CN105551824A - Self-support supercapacitor free of metallic current collector - Google Patents
Self-support supercapacitor free of metallic current collector Download PDFInfo
- Publication number
- CN105551824A CN105551824A CN201510953404.7A CN201510953404A CN105551824A CN 105551824 A CN105551824 A CN 105551824A CN 201510953404 A CN201510953404 A CN 201510953404A CN 105551824 A CN105551824 A CN 105551824A
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- CN
- China
- Prior art keywords
- self
- ultracapacitor
- supporting
- positive
- metal collector
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G11/36—Nanostructures, e.g. nanofibres, nanotubes or fullerenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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 OR LIGHT-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
Abstract
The invention relates to a self-support supercapacitor free of a metallic current collector. The capacitor adopts bucky paper as positive electrode and negative electrode active materials; the mass ratio of a positive plate to a negative plate is 1.0-1.3:1; the positive plate and the negative plate are coated with a conductive binder separately, and tabs are carefully led out of the positive plate and the negative plate; a supercapacitor cell is assembled based on the sequence of the positive electrode-a diaphragm-the negative electrode; and finally the supercapacitor cell is filled with an electrolyte and is packaged to obtain the single supercapacitor. The supercapacitor provided by the invention is simple to prepare, low in internal resistance, high in charge/discharge efficiency, and free of occupied space and quality of the current collector; and the self-support supercapacitor can be widely applied to the electronic industry.
Description
[technical field]
The present invention relates to a kind of capacitor, be specifically related to a kind of self-supporting ultracapacitor without metal collector.
[background technology]
Carbon nano-tube (CarbonNanotubes, CNTs) be a kind of by the curling tubulose material with carbon element formed of graphite flake layer, it has very high specific area, good conductivity and chemical stability, is at present by one of ideal capacitor electrode material of extensively approving.Carbon nano-tube Buckie paper (Buckypaper) is a kind of film with special self supporting structure formed based on the Van der Waals force between carbon pipe, but its mechanicalness and pliability will be far superior to common CNTs film, this makes Buckie paper become one of study hotspot in recent years.
Existing super-capacitor pole piece generally adopts Copper Foil or aluminium foil as collector, and active material adopts the mode of coating to adhere on a current collector, and this often makes the specific discharge capacity of device reduce.And some electrolyte in use can cause the corrosion of Copper Foil or dissolving to make device that other side reactions occur, and affects performance.Buckie paper has good electric conductivity, extremely low internal resistance and certain stored charge capacity, in polymer/Buckie paper and metal oxide/Buckie paper combination electrode material, carry out a lot of research at present, but directly use Buckie paper to have not been reported as the research without collector self-supporting electrode.
[summary of the invention]
The invention provides a kind of self-supporting ultracapacitor without metal collector.This invention adopts Buckie paper as electrode, it has very high conductivity, simultaneously can as electrode active material adsorbing electrolyte ion, therefore can not need rely on metal collector and there is very little resistance value, alleviate the quality of device, greatly improving the specific capacity of device, is a kind of good selection of flexible super capacitor.
To achieve these goals, a kind of self-supporting ultracapacitor without metal collector is provided, positive and negative plate all adopts Buckie paper as active material, the mass ratio of positive and negative plate is (1.0-1.3): 1, positive and negative plate is coated conductive adhesive respectively and draws lug carefully, dress up super capacitor electric core according to the der group of positive pole-barrier film-negative pole, finally injection electrolyte also encapsulates and is prepared into ultracapacitor monomer.
The described preparation method stating the Buckie paper adopted in ultracapacitor is: carbon nano-tube, dispersant and solvent are carried out mix and blend a period of time, then by ultrasonic for the mixture after above-mentioned stirring process 30-60min.Turbid liquid after ultrasonic is placed in Buchner funnel, first leaves standstill 24-72h and make solid homogeneous free settling, carry out suction filtration subsequently, oven dry prepares Buckie paper.Noted before liquid is about to all exhaust, reduce suction filtration intensity, prevent Buckie paper from ftractureing.
The electrolyte that described ultracapacitor adopts is electrolyte and solvent composition, electrolyte is the quaternary ammonium salt such as tetraethyl ammonium fluoroborate or triethyl group monomethyl tetrafluoro boric acid ammonium salt, and solvent is the mixture of one or more in acetonitrile, propene carbonate, dimethyl carbonate, methyl ethyl carbonate etc.
Preferably, described electrolyte is tetraethyl ammonium fluoroborate, and solvent is the mixture of acetonitrile and propene carbonate.
Preferably, in described electrolyte solvent, the ratio of acetonitrile is 60-70vol.%.
Preferably, the mass ratio of described positive/negative plate is 1.1-1.2:1.
Preferably, the surface density of described Buckie paper is 120-200g/m
2.
Preferably, described conductive adhesive is conductive silver glue.
Preferably, described lug is lightweight copper polar ear.
Ultracapacitor of the present invention make simple, internal resistance is little, efficiency for charge-discharge is high, eliminate space and quality that metal collector occupies, these components and parts can be widely used in electron trade.
[accompanying drawing explanation]
Fig. 1 structural representation of the present invention.
1. lug 2. barrier film 3. conducting resinl 4. Buckie paper in figure
[embodiment]
Below, be described further with accompanying drawing for the present invention, embodiment and accompanying drawing are only not intended to limit the scope of the invention for explaining explanation in conjunction with the embodiments.
Embodiment 1
The ultracapacitor of the present embodiment is made up of positive/negative plate, barrier film, electrolyte, lug etc.Wherein, positive/negative plate is surface density is 160g/m
2buckie paper, the mass ratio of positive and negative plate is 1.2:1; At the end coating film conductive silver glue equably of Buckie paper, careful adheres on Buckie paper pole piece by lightweight copper polar ear; Barrier film is paper barrier film; Solute in electrolyte is tetraethyl ammonium fluoroborate, and solvent is the mixture of acetonitrile and propene carbonate, and wherein the ratio of acetonitrile is 60vol.%.The part of above-mentioned each capacitor is assembled into flexible packed super-capacitor monomer, and shell is aluminum plastic film.
Embodiment 2
The ultracapacitor of the present embodiment is made up of positive/negative plate, barrier film, electrolyte, lug etc.Wherein, positive/negative plate is surface density is 160g/m
2buckie paper, the mass ratio of positive and negative plate is 1.1:1; At the end coating film conductive silver glue equably of Buckie paper, careful adheres on Buckie paper pole piece by lightweight copper polar ear; Barrier film is paper barrier film; Solute in electrolyte is tetraethyl ammonium fluoroborate, and solvent is the mixture of acetonitrile and propene carbonate, and wherein the ratio of acetonitrile is 60vol.%.The part of above-mentioned each capacitor is assembled into flexible packed super-capacitor monomer, and shell is aluminum plastic film.
Claims (8)
1. the self-supporting ultracapacitor without metal collector, it is characterized in that positive and negative plate all adopts Buckie paper as active material, the mass ratio of positive and negative plate is 1.0-1.3:1, positive and negative plate coats conductive adhesive respectively and draws lug, dress up super capacitor electric core according to the der group of positive pole-barrier film-negative pole, finally injection electrolyte also encapsulates and is prepared into ultracapacitor monomer.
2. as claimed in claim 1 without the self-supporting ultracapacitor of metal collector, it is characterized in that the preparation method of described Buckie paper is: carbon nano-tube, dispersant and solvent are carried out mix and blend, then by ultrasonic for the mixture after above-mentioned stirring process 30-60min, turbid liquid after ultrasonic is placed in Buchner funnel, first leave standstill 24-72h and make solid homogeneous free settling, carry out suction filtration subsequently, before liquid is about to all exhaust, reduce suction filtration intensity, prevent Buckie paper from ftractureing, finally dry and prepare Buckie paper.
3. as claimed in claim 1 without the self-supporting ultracapacitor of metal collector, it is characterized in that described electrolyte is electrolyte and solvent composition, electrolyte is tetraethyl ammonium fluoroborate or triethyl group monomethyl tetrafluoro boric acid ammonium salt, and solvent is the mixture of one or more in acetonitrile, propene carbonate, dimethyl carbonate, methyl ethyl carbonate.
4., as claimed in claim 3 without the self-supporting ultracapacitor of metal collector, it is characterized in that described electrolyte is tetraethyl ammonium fluoroborate, solvent is the mixture of acetonitrile and propene carbonate, and the ratio of acetonitrile is 60-70vol.%.
5., as claimed in claim 1 without the self-supporting ultracapacitor of metal collector, it is characterized in that the mass ratio of described positive and negative plate is 1.1-1.2.
6., as claimed in claim 1 without the self-supporting ultracapacitor of metal collector, it is characterized in that the surface density of described Buckie paper is 120-200g/m
2.
7., as claimed in claim 1 without the self-supporting ultracapacitor of metal collector, it is characterized in that described conductive adhesive is conductive silver glue.
8., as claimed in claim 1 without the self-supporting ultracapacitor of metal collector, it is characterized in that described lug is lightweight copper polar ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510953404.7A CN105551824A (en) | 2015-12-17 | 2015-12-17 | Self-support supercapacitor free of metallic current collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510953404.7A CN105551824A (en) | 2015-12-17 | 2015-12-17 | Self-support supercapacitor free of metallic current collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105551824A true CN105551824A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510953404.7A Pending CN105551824A (en) | 2015-12-17 | 2015-12-17 | Self-support supercapacitor free of metallic current collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105551824A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449154A (en) * | 2016-11-09 | 2017-02-22 | 南昌大学 | Supercapacitor taking low-dimensional carbon material thin films as electrode slices and preparation method |
| CN110323076A (en) * | 2018-03-30 | 2019-10-11 | 北京国能电池科技股份有限公司 | Diaphragm/electrode composite construction and preparation method thereof, purposes and supercapacitor |
| CN110323075A (en) * | 2018-03-30 | 2019-10-11 | 北京国能电池科技股份有限公司 | Diaphragm/electrode composite construction and preparation method thereof, purposes and supercapacitor |
| US20210090820A1 (en) * | 2017-04-07 | 2021-03-25 | Zapgo Ltd | Self-supporting carbon electrode |
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| US20070041887A1 (en) * | 2002-03-22 | 2007-02-22 | Veedu Sreekumar T | Single-wall carbon nanotube film having high modulus and conductivity and process for making the same |
| CN101691280A (en) * | 2009-10-30 | 2010-04-07 | 上海交通大学 | Method for preparing carbon nano tube film |
| 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 |
| CN102593436A (en) * | 2012-02-27 | 2012-07-18 | 清华大学 | Self-supporting flexible carbon nano-tube paper composite electrode material for lithium ion battery |
| CN103280338A (en) * | 2013-05-22 | 2013-09-04 | 南京师范大学 | Reinforced carbon nano tube bucky paper of support-free electrode in supercapacitor and preparation method of reinforced carbon nano tube bucky paper |
| CN103762088A (en) * | 2013-12-31 | 2014-04-30 | 昆明纳太能源科技有限公司 | Novel super capacitor and manufacturing method thereof |
| CN103779106A (en) * | 2013-12-31 | 2014-05-07 | 昆明纳太能源科技有限公司 | Nanometer carbon paper for super-capacitor and preparing method thereof |
| CN203839211U (en) * | 2014-04-17 | 2014-09-17 | 江苏捷峰高科能源材料股份有限公司 | Supercapacitor single body |
-
2015
- 2015-12-17 CN CN201510953404.7A patent/CN105551824A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070041887A1 (en) * | 2002-03-22 | 2007-02-22 | Veedu Sreekumar T | Single-wall carbon nanotube film having high modulus and conductivity and process for making the same |
| 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 |
| CN101691280A (en) * | 2009-10-30 | 2010-04-07 | 上海交通大学 | Method for preparing carbon nano tube film |
| CN102593436A (en) * | 2012-02-27 | 2012-07-18 | 清华大学 | Self-supporting flexible carbon nano-tube paper composite electrode material for lithium ion battery |
| CN103280338A (en) * | 2013-05-22 | 2013-09-04 | 南京师范大学 | Reinforced carbon nano tube bucky paper of support-free electrode in supercapacitor and preparation method of reinforced carbon nano tube bucky paper |
| CN103762088A (en) * | 2013-12-31 | 2014-04-30 | 昆明纳太能源科技有限公司 | Novel super capacitor and manufacturing method thereof |
| CN103779106A (en) * | 2013-12-31 | 2014-05-07 | 昆明纳太能源科技有限公司 | Nanometer carbon paper for super-capacitor and preparing method thereof |
| CN203839211U (en) * | 2014-04-17 | 2014-09-17 | 江苏捷峰高科能源材料股份有限公司 | Supercapacitor single body |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449154A (en) * | 2016-11-09 | 2017-02-22 | 南昌大学 | Supercapacitor taking low-dimensional carbon material thin films as electrode slices and preparation method |
| US20210090820A1 (en) * | 2017-04-07 | 2021-03-25 | Zapgo Ltd | Self-supporting carbon electrode |
| CN110323076A (en) * | 2018-03-30 | 2019-10-11 | 北京国能电池科技股份有限公司 | Diaphragm/electrode composite construction and preparation method thereof, purposes and supercapacitor |
| CN110323075A (en) * | 2018-03-30 | 2019-10-11 | 北京国能电池科技股份有限公司 | Diaphragm/electrode composite construction and preparation method thereof, purposes and supercapacitor |
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Application publication date: 20160504 |
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