CN204793028U - Utmost point ear pole piece is assisted in area and lithium ion battery of utmost point ear pole piece is assisted in area - Google Patents
Utmost point ear pole piece is assisted in area and lithium ion battery of utmost point ear pole piece is assisted in area Download PDFInfo
- Publication number
- CN204793028U CN204793028U CN201520560630.4U CN201520560630U CN204793028U CN 204793028 U CN204793028 U CN 204793028U CN 201520560630 U CN201520560630 U CN 201520560630U CN 204793028 U CN204793028 U CN 204793028U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- utmost point
- point ear
- lug
- coating portion
- 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- Withdrawn - After Issue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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model discloses an utmost point ear pole piece is assisted in area and lithium ion battery of utmost point ear pole piece is assisted in area, including coiled electricity core, the electricity core includes positive plate, first unfamiliar, negative pole piece and second diaphragm, and positive plate and negative pole piece all are that utmost point ear pole piece is assisted in the area, and the no coating portion that utmost point ear pole piece includes coating portion and tail end weld zone is assisted in the area, and nos coating portion is equipped with utmost point ear along pole piece length direction, and one side of coating portion is distributing a plurality of and is assisting extremely ear, behind the pole piece coiling, assisting utmost point ear and overlapping together, electric core is coiled into after neatly stacking with the second diaphragm to positive plate, first unfamiliar, negative pole piece, assists utmost point ear and overlaps the welding back and form and just assist utmost point ear and assist utmost point ear with the burden, just assisting utmost point ear assist utmost point ear with the burden on the cladding have high temperature adhesive tape or indisputable fluorine dragon, is just assisting utmost point ear and burden and is assisting the utmost point ear back plane on the parallel electric core of buckling, the beneficial effects are that: connect each section pole piece through assisting utmost point ear, realize the heavy current charge -discharge of battery, the stability of the utmost point ear final phase of a project position after guaranteeing to convolute, simple structure, security performance are high.
Description
Technical field
The utility model relates to technical field of lithium ion, is specifically related to a kind of with auxiliary lug pole piece and the lithium ion battery with auxiliary lug pole piece.
Background technology
Lithium ion battery belongs to rechargeable pond, have that operating voltage is high, energy density is high, serviceability temperature wide ranges, have extended cycle life, the outstanding advantages such as self discharge is little, environmental protection.Be widely used in various mobile digital product, electric tool, electronic toy, notebook computer, electric automobile etc., and in the very large market share of secondary cell market share.
Lithium ion battery, according to external shape, can be divided into square, column type, is divided into box hat, aluminum hull, aluminum plastic film according to housing material.At present, square lithium ion battery is divided into winding and lamination two class technique substantially, and winding process divides monopole ear technique and multi pole ears technique; Winding process, particularly warp technique, in the fabrication process, due to the otherness of employee and the otherness of equipment, cause the ending position of lug unstable, cause the lug spacing of battery itself unstable.
Utility model content
Technical problem to be solved in the utility model is to provide the auxiliary lug pole piece of a kind of band and lithium ion battery thereof, and its structure is simple, security performance is high, can realize the high current charge-discharge of battery, ensure the consistency of the lug spacing of battery.
The technical solution realizing the utility model object is: be with auxiliary lug pole piece, it is characterized in that: comprise coating portion and tail end weld zone without coating portion, describedly be provided with lug without coating portion along pole piece length direction, the side in described coating portion is dispersed with several auxiliary lugs, after pole piece coiling, described auxiliary lug overlaps.
With the lithium ion battery of auxiliary lug pole piece, comprise coiled battery core, described battery core comprises positive plate, first barrier film, negative plate and the second barrier film, it is characterized in that: described positive plate and negative plate are all the auxiliary lug pole pieces of band, the auxiliary lug pole piece of described band comprise coating portion and tail end weld zone without coating portion, describedly be provided with lug without coating portion along pole piece length direction, the side in described coating portion is dispersed with several auxiliary lugs, after pole piece coiling, described auxiliary lug overlaps, described positive plate, first barrier film, battery core is wound into after negative plate and the second barrier film neatly stack, just auxiliary lug and negative auxiliary lug is formed after the welding of auxiliary lug overlap, just auxiliary lug and negative auxiliary lug are coated with high tempreture tape or Teflon, just auxiliary lug and plane in parallel battery core after negative auxiliary lug bending.
Spacing between described adjacent auxiliary lug increases progressively by wash rice by becoming arithmetic progression after forward direction.
