CN211556058U - Button type three-electrode device - Google Patents
Button type three-electrode device Download PDFInfo
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- CN211556058U CN211556058U CN202020390267.7U CN202020390267U CN211556058U CN 211556058 U CN211556058 U CN 211556058U CN 202020390267 U CN202020390267 U CN 202020390267U CN 211556058 U CN211556058 U CN 211556058U
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- ring
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- table top
- circular table
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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
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Abstract
The utility model relates to a knot formula three-electrode device, include: the lithium battery comprises a negative electrode mould (10), a first polytetrafluoroethylene sleeve ring (20), a lithium ring (30), a reference mould (40), a negative electrode sheet (50), a diaphragm (60), a positive electrode sheet (70), a second polytetrafluoroethylene sleeve ring (80) and a positive electrode mould (90), wherein the negative electrode mould (10) is provided with a circular table top (11), the first polytetrafluoroethylene sleeve ring (20) is provided with an annular cavity, and the annular cavity is sleeved on the circular table top (11); a lithium ring (30) is arranged on the first polytetrafluoroethylene sleeve ring (20), and the inner diameter of the lithium ring is larger than the diameter of the circular table top (11); the negative electrode plate (50), the diaphragm (60) and the positive electrode plate (70) are sequentially placed on the circular table top (11) through the position of the annular cavity of the reference die (40), fixed through the second polytetrafluoroethylene sleeve ring (80) and covered by the positive electrode die (90).
Description
Technical Field
The utility model relates to a knot formula three-electrode assembly technique especially relates to a knot formula three-electrode device.
Background
In the first charge and discharge process of the lithium ion battery and the lithium ion capacitor, due to the formation of solid electrolyte, a part of lithium ions in the electrolyte are consumed, so that irreversible loss is caused, and the energy density and the cycle life are limited; the lithium is supplemented through the negative electrode, so that the consumption of ions in the electrolyte can be reduced, and the performances of the lithium ion battery and the lithium ion capacitor are effectively improved. Different lithium supplementing modes and different lithium supplementing degrees can generate great influence on the performance of the electrode, and the search for a more convenient, safe and reusable lithium supplementing mode becomes a research hotspot. The button type three-electrode device enables the lithium supplement to be operated in a glove box, and is favorable for the deep research on the lithium supplement degree.
The existing button type three-electrode device is complex in operation, a lithium ring and a diaphragm ring need to be manufactured by self, and the lithium ring is soft in texture and can be damaged once being disassembled and cannot be reused; the diaphragm ring is also complex to manufacture, two punches with different diameters need to be matched, the cutting is easy to slip and the diaphragm is cut, and the manufacturing is difficult; in addition, the whole process of the existing button type three-electrode device is finished in a glove box, and three parts, namely a negative electrode mould, a reference mould and a positive electrode mould, are all disassembled each time the button type three-electrode device is used, internal components are placed in sequence and then the button type three-electrode device is assembled together again. The whole operation process is very difficult to complete in the glove box, the steps are complicated, and the operation process is contrary to the efficient and convenient use requirements of customers.
SUMMERY OF THE UTILITY MODEL
The utility model aims to avoid the use of diaphragm ring, and the lithium ring can realize repeated repetitious usage, and negative pole mould and reference mould can be fixed motionless in addition, do not need repeated dismantlement, mend the lithium at every turn and end, when needing to reuse, only need dismantle anodal mould and can accomplish the change of inner assembly, improved the availability factor that three electrodes mended the lithium device, make loaded down with trivial details operation become simple.
In order to achieve the above object, the utility model provides a knot formula three-electrode device, the device includes: the lithium battery comprises a negative electrode mould, a first polytetrafluoroethylene sleeve ring, a lithium ring, a reference mould, a negative electrode plate, a diaphragm, a positive electrode plate, a second polytetrafluoroethylene sleeve ring and a positive electrode mould, wherein the negative electrode mould is provided with a circular table top, the first polytetrafluoroethylene sleeve ring is provided with an annular cavity, and the annular cavity is sleeved on the circular table top; the lithium ring is placed on the first polytetrafluoroethylene sleeve ring, and the inner diameter of the lithium ring is larger than the diameter of the circular table top; the negative pole piece, the diaphragm and the positive pole piece are sequentially placed on the circular table top through the position of the annular cavity of the reference die, and the second polytetrafluoroethylene sleeve ring is sleeved to fix the pole pieces.
