CN111696789A - Laminated super capacitor and manufacturing method thereof - Google Patents
Laminated super capacitor and manufacturing method thereof Download PDFInfo
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- CN111696789A CN111696789A CN202010589300.3A CN202010589300A CN111696789A CN 111696789 A CN111696789 A CN 111696789A CN 202010589300 A CN202010589300 A CN 202010589300A CN 111696789 A CN111696789 A CN 111696789A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000003990 capacitor Substances 0.000 title abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 102
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 102
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000011148 porous material Substances 0.000 claims abstract description 14
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 13
- 239000003792 electrolyte Substances 0.000 claims abstract description 11
- 238000011049 filling Methods 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000006260 foam Substances 0.000 claims description 21
- 239000013543 active substance Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 11
- 239000011149 active material Substances 0.000 claims description 6
- 229910021389 graphene Inorganic materials 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 238000001020 plasma etching Methods 0.000 claims description 3
- 238000005019 vapor deposition process Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 1
- 238000004146 energy storage Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 230000010354 integration Effects 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- 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
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- 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
-
- 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
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- 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
-
- 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
- H01G11/30—Electrodes characterised by their material
-
- 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
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
-
- 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
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a laminated super capacitor and a manufacturing method thereof, wherein the super capacitor comprises at least two stacked foamed aluminum pole pieces, wherein the inner pores of the foamed aluminum pole pieces are filled with dielectric hole type activated carbon fibers, the outer side surface of each foamed aluminum pole piece is provided with a tab, a diaphragm is arranged between every two adjacent foamed aluminum pole pieces, the outer sides of all the foamed aluminum pole pieces are provided with binding parts, the outer sides of all the foamed aluminum pole pieces are surrounded with a shell, and electrolyte is filled in the shell. Rolling and compacting one outer side surface of a foamed aluminum pole piece to form a pole lug; filling mesoporous activated carbon fibers into pores of the foamed aluminum pole piece and drying; the foamed aluminum pole pieces are stacked together, and adjacent foamed aluminum pole pieces are separated by using a diaphragm; binding all the foamed aluminum pole pieces and putting the bound foamed aluminum pole pieces into a shell; filling electrolyte into the shell and vacuum sealing. The super capacitor and the manufacturing method thereof have the advantages that on the basis of small size, the super capacitor has high capacity and high power density, and the production cost is reduced.
Description
Technical Field
The invention belongs to the technical field of energy storage equipment, and particularly relates to a laminated super capacitor and a manufacturing method thereof.
Background
The super capacitor is used as an energy storage element, is widely applied to the fields of energy, automobiles, medical treatment, health, electronics, military and the like, and has the characteristics of short charging time, long service life, good temperature characteristic, energy conservation and environmental protection. In recent years, with new concepts such as high integration, light weight, portability, wearable type, implantable type and the like, flexible and intelligent electronic products continuously appear, and a micro-nano energy storage device which is highly compatible with the flexible and intelligent electronic products and has high energy storage density, flexibility and function integration is urgently needed to be developed, a power source is provided for the micro-nano energy storage device, and the power problem of the micro-nano energy storage device is solved. The small laminated super capacitor can perfectly fit the requirements, not only can solve the problems of low power density of the traditional tantalum capacitor and large volume of the common aluminum electrolytic capacitor, but also is expected to be used as a new generation of micro energy and power source to be directly fused and integrated with a micro-nano electronic device.
With the continuous expansion of the application field of the super capacitor, the super capacitor is required to be placed in a limited space more and more, which puts higher requirements on the volume and the shape of the super capacitor. The common aluminum electrolytic capacitor uses the winding core cladding and uses the metal shell as an external packaging component, the product has larger thickness and larger limitation on volume and form, meanwhile, the traditional tantalum capacitor with smaller volume has higher manufacturing cost, and the product has lower capacity due to no addition of electrolyte, namely, the prior art does not have a capacitor with smaller volume and higher capacity.
Disclosure of Invention
In order to solve the problems, the invention provides a laminated supercapacitor and a manufacturing method thereof, which have higher capacity and higher power density on the basis of smaller volume and reduce the production cost.
The invention provides a laminated supercapacitor, which comprises at least two laminated foamed aluminum pole pieces, wherein the internal pores of the laminated foamed aluminum pole pieces are filled with mesoporous activated carbon fibers, the outer side of each foamed aluminum pole piece is provided with a tab, a diaphragm is arranged between every two adjacent foamed aluminum pole pieces, the outer sides of all the foamed aluminum pole pieces are provided with binding parts which integrate the foamed aluminum pole pieces, the outer sides of the foamed aluminum pole pieces surround a shell, and electrolyte is filled in the shell.
Preferably, in the laminated supercapacitor, the surface of the foamed aluminum electrode plate is further provided with an active substance.
