CN102364721A - Battery tab forming apparatus - Google Patents
Battery tab forming apparatus Download PDFInfo
- Publication number
- CN102364721A CN102364721A CN2011103264737A CN201110326473A CN102364721A CN 102364721 A CN102364721 A CN 102364721A CN 2011103264737 A CN2011103264737 A CN 2011103264737A CN 201110326473 A CN201110326473 A CN 201110326473A CN 102364721 A CN102364721 A CN 102364721A
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- China
- Prior art keywords
- moving knife
- blade
- building mortion
- battery pole
- pole ear
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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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- Battery Electrode And Active Subsutance (AREA)
- Shearing Machines (AREA)
Abstract
The invention discloses a battery tab forming apparatus. The apparatus comprises two sets of mobile cutters and static cutters. The mobile cutters and the static cutters are juxtaposed in pairs. The distance between the two sets of mobile cutters and static cutters is equal to the width of a battery tab. The sum of the lengths of the two sets of mobile cutters is larger than or equal to the distance between neighboring battery tabs. Each mobile cutter is formed by two subordinate mobile blades forming a recess. The cutting edge of each subordinate mobile blade is in an angled structure. One side of the angle accords with the shape of one side of the battery tab. The other side of the angle accords with the shape of a recess bottom between neighboring battery tabs. The mobile cutters carry out straight reciprocating movements under the controlling of a driving apparatus. With the battery tab forming apparatus provided by the invention, battery tab shapes can be directly processed on an electrode sheet, wherein a metal foil is cut into battery tabs. The battery tabs and the metal foil are integrated, such that basically no spike is appeared. Therefore, short circuit inside a battery caused by battery tab spike can be avoided.
Description
Technical field
The present invention relates to a kind of battery pole ear process equipment, particularly a kind of battery pole ear building mortion.
Background technology
The electric core of lithium ion battery is made up of negative electrode pole piece, anode pole piece, barrier film etc.; Wherein barrier film separates anode and cathode slice mutually and does not contact; Anode and cathode slice is shaped on flange-lug on the edge, realizes linking to each other with the outside batteries both positive and negative polarity through lug, and battery charging and discharging can be carried out smoothly.
The base material of the anode and cathode slice of lithium battery is the super thin metal paillon foil that thickness only has 0.01-0.02mm; Because being difficult to shear, paillon foil is shaped; The current battery lug often adopts welding manner to make, and promptly lug separates making with pole piece, and then lug is welded on the base material of pole piece.The battery of making monopole ear with this kind method is feasible; Exist the internal resistance of cell big but be used for multipole ear high capacity cell, complex process, lug spacing are difficult for controlling, shortcomings such as welding stability is poor, pole piece became uneven, rate of finished products is low, homogeneity of product is bad.Adopt the welded type lug that the quality of battery, manufacturing cost etc. have been produced bigger side effect.
Summary of the invention
The objective of the invention is to overcome the weak point of prior art; And a kind of pole piece and lug are provided is one, can improve reliability of products and consistency, also can guarantee the uniformity of pole piece thickness simultaneously; Greatly make things convenient for production, improve a kind of battery pole ear building mortion of properties of product.
A kind of battery pole ear building mortion; Its structural feature is: comprise two groups moving knife and quiet cutter; Moving knife and quiet cutter are set up in parallel in pairs, and the distance between two groups of sound cuttves equals the width of a lug, and the length sum of two groups of moving knife is more than or equal to the distance between the adjacent lug; Each moving knife is made up of two branch cutting blades that surround groove shaped; Each divides the blade of cutting blade to be angled construction, and the one side at angle conforms to a side edge shape of lug, and the bottom land shape-consistent between the another side at angle and the adjacent lug, described moving knife are driven by drive unit and do linear reciprocating motion.
The battery pole ear building mortion of this structure, the tinsel exposed area at pole piece base material edge is filled in two groups sound blade in when work between, drive moving knife work; The sound cutter of each group is sheared from the both sides of lug respectively, and the formed space, interval between two groups of sound blades is lug, also shears out part or all of bottom land simultaneously; After the shaping release; The pole piece tape running pauses movable cutter set work in the position that the next one need be shaped; The lug that shearing makes new advances also is shaped bottom land, and a plurality of lugs so repeatedly just can be shaped on pole piece.