The design of the utility model changes the structural sequence of the existing device, so that the operation of replacing the positive and negative pole pieces can be completed only by disassembling the uppermost positive mould during each lithium supplement, and the negative mould, the reference mould and the positive mould are not required to be disassembled completely; meanwhile, the method does not need a diaphragm ring to prevent the contact short circuit of the lithium ring, thereby avoiding the use of the diaphragm ring; in addition, the reference electrode does not need to be disassembled, so that the lithium ring is not damaged, and the lithium ring can be repeatedly used for multiple times.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of a buckle type three-electrode device provided in an embodiment of the present invention.
In the figure, 10 is a negative electrode mold, 20 is a first polytetrafluoroethylene sleeve, 30 is a lithium ring, 40 is a reference mold, 50 is a negative electrode sheet, 60 is a separator, 70 is a positive electrode sheet, 80 is a second polytetrafluoroethylene sleeve, and 90 is a positive electrode mold.
Detailed Description
Fig. 1 is a schematic structural view of a buckle type three-electrode device provided in an embodiment of the present invention. As shown in fig. 1, the assembly sequence of the device is from bottom to top: the lithium battery comprises a negative electrode mould 10, a first polytetrafluoroethylene sleeve ring 20, a lithium ring 30, a reference mould 40, a negative electrode plate 50, a diaphragm 60, a positive electrode plate 70, a second polytetrafluoroethylene sleeve ring 80 and a positive electrode mould 90, wherein the negative electrode mould 10 is provided with a circular table top 11, the first polytetrafluoroethylene sleeve ring 20 is provided with an annular cavity, and the annular cavity is sleeved on the circular table top 11; the lithium ring 30 is arranged on the first polytetrafluoroethylene sleeve ring 20, and the inner diameter of the lithium ring is larger than the diameter of the circular table top 11; the negative plate 50, the diaphragm 60 and the positive plate 70 are sequentially placed on the circular table top 11 through the position of the annular cavity of the reference mold 40, and sleeved with a second polytetrafluoroethylene sleeve ring 80 for fixing the plates, and finally covered by a positive mold 90 and locked to complete the whole assembly process.
Preferably, the circular table 11 is made of stainless steel metal.
Preferably, the height of the circular table-board 11 is set to be 5-8 mm, and the diameter is set to be 12-15 mm.
Preferably, the height of the annular cavity of the first polytetrafluoroethylene sleeve ring 20 and the second polytetrafluoroethylene sleeve ring 80 is set to be 5-8 mm, the inner diameter is 12.1-15.1 mm, and the outer diameter is 22-26 mm.
Preferably, the height of the lithium ring 30 is less than 0.1mm, the inner diameter of the lithium ring is 16-18 mm, and the outer diameter of the lithium ring is 24-28 mm.
Preferably, the height of the annular cavity of the reference mold 40 is set to be 10-20 mm, the inner diameter is set to be 22.1-26.1 mm, and the outer diameter is set to be 60-65 mm.
Preferably, the height of the positive electrode mold 90 is set to be 10-40 mm, the inner diameter is set to be 22.1-26.1 mm, and the outer diameter is set to be 60-65 mm.
The present embodiment is a structural improvement on the basis of the existing button-type three-electrode device, the negative electrode mold 10 of the base is arranged below, the inner diameter of the lithium ring 30 is larger than the circular table 11, so that the short circuit caused by the contact of the negative electrode sheet 50 and the lithium sheet can be avoided, after the lithium ring 30 is laid flat, the stainless steel reference mold 10 is covered to contact with the lithium ring 30 to compress, fix and lock the reference mold 40 and the negative electrode mold 10 base, and therefore, the assembled components can hardly be disassembled. When the button type three-electrode device is used, the operation process of replacing the negative plate 50, the diaphragm 60 and the positive plate 70 can be realized only by loosening the positive mold 90 and taking down the positive mold 90. The reference die 10 and the negative die 10 do not need to be disassembled, so that the lithium ring 30 is prevented from being damaged, the lithium ring 30 does not need to be manufactured again every time, the repeated utilization of the lithium ring 30 is realized, in addition, the use of a diaphragm ring is saved, and the lithium ion battery is economical and practical and is simple and convenient to operate.
