CN219004811U - Cutting die capable of improving pole piece lug cracking - Google Patents
Cutting die capable of improving pole piece lug cracking Download PDFInfo
- Publication number
- CN219004811U CN219004811U CN202223483723.0U CN202223483723U CN219004811U CN 219004811 U CN219004811 U CN 219004811U CN 202223483723 U CN202223483723 U CN 202223483723U CN 219004811 U CN219004811 U CN 219004811U
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- China
- Prior art keywords
- pole piece
- cutting
- pole
- lug
- blade
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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
Abstract
The utility model relates to a cutting die capable of improving pole piece lug cracking, which comprises a bottom plate and a plurality of blade units arranged on the bottom plate, wherein each blade unit comprises a pole piece cutting blade and a pole lug cutting blade, and the pole piece cutting blade and the pole lug cutting blade enclose a closed and hollow cutting die; wherein, the cutting die structure that the utmost point ear cutting blade encloses is trapezoidal. In the cutting process, the pole piece cutting blade cuts on the pole piece material plate to form a pole piece, the pole lug cutting blade cuts on the pole piece material plate to form a pole lug, and the cutting die structure enclosed by the pole lug cutting blade is trapezoidal, so that the pole lug formed by cutting is also in a trapezoid structure with a narrow upper part and a wide lower part, the contact area of the pole lug and the pole piece is larger, the problem that the contact position of the pole lug and the pole piece is cracked or broken is avoided, and the connection strength of the pole lug and the pole piece is improved.
Description
Technical Field
The utility model relates to the field of die cutting of pole pieces in battery production and processing, in particular to a cutting die capable of improving pole piece lug cracking.
Background
The current automobile power battery mainly uses lamination battery cells, the lamination battery cells are mainly formed by connecting N Zhang Jipian in parallel, N Zhang Jipian is mainly formed by cutting a plurality of pole lugs through a cutter die, fig. 1 is a structural schematic diagram of a traditional cutter die, fig. 2 is a structural schematic diagram of a traditional pole piece, the cutter die mainly comprises a bottom plate 1a and a blade 2a arranged on the bottom plate 1a, the blade 2a is used for cutting pole piece materials to form a pole piece 3a and a pole lug 4a connected with the pole piece 3a, the traditional pole lugs are designed to be rectangular, the root of each pole lug is small in connection area with the pole piece, and the pole lug is easy to break when severe in cracking, so that the internal resistance of the battery cells is affected, and safety accidents are easy to be caused.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a cutting die capable of improving pole piece lug cracking.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a cutting die capable of improving pole piece tab fracture, includes the bottom plate and installs a plurality of blade units on the bottom plate, and the blade unit includes pole piece cutting blade and tab cutting blade, and pole piece cutting blade and tab cutting blade enclose into the confined and hollow cutting die; wherein, the cutting die structure that the utmost point ear cutting blade encloses is trapezoidal.
Further, the pole piece cutting blade and the pole lug cutting blade are formed by bending the blade.
Further, the blade is inlaid on the base plate, and the edge of the blade faces the surface of the base plate.
Further, the number of blade units on the base plate is four.
Further, the cutting die structure enclosed by the pole piece cutting blades is square.
Further, the material of bottom plate is timber, and the material of cutting die is steel.
The beneficial effects of the utility model are as follows: the cutting die is provided with a plurality of blade units, each blade unit comprises a pole piece cutting blade and a pole lug cutting blade, and the pole piece cutting blades and the pole lug cutting blades enclose a closed and hollow cutting die; wherein, the cutting die structure that the utmost point ear cutting blade encloses is trapezoidally, and the in-process of cutting, pole piece cutting blade cut on pole piece material board and form the pole piece, and the utmost point ear cutting blade cuts on pole piece material board and forms the utmost point ear, because the cutting die structure that the utmost point ear cutting blade encloses is trapezoidally, consequently, the utmost point ear that the cutting formed is also narrow down wide trapezium structure, and the contact area ratio of utmost point ear and pole piece is great, has avoided utmost point ear and pole piece contact position to appear the problem of fracture or rupture, has improved the joint strength of utmost point ear and pole piece.
