CN212598421U - Pole lug shaping device before rubbing and flattening for cylindrical lithium ion roll core full pole lug - Google Patents
Pole lug shaping device before rubbing and flattening for cylindrical lithium ion roll core full pole lug Download PDFInfo
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- CN212598421U CN212598421U CN202020668559.2U CN202020668559U CN212598421U CN 212598421 U CN212598421 U CN 212598421U CN 202020668559 U CN202020668559 U CN 202020668559U CN 212598421 U CN212598421 U CN 212598421U
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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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Abstract
The utility model discloses a pole ear shaping device before the cylinder lithium ion roll core full pole ear is rubbed and leveled, which comprises a funnel-shaped whole groove, a forming groove connected with a conical smaller port of the whole groove, a ring groove movably spliced with the forming groove and a punch head for pushing the pole ear to move along the central axis direction of the whole groove and gradually reduce the outer diameter; the circumferential direction of the conical larger end of the shaping groove is provided with a positioning groove for accommodating the pole lug, and the joint of the positioning groove and the inner wall of the shaping groove is provided with an arc-shaped surface. The utility model discloses a utmost point ear plastic targets in place, improves the follow-up flat fine and close effect of rubbing.
Description
Technical Field
The utility model belongs to the technical field of cylinder lithium ion battery, especially, relate to a cylinder lithium ion rolls up full utmost point ear of core with rubbing utmost point ear shaping device before flat.
Background
At present, positive and negative pole pieces are all cylindrical aluminum shell lithium ion batteries with full-lug designs, and when the lithium ion batteries are assembled, respective lugs need to be rubbed flatly by ultrasonic waves to be compact, so that a metal current collecting disc of positive and negative pole cover plates is welded by laser in a later process, but the condition that the lug is not rubbed or rubbed flatly cannot be achieved exists in the outermost layer of the cylindrical winding core, the problem that the lug is exposed out of a lug insulating adhesive tape occurs, a short circuit is directly contacted with a metal aluminum shell of the battery, and the short circuit risk and the electrochemical corrosion quality problem of aluminum-aluminum alloy of a negative pole are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem, and provide cylinder lithium ion and roll up the complete utmost point ear of core with rubbing utmost point ear shaping device before flat to realize utmost point ear plastic and target in place, improve follow-up flat fine and close effect of rubbing. In order to achieve the above purpose, the utility model discloses technical scheme as follows:
the pole lug shaping device comprises a funnel-shaped whole-shaped groove, a forming groove connected with a conical smaller port of the whole-shaped groove, an annular groove movably spliced with the forming groove, and a punch head for pushing the pole lug to move along the central axis direction of the shaping groove and gradually reducing the outer diameter; the circumference of the conical larger end of the shaping groove is provided with a positioning groove for accommodating the pole lug, and the joint of the positioning groove and the inner wall of the shaping groove is provided with an arc-shaped surface.
Specifically, the forming groove is of a circular ring structure, and the forming groove and the shaping groove are integrally formed.
Specifically, the diameter of the forming groove is consistent with the diameter of the conical smaller end of the whole groove.
Specifically, the diameter of the annular groove is consistent with that of the forming groove.
Specifically, a plurality of grooves are formed in the circumferential direction of the outer end of the forming groove, and convex portions which are correspondingly inserted into the grooves are formed in the circumferential direction of the annular groove.
Compared with the prior art, the beneficial effects of the utility model are mainly embodied in that:
the funnel-shaped shaping groove is arranged, so that the tab is effectively shaped, the tab is ensured to be good in smoothness in subsequent kneading and flattening operation, the problem of edge warping is avoided, and the kneading and flattening compact effect is ensured; the arc-shaped surface is arranged at the positioning groove, so that the initial position of the tab is ensured not to deviate from the central axis of the whole groove, and the stress position of the punch is accurate; set up removable ring channel, except effectively with utmost point ear and shaping groove separation, still have the effect of secondary design utmost point ear direction, guarantee the fashioned accuracy of size.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
the figures in the drawings represent:
1 whole groove, 2 shaping grooves, 3 annular grooves, 31 convex parts, 4 tabs, 5 punches, 6 positioning grooves and 61 arc-shaped surfaces.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments.
Example (b):
referring to fig. 1, the present embodiment is a tab shaping device before flattening for a cylindrical lithium ion winding core full tab, which includes a funnel-shaped shaping groove 1, a forming groove 2 connected with a conical smaller port of the shaping groove 1, an annular groove 3 movably inserted into the forming groove 2, and a punch 5 for pushing a tab 4 to move along a central axis direction of the shaping groove 1 to gradually reduce an outer diameter; the circumferential direction of the conical larger end of the shaping groove 3 is provided with a positioning groove 6 for accommodating the tab 4, and the joint of the positioning groove 6 and the inner wall of the shaping groove 3 is provided with an arc surface 61.
The forming groove 2 is of a circular ring structure, the forming groove 2 and the shaping groove 1 are integrally formed, and the diameter of the forming groove 2 is consistent with that of the conical small port of the shaping groove 1.
The diameter of the annular groove 3 is consistent with that of the forming groove 2, a plurality of grooves (marked in the figure) are circumferentially arranged at the outer end of the forming groove 2, and convex parts 31 which are correspondingly inserted into the grooves are circumferentially arranged on the annular groove 3.
The shaping groove 1, the forming groove 2 and the annular groove 3 are made of Teflon or polyolefin high polymer materials or metal stainless steel materials and have the characteristics of corrosion resistance and high temperature resistance.
When using this embodiment, lithium ion core utmost point ear carries out the plastic in advance before the flat technology is rubbed to the ultrasonic wave, places utmost point ear 4 in constant head tank 6, and drift 5 promotes utmost point ear 4 and warp along plastic groove 1, through shaping groove 2, arranges annular groove 3 in at last in, through demolising annular groove 3, effectively separates utmost point ear 4 and shaping groove 2, avoids the unable problem of deviating from of inlay card.
In the embodiment, the funnel-shaped shaping groove 1 is arranged to effectively shape the tab 4, so that the tab 4 is ensured to have good smoothness and no raised edge in the subsequent kneading and flattening operation, and the kneading and flattening compact effect is ensured; the arc surface 61 is arranged at the positioning groove 6, so that the initial position of the tab 4 is ensured not to deviate from the central axis of the whole groove 1, and the stress position of the punch 5 is accurate; set up removable ring channel 3, except effectively with utmost point ear 4 and the separation of shaping groove 2, still have the effect of the 4 direction of secondary design utmost point ear, guarantee the fashioned accuracy of size.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (5)
1. Cylinder lithium ion rolls up whole utmost point ear with rubbing utmost point ear shaping device before flat, its characterized in that: the device comprises a funnel-shaped shaping groove, a forming groove connected with a conical smaller port of the shaping groove, an annular groove movably inserted with the forming groove, and a punch for pushing a lug to move along the central axis direction of the shaping groove to gradually reduce the outer diameter; the circumference of the conical larger end of the shaping groove is provided with a positioning groove for accommodating the pole lug, and the joint of the positioning groove and the inner wall of the shaping groove is provided with an arc-shaped surface.
2. The cylindrical lithium ion jelly roll full-lug shaping device before flattening as claimed in claim 1, is characterized in that: the forming groove is of a circular ring structure, and the forming groove and the shaping groove are integrally formed.
3. The cylindrical lithium ion jelly roll full-lug shaping device before flattening as claimed in claim 1, is characterized in that: the diameter of the forming groove is consistent with that of the conical smaller end of the whole groove.
4. The cylindrical lithium ion jelly roll full-lug shaping device before flattening as claimed in claim 1, is characterized in that: the diameter of the annular groove is consistent with that of the forming groove.
5. The cylindrical lithium ion jelly roll full-lug shaping device before flattening as claimed in claim 1, is characterized in that: the outer end circumference of shaping groove is equipped with a plurality of recesses, the circumference of ring channel is equipped with the convex part of pegging graft corresponding with the recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020668559.2U CN212598421U (en) | 2020-04-27 | 2020-04-27 | Pole lug shaping device before rubbing and flattening for cylindrical lithium ion roll core full pole lug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020668559.2U CN212598421U (en) | 2020-04-27 | 2020-04-27 | Pole lug shaping device before rubbing and flattening for cylindrical lithium ion roll core full pole lug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212598421U true CN212598421U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020668559.2U Active CN212598421U (en) | 2020-04-27 | 2020-04-27 | Pole lug shaping device before rubbing and flattening for cylindrical lithium ion roll core full pole lug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212598421U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113735A (en) * | 2021-04-16 | 2021-07-13 | 惠州亿纬锂能股份有限公司 | Kneading and flattening device |
| CN114523018A (en) * | 2022-02-18 | 2022-05-24 | 湖南时代联合新能源有限公司 | Electricity core mass flow body terminal surface leveling device |
| WO2023160707A1 (en) * | 2022-02-28 | 2023-08-31 | 宁德时代新能源科技股份有限公司 | Tab flattening device |
-
2020
- 2020-04-27 CN CN202020668559.2U patent/CN212598421U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113735A (en) * | 2021-04-16 | 2021-07-13 | 惠州亿纬锂能股份有限公司 | Kneading and flattening device |
| CN114523018A (en) * | 2022-02-18 | 2022-05-24 | 湖南时代联合新能源有限公司 | Electricity core mass flow body terminal surface leveling device |
| WO2023160707A1 (en) * | 2022-02-28 | 2023-08-31 | 宁德时代新能源科技股份有限公司 | Tab flattening device |
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Address after: No.100 Yuanfeng Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Shanghai Electric GuoXuan new energy technology (Suzhou) Co.,Ltd. Address before: No.100 Yuanfeng Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: GUOXUAN NEW ENERGY (SUZHOU) Co.,Ltd. |