The structure of the buckle type three-electrode device changes the structure sequence of the existing buckle type three-electrode device, so that the operation of replacing the positive and negative pole pieces can be completed only by disassembling the uppermost positive mould every time lithium is replenished, and the negative mould, the reference mould and the positive mould are not required to be disassembled completely; meanwhile, the method does not need a diaphragm ring to prevent the contact short circuit of the lithium ring, thereby avoiding the use of the diaphragm ring; in addition, the reference electrode does not need to be disassembled, so that the lithium ring is not damaged, and the lithium ring can be repeatedly used for multiple times.
It will be obvious that many variations of the present invention are possible without departing from the true spirit and scope of the invention described herein. Accordingly, all changes which would be obvious to one skilled in the art are intended to be included within the scope of this invention as defined by the appended claims. The scope of the invention is to be limited only by the following claims.
Claims (7)
1. A buckle-type three-electrode device, comprising: the lithium battery comprises a negative electrode mould (10), a first polytetrafluoroethylene sleeve ring (20), a lithium ring (30), a reference mould (40), a negative electrode sheet (50), a diaphragm (60), a positive electrode sheet (70), a second polytetrafluoroethylene sleeve ring (80) and a positive electrode mould (90), wherein the negative electrode mould (10) is provided with a circular table top (11), the first polytetrafluoroethylene sleeve ring (20) is provided with an annular cavity, and the annular cavity is sleeved on the circular table top (11); the lithium ring (30) is placed on the first polytetrafluoroethylene sleeve ring (20), and the inner diameter of the lithium ring is larger than the diameter of the circular table top (11); the negative electrode plate (50), the diaphragm (60) and the positive electrode plate (70) are sequentially placed on the circular table top (11) through the position of the annular cavity of the reference die (40), are fixed through the second polytetrafluoroethylene sleeve ring (80) and are covered by the positive electrode die (90).
2. The device according to claim 1, characterized in that the circular table top (11) is made of stainless steel metal.
3. The device according to claim 1, characterized in that the height of the circular table top (11) is set to 5-8 mm and the diameter is set to 12-15 mm.
4. The device according to claim 1, wherein the annular cavities of the first polytetrafluoroethylene sleeve (20) and the second polytetrafluoroethylene sleeve (80) have a height of 5-8 mm, an inner diameter of 12.1-15.1 mm and an outer diameter of 22-26 mm.
5. The device according to claim 1, wherein the lithium ring (30) has a height of less than 0.1mm, an inner diameter of 16-18 mm and an outer diameter of 24-28 mm.
6. The device according to claim 1, characterized in that the height of the annular cavity of the reference die (40) is set to 10-20 mm, the inner diameter is set to 22.1-26.1 mm, and the outer diameter is set to 60-65 mm.
7. The apparatus according to claim 1, wherein the positive electrode mold (90) has a height of 10 to 40mm, an inner diameter of 22.1 to 26.1mm, and an outer diameter of 60 to 65 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020390267.7U CN211556058U (en) | 2020-03-24 | 2020-03-24 | Button type three-electrode device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020390267.7U CN211556058U (en) | 2020-03-24 | 2020-03-24 | Button type three-electrode device |
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| Publication Number | Publication Date |
|---|---|
| CN211556058U true CN211556058U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020390267.7U Active CN211556058U (en) | 2020-03-24 | 2020-03-24 | Button type three-electrode device |
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| CN (1) | CN211556058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280482A (en) * | 2021-12-06 | 2022-04-05 | 上海空间电源研究所 | Full cell and silicon-based material intrinsic cycle stability evaluation method based on full cell |
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2020
- 2020-03-24 CN CN202020390267.7U patent/CN211556058U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280482A (en) * | 2021-12-06 | 2022-04-05 | 上海空间电源研究所 | Full cell and silicon-based material intrinsic cycle stability evaluation method based on full cell |
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Address after: 101318 203, 204, 2 / F, 101, building 1-5, courtyard 3, Xixing Road, Shunyi District, Beijing Patentee after: Beijing Mengjing Graphite New Material Science and Technology Research Institute Co.,Ltd. Address before: A1904, 17th floor, No. 18, chaoyangmenwai street, Chaoyang District, Beijing 100020 Patentee before: Beijing Mengjing Graphite New Material Science and Technology Research Institute Co.,Ltd. |