Drawings
FIG. 1 is a schematic diagram of a conventional cutting die;
FIG. 2 is a schematic diagram of a conventional pole piece;
FIG. 3 is a schematic view of a cutting die according to the present utility model;
fig. 4 is a schematic structural diagram of a pole piece obtained by the cutting die processing of the utility model.
Detailed Description
As shown in fig. 3 and 4, a cutting die capable of improving the cracking of pole tabs of pole pieces comprises a bottom plate 1 and a plurality of blade units arranged on the bottom plate 1, wherein each blade unit comprises a pole piece cutting blade 2 and a pole tab cutting blade 3, and the pole piece cutting blade 2 and the pole tab cutting blade 3 enclose a closed and hollow cutting die; wherein, the cutting die structure surrounded by the pole ear cutting blade 3 is trapezoidal.
Further, the pole piece cutting blade 2 and the pole lug cutting blade 3 are formed by bending blades, the blades are inlaid on the bottom plate 1, and the cutting edges of the blades face the surface of the bottom plate.
In this embodiment, the number of blade units on the bottom plate 1 is four, the cutting die structure surrounded by the pole piece cutting blades 2 is square, the material of the bottom plate 1 is wood, and the material of the cutting die is steel.
The cutting die is provided with a plurality of blade units, each blade unit comprises a pole piece cutting blade 2 and a pole lug cutting blade 3, and the pole piece cutting blade 2 and the pole lug cutting blade 3 enclose a closed and hollow cutting die; wherein, the cutting die structure that utmost point ear cutting blade 3 encloses is trapezoidally, and the in-process of cutting, pole piece cutting blade 2 cut on pole piece material board and form pole piece 4, and utmost point ear cutting blade 3 cuts on pole piece material board and form utmost point ear 5, because the cutting die structure that utmost point ear cutting blade 3 encloses is trapezoidally, consequently, the utmost point ear 5 that the cutting formed is also narrow down wide trapezoidally structured, and utmost point ear 5 and pole piece 4's area of contact is bigger, has avoided utmost point ear 5 and pole piece 4 contact position to appear the problem of fracture or rupture, has improved utmost point ear 5 and pole piece 4's joint strength.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The cutting die capable of improving the pole piece and the pole lug cracking comprises a bottom plate and a plurality of blade units arranged on the bottom plate, and is characterized in that the blade units comprise pole piece cutting blades and pole lug cutting blades, and the pole piece cutting blades and the pole lug cutting blades enclose a closed and hollow cutting die; the cutting die structure surrounded by the tab cutting blades is trapezoid.
2. The cutting die capable of improving pole piece lug cracking of claim 1, wherein the pole piece cutting blade and the pole piece cutting blade are formed by bending the blades.
3. The cutting die capable of improving pole piece lug cracking of claim 2, wherein the blade is inlaid on the bottom plate, and the cutting edge of the blade faces the surface of the bottom plate.
4. The cutting die capable of improving pole piece lug cracking of claim 2, wherein the number of blade units on the bottom plate is four.
5. The cutting die capable of improving pole piece lug cracking of claim 2, wherein the cutting die structure surrounded by the pole piece cutting blade is square.
6. The cutting die capable of improving pole piece lug cracking of claim 2, wherein the base plate is made of wood, and the cutting die is made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223483723.0U CN219004811U (en) | 2022-12-27 | 2022-12-27 | Cutting die capable of improving pole piece lug cracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223483723.0U CN219004811U (en) | 2022-12-27 | 2022-12-27 | Cutting die capable of improving pole piece lug cracking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219004811U true CN219004811U (en) | 2023-05-12 |
Family
ID=86243648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223483723.0U Active CN219004811U (en) | 2022-12-27 | 2022-12-27 | Cutting die capable of improving pole piece lug cracking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219004811U (en) |
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2022
- 2022-12-27 CN CN202223483723.0U patent/CN219004811U/en active Active
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