The described thickness of positive plate, the first barrier film, negative plate, the second barrier film of establishing is respectively r1, r2, r3, r4, and the tolerance of described arithmetic progression is 2k π (r1+r2+r3+r4), wherein, and k >=1.
A kind of lithium ion battery improving lug of the utility model has following beneficial effect: increase auxiliary lug and connect each section of pole piece, the power of battery can be improved, realize the high current charge-discharge of battery, ensure the stability of the lug ending position after winding, structure is simple, qualification rate is high, security performance is high
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the utility model is elaborated;
Fig. 1 is the structural representation with auxiliary lug pole piece in the utility model;
Fig. 2 is the structural representation of the lithium ion battery with auxiliary lug pole piece in the utility model
Fig. 3 is the structural representation after this Fig. 2 winding;
Fig. 4 is the auxiliary lug of this Fig. 3 positive pole and the auxiliary tab welding of negative pole and structural representation after cutting;
Fig. 5 is the structural representation that the just auxiliary lug of Fig. 4 and negative auxiliary lug are coated with high-temp glue or Teflon;
Fig. 6 is that Fig. 5 flattens the structural representation being shaped to square battery.
Embodiment
As shown in Figure 1, be with auxiliary lug pole piece 1, comprise coating portion 1.1 and tail end weld zone without coating portion 1.2, describedly be provided with lug 1.3 without coating portion 1.2 along pole piece length direction, the side in described coating portion 1.1 is dispersed with several auxiliary lugs 1.4, after pole piece coiling, described auxiliary lug 1.4 overlaps.Spacing between described adjacent auxiliary lug 1.4 increases progressively by wash rice by becoming arithmetic progression after forward direction; The described thickness of positive plate, the first barrier film, negative plate, the second barrier film of establishing is respectively r1, r2, r3, r4, and the tolerance of described arithmetic progression is 2k π (r1+r2+r3+r4), wherein, and k >=1.Pole piece as shown in Figure 1 spacing is die-cut, and in figure, a is the spacing between the first auxiliary lug and the second auxiliary lug, is the first term of arithmetic progression, the tolerance of arithmetic progression is x, x=2k π (r1+r2+r3+r4), k >=1, the spacing between adjacent auxiliary lug increases successively by after forward direction.Be wound into battery core after positive plate, the first barrier film, negative plate and the second barrier film neatly stack, owing to there being auxiliary lug to connect each section of pole piece, thus ensure the spacing between anode ear and negative electrode lug, the spacing of anode ear and negative electrode lug is stablized
As shown in Fig. 2 ~ Fig. 6, with the lithium ion battery of auxiliary lug pole piece, comprise coiled battery core, described battery core comprises positive plate 1a, the first barrier film 2, negative plate 1b and the second barrier film 3, described positive plate 1a comprises the positive pole of positive pole coating portion 1.1a and tail end weld zone without coating portion 1.2a, described positive pole is welded with anode ear 1.3a without coating portion 1.2a along pole piece length direction, and the side of described positive pole coating portion 1.2a is dispersed with the auxiliary lug 1.4a of several positive poles, described negative plate 1b comprises the negative pole of negative pole coating portion 1.1b and tail end weld zone without coating portion 1.2b, described negative pole is welded with negative electrode lug 1.3b without coating portion 1.2b along pole piece length direction, and the side of described negative pole coating portion 1.1b is dispersed with the auxiliary lug 1.4b of several negative poles, described positive plate 1a, first barrier film 2, battery core is wound into after negative plate 1b and the second barrier film 3 neatly stack, positive pole auxiliary lug 1.4a and the auxiliary lug 1.4b of negative pole overlaps separately, anode ear 1.3a and negative electrode lug 1.3b is distributed in the side of battery core, ensureing under the spacing between anode ear and negative electrode lug, auxiliary for positive pole lug 1.4a is welded together and auxiliary for unnecessary positive pole lug 1.4a is cut the just auxiliary lug 1.5a of rear formation, auxiliary for negative pole lug 1.4b is welded together and auxiliary for unnecessary negative pole lug 1.4a is cut rear formation and bear auxiliary lug 1.5b, main body as far as possible near battery core during welding, adopt high-temp glue or Teflon 4 by coated for just auxiliary lug 1.5a and negative auxiliary lug 1.5b, thus protect, bend just auxiliary lug 1.5a and bear auxiliary lug 1.5b and make it to be parallel to plane in battery core.Described anode ear 1.3a is connected with cathode output end, negative electrode lug 1.3b is connected with cathode output end, positive pole coating portion 1.1a is coated with positive electrode coating, negative pole coating portion 1.1b is coated with negative material coating, the base material of positive plate 1a is aluminium foil, the base material of negative plate 1b is Copper Foil, and anode ear 1.3a is made up of aluminium strip and PUR, and negative electrode lug 1.3b is made up of nickel strap or copper nickel plating band and PUR.
