CN205583036U - A pole piece for lamination battery - Google Patents
A pole piece for lamination battery Download PDFInfo
- Publication number
- CN205583036U CN205583036U CN201620313709.1U CN201620313709U CN205583036U CN 205583036 U CN205583036 U CN 205583036U CN 201620313709 U CN201620313709 U CN 201620313709U CN 205583036 U CN205583036 U CN 205583036U
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- CN
- China
- Prior art keywords
- pole piece
- district
- rubberised
- horizontal
- width
- Prior art date
- 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.)
- Withdrawn - After Issue
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Classifications
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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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- Laminated Bodies (AREA)
Abstract
The utility model provides a pole piece for lamination battery, including the foil base member, this foil matrix surface is formed with active material district, utmost point ear margin portion district and rubber coating to be distinguished, active material arranges the middle part at the foil base member in the district, utmost point ear margin portion position is marginal in the both sides of foil base member, the rubber coating district includes along two at least vertical rubberised layers of foil base member length direction parallel arrangement to reach along two at least horizontal rubberised layers of foil base member width direction parallel arrangement, vertical rubberised layer of both sides coats in the intersection that active material distinguished and utmost point ear margin portion distinguishes, and horizontal rubberised layer coats in active material distinguishes, and the interval of two adjacent vertical rubberised layers equals the singly length of a pole piece, and the interval of two adjacent horizontal rubberised layers equals the singly width of a pole piece. The utility model discloses an at the surperficial rubber coating of pole piece, can bond pole piece and diaphragm to fix effectively and be in the same place to realize the preparation of coiling formula lamination battery.
Description
Technical field
This utility model relates to technical field of lithium ion, is specifically related to a kind of pole piece for stacked secondary cell.
Background technology
Along with the further development of the electronic product such as notebook computer, smart mobile phone, lithium ion battery is increasingly widely applied.Lithium ion battery, also due to its light weight, volume are little, specific energy is high, self discharge is little, good cycle, pollution are little and the feature such as memory-less effect, becomes one of green secondary cell of 21 century most application prospect.
It is high that the most conventional lithium-ion electric core uses takeup type manufacture method, this method to have production efficiency, and cost is relatively low, simple operation and other advantages.But being as new-energy automobile further genralrlization to popularize, conventional lithium-ion battery the most gradually exposes its weak point: as internal resistance is big, security performance is general, high rate charge-discharge poor performance etc..Then laminated batteries and take into account the takeup type laminated batteries of performance and efficiency and arise at the historic moment, compares winding-structure, and lamination has the most consistent electric current density, excellent internal heat dissipating performance, excellent high rate capability, is more suitable for high power discharge.
One of making difficult point of this laminated batteries or takeup type laminated batteries is how to be bonded together pole piece and barrier film and guarantee not occur pole piece skew to cause both positive and negative polarity contact short circuit.Most common method uses gluing barrier film exactly at present, but gluing barrier film price is higher, causes takeup type laminated batteries production cost higher.
Utility model content
This utility model provides a kind of pole piece for laminated batteries, at battery pole piece surface coating, saves early stage and prepares the economic input of gluing barrier film, have more preferable economy and production efficiency.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that
A kind of pole piece for laminated batteries, including foil matrix, this foil matrix surface is formed with active substance district, lug is left white district and coating area, described active substance district is arranged in the middle part of foil matrix, described lug is left white district and is positioned at the both sides of the edge of foil matrix, described coating area includes at least two the longitudinal rubberised layers being arranged in parallel along foil length thereof direction, and at least two the horizontal rubberised layers being arranged in parallel along foil matrix width direction, longitudinal rubberised layer of both sides is coated on active substance district and lug and is left white the intersection in district, laterally rubberised layer is coated in active substance district, the spacing of adjacent two longitudinal rubberised layers is equal to the length of single pole piece, the spacing of adjacent two horizontal rubberised layers is equal to the width of single pole piece.
Preferably, the width in described active substance district is 20-1000 mm.
Preferably, described lug is left white the width in district is 5-
50 mm。
Preferably, the width of described longitudinal rubberised layer and horizontal rubberised layer is 2-20
mm。
Preferably, the thickness of described longitudinal rubberised layer and horizontal rubberised layer is 0.5-10 μm.
Preferably, the one during the be coated with colloid in described coating area is Kynoar solution, polymethyl methacrylate solution, cmc soln, butadiene-styrene rubber solution and polyacrylonitrile solution.
Preferably, the width range of described single pole piece is 10-500 mm.
Preferably, described foil matrix is dual coating, and double spread zone position overlaps.
From above technical scheme, this utility model is by pole piece gluing, it is possible to together with being effectively adhesively fixed with barrier film by pole piece, thus realize the making of takeup type laminated batteries；Existing laminated batteries can be improved in problems such as manufacturing process septation and pole piece generation dislocation simultaneously, can effectively promote security performance；Pole piece gluing can be greatly reduced production cost, improves production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of pole piece in this utility model preferred embodiment；
Fig. 2 is the single pole piece schematic diagram in this utility model after cross cutting.
In figure: 1, foil matrix, 11, single pole piece, 2, active substance district, 3, lug be left white district, 31, lug, 4, coating area, 41, longitudinal rubberised layer, 42, horizontal rubberised layer.
Detailed description of the invention
Below in conjunction with the accompanying drawings a kind of preferred implementation of the present utility model is described in detail.
Pole piece described in the utility model includes foil matrix 1, and this foil matrix can be partitioned into the single pole piece 11 of many groups by cross cutting.
As it is shown in figure 1, be formed with active substance district 2 on the foil matrix 1 of pole piece, lug is left white district 3 and coating area 4, described active substance district 2 is arranged in the middle part of foil matrix, and described lug is left white district 3 and is positioned at the both sides of the edge of foil matrix.Described coating area 4 includes at least two longitudinal direction rubberised layer 41 and the horizontal rubberised layer of at least two 42, this longitudinal direction rubberised layer is arranged in parallel along foil length thereof direction, laterally rubberised layer is arranged in parallel along foil matrix width direction, longitudinal rubberised layer of both sides is coated on active substance district and lug and is left white the intersection in district, and horizontal rubberised layer is coated in active substance district.In the present embodiment, coating area 4 is made up of three longitudinal rubberised layers and 11 horizontal rubberised layers, rubberised layer width is 2-20 mm, thickness is 0.5-10 μm, wherein longitudinal rubberised layer on both sides covering part active substance district and part lug simultaneously is left white district, middle longitudinal rubberised layer is positioned at active substance district center position, the spacing of adjacent two longitudinal rubberised layers is equal to the length of single pole piece 11, the spacing of adjacent two horizontal rubberised layers is equal to the width of single pole piece 11, and width range is 10-500 mm.
The painting method of pole piece is first to form active substance district 2 at foil matrix 1 coated on both sides active substance, is left white district 3 coating adhesive body the most again in active substance district 2 and lug and forms coating area 4.Depending on active substance district 2 is according to battery sizes, general width range is 20-1000 mm, and the lug on foil matrix both sides is left white district 3 for cutting out lug, and it is 5-50 mm that lug is left white sector width.Complete the coating of another side after completing a gluing again, and must assure that double spread zone position overlaps.Laminated batteries is gone out with single pole piece 11, as shown in dotted portion in Fig. 1 finally along coating area cross cutting.Single pole piece is as in figure 2 it is shown, include active substance district 2, lug 31 and coating area 4.
Gluing pole piece of the present utility model is in quick lamination or takeup type laminated batteries, it is possible to achieve pole piece has effective adhesive method technique simultaneously simple with barrier film, with low cost, relative to barrier film gluing, has more preferable economy and production efficiency.Simultaneously because the edge often organizing single pole piece all scribbles colloid, therefore will not produce dust and burr when cutting, safety and the service life of battery can be effectively improved.
The be coated with colloid in described coating area 4 is Kynoar (PVDF) solution, PMMA(polymethyl methacrylate) solution, CMC(carboxymethyl cellulose) solution, SBR(butadiene-styrene rubber) solution, PAN(polyacrylonitrile) one or more mixing of solution etc., or be the compounding substances of above-mentioned colloid and ceramic size.
The above embodiment is only to be described preferred implementation of the present utility model; not scope of the present utility model is defined; on the premise of without departing from this utility model design spirit; various deformation that the technical solution of the utility model is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that claims of the present utility model determine.
Claims (8)
- null1. the pole piece for laminated batteries，It is characterized in that，Including foil matrix，This foil matrix (1) surface is formed with active substance district (2)、Lug is left white district (3) and coating area (4)，Described active substance district (2) is arranged in the middle part of foil matrix，Described lug is left white district (3) and is positioned at the both sides of the edge of foil matrix，Described coating area (4) includes at least two the longitudinal rubberised layers (41) being arranged in parallel along foil length thereof direction，And at least two the horizontal rubberised layers (42) being arranged in parallel along foil matrix width direction，Longitudinal rubberised layer of both sides is coated on active substance district (2) and lug and is left white the intersection of district (3)，In laterally rubberised layer is coated on active substance district (2)，The spacing of adjacent two longitudinal rubberised layers is equal to the length of single pole piece (11)，The spacing of adjacent two horizontal rubberised layers is equal to the width of single pole piece (11).
- Pole piece the most according to claim 1, it is characterised in that the width of described active substance district (2) is 20-1000 mm.
- Pole piece the most according to claim 1, it is characterised in that it is 5-50 mm that described lug is left white the width in district (3).
- Pole piece the most according to claim 1, it is characterised in that the width of described longitudinal rubberised layer (41) and horizontal rubberised layer (42) is 2-20 mm.
- Pole piece the most according to claim 1, it is characterised in that the thickness of described longitudinal rubberised layer (41) and horizontal rubberised layer (42) is 0.5-10 μm.
- Pole piece the most according to claim 1, it is characterised in that described coating area (4) be coated with colloid is the one in Kynoar solution, polymethyl methacrylate solution, cmc soln, butadiene-styrene rubber solution and polyacrylonitrile solution.
- Pole piece the most according to claim 1, it is characterised in that the width range of described single pole piece (11) is 10-500 mm.
- Pole piece the most according to claim 1, it is characterised in that described foil matrix (1) is dual coating, double spread zone position overlaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620313709.1U CN205583036U (en) | 2016-04-15 | 2016-04-15 | A pole piece for lamination battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620313709.1U CN205583036U (en) | 2016-04-15 | 2016-04-15 | A pole piece for lamination battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205583036U true CN205583036U (en) | 2016-09-14 |
Family
ID=56862701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620313709.1U Withdrawn - After Issue CN205583036U (en) | 2016-04-15 | 2016-04-15 | A pole piece for lamination battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205583036U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845885A (en) * | 2016-04-15 | 2016-08-10 | 合肥国轩高科动力能源有限公司 | Pole piece for laminated battery |
| CN110165280A (en) * | 2019-05-29 | 2019-08-23 | 成都特隆美储能技术有限公司 | The lamination process and its battery of a kind of vibration resistance, long-life energy-storage battery |
| CN111416100A (en) * | 2020-02-28 | 2020-07-14 | 合肥国轩高科动力能源有限公司 | Preparation method of battery cell |
| CN113285110A (en) * | 2021-03-24 | 2021-08-20 | 中航锂电（洛阳）有限公司 | Battery, gluing method and manufacturing method of battery core |
-
2016
- 2016-04-15 CN CN201620313709.1U patent/CN205583036U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845885A (en) * | 2016-04-15 | 2016-08-10 | 合肥国轩高科动力能源有限公司 | Pole piece for laminated battery |
| CN110165280A (en) * | 2019-05-29 | 2019-08-23 | 成都特隆美储能技术有限公司 | The lamination process and its battery of a kind of vibration resistance, long-life energy-storage battery |
| CN111416100A (en) * | 2020-02-28 | 2020-07-14 | 合肥国轩高科动力能源有限公司 | Preparation method of battery cell |
| CN113285110A (en) * | 2021-03-24 | 2021-08-20 | 中航锂电（洛阳）有限公司 | Battery, gluing method and manufacturing method of battery core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Jiajia Inventor after: Xu Tao Inventor after: Wang Chenxu Inventor before: Liu Wei Inventor before: Zhang Hongli |
|
| COR | Change of bibliographic data | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160914 Effective date of abandoning: 20181130 |
|
| AV01 | Patent right actively abandoned |