CN103078143B - lithium battery and tab cutting device - Google Patents
lithium battery and tab cutting device Download PDFInfo
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- CN103078143B CN103078143B CN201210590291.5A CN201210590291A CN103078143B CN 103078143 B CN103078143 B CN 103078143B CN 201210590291 A CN201210590291 A CN 201210590291A CN 103078143 B CN103078143 B CN 103078143B
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- die
- cutting
- upper bolster
- lithium battery
- lug
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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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Abstract
This application discloses a kind of lithium battery pole ear cutting means and lithium battery, this lithium battery pole ear cutting means comprises actuating unit, upper bolster, upper cutting die, die shoe and lower cutting die.Upper bolster is connected with the clutch end of actuating unit; Upper cutting die is fixedly mounted on upper bolster, upper cutting die has at least one for cutting the arc cut away section of lug, and actuating unit control upper bolster and upper cutting die cut on path one and move around; The corresponding upper bolster of die shoe is fixedly installed; Lower cutting die is fixed on die shoe, is provided with corresponding with arc cut away section to cut hole.Under the driving of actuating unit, on this, cutting die can cut the outward flange of lug, make the outward flange camber after tab cutting, compared with becoming sharp convex with lug outward flange in prior art, the lug of this curved edge has rounder and more smooth transition, in battery core following process and transportation, the lug of this curved edge can be avoided damaging the barrier film in other battery cores.
Description
Technical field
The application relates to lithium battery and manufactures field, the shape particularly relating to lithium battery pole ear and the cutting means cut lug.
Background technology
Lithium battery (Lithiumbattery) refers to the battery containing lithium (comprising lithium metal, lithium alloy and lithium ion, lighium polymer) in electrochemical system.Lithium battery is broadly divided into two classes: lithium metal battery and lithium ion battery.Lithium battery is a kind of rechargeable battery, it mainly rely on lithium ion between a positive electrode and a negative electrode movement carry out work.In charge and discharge process, lithium ion comes and goes between two electrodes and embeds and deintercalation: during rechargable battery, and lithium ion is from positive pole deintercalation, and embed negative pole through electrolyte, negative pole is in rich lithium state; Then contrary during electric discharge.General employing contains the battery of material as electrode of elemental lithium, is the representative of modern high performance battery.
In Production Process of Lithium Battery, please refer to Fig. 1, pole piece and barrier film form battery core 11 after reeling, and on positive plate and negative plate, correspondence arranges angular lug 111 respectively.Because the corner point of lug 111 is convex, in battery core 11 subsequent production link and storage transportation, lug 111 corners of battery core 11 easily punctures the barrier film of other battery cores, thus affects battery safety.
Summary of the invention
The application provides a kind of lithium battery pole ear cutting means and uses the lithium battery of this cutting means processing of cutting.
According to the first aspect of the application, the application provides a kind of lithium battery pole ear cutting means, comprising:
Actuating unit;
Upper bolster, described upper bolster is connected with the clutch end of described actuating unit;
Upper cutting die, it is fixedly mounted on upper bolster, described upper cutting die has at least one for cutting the arc cut away section of lug, and described actuating unit controls upper bolster and upper cutting die cutting on path and moves around;
Die shoe, the corresponding upper bolster of described die shoe is fixedly installed;
And lower cutting die, described lower cutting die is fixed on die shoe, is provided with corresponding with described arc cut away section to cut hole.
In described lithium battery pole ear cutting means one more specifically embodiment, described upper knife mold has two arc cut away section, and described two arc cut away section are arranged on two relative sides of cutting die, for cutting the edge of two lugs simultaneously.
In described lithium battery pole ear cutting means one more specifically embodiment, die holder connecting plate is provided with between the clutch end of described actuating unit and upper bolster, described upper bolster and die holder connecting plate are fixed, and are connected with the clutch end of actuating unit by die holder connecting plate; Described die holder connecting plate arranges the first guide.
In described lithium battery pole ear cutting means one more specifically embodiment, described first guide is two guide pillars, and on described die holder connecting plate, correspondence is provided with two guide holes coordinated with guide pillar.
