CN208368608U - A kind of coiling type lithium battery tab of bend resistance - Google Patents
A kind of coiling type lithium battery tab of bend resistance Download PDFInfo
- Publication number
- CN208368608U CN208368608U CN201820710628.4U CN201820710628U CN208368608U CN 208368608 U CN208368608 U CN 208368608U CN 201820710628 U CN201820710628 U CN 201820710628U CN 208368608 U CN208368608 U CN 208368608U
- Authority
- CN
- China
- Prior art keywords
- tab
- punching press
- lithium battery
- type lithium
- bend resistance
- 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.)
- Active
Links
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a kind of coiling type lithium battery tabs of bend resistance, including tab ontology；Tab body surface is uniformly arranged multiple round punching press impressions, and round punching press impression is distributed in tab body surface in equilateral triangle arrangement；Round punching press impression is formed using knurling rolls roll-in, and the punching press boss of knurling rolls is that hemispherical projections cut away its punching press boss of top spherical surface to form horizontal plane.In the utility model, knurling rolls carry out roller processing to tab, and tab body surface forms round punching press impression, to play the role of reinforcing rib；Round punching press impression improves the bending stiffness of tab, internal stress increases, and improves the rigidity of tab, effectively solves the problems, such as lug bending in winding process；In addition, tab has good integrality and conveyance capacity after roll-in, battery performance is not influenced.
Description
Technical field
The utility model relates to field of lithium more particularly to a kind of coiling type lithium battery tabs of bend resistance.
Background technique
The tab of coiling type lithium battery is the metallic conductor for extracting positive and negative anodes from battery core, is that battery carries out charge and discharge
The contact point of electricity.
Tab processing is cut in such a way that laser is cut in the pole piece side for being coated with active material slurry, and with pole
Piece is wound into core together；Due to tab thinner thickness, bending stiffness is poor, as pole piece operation generation is larger in winding process
The vibration of amplitude, and the case where being easy to happen bending by small outer force-disturbance when crossing roller, to influence subsequent core
The charge-discharge performance and security performance of conformity of production or even battery core finished product.
Therefore, the raising of the bending stiffness of tab has important meaning for the production efficiency and yields of coiling type lithium battery
Justice.
Utility model content
To solve technical problem present in background technique, the utility model proposes a kind of coiling type lithium batteries of bend resistance
Tab not only ensure that the flatness and conveyance capacity of tab, but also can improve the rigidity of tab by increasing internal stress, effectively solve
Certainly in winding process the problem of lug bending.
The utility model proposes a kind of bend resistance coiling type lithium battery tab, including tab ontology；This body surface of tab
Face is uniformly arranged multiple round punching press impressions.
Preferably, the diameter of round punching press impression is 2 millimeters.
Preferably, the distance of center circle between round punching press impression is 2-3 millimeters.
Preferably, round punching press impression is distributed in tab body surface in equilateral triangle arrangement.
Preferably, the depth of round punching press impression is not less than 0.2 millimeter.
Preferably, round punching press impression is formed using knurling rolls roll-in.
Preferably, the punching press boss of knurling rolls be hemispherical projections cut away its top spherical surface it is convex with the punching press for forming horizontal plane
Platform.
In the utility model, knurling rolls carry out roller processing to tab, and tab body surface forms round punching press impression, to rise
To the effect of reinforcing rib；Round punching press impression improves the bending stiffness of tab, internal stress increases, and improves the rigid of tab
Degree, prevents tab from bending in winding process；In addition, tab has good integrality and conveyance capacity after roll-in, no
Influence battery performance；
The utility model solve lithium battery winding link in tab since rigidity is too low, External force interference is easily bent
The problem of, realization prevents tab in winding process from crossing the effect that roller is bent due to unbalance stress；Wherein, tab has structure letter
The characteristics of single, easy to form, significant effect.
Detailed description of the invention
Fig. 1 be the utility model proposes bend resistance coiling type lithium battery tab stereoscopic schematic diagram.
Fig. 2 be the utility model proposes bend resistance coiling type lithium battery tab top view.
Fig. 3 be the utility model proposes bend resistance coiling type lithium battery tab side view.
Specific embodiment
As shown in Figure 1-3, Fig. 1 be the utility model proposes bend resistance coiling type lithium battery tab three-dimensional signal
Figure, Fig. 2 be the utility model proposes bend resistance coiling type lithium battery tab top view, Fig. 3 be the utility model proposes
Bend resistance coiling type lithium battery tab side view.
Referring to Fig.1-3, the utility model proposes a kind of bend resistance coiling type lithium battery tab, including tab ontology 1；
1 surface of tab ontology is uniformly arranged multiple round punching press impressions 2；The diameter of round punching press impression 2 is 2 millimeters, round punching press pressure
Trace 2 is distributed on 1 surface of tab ontology in equilateral triangle arrangement, and the distance of center circle between round punching press impression 2 is 2-3 millimeters, circle
The depth of shape punching press impression 2 is not less than 0.2 millimeter；
In a specific embodiment, round punching press impression 2 is formed using knurling rolls roll-in, and the punching press boss of knurling rolls is half
Hemisphere jut cuts away its top spherical surface to form the punching press boss of horizontal plane.
In the present embodiment, knurling rolls carry out roller processing to tab, and 1 surface of tab ontology forms round punching press impression 2, to rise
To the effect of reinforcing rib；Round punching press impression 2 improves the bending stiffness of tab, internal stress increases, and improves the rigid of tab
Degree, prevents tab from bending in winding process；In addition, tab has good integrality and conveyance capacity after roll-in, no
Influence battery performance；
The present embodiment solve lithium battery winding link in tab since rigidity is too low, External force interference is easily bent
Problem, realization prevent tab in winding process from crossing the effect that roller is bent due to unbalance stress；Wherein, tab has structure letter
The characteristics of single, easy to form, significant effect.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (7)
1. a kind of coiling type lithium battery tab of bend resistance, which is characterized in that including tab ontology (1)；Tab ontology (1) surface
It is uniformly arranged multiple round punching press impressions (2).
2. the coiling type lithium battery tab of bend resistance according to claim 1, which is characterized in that round punching press impression (2)
Diameter be 2 millimeters.
3. the coiling type lithium battery tab of bend resistance according to claim 1, which is characterized in that round punching press impression (2)
Between distance of center circle be 2-3 millimeters.
4. the coiling type lithium battery tab of bend resistance according to claim 1, which is characterized in that round punching press impression (2)
It is distributed on tab ontology (1) surface in equilateral triangle arrangement.
5. the coiling type lithium battery tab of bend resistance according to claim 1, which is characterized in that round punching press impression (2)
Depth be not less than 0.2 millimeter.
6. the coiling type lithium battery tab of bend resistance according to claim 1, which is characterized in that round punching press impression (2)
It is formed using knurling rolls roll-in.
7. the coiling type lithium battery tab of bend resistance according to claim 6, which is characterized in that the punching press boss of knurling rolls
Its punching press boss of top spherical surface to form horizontal plane is cut away for hemispherical projections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820710628.4U CN208368608U (en) | 2018-05-11 | 2018-05-11 | A kind of coiling type lithium battery tab of bend resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820710628.4U CN208368608U (en) | 2018-05-11 | 2018-05-11 | A kind of coiling type lithium battery tab of bend resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208368608U true CN208368608U (en) | 2019-01-11 |
Family
ID=64934406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820710628.4U Active CN208368608U (en) | 2018-05-11 | 2018-05-11 | A kind of coiling type lithium battery tab of bend resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208368608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3961774A1 (en) * | 2020-08-27 | 2022-03-02 | CALB Technology Co., Ltd. | Tab and battery including the tab |
| CN115189099A (en) * | 2022-07-27 | 2022-10-14 | 肇庆小鹏汽车有限公司 | Battery tab and battery |
-
2018
- 2018-05-11 CN CN201820710628.4U patent/CN208368608U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3961774A1 (en) * | 2020-08-27 | 2022-03-02 | CALB Technology Co., Ltd. | Tab and battery including the tab |
| US11705606B2 (en) | 2020-08-27 | 2023-07-18 | Calb Technology Co., Ltd. | Tab and battery including the tab |
| CN115189099A (en) * | 2022-07-27 | 2022-10-14 | 肇庆小鹏汽车有限公司 | Battery tab and battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208226027U (en) | Battery core | |
| CN208368608U (en) | A kind of coiling type lithium battery tab of bend resistance | |
| CN103579684A (en) | Lithium ion battery and battery core thereof | |
| CN105304856A (en) | Preparation method of negative plate of primary lithium battery | |
| CN106252737B (en) | A kind of flexible lithium ion battery | |
| CN215451700U (en) | Battery cell pole piece and battery cell | |
| CN204118183U (en) | The three-dimensional current collector structure of lithium primary battery negative plate | |
| CN201562719U (en) | Cylindrical battery | |
| CN103579683A (en) | Lithium ion battery and battery core thereof | |
| CN105489825B (en) | A kind of manufacturing method of power-type flexible packing lithium ion battery battery core | |
| CN209282294U (en) | A kind of lithium ion battery | |
| CN203312421U (en) | Curved surface type battery | |
| CN205335305U (en) | Cylindricality lithium ion battery | |
| CN218242174U (en) | Pole piece, battery and consumer | |
| CN111244525A (en) | Bullet-shaped battery | |
| CN202423485U (en) | Polymer lithium ion battery with multi-cell parallel structure | |
| CN211789246U (en) | Pole piece structure and battery using same | |
| CN203800137U (en) | Nickel-metal hydride (Ni-MH) battery | |
| CN108172748A (en) | Lug and manufacturing method, the lithium battery and manufacturing method with the lug | |
| CN203690429U (en) | Anode plate winding device for lithium battery plate production machine | |
| CN204793018U (en) | Cylinder lithium battery tab structural design | |
| CN102340036A (en) | High-capacity lithium ion battery | |
| CN106229428A (en) | Battery cathode attachment structure and coiled cylindrical battery | |
| CN203932197U (en) | A kind of lithium ion battery cell | |
| CN202142597U (en) | Internal co-jointed insulating gasket structure for lithium-ion power battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |