CN103078143A - Lithium battery and pole lug cutting device - Google Patents
Lithium battery and pole lug cutting device Download PDFInfo
- Publication number
- CN103078143A CN103078143A CN2012105902915A CN201210590291A CN103078143A CN 103078143 A CN103078143 A CN 103078143A CN 2012105902915 A CN2012105902915 A CN 2012105902915A CN 201210590291 A CN201210590291 A CN 201210590291A CN 103078143 A CN103078143 A CN 103078143A
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- cutting
- die
- lithium battery
- upper bolster
- guide
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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
The application discloses a lithium battery pole lug cutting device and a lithium battery. The lithium battery pole lug cutting device includes a power mechanism, an upper die base, an upper cutting die, a lower die base and a lower cutting die, wherein the upper die base is connected with the power output end of the power mechanism; the upper cutting die is fixedly mounted on the upper die base, and is provided with at least one arc-shaped cutting part for cutting the pole lug; the power mechanism controls the upper die seat and the upper cutting die to move back and forth in a cutting path; the lower die base is fixedly arranged corresponding to the upper die base; and the lower cutting die is fixed on the lower die base, and is provided with a cutting hole corresponding to the arc-shaped cutting part. Under the driving of the power mechanism, the upper cutting die can cut the outer edge of the pole lug so as to enable the outer edge of the pole lug to be arc-shaped; and compared with the outer edge of the pole lug being cuspidal and convex in the prior art, the pole lug with arc-shaped edge has more smooth transition and can avoid damage to membranes on other battery cells in the subsequent processes of processing and transportation of a battery cell.
Description
Technical field
The application relates to lithium battery and makes the field, relates in particular to the shape of lithium battery pole ear and the cutting means that lug is cut.
Background technology
Lithium battery (Lithium battery) refers to contain in the electrochemical system lithium battery of (comprising lithium metal, lithium alloy and lithium ion, lighium polymer).Lithium battery is broadly divided into two classes: lithium metal battery and lithium ion battery.Lithium battery is a kind of rechargeable battery, and it mainly relies on lithium ion to move work between positive pole and negative pole.In charge and discharge process, lithium ion comes and goes embedding and takes off embedding between two electrodes: during rechargable battery, lithium ion takes off embedding from positive pole, embeds negative pole through electrolyte, and negative pole is in rich lithium state; Then opposite during discharge.The general employing contained the material of elemental lithium as the battery of electrode, is the representative of modern high performance battery.
In the Production Process of Lithium Battery, please refer to Fig. 1, pole piece and barrier film form battery core 11 after reeling, and correspondence arranges angular lug 111 respectively on positive plate and negative plate.Because the corner point of lug 111 is protruding, in battery core 11 subsequent production links and storage transportation, the lug 111 wedge angle sections of battery core 11 easily puncture the barrier film of other battery cores, thereby affect battery safety.
Summary of the invention
The lithium battery that the application provides a kind of lithium battery pole ear cutting means and uses this cutting means processing of cutting.
According to the application's first aspect, 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 the upper bolster, has at least one arc that is used for cutting lug on the described upper cutting die and cuts section, and described actuating unit control upper bolster and upper cutting die move around cutting the path;
Die shoe, the corresponding upper bolster of described die shoe is fixedly installed;
And lower cutting die, described lower cutting die is fixed on the die shoe, be provided with on it with described arc cut section corresponding cut the hole.
In a kind of more specifically embodiment of described lithium battery pole ear cutting means, described upper knife mold has two arcs to cut section, and described two arc sections of cutting are arranged on two relative sides of cutting die, is used for cutting simultaneously the edge of two lugs.
In a kind of more specifically embodiment of described lithium battery pole ear cutting means, be provided with the die holder connecting plate between the clutch end of described actuating unit and the upper bolster, described upper bolster and die holder connecting plate are fixed, and are connected with the clutch end of actuating unit by the die holder connecting plate; On the described die holder connecting plate the first guide is set.
In a kind of more specifically embodiment of described lithium battery pole ear cutting means, described the first guide is two guide pillars, and correspondence is provided with two guide holes that cooperate with guide pillar on the described die holder connecting plate.
In a kind of more specifically embodiment of described lithium battery pole ear cutting means, be provided with the second guide between described upper bolster and the die shoe.
In a kind of more specifically embodiment of described lithium battery pole ear cutting means, described the second guide is two guide pillars.
In a kind of more specifically embodiment of described lithium battery pole ear cutting means, also comprise holding pad, described holding pad is arranged between upper bolster and the die shoe, and is connected with upper bolster by elastic component, and described upper cutting die and the second guide pass respectively holding pad.
In a kind of more specifically embodiment of described lithium battery pole ear cutting means, 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 a kind of more specifically embodiment of described lithium battery pole ear cutting means, described actuating unit is cylinder.
According to the application's second aspect, the application provides a kind of lithium battery, and described lithium battery comprises having the outer peripheral lug of arc.
The application's beneficial effect is:
The arc that the upper knife mold of lithium battery pole ear cutting means has at least one to be used to cut lug among the application cuts section, under the driving of actuating unit, should can the outward flange of lug be cut by upper cutting die, so that the outward flange camber behind the tab cutting, become sharp convex to compare with lug outward flange in the 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 the barrier film on other battery cores is damaged, and avoids affecting the security performance of battery.
Description of drawings
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 A part enlarged drawing among Fig. 2;
Fig. 4 is cutting die and lower cutting die cooperation schematic diagram on a kind of embodiment of the application's lithium battery pole ear cutting means;
Fig. 5 is the lug schematic diagram after cutting means cuts among a kind of embodiment of the application.
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, the 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.Should be fixedly mounted on the upper bolster by upper cutting die, have at least one on the upper cutting die and cut section for the arc that cuts lug.Actuating unit control upper bolster and upper cutting die cut the path one and move around, and this cuts the path and refers to that cutting die and upper bolster finish once the path that action is walked that cuts to lug.The corresponding upper bolster of this die shoe is fixedly installed, and is arranged at the relative below of upper bolster such as die shoe.This time cutting die is fixed on the die shoe, be provided with on it with arc cut section corresponding cut the hole, this profile and upper slitter die topography that cuts the hole is complementary.
Because the arc that upper knife mold has at least one to be used to cut lug cuts section, under the driving of actuating unit, should can the outward flange of lug be cut by upper cutting die, so that the outward flange camber behind the tab cutting, become sharp convex to compare with lug outward flange in the 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 the barrier film on other battery cores is damaged, and avoids affecting the security performance of 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, the 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 installed on the support 1, and cylinder 2 drives upper bolster 3 and upper cutting die 5 as actuating unit and cuts the path one and move around.The clutch end 21 of cylinder 2 is fixedly connected with upper bolster 3, and this is fixedly connected with and comprises and directly be fixedly connected with and indirectly be 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, these die holder connecting plate 7 tops are fixedly connected with cylinder 2 clutch ends 21, and its bottom relative with top is fixedly connected with upper bolster 3.Die holder connecting plate 7 is set also has an effect to be, on die holder connecting plate 7, the first guide can also be set, by the guide effect of the first guide, upper bolster 3 is moved at default track, guarantee the precision that cuts.Particularly, this first guide can be two guide pillars 81,82, this guide pillar 81, the 82nd is fixedly mounted on the support 1, and corresponding two guide pillars 81,82 arrange two guide holes on the die holder connecting plate 7, and two guide pillars 81,82 pass respectively two guide holes and form each other sliding pair.
This die shoe 4 is and upper bolster 3 corresponding settings to be used for fixing lower cutting die 6.Please refer to Fig. 2 and 3, die shoe 4 is fixedly mounted on the support 1 in the present embodiment one, and is arranged on accordingly the below of upper bolster 3.Lower cutting die 6 is fixedly mounted on the die shoe 4, is provided with on it with arc and cuts section 51, the 52 corresponding holes 61 that cut.This effect that cuts hole 61 is feed when keeping supplying cutting die 5 and cutting, and also is used for discharging simultaneously the as shown in Figure 5 waste material 114 that cuts.This cuts the shape in hole 61 and the profile of upper cutting die 5 is complementary, as shown in Figure 4.
Upper cutting die 5 and upper bolster 3 cut one under cylinder 2 drives that one moves around on the path, in order further to improve the accuracy of upper cutting die 5 and upper bolster 3 feeds, can between upper bolster 3 and die shoe 4, the second guide be set, be used for upper bolster 3 is led further.Please refer to Fig. 2 and 3, this second guide also can be two guide pillars 91,92.Therefore in the present embodiment one, compare with the first guide, this second guide plays auxiliary guide effect, and the first guide plays main guide effect, and the guide pillar 81 of the first guide, 82 diameters are greater than guide pillar 91,92 diameters of the second guide.
The lug material moves in order to prevent from cutting, and it is inaccurate to cause cutting the position, can position the 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 the die shoe 4, and is connected with upper bolster 3 by elastic component, and upper cutting die 5 and the second guide pass respectively holding pad 101.This elastic component is used for providing power to holding pad 101, can be two springs 102,103, and spring 102,103 1 ends are connected with upper bolster 3, and the other end is connected with holding pad 101.When cylinder 2 drove upper bolsters 3 and presses down, spring 102,103 was received compression, and after this himself elastic force effect holding pad 101 moves downward, and pushes down the lug material in advance, goes up cutting die 5 and just presses down, cut the redundance on the lug.Cut finish after, upper bolster 3 rises, this moment, spring 102,103 was stretched, himself elastic force effect holding pad 101 moves upward, and regains holding pad 101.Simultaneously, because upper cutting die 5 passes holding pad 101 in the present embodiment one, holding pad 101 is provided with the through hole corresponding with upper cutting die 5, upper cutting die 5 is when one cuts the path and moves around, this holding pad 101 also can be further for upper cutting die 5 provides guide effect, and raising cuts precision further.
It is as follows that present embodiment one cuts process:
The lug material is imported in the present embodiment one described cutting means between the upper cutting die 5 and lower cutting die 6, drive upper bolsters 3 and upper cutting die 5 presses down by cylinder 2, this moment, holding pad 101 touched the lug material prior to upper cutting die 5, and compressed the lug material, and realization is to the location of lug material.After holding pad 101 compressed the lug material, upper cutting die 5 continued to press down, and cooperates with lower cutting die 6, cut on the lug for part, make the lug edge have the arc outward flange.Cut finish after, cylinder 2 drives on upper bolsters 3 and the upper cutting die 5 and moves, and prepares to cut action next time.
Arc is arbitrarily one section shape, for example circular arc on circumference or the curve in this cutting means.
In the present embodiment one, because having two arcs that are used for cutting lug, upper cutting die 5 cuts section 51,52, under the driving of cylinder 2, should upper cutting die 5 can act on simultaneously two lugs 112,113 outward flange, so that the outward flange camber of lug 112,113 after cutting, become sharp convex to compare with lug outward flange in the 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 the barrier film on other battery cores is damaged, and avoids affecting the security performance of battery.
Embodiment two:
Present embodiment two provides a kind of lithium battery, and this lithium battery comprises the parts such as positive plate, negative plate, barrier film, all is provided with lug on positive plate and negative plate.In the present embodiment two, the described cutting means of arbitrary embodiment cuts and forms among this lug employing the application, and after cutting, this lug has the arc outward flange, is convenient to battery core following process and transportation.
Above content is the further description of the present invention being done in conjunction with concrete execution mode, can not assert that implementation of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace.
Claims (10)
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 the upper bolster, has at least one arc that is used for cutting lug on the described upper cutting die and cuts section, and described actuating unit control upper bolster and upper cutting die move around cutting the path;
Die shoe, the corresponding upper bolster of described die shoe is fixedly installed;
And lower cutting die, described lower cutting die is fixed on the die shoe, be provided with on it with described arc cut section corresponding cut the hole.
2. lithium battery pole ear cutting means as claimed in claim 1 is characterized in that, described upper knife mold has two arcs to cut section, and described two arc sections of cutting are arranged on two relative sides of cutting die, is used for cutting simultaneously the edge of two lugs.
3. lithium battery pole ear cutting means as claimed in claim 1 or 2, it is characterized in that, be provided with the die holder connecting plate between the clutch end of described actuating unit and the upper bolster, described upper bolster and die holder connecting plate are fixed, and are connected with the clutch end of actuating unit by the die holder connecting plate; On the described die holder connecting plate the first guide is set.
4. lithium battery pole ear cutting means as claimed in claim 3 is characterized in that, described the first guide is two guide pillars, and correspondence is provided with two guide holes that cooperate with guide pillar on the described die holder connecting plate.
5. lithium battery pole ear cutting means as claimed in claim 3 is characterized in that, is provided with the second guide between described upper bolster and the die shoe.
6. lithium battery pole ear cutting means as claimed in claim 5 is characterized in that, described the second guide is two guide pillars.
7. lithium battery pole ear cutting means as claimed in claim 5 also comprises holding pad, and described holding pad is arranged between upper bolster and the die shoe, and is connected with upper bolster by elastic component, and described upper cutting die and the second guide pass respectively holding pad.
8. lithium battery pole ear cutting means as claimed in claim 7 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.
9. lithium battery pole ear cutting means as claimed in claim 1 is characterized in that, described actuating unit is cylinder.
10. a lithium battery is characterized in that, described lithium battery comprises having the outer peripheral lug of arc.
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 true CN103078143A (en) | 2013-05-01 |
| CN103078143B CN103078143B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210590291.5A Active CN103078143B (en) | 2012-12-29 | 2012-12-29 | lithium battery and tab cutting device |
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| Country | Link |
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| CN (1) | CN103078143B (en) |
Cited By (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 |
| CN106001236A (en) * | 2016-07-05 | 2016-10-12 | 上海中兴派能能源科技有限公司 | Punching device for soft packaged battery plate lugs |
| CN106623584A (en) * | 2016-12-14 | 2017-05-10 | 昆山麦信宁机械科技有限公司 | Punching device |
| 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 |
| CN107116131A (en) * | 2017-05-16 | 2017-09-01 | 广东光博智能科技有限公司 | A kind of lug perforating press |
| CN107717463A (en) * | 2017-08-28 | 2018-02-23 | 谢齐容 | A kind of lithium battery cuts electrode lug device |
| CN107717464A (en) * | 2017-08-28 | 2018-02-23 | 谢齐容 | A kind of device for lithium battery pole ear shearing |
| CN110948784A (en) * | 2019-12-24 | 2020-04-03 | 常熟理工学院 | Injection molding equipment with material insert |
| CN111760962A (en) * | 2020-06-28 | 2020-10-13 | 惠州亿纬锂能股份有限公司 | Cutting die, method for cutting metal lithium pole piece by using same 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
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
Cited By (14)
| 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 |
| CN106001236A (en) * | 2016-07-05 | 2016-10-12 | 上海中兴派能能源科技有限公司 | Punching device for soft packaged battery plate lugs |
| CN106623584A (en) * | 2016-12-14 | 2017-05-10 | 昆山麦信宁机械科技有限公司 | Punching device |
| CN107116131A (en) * | 2017-05-16 | 2017-09-01 | 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 |
| CN107717463A (en) * | 2017-08-28 | 2018-02-23 | 谢齐容 | A kind of lithium battery cuts electrode lug device |
| CN107717464A (en) * | 2017-08-28 | 2018-02-23 | 谢齐容 | A kind of device for lithium battery pole ear shearing |
| 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 |
| CN110948784A (en) * | 2019-12-24 | 2020-04-03 | 常熟理工学院 | Injection molding equipment with material insert |
| CN111760962A (en) * | 2020-06-28 | 2020-10-13 | 惠州亿纬锂能股份有限公司 | Cutting die, method for cutting metal lithium pole piece by using same and battery |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103078143B (en) | 2015-11-25 |
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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. |
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