In described lithium battery pole ear cutting means one more specifically embodiment, between described upper bolster and die shoe, be provided with the second guide.
In described lithium battery pole ear cutting means one more specifically embodiment, described second guide is two guide pillars.
In described lithium battery pole ear cutting means one more specifically embodiment, also comprise holding pad, described holding pad is arranged between upper bolster and die shoe, and is connected with upper bolster by elastic component, and described upper cutting die and the second guide are each passed through holding pad.
In described lithium battery pole ear cutting means one more specifically embodiment, described elastic component is two springs, and described spring one end is connected with upper bolster, and the other end is connected with holding pad.
In described lithium battery pole ear cutting means one more specifically embodiment, described actuating unit is cylinder.
According to the second aspect of the application, the application provides a kind of lithium battery, and described lithium battery comprises and has the outer peripheral lug of arc.
The beneficial effect of the application is:
In the application, the upper knife mold of lithium battery pole ear cutting means has at least one for cutting the arc cut away section of lug, under the driving of actuating unit, on this, cutting die can cut the outward flange of lug, make the outward flange camber after tab cutting, compared with becoming sharp convex with lug outward flange in prior art, the lug of this curved edge has rounder and more smooth transition, in battery core following process and transportation, the lug of this curved edge can be avoided damaging the barrier film in other battery cores, avoids the security performance affecting battery.
Accompanying drawing explanation
Fig. 1 is a kind of core strueture schematic diagram;
Fig. 2 is the structural representation of a kind of embodiment of the application's lithium battery pole ear cutting means;
Fig. 3 is part A enlarged drawing in Fig. 2;
Fig. 4 is that in a kind of embodiment of the application's lithium battery pole ear cutting means, cutting die and lower cutting die coordinate schematic diagram;
Fig. 5 is the lug schematic diagram in a kind of embodiment of the application after cutting means cuts.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
In the embodiment of the present application, lithium battery pole ear cutting means comprises actuating unit, upper bolster, upper cutting die, die shoe and lower cutting die.
This upper bolster is connected with the clutch end of actuating unit.On this, cutting die is fixedly mounted on upper bolster, upper cutting die has at least one for cutting the arc cut away section of lug.Actuating unit controls upper bolster and upper cutting die and cuts on path one and move around, and this cuts path and refers to that cutting die and upper bolster complete and cut once to lug the path that action walks.The corresponding upper bolster of this die shoe is fixedly installed, and such as die shoe is arranged at the relative below of upper bolster.This lower cutting die is fixed on die shoe, is provided with corresponding with arc cut away section to cut hole, and this cuts the profile in hole and upper slitter die topography matches.
Because upper knife mold has at least one for cutting the arc cut away section of lug, under the driving of actuating unit, on this, cutting die can cut the outward flange of lug, make the outward flange camber after tab cutting, compared with becoming sharp convex with lug outward flange in prior art, the lug of this curved edge has rounder and more smooth transition, in battery core following process and transportation, the lug of this curved edge can be avoided damaging the barrier film in other battery cores, avoids the security performance affecting battery.
Below in conjunction with accompanying drawing, the application is specifically described.
Embodiment one:
Please refer to Fig. 2-4, in the present embodiment one, lithium battery pole ear cutting means comprises support 1, cylinder 2, upper bolster 3, die shoe 4, upper cutting die 5, lower cutting die 6, die holder connecting plate 7.
This cylinder 2 is arranged on support 1, and cylinder 2 drives upper bolster 3 and upper cutting die 5 to cut on path one as actuating unit to move around.The clutch end 21 of cylinder 2 is fixedly connected with upper bolster 3, and this is fixedly connected with to comprise and is directly fixedly connected with and is indirectly fixedly connected with.In the present embodiment one, this upper bolster 3 is fixedly connected with the clutch end 21 of cylinder 2 by die holder connecting plate 7, particularly, please refer to Fig. 2, this die holder connecting plate 7 top is fixedly connected with cylinder 2 clutch end 21, and its bottom relative with top is fixedly connected with upper bolster 3.Arranging die holder connecting plate 7 also has an effect to be can also arrange the first guide on die holder connecting plate 7, by the guide effect of the first guide, upper bolster 3 is run on the track preset, ensures the precision cut.Particularly, this first guide can be two guide pillars 81,82, this guide pillar 81,82 is fixedly mounted on support 1, and on die holder connecting plate 7, corresponding two guide pillars 81,82 arrange two guide holes, and two guide pillars 81,82 are each passed through two guide holes and form sliding pair each other.
Upper cutting die 5 is fixedly mounted on upper bolster 3, and upper cutting die 5 has at least one for cutting the arc cut away section of lug, this arc cut away section acts on lug edge when cutting lug, makes the lug after cutting have corresponding arc outward flange.Please refer to Fig. 4, in the present embodiment one, cut away section is two 51,52, two arc cut away section 51,52 are arranged on two relative sides of cutting die 5, for cutting the edge of two lug one end simultaneously, as shown in Figure 5, realize once cutting the outward flange that can act on two lugs 112,113 phase near-end, improve and cut efficiency.
This die shoe 4 is arrange corresponding with upper bolster 3, for fixing lower cutting die 6.Please refer to Fig. 2 and 3, in the present embodiment one, die shoe 4 is fixedly mounted on support 1, and is arranged on the below of upper bolster 3 accordingly.Lower cutting die 6 is fixedly mounted on die shoe 4, is provided with and corresponding cuts hole 61 with arc cut away section 51,52.Feed when cutting die 5 cuts is kept supplying in this effect cutting hole 61, simultaneously also for discharging the waste material as shown in Figure 5 114 cut.The profile of this shape and upper cutting die 5 of cutting hole 61 matches, as shown in Figure 4.
Upper cutting die 5 and upper bolster 3 cut on path one and integrally move around under cylinder 2 drives, in order to improve the accuracy of upper cutting die 5 and upper bolster 3 feed further, second guide can be set between upper bolster 3 and die shoe 4, for leading further to upper bolster 3.Please refer to Fig. 2 and 3, this second guide also can be two guide pillars 91,92.In the present embodiment one, compared with the first guide, this second guide plays auxiliary guide effect, and the first guide plays main guide effect, and therefore guide pillar 81,82 diameter of the first guide is greater than guide pillar 91,92 diameter of the second guide.
In order to when preventing from cutting, lug material moves, cause cutting position inaccurate, can position lug material before upper cutting die 5 cuts.Please refer to Fig. 2 and 3, this lithium battery pole ear cutting means can also comprise holding pad 101, and this holding pad 101 is arranged between upper bolster 3 and die shoe 4, and is connected with upper bolster 3 by elastic component, and upper cutting die 5 and the second guide are each passed through holding pad 101.This elastic component is used for providing power to holding pad 101, and can be two springs 102,103, spring 102,103 one end be connected with upper bolster 3, and the other end is connected with holding pad 101.When cylinder 2 drives upper bolster 3 to press down, spring 102,103 receives compression, and himself elastic force effect holding pad 101 moves downward, and pushes down lug material in advance, after this goes up cutting die 5 and just presses down, cut the redundance on lug.After having cut, upper bolster 3 rises, and now spring 102,103 is stretched, and himself elastic force effect holding pad 101 moves upward, and regains holding pad 101.Simultaneously, because upper in the present embodiment one cutting die 5 is through holding pad 101, holding pad 101 is provided with the through hole corresponding with upper cutting die 5, upper cutting die 5 one cut path moves around time, this holding pad 101 also further for upper cutting die 5 provides guide effect, can improve and cuts precision further.
It is as follows that the present embodiment one cuts process:
Imported by lug material in cutting means described in the present embodiment one upper between cutting die 5 and lower cutting die 6, drive upper bolster 3 and upper cutting die 5 to press down by cylinder 2, now holding pad 101 touches lug material prior to upper cutting die 5, and compresses lug material, realizes the location to lug material.After holding pad 101 compresses lug material, upper cutting die 5 continues to press down, and coordinates with lower cutting die 6, cut on lug for part, make lug edge have arc outward flange.After having cut, cylinder 2 drives on upper bolster 3 and upper cutting die 5 and moves, and prepares to cut action next time.
In this cutting means, arc is the shape of on circumference or curve arbitrary a section, such as circular arc.
In the present embodiment one, because upper cutting die 5 has two for cutting the arc cut away section 51,52 of lug, under the driving of cylinder 2, on this, cutting die 5 can act on the outward flange of two lugs 112,113 simultaneously, outward flange camber after lug 112,113 is cut, compared with becoming sharp convex with lug outward flange in prior art, the lug of this curved edge has rounder and more smooth transition, in battery core following process and transportation, the lug of this curved edge can be avoided damaging the barrier film in other battery cores, avoids the security performance affecting battery.
Embodiment two:
The present embodiment two provides a kind of lithium battery, and this lithium battery comprises the parts such as positive plate, negative plate, barrier film, and positive plate and negative plate are all provided with lug.In the present embodiment two, this lug adopts cutting means described in any embodiment in the application to cut and forms, and after cutting, this lug has arc outward flange, is convenient to battery core following process and transport.
Above content is in conjunction with concrete execution mode further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made.
Claims (8)
1. a lithium battery pole ear cutting means, is characterized in that, comprising:
Actuating unit;
Upper bolster, described upper bolster is connected with the clutch end of described actuating unit;
Upper cutting die, it is fixedly mounted on upper bolster, described upper cutting die has at least one for cutting the arc cut away section of lug, and described actuating unit controls upper bolster and upper cutting die cutting on path and moves around;
Die shoe, the corresponding upper bolster of described die shoe is fixedly installed;
Lower cutting die, described lower cutting die is fixed on die shoe, is provided with corresponding with described arc cut away section to cut hole;
Holding pad, described holding pad is arranged between upper bolster and die shoe, and is connected with upper bolster by elastic component, and described holding pad is provided with the through hole corresponding with upper cutting die, and described upper cutting die is through the through hole of holding pad, and described holding pad forms guiding to upper cutting die.
2. lithium battery pole ear cutting means as claimed in claim 1, it is characterized in that, described upper knife mold has two arc cut away section, and described two arc cut away section are arranged on two relative sides of cutting die, for cutting the edge of two lugs simultaneously.
3. lithium battery pole ear cutting means as claimed in claim 1, it is characterized in that, described elastic component is two springs, and described spring one end is connected with upper bolster, and the other end is connected with holding pad.
4. lithium battery pole ear cutting means as claimed in claim 1, is characterized in that, be provided with the second guide between described upper bolster and die shoe, and described second guide is through holding pad.
5. lithium battery pole ear cutting means as claimed in claim 4, it is characterized in that, described second guide is two guide pillars.
6. lithium battery pole ear cutting means as claimed in claim 1 or 2, it is characterized in that, be provided with die holder connecting plate between the clutch end of described actuating unit and upper bolster, described upper bolster and die holder connecting plate are fixed, and are connected with the clutch end of actuating unit by die holder connecting plate; Described die holder connecting plate arranges the first guide.
7. lithium battery pole ear cutting means as claimed in claim 6, it is characterized in that, described first guide is two guide pillars, and on described die holder connecting plate, correspondence is provided with two guide holes coordinated with guide pillar.