The length sum of two groups of moving knife can guarantee to cut into smoothly needed shape
more than or equal to the distance between the adjacent lug.
Adopt two fens cutting blades of breakaway-element to constitute the moving knife of each group; Help moving knife like this and quiet cutter is fitted fully, help eliminating because of mismachining tolerance, use the fit clearance of the moving knife that factor caused such as abrasion and quiet cutter, guarantee that it is the overall process shear history that moving knife cuts lug; Help controlling shearing defectives such as shear burr; Can significantly improve cutter life, cutting die significantly reduces the cutting die cost as long as changing moving knife just can produce again simultaneously.
Described battery pole ear building mortion also includes moving knife guiding mould; The blade of described moving knife is done straight reciprocating motion along moving knife guiding mold cavity; Described moving knife guiding mould is arranged at the top of quiet cutter, between quiet cutter and moving knife guiding mould, is provided with and holds the gap that pole piece passes through.
Moving knife guiding mould is set in building mortion, but the action of precise guidance moving knife, thus guarantee the accuracy sheared.
Described guiding mould inwall is provided with convex tendon.
Inwall at the guiding mould is provided with convex tendon, makes the inwall concave-convex surface structure of guiding mould, helps the trouble-free operation of moving knife.
The convex tendon of described guiding mould inwall is arranged on the jointing positions of two moving knife on the guiding mould and the corner on the moving knife.
Be provided with the gap between the blade of described quiet cutter and the guiding mould convex tendon.
Between the blade of quiet cutter and guiding mould convex tendon, the gap is set, does shearing motion when guaranteeing that moving knife moves downward and between the quiet cutter.
The gap that is provided with between the blade of described quiet cutter and the guiding mould convex tendon is 50 microns to 0.2 bold and unconstrained meter.
Described moving knife is installed on the moving knife holder through the flexible adjustment device, and the flexible adjustment device is pressed in moving knife on the moving knife guiding mould.
Cutting blade is installed on the moving knife holder through the flexible adjustment device, does not have the gap between moving knife and the quiet cutter in the time of so just can guaranteeing to shear, guarantee the quality of shearing.
Described flexible adjustment device is that spring constitutes, and an end of spring is supported on the moving knife holder, and the other end is supported on the moving knife.
The guiding mould is provided with and is used to guide moving knife to do the guide rail of straight reciprocating motion.
On the guiding mould, guide rail is set, can improves the motion accuracy of moving knife.
Described guide rail is a journal bearing.
Be provided with the gap between the branch cutting blade of each group moving knife two symmetric arrays.
Be provided with the gap between two fens cutting blades, can prevent that two fens cutting blades from interfering, so that process required lug smoothly.
The blade intersection of each component cutting blade is for being staggered.
Being staggered of the blade of the branch cutting blade of two symmetric arrays can guarantee the integrality of cutting.
Each blade that divides cutting blade for be from that side identical to that side identical with the bottom land shape with lug by the end to high gradient tendency, near quiet cutter the time with moving knife on lug identical that side tool sword first near quiet cutter.The moving knife of this structure when shearing, is inwardly sheared by the edge of pole piece gradually.
Being staggered of two transfer knife-blade extends to another minute cutting blade place and cover a bit of of another minute cutting blade for the blade of one fen cutting blade wherein; Another minute, cutting blade that a part of blade of being in intersection was that the edge is high, the gradient tendency that then drops gradually inward.
Drive that moving knife is made the drive unit of linear reciprocating motion or for hydraulic cylinder or for cylinder etc.
Described moving knife holder is installed on the upper connective plate.
In sum, the present invention compares the following advantage of prior art:
Adopt battery pole ear building mortion of the present invention, can directly on pole piece, process the lug shape, promptly tinsel is excised to form the lug shape; Lug and tinsel are one; The lug that is processed like this has basically no burr, eliminates the lug burr and causes internal short-circuit of battery.
Description of drawings
Fig. 1 is the structural representation of battery pole ear building mortion of the present invention.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the structural representation of the moving knife assembly of the embodiment of the invention.
Fig. 5 is the upward view of Fig. 4.
Fig. 6 is the A place enlarged drawing of Fig. 5.
Fig. 7 is the sketch map of quiet cutter and moving knife guiding mould.
Be provided with gap 5 upper connective plates, 6 bases, 7 flexible adjustment devices, 8 guide rails, 9 upper connective plates that hold pole piece between convex tendon 42 cuttves on those side 2 quiet cutter 3 moving knife holders 4 moving knife guiding mould 41 guiding moulds of one side 12 of the branch cutting blade that label declaration 1 moving knife 11 conforms to the lug side edge shape and the bottom land shape-consistent between the adjacent lug and the moving knife guiding mould.
Embodiment
Below in conjunction with embodiment the present invention is described in more detail.
A kind of battery pole ear building mortion shown in Fig. 1-7 comprises moving knife 1, quiet cutter 2, moving knife holder 3, moving knife guiding mould 4, upper connective plate 5 and base 6.Comprise two groups of moving knife that are set up in parallel and quiet cutter; Moving knife and quiet cutter are provided with in pairs; Distance between two groups of sound cuttves equals the width of a lug; The length sum of two groups of moving knife is more than or equal to the distance between the adjacent lug, and each moving knife is made up of two branch cutting blades that surround groove shaped, and each divides the blade of cutting blade to be angled construction; The one side at angle conforms to 11 with a side edge shape of lug, and the bottom land shape-consistent 12 between the another side at angle and the adjacent lug, described moving knife are driven by drive unit and do linear reciprocating motion.Be provided with the gap between two fens cutting blades, the blade intersection of two fens cutting blades is for being staggered.Described battery pole ear building mortion also includes moving knife guiding mould; The blade of described moving knife is done straight reciprocating motion along moving knife guiding mold cavity; Described moving knife guiding mould is arranged at the top of quiet cutter, between quiet cutter and moving knife guiding mould, is provided with the gap 42 that holds pole piece.Guiding mould inwall is provided with convex tendon 41.The convex tendon of guiding mould inwall is arranged on the jointing positions of two moving knife on the guiding mould and the corner on the moving knife.Be provided with 0.1 person of outstanding talent meter gap between the blade of quiet cutter and the guiding mould convex tendon.Described moving knife is driven by drive unit and does linear reciprocating motion.Described drive unit is a hydraulic cylinder.Described moving knife is installed on the moving knife holder through flexible adjustment device 7, and the flexible adjustment device is pressed in moving knife on the moving knife guiding mould.Described flexible adjustment device is that spring constitutes, and an end of spring is supported on the moving knife holder, and the other end is supported on the moving knife.The guiding mould is provided with and is used to guide moving knife to do the guide rail 8 that is made up of journal bearing of straight reciprocating motion.Described guiding mould is installed on the base 6.Described moving knife holder is installed on the upper connective plate 9.Each blade that divides cutting blade for be from that side identical to that side identical with the bottom land shape with lug by the end to high gradient tendency, near quiet cutter the time with moving knife on lug identical that side tool sword first near quiet cutter.Being staggered of two transfer knife-blade extends to another minute cutting blade place and cover a bit of of another minute cutting blade for the blade of one fen cutting blade wherein; Another minute, cutting blade that a part of blade of being in intersection was that the edge is high, the gradient tendency that then drops gradually inward.
It is identical with prior art that present embodiment is not stated part.
Claims (10)
1. battery pole ear building mortion; It is characterized in that: comprise two groups moving knife and quiet cutter; Moving knife and quiet cutter are set up in parallel in pairs, and the distance between two groups of sound cuttves equals the width of a lug, and the length sum of two groups of moving knife is more than or equal to the distance between the adjacent lug; Each moving knife is made up of two branch cutting blades that surround groove shaped; Each divides the blade of cutting blade to be angled construction, and the one side at angle conforms to a side edge shape of lug, and the bottom land shape-consistent between the another side at angle and the adjacent lug, described moving knife are driven by drive unit and do linear reciprocating motion.
2. battery pole ear building mortion according to claim 1; It is characterized in that: described battery pole ear building mortion also includes moving knife guiding mould; The blade of described moving knife is done straight reciprocating motion along moving knife guiding mold cavity; Described moving knife guiding mould is arranged at the top of quiet cutter, between quiet cutter and moving knife guiding mould, is provided with and holds the gap that pole piece passes through.
3. battery pole ear building mortion according to claim 2 is characterized in that: be provided with convex tendon at guiding mould inwall.
4. battery pole ear building mortion according to claim 3 is characterized in that: the convex tendon of described guiding mould inwall is arranged on the jointing positions of two moving knife on the guiding mould and the corner on the moving knife.
5. battery pole ear building mortion according to claim 4 is characterized in that: be provided with the gap between the blade of described quiet cutter and the guiding mould convex tendon.
6. battery pole ear building mortion according to claim 5 is characterized in that: the gap that is provided with between the blade of described quiet cutter and the guiding mould convex tendon is 50 microns to 0.2 bold and unconstrained meter.
7. battery pole ear building mortion according to claim 6 is characterized in that: described moving knife is installed on the moving knife holder through the flexible adjustment device, and the flexible adjustment device is pressed in moving knife on the moving knife guiding mould.
8. battery pole ear building mortion according to claim 7 is characterized in that: the blade intersection of each component cutting blade is for being staggered.
9. according to any one described battery pole ear building mortion of claim 1 to 8; It is characterized in that: each blade that divides cutting blade for be from that side identical to that side identical with the bottom land shape with lug by the end to high gradient tendency, near quiet cutter the time with moving knife on lug identical that side tool sword first near quiet cutter.
10. battery pole ear building mortion according to claim 9; It is characterized in that: being staggered of two transfer knife-blade extends to another minute cutting blade place and cover a bit of of another minute cutting blade for the blade of one fen cutting blade wherein; Another minute, cutting blade that a part of blade of being in intersection was that the edge is high, the gradient tendency that then drops gradually inward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103264737A CN102364721B (en) | 2011-10-24 | 2011-10-24 | Battery tab forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103264737A CN102364721B (en) | 2011-10-24 | 2011-10-24 | Battery tab forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102364721A true CN102364721A (en) | 2012-02-29 |
| CN102364721B CN102364721B (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103264737A Expired - Fee Related CN102364721B (en) | 2011-10-24 | 2011-10-24 | Battery tab forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102364721B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610781A (en) * | 2012-04-16 | 2012-07-25 | 东莞新能源科技有限公司 | Forming machine for battery tab and forming method for battery tab |
| CN106328879A (en) * | 2015-06-30 | 2017-01-11 | 宁德时代新能源科技股份有限公司 | Battery tab forming equipment and battery tab forming method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101015867A (en) * | 2007-03-06 | 2007-08-15 | 杭州万马高能量电池有限公司 | Full-automatic lug cutting machine |
| CN101774041A (en) * | 2010-02-08 | 2010-07-14 | 深圳市赢合科技有限公司 | Tab cutting device |
| CN102101307A (en) * | 2010-12-30 | 2011-06-22 | 宁德新能源科技有限公司 | Combined cutter die for forming lithium battery tab |
| CN202241459U (en) * | 2011-10-24 | 2012-05-30 | 陈红勇 | Battery tab forming device |
-
2011
- 2011-10-24 CN CN2011103264737A patent/CN102364721B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101015867A (en) * | 2007-03-06 | 2007-08-15 | 杭州万马高能量电池有限公司 | Full-automatic lug cutting machine |
| CN101774041A (en) * | 2010-02-08 | 2010-07-14 | 深圳市赢合科技有限公司 | Tab cutting device |
| CN102101307A (en) * | 2010-12-30 | 2011-06-22 | 宁德新能源科技有限公司 | Combined cutter die for forming lithium battery tab |
| CN202241459U (en) * | 2011-10-24 | 2012-05-30 | 陈红勇 | Battery tab forming device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610781A (en) * | 2012-04-16 | 2012-07-25 | 东莞新能源科技有限公司 | Forming machine for battery tab and forming method for battery tab |
| CN102610781B (en) * | 2012-04-16 | 2016-06-22 | 东莞新能源科技有限公司 | Battery pole ear forming machine and battery pole ear manufacturing process |
| CN106328879A (en) * | 2015-06-30 | 2017-01-11 | 宁德时代新能源科技股份有限公司 | Battery tab forming equipment and battery tab forming method |
| CN106328879B (en) * | 2015-06-30 | 2022-09-23 | 宁德时代新能源科技股份有限公司 | Battery tab forming equipment and battery tab forming method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102364721B (en) | 2013-06-12 |
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Granted publication date: 20130612 Termination date: 20151024 |
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| EXPY | Termination of patent right or utility model |