CN204793018U - Cylinder lithium battery tab structural design - Google Patents
Cylinder lithium battery tab structural design Download PDFInfo
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- CN204793018U CN204793018U CN201520641135.6U CN201520641135U CN204793018U CN 204793018 U CN204793018 U CN 204793018U CN 201520641135 U CN201520641135 U CN 201520641135U CN 204793018 U CN204793018 U CN 204793018U
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- negative
- pole piece
- lithium battery
- utmost point
- 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
Abstract
The utility model discloses a cylinder lithium battery tab structural design, including lithium cell electricity core, the pole piece, utmost point ear and barrier film, the pole piece includes positive plate and negative pole piece, utmost point ear is including anodal utmost point ear and negative pole utmost point ear, and utmost point ear is crescent to the afterbody interval from the pole piece head on one side of the pole piece, just, be provided with the barrier film in the middle of the negative pole piece, the positive plate below is provided with the anodal mass flow body, be provided with anodal utmost point ear on the anodal mass flow body, and both sides are provided with positive electrode active material, negative pole piece top is provided with negative current collector, the last negative pole utmost point ear that is provided with of negative current collector, and both sides are provided with negative electrode active material, lithium cell electricity core is located the lithium cell center, and all arrange around it. Beneficial effect: utmost point ear is the linear distribution at a roll core tip, reduces the battery and roll up the heat of in -core portion when big current discharge pond, alleviates the analyse lithium problem of multipolar ear battery in cyclic process greatly, can increase battery capacity.
Description
Technical field
The utility model belongs to lithium battery structure design aspect, is specifically related to the design of a kind of cylindrical lithium battery extreme ear structure.
Background technology
Lug is a kind of raw material of lithium ion polymer battery product.Battery is a point both positive and negative polarity, and lug is exactly the metallic conductor extracted by both positive and negative polarity from battery core, and the ear of battery positive and negative polarities is the contact points when carrying out discharge and recharge in popular saying.This contact point is not that copper sheet of the battery appearance that we see, but the one of inside battery connects, and is all be composited by film and metal tape two parts.For column lithium ion, the many employings of traditional extreme ear structure equidistantly design, namely lug is equidistantly distributed in pole piece (collector) side, comma coater is adopted to reserve equally spaced lug position, this simplicity of design, easy to operate, but at follow-up winding production process, along with the increase of core diameter, lug presents more and more intensive degree of distribution in core end, negative pole adopts this design to cause edge, negative electrode lug position to produce and analyses lithium phenomenon, waste a part of capacity and space to a certain extent, and easily reduce the cycle performance of resultant battery and other electrical property and security performance, affect the normal use of battery.
Utility model content
The purpose of this utility model is just to provide a kind of cylindrical lithium battery extreme ear structure to design to solve the problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of cylindrical lithium battery extreme ear structure design, comprise lithium battery electric core, pole piece, lug and barrier film, described pole piece comprises positive plate and negative plate, described lug comprises positive pole ear and negative lug, and described lug increases to afterbody spacing from described pole piece head gradually in described pole piece side, just described, described barrier film is provided with in the middle of negative plate, plus plate current-collecting body is provided with below described positive plate, described plus plate current-collecting body is provided with described positive pole ear, and both sides are provided with positive electrode active materials, negative current collector is provided with above described negative plate, described negative current collector is provided with described negative lug, and both sides are provided with negative active core-shell material, described lithium battery electric core is positioned at lithium battery center, and all arrange around it.
In said structure, when battery charges, the lithium ion that electrolysis goes out deintercalation from negative electrode, on the sunny side level motion, embed, otherwise during electric discharge, the lithium ion assembled in motion is more, and charging capacity is more with electronic synthesis lithium atom.
In order to increase battery capacity further, described lug is connected with described pole piece, and is that spacing is incrementally arranged from described pole piece head and afterbody.
In order to increase battery capacity further, in the middle of described positive plate and described negative plate, described barrier film is installed, and is all surrounded on described lithium battery electric core layout.
In order to increase battery capacity further, described positive plate is connected with described plus plate current-collecting body is functional, described plus plate current-collecting body and described positive pole ear and described positive electrode active materials is functional is connected.
In order to increase battery capacity further, described negative plate is connected with described negative current collector is functional, described negative current collector and described negative lug and described negative active core-shell material is functional is connected.
The beneficial effects of the utility model are: ensure in the increase along with core, described lug linearly distributes in core end, reduce the heat of battery core inside when heavy-current discharge pond, greatly alleviate described multi pole ears battery and analyse lithium problem in cyclic process, can battery capacity 3%-5% be increased.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of cylindrical lithium battery extreme ear structure design described in the utility model;
Fig. 2 is the lug-pole piece layout plan of a kind of cylindrical lithium battery extreme ear structure design described in the utility model;
1, negative plate; 2, negative lug; 3, negative current collector; 4, barrier film; 5, plus plate current-collecting body; 6, positive pole ear; 7, positive plate; 8, lithium battery electric core; 9, positive electrode active materials; 10, negative active core-shell material; 11, pole piece; 12, lug.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As Figure 1-Figure 2, a kind of cylindrical lithium battery extreme ear structure design, comprise lithium battery electric core 8, pole piece 11, lug 12 and barrier film 4, pole piece 11 comprises positive plate 7 and negative plate 1, lug 12 comprises positive pole ear 6 and negative lug 2, and lug 12 increases to afterbody spacing from pole piece 11 head gradually in pole piece 11 side, reduce the heat of battery core inside when heavy-current discharge pond, greatly alleviate multi pole ears 12 battery and analyse lithium problem in cyclic process, increase battery capacity, just, negative plate 7, barrier film 4 is provided with in the middle of 1, carry out lithium ion exchanged, plus plate current-collecting body 5 is provided with below positive plate 7, plus plate current-collecting body 5 is provided with positive pole ear 6, and both sides are provided with positive electrode active materials 9, negative current collector 3 is provided with above negative plate 1, negative current collector 3 is provided with negative lug 2, and both sides are provided with negative active core-shell material 10, lithium battery electric core 8 is positioned at lithium battery center, and all arrange around it, the quality of lithium battery electric core 8 determines the quality of battery.
In said structure, when battery charges, the lithium ion that electrolysis goes out deintercalation from negative electrode, on the sunny side level motion, embed, otherwise during electric discharge, the lithium ion assembled in motion is more, and charging capacity is more with electronic synthesis lithium atom.
In order to increase battery capacity further, lug 12 is connected with pole piece 11, and be that spacing is incrementally arranged from pole piece 11 head and afterbody, in the middle of positive plate 7 and negative plate 1, barrier film 4 is installed, and be all surrounded on lithium battery electric core 8 and arrange, positive plate 7 is connected with plus plate current-collecting body 5 is functional, plus plate current-collecting body 5 and positive pole ear 6 and positive electrode active materials 9 is functional is connected, negative plate 1 is connected with negative current collector 3 is functional, negative current collector 3 and negative lug 2 and negative active core-shell material 10 is functional is connected.
More than show and describe general principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and effect thing thereof.
Claims (5)
1. a cylindrical lithium battery extreme ear structure design, it is characterized in that: comprise lithium battery electric core, pole piece, lug and barrier film, described pole piece comprises positive plate and negative plate, described lug comprises positive pole ear and negative lug, and described lug increases to afterbody spacing from described pole piece head gradually in described pole piece side, just described, described barrier film is provided with in the middle of negative plate, plus plate current-collecting body is provided with below described positive plate, described plus plate current-collecting body is provided with described positive pole ear, and both sides are provided with positive electrode active materials, negative current collector is provided with above described negative plate, described negative current collector is provided with described negative lug, and both sides are provided with negative active core-shell material, described lithium battery electric core is positioned at lithium battery center, and all arrange around it.
2. a kind of cylindrical lithium battery extreme ear structure design according to claim 1, is characterized in that: described lug is connected with described pole piece, and is that spacing is incrementally arranged from described pole piece head and afterbody.
3. a kind of cylindrical lithium battery extreme ear structure design according to claim 1, is characterized in that: be provided with described barrier film in the middle of described positive plate and described negative plate, and is all surrounded on described lithium battery electric core layout.
4. a kind of cylindrical lithium battery extreme ear structure design according to claim 1, is characterized in that: described positive plate is connected with described plus plate current-collecting body is functional, described plus plate current-collecting body and described positive pole ear and described positive electrode active materials is functional is connected.
5. a kind of cylindrical lithium battery extreme ear structure design according to claim 1, is characterized in that: described negative plate is connected with described negative current collector is functional, described negative current collector and described negative lug and described negative active core-shell material is functional is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520641135.6U CN204793018U (en) | 2015-08-24 | 2015-08-24 | Cylinder lithium battery tab structural design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520641135.6U CN204793018U (en) | 2015-08-24 | 2015-08-24 | Cylinder lithium battery tab structural design |
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| Publication Number | Publication Date |
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| CN204793018U true CN204793018U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520641135.6U Active CN204793018U (en) | 2015-08-24 | 2015-08-24 | Cylinder lithium battery tab structural design |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065823A (en) * | 2018-09-20 | 2018-12-21 | 刘秦 | Button cell |
| CN114927834A (en) * | 2022-07-01 | 2022-08-19 | 齐鲁中科光物理与工程技术研究院 | Battery pole piece, electrode core and secondary battery |
-
2015
- 2015-08-24 CN CN201520641135.6U patent/CN204793018U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065823A (en) * | 2018-09-20 | 2018-12-21 | 刘秦 | Button cell |
| CN114927834A (en) * | 2022-07-01 | 2022-08-19 | 齐鲁中科光物理与工程技术研究院 | Battery pole piece, electrode core and secondary battery |
| CN114927834B (en) * | 2022-07-01 | 2024-01-09 | 齐鲁中科光物理与工程技术研究院 | Battery pole piece, electrode core and secondary battery |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |