CN211045590U - Indentation device for battery cell pole piece - Google Patents
Indentation device for battery cell pole piece Download PDFInfo
- Publication number
- CN211045590U CN211045590U CN201922213490.4U CN201922213490U CN211045590U CN 211045590 U CN211045590 U CN 211045590U CN 201922213490 U CN201922213490 U CN 201922213490U CN 211045590 U CN211045590 U CN 211045590U
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- China
- Prior art keywords
- pole piece
- indentation device
- top board
- cell pole
- electric core
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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 discloses an electricity core pole piece indentation device, including the lower plate, there is the top board guide bar swing joint in the top of lower plate, the top board is followed the guide bar slides from top to bottom, the lower plate with the cover is equipped with elastic connection spare on the guide bar between the top board, set firmly the arch that is used for extruding the vestige to electric core pole piece on the bottom surface of top board, the protruding smooth hemisphere of evenly arranging. The utility model provides an electric core pole piece indentation device adopts the arch through the top board bottom surface before convoluteing to extrude the indent with electric core pole piece, makes tension between the electric core pole piece after convoluteing diminish, avoids too big because of the tension between the electric core pole piece, leads to forming the fold between the pole piece after charging and discharging to arouse the problem of falling the material.
Description
Technical Field
The utility model relates to a lithium cell field of making especially relates to an electricity core pole piece indentation device.
Background
At present, the air pollution is more serious, wherein the exhaust emission of automobiles is a big factor, so the country strongly supports the development of new energy technology, and the transformation of fuel automobiles to new energy automobiles becomes a necessary trend, so that the core of the new energy automobiles, namely a power battery, is rapidly developed. The new energy automobile generally selects a lithium ion battery as a power battery, particularly a square lithium battery.
In the production and manufacturing process of the lithium battery, the cell pole pieces are compacted, charged, formed and divided after being wound, and due to the fact that tension between the cell pole pieces is too large, after charging and discharging, wrinkles are easily formed between the cell pole pieces, and material falling is caused.
Disclosure of Invention
The utility model aims at providing an electric core pole piece indentation device to solve among the prior art because the tension between the electric core pole piece is too big, form the fold between the electric core pole piece that leads to after the process is charged and discharged, thereby arouse the problem of falling the material.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an electricity core pole piece indentation device, includes the lower plate, there is the top board the top of lower plate through guide bar swing joint, the top board can be followed the guide bar slides from top to bottom, the lower plate with the cover is equipped with elastic connection spare on the guide bar between the top board, set firmly the arch that is used for electric core pole piece extrusion vestige on the bottom surface of top board, protruding smooth hemisphere for evenly arranging.
And the top surface of the lower base plate is fixed with an emulsion pad, so that the damage of the battery cell pole piece under the action of the raised pressure can be prevented.
And the upper pressure plate is provided with a through hole for penetrating the guide rod.
The top surface of the upper pressure plate is fixedly provided with a fixed block sleeved on the guide rod through threads, and the top surface of the upper pressure plate is also fixedly provided with a handle.
The upper end of the guide rod is in threaded connection with a nut, and the nut can limit the upward sliding range of the upper pressure plate.
The elastic connecting piece is a spring.
Has the advantages that: the utility model provides an electric core pole piece indentation device adopts the arch through the top board bottom surface before convoluteing to extrude the pole piece dent, makes tension between the electric core pole piece after convoluteing diminish, avoids too big because of the tension between the electric core pole piece, leads to forming the fold between the electric core pole piece after charging and discharging to arouse the problem of falling the material.
Drawings
Figure 1 is a using state diagram of the utility model,
figure 2 is a schematic view of the overall structure of the utility model,
figure 3 is a front view of figure 2,
fig. 4 is a schematic view of the overall structure of the upper pressing plate of the present invention.
In the figure: 1 electric core pole piece indentation device, 2 reel, 3 reels, 4 top board, 5 fixed blocks, 6 guide bars, 7 handles, 8 nuts, 9 springs, 10 latex pads, 11 lower plate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
The embodiment of the application provides a battery cell pole piece indentation device, has solved among the prior art because the tension between the battery cell pole piece is too big, leads to forming the fold between the pole piece after charging and discharging to arouse the problem of falling the material.
Referring to fig. 1-4, the utility model provides an electric core pole piece indentation device, including top board 4, lower plate 11 and guide bar 6, wherein:
referring to fig. 2-4, an upper pressing plate 4 is movably connected above a lower base plate 11 through a guide rod 6, the upper pressing plate 4 slides up and down along the guide rod 6, an elastic connecting piece is sleeved on the guide rod 6 between the lower base plate 11 and the upper pressing plate 4, a bulge 4-1 for pressing marks on a battery cell pole piece is fixedly arranged on the bottom surface of the upper pressing plate 4, and the bulge 4-1 is a smooth hemisphere shape which is uniformly distributed; the battery cell pole piece penetrates through the space between the upper pressing plate 4 and the lower bottom plate, when downward pressure is applied to the upper pressing plate 4, the upper pressing plate 4 can downwards extrude the elastic connecting piece along the guide rod 6 until the bulge 4-1 generates pressure on the battery cell pole piece to generate indentation on the battery cell pole piece, the pressure application to the upper pressing plate 4 is stopped, and the upper pressing plate 4 is restored to the original shape under the elastic action of the elastic connecting piece; the indentation produced on the battery cell pole piece reduces the tension between the battery cell pole pieces after winding, and avoids the problem that the battery cell pole pieces are wrinkled after charging and discharging due to overlarge tension between the battery cell pole pieces, thereby causing material falling.