Auxiliary lug is adopted to connect each section of pole piece, the power of battery can be improved, realize the high current charge-discharge of battery, the spacing of anode ear and negative electrode lug is a material impact parameter of battery, after adopting auxiliary extreme ear structure, the spacing of anode ear and negative electrode lug directly regulates according to welding position, convenient for production, thus ensure that the stability of the ending of the lug after winding position.
Claims (4)
1. be with auxiliary lug pole piece, it is characterized in that: comprise coating portion and tail end weld zone without coating portion, be describedly provided with lug without coating portion along pole piece length direction, the side in described coating portion is dispersed with several auxiliary lugs, after pole piece coiling, described auxiliary lug overlaps.
2. be with the lithium ion battery of auxiliary lug pole piece, comprise coiled battery core, described battery core comprises positive plate, first barrier film, negative plate and the second barrier film, it is characterized in that: described positive plate and negative plate are all the auxiliary lug pole pieces of band, the auxiliary lug pole piece of described band comprise coating portion and tail end weld zone without coating portion, describedly be provided with lug without coating portion along pole piece length direction, the side in described coating portion is dispersed with several auxiliary lugs, after pole piece coiling, described auxiliary lug overlaps, described positive plate, first barrier film, battery core is wound into after negative plate and the second barrier film neatly stack, just auxiliary lug and negative auxiliary lug is formed after the welding of auxiliary lug overlap, just auxiliary lug and negative auxiliary lug are coated with high tempreture tape or Teflon, just auxiliary lug and plane in parallel battery core after negative auxiliary lug bending.
3. the lithium ion battery of the auxiliary lug pole piece of band according to claim 2, is characterized in that: the spacing between described adjacent auxiliary lug increases progressively by wash rice by becoming arithmetic progression after forward direction.
4. the lithium ion battery of the auxiliary lug pole piece of band according to claim 3, it is characterized in that: described in establish the thickness of positive plate, the first barrier film, negative plate, the second barrier film to be respectively r1, r2, r3, r4, the tolerance of described arithmetic progression is 2k π (r1+r2+r3+r4), wherein, k >=1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560630.4U CN204793028U (en) | 2015-07-29 | 2015-07-29 | Utmost point ear pole piece is assisted in area and lithium ion battery of utmost point ear pole piece is assisted in area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560630.4U CN204793028U (en) | 2015-07-29 | 2015-07-29 | Utmost point ear pole piece is assisted in area and lithium ion battery of utmost point ear pole piece is assisted in area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204793028U true CN204793028U (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520560630.4U Withdrawn - After Issue CN204793028U (en) | 2015-07-29 | 2015-07-29 | Utmost point ear pole piece is assisted in area and lithium ion battery of utmost point ear pole piece is assisted in area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204793028U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070880A (en) * | 2015-07-29 | 2015-11-18 | 佛山市实达科技有限公司 | Pole plates with auxiliary tabs and lithium-ion battery of pole plates with auxiliary tabs |
| CN108808074A (en) * | 2018-07-04 | 2018-11-13 | 樊朝晖 | A kind of half winds lamination lithium ion battery cell and preparation method thereof |
| CN114976512A (en) * | 2021-02-23 | 2022-08-30 | 北京小米移动软件有限公司 | Pole piece, electric core structure, lithium battery and electronic equipment |
-
2015
- 2015-07-29 CN CN201520560630.4U patent/CN204793028U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070880A (en) * | 2015-07-29 | 2015-11-18 | 佛山市实达科技有限公司 | Pole plates with auxiliary tabs and lithium-ion battery of pole plates with auxiliary tabs |
| CN108808074A (en) * | 2018-07-04 | 2018-11-13 | 樊朝晖 | A kind of half winds lamination lithium ion battery cell and preparation method thereof |
| CN114976512A (en) * | 2021-02-23 | 2022-08-30 | 北京小米移动软件有限公司 | Pole piece, electric core structure, lithium battery and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20170825 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20170825 |