CN108010738B - Super capacitor and production method thereof - Google Patents
Super capacitor and production method thereof Download PDFInfo
- Publication number
- CN108010738B CN108010738B CN201810035377.9A CN201810035377A CN108010738B CN 108010738 B CN108010738 B CN 108010738B CN 201810035377 A CN201810035377 A CN 201810035377A CN 108010738 B CN108010738 B CN 108010738B
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- upper cover
- positive electrode
- negative electrode
- liquid injection
- shell
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- 239000003990 capacitor Substances 0.000 title abstract description 25
- 238000004519 manufacturing process Methods 0.000 title description 5
- 238000002347 injection Methods 0.000 claims abstract description 37
- 239000007924 injection Substances 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000004804 winding Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000003792 electrolyte Substances 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 24
- 239000011888 foil Substances 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract description 2
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 3
- 238000005097 cold rolling Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- IZJSTXINDUKPRP-UHFFFAOYSA-N aluminum lead Chemical compound [Al].[Pb] IZJSTXINDUKPRP-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- -1 copper Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
- H01G11/28—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collector; Layers or phases between electrodes and current collectors, e.g. adhesives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
- H01G11/18—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against thermal overloads, e.g. heating, cooling or ventilating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/66—Current collectors
- H01G11/70—Current collectors characterised by their structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/74—Terminals, e.g. extensions of current collectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/80—Gaskets; Sealings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/82—Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
-
- 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Filling, Topping-Up Batteries (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a supercapacitor, including cavity and one end open-ended casing, set up in the casing electric core and set up on the casing can seal casing open-ended upper cover, the electric core is by negative electrode piece, interior diaphragm, positive electrode piece and outer diaphragm range upon range of winding form in proper order to regard the rolling parcel in the skin of electric core of positive electrode piece electric core that extends along the winding direction protrusion, regard positive electrode piece electric core itself as anodal to draw forth, regard the strip of drawing on the negative electrode piece as the negative pole to draw forth. The positive and negative electrode leading-out mode can effectively avoid the phenomenon that the separator is cut to cause short circuit and the aluminum foil of the current collector is broken to cause multiplication of the resistance of the capacitor, and can greatly reduce the resistance of the super capacitor; meanwhile, the upper cover is provided with the liquid injection hole, the upper cover is sealed by the rubber plug after liquid injection is completed, and the upper cover is welded with the shell, the liquid injection hole and the guide needle by laser, so that electrolyte can be prevented from overflowing from the sealing part, corrosion to the circuit board is avoided, and the reliability of the supercapacitor is improved.
Description
Technical Field
The invention relates to the technical field of capacitors, in particular to a super capacitor and a production method thereof.
Background
At present, the positive electrode and the negative electrode of the conventional guide pin type super capacitor are led out in a guide pin piercing and riveting mode, and sharp edges of aluminum tongues of the guide pins prop against the current collector and the diaphragm during winding, so that the phenomenon that the diaphragm is cut to cause short circuit or aluminum foils of the current collector are broken to cause multiplication of the resistance of the capacitor often occurs.
The conventional supercapacitor current collector is connected only by means of the rivet positions of the guide pins, the contact area is small, the contact resistance is large, the temperature rise of the supercapacitor cell is high in the use process, and the rivet positions are located inside the cell, so that the heat dissipation effect is poor, and the service life of the capacitor is accelerated.
Conventional supercapacitor uses the rubber buffer as the upper cover, and when sealing, the contact gap of plug and aluminum hull can be extruded to the electrolyte, and the cleaning procedure after the assembly can't clear up the electrolyte in the gap, and in the subsequent use, these electrolytes can slowly spill over, and the common supercapacitor electrolyte in market at present uses acetonitrile as solvent more, and acetonitrile can seriously corrode metals such as copper, and after the supercapacitor welds at the PCB board, the electrolyte that overflows will damage other components and parts on the PCB board.
In summary, the supercapacitor structure in the prior art has many drawbacks.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the super capacitor and the production method thereof, which can greatly reduce the internal resistance of the super capacitor, prolong the service life of the super capacitor and improve the reliability of the super capacitor.
The invention adopts the following technical scheme:
the utility model provides a supercapacitor, includes cavity and one end open-ended can electrically conduct casing, sets up the electric core in the casing and sets up on the casing can seal casing open-ended upper cover, the electric core is by negative electrode piece, interior diaphragm, positive electrode piece and outer diaphragm range upon range of winding to the positive electrode piece current collector that extends as the rolling parcel of electric core is in the skin with following the winding direction protrusion, draws forth with positive electrode piece current collector itself as anodal, draws forth with the negative pole that rivets on the negative electrode piece and draws forth as the negative pole.
Further, the tail end of the positive electrode plate protrudes and extends to form a section of white-remaining current collector, and the section of white-remaining current collector is used as a winding package of the battery cell and is wrapped on the outer layer.
Further, the upper cover is provided with a liquid injection hole which penetrates through the upper cover and is communicated with the inside of the shell.
Further, the super capacitor further comprises a rubber plug which is arranged in the liquid injection hole and used for sealing the liquid injection hole.
Further, a boss for clamping the rubber plug is formed at the bottom of the liquid injection hole.
Further, positive and negative electrode lead pins are arranged on the upper cover, the positive electrode lead pin is in conductive connection with the shell through a conductor, and the negative electrode lead pin penetrates through the upper cover and protrudes out of the back surface of the upper cover to form a connector for being electrically connected with the negative electrode lead strip.
Further, the periphery of the upper cover forms a conductive metal edge, an insulating plate is formed inside the metal edge, and the shell and the metal edge of the upper cover can be connected in a conductive and sealing mode through welding.
Further, the positive electrode guide needle is arranged in the liquid injection hole and above the rubber plug, and the positive electrode guide needle can be electrically connected with the shell through a conductor extending from the metal edge to the liquid injection hole.
Further, the side wall of the shell is in conductive connection with the battery cell in a pressing contact mode.
The production method of the super capacitor comprises the following steps:
(1) preparing a battery cell, namely sequentially laminating and winding a negative electrode plate, an inner diaphragm, a positive electrode plate and an outer diaphragm, taking a positive electrode plate current collector which is convexly extended along the winding direction as a winding of the battery cell to wrap the outer layer, preparing the battery cell, taking the positive electrode plate current collector as a positive electrode to be led out, and taking a negative electrode lead bar riveted on the negative electrode plate as a negative electrode to be led out;
(2) placing the battery cell prepared in the step (1) in a shell, electrically connecting a negative electrode lead bar with a negative electrode lead pin joint on the back surface of an upper cover, extruding the shell in a girdling mode to enable the shell to be in conductive contact with the battery cell, covering the upper cover on the shell, and electrically connecting and sealing the upper cover and the shell in a welding mode;
(3) electrolyte is injected from the liquid injection hole, a sealing rubber plug is plugged for sealing, the positive electrode lead is inserted into the liquid injection hole, and the positive electrode lead and the liquid injection hole are welded and sealed;
(4) and (3) filling a bottom gasket at the bottom of the product obtained in the step (3), and sleeving a PET sleeve, thus obtaining the finished product of the supercapacitor.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:
firstly, the positive electrode plate current collector is taken as a positive electrode to be led out, the lead strip riveted on the negative electrode plate is taken as a negative electrode to be led out, the positive electrode is not riveted, the current collector is in extrusion contact with the shell, which is equivalent to taking the shell as the positive electrode and riveting the negative electrode with the lead strip, when the capacity of the capacitor is large, the lead strips can be adopted to be led out, the positive electrode and negative electrode lead-out mode can effectively avoid the phenomena of short circuit caused by cutting of a diaphragm and multiplication of the capacitor resistance caused by breaking of a current collector aluminum foil, and can greatly reduce the resistance of the supercapacitor;
secondly, the current collector of the positive electrode plate is led out as a positive electrode and is contacted with the shell in an extrusion mode, so that the contact area is large, the temperature rise of the super capacitor is low, heat dissipation is easy, and the service life of the super capacitor is greatly prolonged;
thirdly, the upper cover and the shell are sealed through laser welding, a liquid injection hole is formed in the upper cover, after liquid injection is completed, a rubber plug is plugged in for sealing, then a positive electrode lead needle is inserted, and the positive electrode lead needle and the liquid injection hole are subjected to laser welding, so that the possibility that electrolyte overflows from a sealing position is eliminated, corrosion to a circuit board is avoided, and the reliability of the supercapacitor is improved;
in a word, the invention has reasonable structure, greatly reduces the internal resistance of the super capacitor, prolongs the service life of the super capacitor and improves the reliability of the super capacitor.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a sealing structure of a liquid injection hole according to an embodiment of the present invention;
FIG. 3 is a schematic view of a winding structure of a battery cell according to an embodiment of the present invention;
fig. 4 is a schematic view showing a split structure of an upper cover according to an embodiment of the present invention.
In the figure: 1. the battery comprises a shell, a battery cell, a top cover, an aluminum edge, an insulating plate, a liquid injection hole, a boss, a rubber plug, a positive electrode pin, a negative electrode pin, an aluminum stem, an aluminum washer, an aluminum boss, an aluminum washer, an aluminum branch, a negative electrode plate, an inner diaphragm, a positive electrode plate, a white current collector, an outer diaphragm, an anode lead, a bottom gasket and a PET sleeve.
Detailed Description
The invention is further described below by means of specific embodiments.
Referring to fig. 1 to 4, the super capacitor of the present invention includes a hollow conductive housing 1 with one end opened, a battery cell 2 disposed in the housing 1, and an upper cover 3 disposed on the housing 1 and capable of closing the opening of the housing 1. The shell 1 is an aluminum shell.
The battery cell 2 is formed by overlapping and winding a negative electrode sheet 4, an inner diaphragm 5, a positive electrode sheet 6 and an outer diaphragm layer 7 in sequence, a section of white-remaining current collector 60 is formed by protruding and extending at the tail end of the positive electrode sheet 6, the white-remaining current collector 60 of the positive electrode sheet 6 protruding and extending along the winding direction is taken as the winding of the battery cell 2 to wrap the outer layer, the white-remaining current collector 60 of the positive electrode sheet 6 is taken as the positive electrode to be led out, and a negative electrode lead 8 riveted on the negative electrode sheet 4 is taken as the negative electrode to be led out. The slurry on the specific position of the negative electrode sheet 4 is scraped off for riveting the negative electrode lead 8. The negative electrode lead 8 is one or a plurality of strips which are arranged on the same diameter of the round section of the battery cell 2. The number of the negative electrode lead 8 is increased or decreased according to the capacitance of the supercapacitor, and the negative electrode lead 8 is an aluminum lead.
The upper cover 3 is formed with an annular aluminum edge 30 along the periphery, an insulating plate 31 is formed inside the aluminum edge 30, and the shell 1 and the aluminum edge 30 of the upper cover 3 can be connected in a conductive manner and sealed in a laser welding mode.
The upper cover 3 is provided with a liquid injection hole 32 which is arranged through the upper cover 3 and communicated with the inside of the shell 1, and a rubber plug 33 for sealing the liquid injection hole 32 is arranged in the liquid injection hole 32. A boss 320 for clamping the rubber stopper 33 is formed at the bottom of the liquid injection hole 32. The upper cover 3 is provided with a positive electrode lead 34 and a negative electrode lead 35, the negative electrode lead 35 penetrates through the upper cover 3 and protrudes out of the back surface of the upper cover 3 to form an aluminum stem 350 for electrically connecting with the negative electrode lead 8, and the negative electrode lead 8 is connected with the aluminum stem 350 of the negative electrode lead 35 through cold rolling of an aluminum washer 36. The positive electrode lead 34 is disposed in the liquid injection hole 32 and above the rubber plug 33, the positive electrode lead 34 is not in direct contact with the capacitor cell 2, and the positive electrode lead 34 can be electrically connected with the housing 1 through an aluminum branch 37 extending from the aluminum edge 30 into the liquid injection hole 32.
The shell 1 is a cylindrical aluminum shell, and is connected with the battery core 2 in a conductive manner in a manner of extrusion contact by binding through a plurality of rollers. The beam waist depth of the shell 1 comprehensively considers the influences of the diameter of the battery cell 2, the inner diameter of the shell 1, the contact resistance, the deformation degree of the shell 1, the attractive appearance and the like. The explosion-proof valve is arranged at the bottom of the shell 1, and a bayonet corresponding to the diameter of the upper cover 3 is arranged at the opening of the upper end of the shell 1 and used for matching with the upper cover 3, so that the subsequent laser welding process is conveniently completed.
Referring to fig. 1 to 4, the super capacitor of the present invention is produced by:
(1) preparing a battery cell 2, sequentially laminating and winding a negative electrode sheet 4, an inner diaphragm 5, a positive electrode sheet 6 and an outer diaphragm 7, taking a positive electrode sheet 6 current collector which is protruded and extended along the winding direction as a winding of the battery cell 2 to wrap the outer layer, preparing the battery cell 2, taking the positive electrode sheet 6 current collector as a positive electrode to be led out, and taking a negative electrode lead 8 riveted on the negative electrode sheet 4 as a negative electrode to be led out;
(2) placing the battery cell 2 prepared in the step (1) in a shell 1, cold-rolling a negative electrode lead 8 and a negative electrode lead 35 aluminum stem 350 on the back surface of an upper cover 3 through an aluminum washer 36, then girdling the shell 1 through a multi-roll girdling wheel, covering the upper cover 3 on the shell 1, and welding an aluminum edge 30 of the upper cover 3 with the shell 1 through laser welding;
(3) electrolyte is injected from the liquid injection hole 32, a sealing rubber plug 33 is plugged into a boss 320 of the liquid injection hole 32, the positive electrode lead 34 is inserted into the liquid injection hole 32, and laser welding is carried out on the positive electrode lead 34 and the liquid injection hole 32;
(4) and (3) filling a bottom gasket 9 at the bottom of the product obtained in the step (3), and sleeving a PET sleeve 10 to obtain the finished product of the supercapacitor.
The above is only one specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, such as replacing the lead pin with a welding pin or a welding tab, arranging multiple lead ends on the upper cover, or changing the lead-out positions of the positive and negative electrodes of the liquid injection hole, and any insubstantial modification of the present invention by using the concept shall belong to the behavior of infringeing the protection scope of the present invention.
Claims (3)
1. The utility model provides a supercapacitor, but including cavity and one end open-ended electrically conductive casing, set up electric core in the casing and set up on the casing and can seal casing open-ended upper cover, its characterized in that: the battery cell is formed by stacking and winding a negative electrode plate, an inner diaphragm, a positive electrode plate and an outer diaphragm in sequence, the positive electrode plate current collector which is protruded and extended along the winding direction is taken as the winding of the battery cell to wrap the outer layer, the positive electrode plate current collector is taken as a positive electrode to be led out, and a negative electrode lead bar riveted on the negative electrode plate is taken as a negative electrode to be led out; the tail end of the positive electrode plate protrudes and extends to form a section of white-remaining current collector which is taken as a winding package of the battery cell and is arranged on the outer layer; the upper cover is provided with an anode lead pin and a cathode lead pin, the anode lead pin is in conductive connection with the shell through a conductor, and the cathode lead pin penetrates through the upper cover and protrudes out of the back surface of the upper cover to form a connector for being electrically connected with the cathode lead strip; the periphery of the upper cover forms a conductive metal edge, an insulating plate is formed inside the metal edge, and the shell and the metal edge of the upper cover can be electrically conductive and connected in a sealing manner in a welding manner; the upper cover is provided with a liquid injection hole which penetrates through the upper cover and is communicated with the inside of the shell; a rubber plug for sealing the liquid injection hole is arranged in the liquid injection hole; the positive electrode guide needle is arranged in the liquid injection hole and above the rubber plug, and can be electrically connected with the shell through a conductor extending from the metal edge into the liquid injection hole; the side wall of the shell is in conductive connection with the battery cell in a pressing contact mode.
2. A supercapacitor as defined in claim 1, wherein: the bottom of the liquid injection hole is provided with a boss for clamping the rubber plug.
3. A method of producing the supercapacitor of any one of claims 1 to 2, wherein: the method comprises the following steps:
(1) preparing a battery cell, namely sequentially laminating and winding a negative electrode plate, an inner diaphragm, a positive electrode plate and an outer diaphragm, taking a positive electrode plate current collector which is convexly extended along the winding direction as a winding of the battery cell to wrap the outer layer, preparing the battery cell, taking the positive electrode plate current collector as a positive electrode to be led out, and taking a negative electrode lead bar riveted on the negative electrode plate as a negative electrode to be led out;
(2) placing the battery cell prepared in the step (1) in a shell, electrically connecting a negative electrode lead bar with a negative electrode lead pin joint on the back surface of an upper cover, extruding the shell in a girdling mode to enable the shell to be in conductive contact with the battery cell, covering the upper cover on the shell, and electrically connecting and sealing the upper cover and the shell in a welding mode;
(3) electrolyte is injected from the liquid injection hole, a sealing rubber plug is plugged for sealing, the positive electrode lead is inserted into the liquid injection hole, and the positive electrode lead and the liquid injection hole are welded and sealed;
(4) and (3) filling a bottom gasket at the bottom of the product obtained in the step (3), and sleeving a PET sleeve, thus obtaining the finished product of the supercapacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810035377.9A CN108010738B (en) | 2018-01-15 | 2018-01-15 | Super capacitor and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810035377.9A CN108010738B (en) | 2018-01-15 | 2018-01-15 | Super capacitor and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108010738A CN108010738A (en) | 2018-05-08 |
| CN108010738B true CN108010738B (en) | 2023-10-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810035377.9A Active CN108010738B (en) | 2018-01-15 | 2018-01-15 | Super capacitor and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108010738B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110349755A (en) * | 2019-07-09 | 2019-10-18 | 南通江海储能技术有限公司 | A kind of winding type super capacitor |
| CN111463025A (en) * | 2020-02-28 | 2020-07-28 | 肇庆绿宝石电子科技股份有限公司 | Welding method of supercapacitor with low internal resistance |
| CN112185713B (en) * | 2020-09-29 | 2021-11-23 | 浙江微创新能源有限公司 | Assembly process of super capacitor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004263255A (en) * | 2003-03-03 | 2004-09-24 | Kawatetsu Mining Co Ltd | Surface-treated superfine metal powder, its production method, conductive metal paste, and laminated ceramic capacitor |
| CN101694815A (en) * | 2009-10-16 | 2010-04-14 | 中国船舶重工集团公司第七一二研究所 | Thin-type soft packaging super capacitor |
| CN202394721U (en) * | 2011-12-09 | 2012-08-22 | 深圳市今朝时代新能源技术有限公司 | Low-internal resistance cylindrical supercapacitor |
| CN204155765U (en) * | 2014-10-21 | 2015-02-11 | 江苏捷峰高科能源材料股份有限公司 | A kind of high tension super capacitor |
| CN207302884U (en) * | 2017-09-13 | 2018-05-01 | 东莞凯德新能源有限公司 | A kind of cylinder high-power lithium ion capacitor |
-
2018
- 2018-01-15 CN CN201810035377.9A patent/CN108010738B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004263255A (en) * | 2003-03-03 | 2004-09-24 | Kawatetsu Mining Co Ltd | Surface-treated superfine metal powder, its production method, conductive metal paste, and laminated ceramic capacitor |
| CN101694815A (en) * | 2009-10-16 | 2010-04-14 | 中国船舶重工集团公司第七一二研究所 | Thin-type soft packaging super capacitor |
| CN202394721U (en) * | 2011-12-09 | 2012-08-22 | 深圳市今朝时代新能源技术有限公司 | Low-internal resistance cylindrical supercapacitor |
| CN204155765U (en) * | 2014-10-21 | 2015-02-11 | 江苏捷峰高科能源材料股份有限公司 | A kind of high tension super capacitor |
| CN207302884U (en) * | 2017-09-13 | 2018-05-01 | 东莞凯德新能源有限公司 | A kind of cylinder high-power lithium ion capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108010738A (en) | 2018-05-08 |
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