The latex pad 10 is fixed on the top surface of the lower bottom plate 11, and the latex pad 10 can prevent the cell pole piece from being damaged under the pressure action of the upper bulge 4-1; the upper pressure plate 4 is provided with a through hole 4-2 for the guide rod 6 to penetrate through; a fixed block 5 sleeved on the guide rod 6 is fixed on the top surface of the upper pressing plate 4 through threads, and a handle 7 is also fixed on the top surface of the upper pressing plate 4; the upper end of the guide rod 6 is in threaded connection with a nut 8, and the nut 8 can limit the upward sliding range of the upper pressure plate 4; the elastic connecting piece is a spring 9.
Referring to fig. 1-4, a cell pole piece indentation device 1 is located between an unwinding cylinder 2 and a winding cylinder 3, and a cell pole piece is unwound from the lower end surface of the unwinding cylinder 2, penetrates between an upper pressing plate 4 and a lower bottom plate, and is wound up from the lower end surface of the winding cylinder 3 to the upper end surface; when downward pressure is applied to the upper pressing plate 4, the upper pressing plate 4 can downwards extrude the spring 9 along the guide rod 6 until the bulge 4-1 generates pressure on the battery cell pole piece to generate an indentation on the battery cell pole piece, the pressure applied to the upper pressing plate 4 is stopped, and the upper pressing plate 4 is restored to the original state under the action of the elastic force of the spring; the indentation produced on the battery cell pole piece reduces the tension between the battery cell pole pieces after winding, and avoids the problem that the battery cell pole pieces are wrinkled after charging and discharging due to overlarge tension between the battery cell pole pieces, thereby causing material falling.
The pressure on the upper pressure plate 4 can be applied manually or can be controlled automatically by a controller, and the two modes are conventional control modes in the field, are not the invention points of the device and are not described in detail herein.
The utility model provides an electricity core pole piece indentation device adopts the arch through the top board bottom surface before convoluteing to extrude the pole piece dent, makes tension between the pole piece after convoluteing diminish, avoids too big because of the tension between the electric core pole piece, leads to forming the fold between the pole piece after the process is charged and discharged to arouse the problem of falling the material.
Claims (6)
1. The utility model provides a battery core pole piece indentation device which characterized in that: including lower plate (11), there are top board (4) in the top of lower plate (11) through guide bar (6) swing joint, top board (4) are followed slide from top to bottom guide bar (6), lower plate (11) with the cover is equipped with elastic connection spare on guide bar (6) between top board (4), set firmly arch (4-1) that is used for pressing out the vestige to pole piece electricity core on the bottom surface of top board (4), protruding (4-1) is the smooth hemisphere of evenly arranging.
2. The cell pole piece indentation device of claim 1, wherein: and an emulsion pad (10) is fixed on the top surface of the lower bottom plate (11).
3. The cell pole piece indentation device of claim 1, wherein: the upper pressure plate (4) is provided with a through hole (4-2) for the guide rod (6) to penetrate through.
4. The cell pole piece indentation device of claim 1, wherein: the top surface of the upper pressing plate (4) is fixedly provided with a fixing block (5) sleeved on the guide rod (6) through threads, and the top surface of the upper pressing plate (4) is also fixedly provided with a handle (7).
5. The cell pole piece indentation device of claim 1, wherein: the upper end of the guide rod (6) is in threaded connection with a nut (8).
6. The cell pole piece indentation device of claim 1, wherein: the elastic connecting piece is a spring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922213490.4U CN211045590U (en) | 2019-12-11 | 2019-12-11 | Indentation device for battery cell pole piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922213490.4U CN211045590U (en) | 2019-12-11 | 2019-12-11 | Indentation device for battery cell pole piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211045590U true CN211045590U (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922213490.4U Active CN211045590U (en) | 2019-12-11 | 2019-12-11 | Indentation device for battery cell pole piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211045590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116609493A (en) * | 2023-07-21 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Indentation detection method, laminated cell manufacturing method and device and electronic equipment |
-
2019
- 2019-12-11 CN CN201922213490.4U patent/CN211045590U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116609493A (en) * | 2023-07-21 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Indentation detection method, laminated cell manufacturing method and device and electronic equipment |
| CN116609493B (en) * | 2023-07-21 | 2023-09-22 | 宁德时代新能源科技股份有限公司 | Indentation detection method, laminated cell manufacturing method and device and electronic equipment |
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