lithium ion battery as claimed in claim 3, it is characterized in that: the span of the head top surface width b of described barrier film cutting knife (60) is 0.2～2.0mm, the angle that the head rake is become with horizontal plane is that the span of top rake ε is 0～30 °, and the angle that the head back bevel is become with horizontal plane is that the span of back rake angle δ is 10～60 °.
5. machine for winding core of lithium ion battery as claimed in claim 1, it is characterized in that: will bonding together as next starting point of rolling up two barrier films of core, what adopt is the ultrasonic bonding mode, and specifically: any of described two briquettings (30,31) is designed to ultrasonic bonding head.
6. machine for winding core of lithium ion battery as claimed in claim 1 is characterized in that: described each driving mechanism is the air pressure driving mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100759799A CN101350426B (en) | 2007-07-16 | 2007-07-16 | Machine for winding core of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100759799A CN101350426B (en) | 2007-07-16 | 2007-07-16 | Machine for winding core of lithium ion battery |
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| Publication Number | Publication Date |
|---|---|
| CN101350426A CN101350426A (en) | 2009-01-21 |
| CN101350426B true CN101350426B (en) | 2010-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100759799A Expired - Fee Related CN101350426B (en) | 2007-07-16 | 2007-07-16 | Machine for winding core of lithium ion battery |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326071B (en) * | 2013-06-21 | 2015-05-06 | 深圳市赢合科技股份有限公司 | Battery winding needle structure |
| CN106058144B (en) * | 2016-07-06 | 2018-09-07 | 深圳市赢合科技股份有限公司 | A kind of shifting station lazy-tongs of threading a needle of pole piece process equipment |
| CN112284284B (en) * | 2019-07-24 | 2022-10-28 | 天臣新能源（渭南）有限公司 | Core ovality detection and optimization |
| CN113394466B (en) * | 2021-06-10 | 2023-04-21 | 深圳吉阳智能科技有限公司 | Diaphragm non-deceleration film cutting and winding mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524314A (en) * | 2001-07-04 | 2004-08-25 | 东丽工程株式会社 | Secondary battery, manufacturing method for secondary battery, and manufacturing apparatus for secondary battery |
| CN1874045A (en) * | 2005-06-01 | 2006-12-06 | 深圳市创明电池技术有限公司 | Semiautomatic device for winding coil core of batteries |
-
2007
- 2007-07-16 CN CN2007100759799A patent/CN101350426B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524314A (en) * | 2001-07-04 | 2004-08-25 | 东丽工程株式会社 | Secondary battery, manufacturing method for secondary battery, and manufacturing apparatus for secondary battery |
| CN1874045A (en) * | 2005-06-01 | 2006-12-06 | 深圳市创明电池技术有限公司 | Semiautomatic device for winding coil core of batteries |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-120822A 1997.05.06 |
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Owner name: SUZHOU GEESUN AUTOMATION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHENZHEN GEESUN AUTOMATION TECHNOLOGY CO., LTD. Effective date: 20110401 |
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Effective date of registration: 20110401 Address after: 215316 Jiangsu Province, Yushan town of Kunshan City Ding Jing Road No. 99 -2 Patentee after: Suzhou Jiyang Automation Technology Co., Ltd. Address before: Shenzhen City, Guangdong province Baoan District 518101 District 23 venture joint industrial village two 5 floor Patentee before: Shenzhen Geesun Automation Technology Co., Ltd. |
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