Preferably, in the laminated supercapacitor, the active material is activated carbon or graphene.
Preferably, in the laminated supercapacitor, the diaphragm is arranged in a zigzag shape in cross section.
Preferably, in the laminated supercapacitor, the tab and the foamed aluminum pole piece are integrated.
Preferably, in the laminated supercapacitor, the binding member is an adhesive tape.
Preferably, in the laminated supercapacitor, the housing is a plastic housing.
The invention provides a manufacturing method of a laminated supercapacitor, which comprises the following steps:
rolling and compacting one outer side surface of the foamed aluminum pole piece to form a pole lug;
filling mesoporous activated carbon fibers into the pores of the foamed aluminum pole piece, taking out and drying;
the foamed aluminum pole pieces are stacked together, and the adjacent foamed aluminum pole pieces are separated by using a diaphragm;
binding all the foamed aluminum pole pieces and putting the bound foamed aluminum pole pieces into a shell;
and filling electrolyte into the shell and carrying out vacuum sealing.
Preferably, in the above method for manufacturing a laminated supercapacitor, before the filling the mesoporous activated carbon fiber into the pores of the foamed aluminum electrode sheet, the method further includes: and growing active substances on the surface of the foamed aluminum pole piece.
Preferably, in the manufacturing method of the laminated supercapacitor, a vapor deposition process or a plasma etching process is used to grow an active substance on the surface of the foamed aluminum electrode piece, and the active substance is activated carbon or graphene.
As can be seen from the above description, the laminated supercapacitor provided by the present invention includes at least two stacked aluminum foam pole pieces with internal pores filled with porous activated carbon fibers, each of the aluminum foam pole pieces has a tab on an outer side, a separator is disposed between adjacent aluminum foam pole pieces, all the aluminum foam pole pieces have a binding member on the outer side to integrate the aluminum foam pole pieces, and a housing is surrounded by the aluminum foam pole pieces, and the housing is filled with an electrolyte, so that the aluminum foam pole pieces adopted by the capacitor are filled with the porous activated carbon fibers, that is, the aluminum foam is used to replace aluminum foil as a current collector, and the porous activated carbon fibers are used as an active material, so that the capacitor has a higher capacity and a higher power density on the basis of a smaller volume, and reduces production cost. The manufacturing method provided by the invention also has the same advantages as the laminated supercapacitor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of the construction of pole pieces and tabs in an embodiment of a laminated supercapacitor provided in the present invention;
FIG. 2 is an overall schematic view of a core package of a laminated supercapacitor provided in accordance with the present invention;
FIG. 3 is a cross-sectional view of a core package of a laminated supercapacitor provided in accordance with the present invention;
FIG. 4 is an overall schematic view of a laminated supercapacitor provided by the present invention;
fig. 5 is a schematic diagram of an embodiment of a manufacturing method of a laminated supercapacitor provided in the invention.
Detailed Description
The core of the invention is to provide a laminated super capacitor and a manufacturing method thereof, which can have higher capacity and higher power density on the basis of smaller volume and reduce the production cost.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a pole piece and a pole tab in an embodiment of a laminated supercapacitor provided by the present invention, specifically, the laminated supercapacitor includes at least two stacked foamed aluminum pole pieces 1 with internal pores filled with mesoporous activated carbon fibers, the foamed aluminum pole pieces 1 may be rectangular or have other shapes, and here is not limited, an outer side surface of each foamed aluminum pole piece 1 has a pole tab 2, it should be noted that the foamed aluminum pole piece in fig. 1 is represented by black, which indicates that it is subjected to a carbon impregnation process, and the pole tab is rolled and is not subjected to the carbon impregnation process, and a manufacturing method thereof may be as follows: mixing mesoporous activated carbon fiber, a conductive agent, a binder and a solvent into high-viscosity slurry, then covering and protecting a tab of a foamed aluminum pole piece, placing the pole piece into the slurry, placing the whole container in a negative pressure environment, enabling the slurry to enter the pores of the foamed aluminum pole piece, then taking out the foamed aluminum pole piece, removing the protection, scraping the redundant slurry on the surface, then drying the pole piece in an oven to obtain a pole piece based on the mesoporous activated carbon fiber and a foamed aluminum current collector, so that the loading capacity of active substances on the current collector can be improved, referring to figures 2 and 3, figure 2 is an overall schematic diagram of a core package of the laminated supercapacitor provided by the invention, figure 3 is a sectional diagram of the core package of the laminated supercapacitor provided by the invention, and as can be seen from figure 3, a diaphragm 3 is arranged between adjacent foamed aluminum pole pieces 1, and the two foamed aluminum pole pieces 1 are completely separated and wound by the diaphragm 3, thus, short circuit can be prevented, as can be seen from fig. 2, all the foamed aluminum electrode plates 1 have binding components 4 on the outer sides thereof, and after binding, a core package is formed, and only the tabs 2 are exposed outside, and referring to fig. 4, fig. 4 is an overall schematic view of the laminated supercapacitor provided by the present invention, and the outer side thereof is surrounded by a shell 5, that is, the core package of the capacitor is placed inside the shell 5, the whole core package and the shell are vacuum-dried, and then the shell is filled with electrolyte and vacuum-sealed.
As can be seen from the above description, in the embodiment of the laminated supercapacitor provided by the present invention, since the laminated supercapacitor includes at least two laminated aluminum foam pole pieces with porous activated carbon fibers filled in internal pores, the outer side of each aluminum foam pole piece has a tab, a diaphragm is disposed between adjacent aluminum foam pole pieces, the outer sides of all the aluminum foam pole pieces have a binding member for integrating the aluminum foam pole pieces, and the outer sides of the aluminum foam pole pieces surround a casing filled with an electrolyte, it can be seen that the aluminum foam pole pieces used in the laminated supercapacitor are filled with porous activated carbon fibers, that is, the aluminum foam pole pieces used in the laminated supercapacitor use foamed aluminum instead of aluminum foil as a current collector, and the porous activated carbon fibers are used as an active material, so that the laminated supercapacitor can have a higher capacity and a higher power density on the basis of a smaller volume, and reduce production cost.
In a specific embodiment of the above laminated supercapacitor, the surface of the foamed aluminum electrode sheet 1 may further have an active substance, the active substance may preferably be activated carbon or graphene, and of course, other types of active substances may also be selected according to actual needs, which is not limited herein, that is, after the mesoporous activated carbon fiber is filled, the active substance continues to grow on the surface of the foamed aluminum electrode sheet 1, and the active substance can grow to produce a capacitor with lower internal resistance, that is, a power type capacitor.
In another embodiment of the laminated supercapacitor, the cross section of the diaphragm 3 may be arranged in a Z shape, so that the separation of all the foamed aluminum electrode plates 1 can be realized by using only one diaphragm 3, which is more convenient and saves materials, and of course, the separation between the electrode plates can also be realized by other ways, and is not limited herein.
In another embodiment of the above laminated supercapacitor, the tab and the foamed aluminum sheet may be integrated, that is, the foamed aluminum sheet may be manufactured first, then both sides of the foamed aluminum sheet are rolled, and each side of the foamed aluminum sheet is provided with a tab, so that the obtained structure is more stable, the service life is longer, and the tab and the foamed aluminum sheet may be split according to actual needs without limitation.
In the above scheme, it can be understood that the binding component may be an adhesive tape, which is easy to obtain and has a low cost, and can firmly fix the pole piece, and of course, other types of binding components may be selected according to actual needs as long as the binding component can be firmly bound, and the binding component is not limited here. In addition, the shell can be preferably a plastic shell, and just because the components such as the foamed aluminum pole piece and the like are small and light, the shell made of metal is not necessarily adopted, the requirement can be met only by adopting the plastic shell, and the shell made of other materials can be selected according to the actual requirement, and the shell is not limited in the position.
Fig. 5 shows an embodiment of a method for manufacturing a laminated supercapacitor, where fig. 5 is a schematic diagram of an embodiment of a method for manufacturing a laminated supercapacitor, where the method includes the following steps:
s1: rolling and compacting one outer side surface of the foamed aluminum pole piece to form a pole lug;
that is to say, foamed aluminum pole piece and utmost point ear are the integration, and is more firm like this, and life is higher.
S2: filling the mesoporous activated carbon fiber into the pores of the foamed aluminum pole piece, taking out and drying;
the specific operation can be as follows: mix mesoporous type activated carbon fiber, conductive agent, binder and solvent into high viscosity thick liquids, then cover the protection to utmost point ear, place the pole piece in this thick liquids again, place whole container in the negative pressure environment, make inside the hole that thick liquids got into the foam aluminum pole piece, take out the foam aluminum pole piece afterwards, get rid of the protection, strike off the unnecessary thick liquids in surface, then get into the oven and dry, obtain the pole piece based on mesoporous type activated carbon fiber and foam aluminum mass flow body, just so can improve the load capacity of active material on the mass flow body.
S3: the foamed aluminum pole pieces are stacked together, and the adjacent foamed aluminum pole pieces are separated by using a diaphragm;
that is, two foamed aluminum pole pieces were completely separated and wound with a separator to prevent the occurrence of short circuits.
S4: binding all the foamed aluminum pole pieces and putting the bound foamed aluminum pole pieces into a shell;
after binding, the core package is formed, and only the pole lugs are exposed outside.
S5: filling electrolyte into the shell and vacuum sealing.
The manufacturing method of the laminated super capacitor provided by the invention can enable the capacitor to have higher capacity and higher power density on the basis of smaller volume, and reduce the production cost.
In a specific embodiment of the above method for manufacturing a laminated supercapacitor, before filling the mesoporous activated carbon fiber into the pores of the foamed aluminum electrode sheet, the method may further include the following steps: and growing active substances on the surface of the foamed aluminum pole piece. Specifically, a vapor deposition process or a plasma etching process may be used to grow an active substance on the surface of the foamed aluminum electrode sheet, where the active substance may be preferably activated carbon or graphene, and of course, other types of active substances may be selected according to actual needs, which is not limited herein, that is, after the mesoporous activated carbon fiber is filled, the active substance may continue to grow on the surface of the foamed aluminum electrode sheet, and the active substance may grow to produce a capacitor with lower internal resistance, that is, a power type capacitor.
The small laminated super capacitor provided by the invention has larger capacity than the traditional tantalum capacitor, and has the characteristics of long service life, high temperature resistance, high accuracy and low manufacturing cost. The laminated super capacitor mainly meets the requirements of filtering and voltage stabilization of current low frequency, can be popularized and used in a low-frequency filter circuit, and can provide functions of filtering, decoupling, energy storage, oscillation, high-frequency and high-speed environment application and the like. The miniature laminated super capacitor is particularly suitable for application scenes such as computer display cards, network servers, digital televisions, set top boxes and the like which have requirements on capacitance volume, high frequency and low resistance and need large ripple resistance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The laminated supercapacitor is characterized by comprising at least two foamed aluminum pole pieces which are stacked and filled with mesoporous activated carbon fibers in internal pores, wherein each foamed aluminum pole piece is provided with a tab on the outer side and a diaphragm between the adjacent foamed aluminum pole pieces, all the foamed aluminum pole pieces are provided with binding parts which are integrated with the foamed aluminum pole pieces on the outer side, a shell is surrounded on the outer side of each foamed aluminum pole piece, and electrolyte is filled in the shell.
2. The laminated supercapacitor of claim 1, wherein the foam aluminum pole pieces further have an active material on the surface.
3. The laminated supercapacitor of claim 2, wherein the active material is activated carbon or graphene.
4. The laminated supercapacitor of any one of claims 1 to 3, wherein the membrane is arranged in a zigzag configuration in cross-section.
5. The laminated ultracapacitor of claim 4, wherein the tab and the foam aluminum pole piece are integral.
6. The laminated ultracapacitor of claim 5, wherein the bundling component is an adhesive tape.
7. The laminated ultracapacitor of claim 6, wherein the housing is a plastic housing.
8. A manufacturing method of a laminated supercapacitor is characterized by comprising the following steps:
rolling and compacting one outer side surface of the foamed aluminum pole piece to form a pole lug;
filling mesoporous activated carbon fibers into the pores of the foamed aluminum pole piece, taking out and drying;
the foamed aluminum pole pieces are stacked together, and the adjacent foamed aluminum pole pieces are separated by using a diaphragm;
binding all the foamed aluminum pole pieces and putting the bound foamed aluminum pole pieces into a shell;
and filling electrolyte into the shell and carrying out vacuum sealing.
9. The method for manufacturing the laminated supercapacitor according to claim 8, further comprising, before the filling the mesoporous activated carbon fiber into the pores of the foamed aluminum electrode sheet: and growing active substances on the surface of the foamed aluminum pole piece.
10. The manufacturing method of the laminated supercapacitor according to claim 9, wherein an active substance is grown on the surface of the foamed aluminum pole piece by using a vapor deposition process or a plasma etching process, and the active substance is activated carbon or graphene.
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| CN202010589300.3A CN111696789A (en) | 2020-06-24 | 2020-06-24 | Laminated super capacitor and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050059A (en) * | 2022-01-12 | 2022-02-15 | 中天超容科技有限公司 | Foamed aluminum pole piece coating equipment and pole piece manufacturing method applying same |
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| CN209766256U (en) * | 2019-05-07 | 2019-12-10 | 纳智源科技（唐山）有限责任公司 | Electrode and super capacitor applying same |
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|---|---|---|---|---|
| JP2014041790A (en) * | 2012-08-23 | 2014-03-06 | Toyota Industries Corp | Collector, electrode, power storage device, and method for manufacturing collector |
| CN205723170U (en) * | 2016-04-29 | 2016-11-23 | 德益创新（北京）科技有限公司 | Stacked Soft Roll super capacitor |
| CN109786757A (en) * | 2019-03-04 | 2019-05-21 | 中天储能科技有限公司 | Cover carbon foam aluminium compound and preparation method thereof, collector and filtering material |
| CN209766256U (en) * | 2019-05-07 | 2019-12-10 | 纳智源科技（唐山）有限责任公司 | Electrode and super capacitor applying same |
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Application publication date: 20200922 |