8. lithium battery pole ear cutting means as claimed in claim 1, it is characterized in that, described actuating unit is cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210590291.5A CN103078143B (en) | 2012-12-29 | 2012-12-29 | lithium battery and tab cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210590291.5A CN103078143B (en) | 2012-12-29 | 2012-12-29 | lithium battery and tab cutting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103078143A CN103078143A (en) | 2013-05-01 |
| CN103078143B true CN103078143B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210590291.5A Active CN103078143B (en) | 2012-12-29 | 2012-12-29 | lithium battery and tab cutting device |
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| CN (1) | CN103078143B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105013923A (en) * | 2015-08-05 | 2015-11-04 | 无锡市百事杰金属制品科技有限公司 | Cutting-off chamfering die for lithium-ion battery pole lug |
| CN106001236B (en) * | 2016-07-05 | 2018-07-13 | 上海中兴派能能源科技股份有限公司 | A kind of soft-package battery lug blanking units |
| CN106623584A (en) * | 2016-12-14 | 2017-05-10 | 昆山麦信宁机械科技有限公司 | Punching device |
| CN107116131B (en) * | 2017-05-16 | 2018-09-18 | 广东光博智能科技有限公司 | A kind of lug perforating press |
| CN106984694A (en) * | 2017-05-25 | 2017-07-28 | 东莞市京品精密模具有限公司 | A kind of pole piece punching mold |
| CN106984705A (en) * | 2017-05-27 | 2017-07-28 | 天津中聚新能源科技有限公司 | Lithium ion cell polar ear punching cuts angle shear |
| CN107717464B (en) * | 2017-08-28 | 2019-03-29 | 东莞致宏精密模具有限公司 | A kind of device for lithium battery pole ear shearing |
| CN107717463B (en) * | 2017-08-28 | 2019-04-09 | 东莞市言顶新能源有限公司 | A kind of lithium battery cuts electrode lug device |
| CN110948784B (en) * | 2019-12-24 | 2021-02-09 | 常熟理工学院 | Injection molding equipment with material insert |
| CN111760962B (en) * | 2020-06-28 | 2024-05-03 | 惠州亿纬锂能股份有限公司 | Cutting die, method for cutting metal lithium pole piece by using cutting die and battery |
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| CN2852406Y (en) * | 2005-10-26 | 2006-12-27 | 深圳市比克电池有限公司 | Pole piece assembly of lithium ion battery and battery |
| CN101091999A (en) * | 2007-07-18 | 2007-12-26 | 张家港市金帆电源有限公司 | Chamfering device |
| CN101774041A (en) * | 2010-02-08 | 2010-07-14 | 深圳市赢合科技有限公司 | Tab cutting device |
| CN102544590A (en) * | 2011-12-29 | 2012-07-04 | 东莞新能德科技有限公司 | Integrated device for testing lithium ion battery and shaping and cutting battery lug |
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2012
- 2012-12-29 CN CN201210590291.5A patent/CN103078143B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852406Y (en) * | 2005-10-26 | 2006-12-27 | 深圳市比克电池有限公司 | Pole piece assembly of lithium ion battery and battery |
| CN101091999A (en) * | 2007-07-18 | 2007-12-26 | 张家港市金帆电源有限公司 | Chamfering device |
| CN101774041A (en) * | 2010-02-08 | 2010-07-14 | 深圳市赢合科技有限公司 | Tab cutting device |
| CN102544590A (en) * | 2011-12-29 | 2012-07-04 | 东莞新能德科技有限公司 | Integrated device for testing lithium ion battery and shaping and cutting battery lug |
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| Publication number | Publication date |
|---|---|
| CN103078143A (en) | 2013-05-01 |
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Address after: 518000 Guangdong city of Shenzhen province Baoan District Fuyong Street South Huaide Chui Huaide Industrial Park District twenty-ninth Building 1 floor, 2 floor and 6 floor Patentee after: SHENZHEN GEESUN AUTOMATION TECHNOLOGY CO., LTD. Address before: 5, building 8, 467 Industrial Zone, 107 Xixiang section, National Road, Baoan, Xixiang, Shenzhen, Guangdong, Patentee before: Shenzhen Geesun Automation Technology Co., Ltd. |
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Denomination of invention: Lithium battery and pole lug cutting device Effective date of registration: 20161020 Granted publication date: 20151125 Pledgee: Bank of Beijing Limited by Share Ltd Shenzhen branch Pledgor: SHENZHEN GEESUN AUTOMATION TECHNOLOGY CO., LTD. Registration number: 2016990000887 |
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Address after: 518126 Guangdong city of Shenzhen province Baoan District Fuyong Street South Huaide Chui Huaide Industrial Park District twenty-ninth Building 1 floor, 2 floor and 6 floor Patentee after: Shenzhen Jiyang Intelligent Technology Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Baoan District Fuyong Street South Huaide Chui Huaide Industrial Park District twenty-ninth Building 1 floor, 2 floor and 6 floor Patentee before: SHENZHEN GEESUN AUTOMATION TECHNOLOGY CO., LTD. |