WO2014092313A1 - 다공화된 구조의 티타늄 산화물과 탄소계 물질이 병합된 슈퍼 캐패시터 전극재료 및 그 제조방법 - Google Patents
다공화된 구조의 티타늄 산화물과 탄소계 물질이 병합된 슈퍼 캐패시터 전극재료 및 그 제조방법 Download PDFInfo
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- WO2014092313A1 WO2014092313A1 PCT/KR2013/008739 KR2013008739W WO2014092313A1 WO 2014092313 A1 WO2014092313 A1 WO 2014092313A1 KR 2013008739 W KR2013008739 W KR 2013008739W WO 2014092313 A1 WO2014092313 A1 WO 2014092313A1
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- titanium oxide
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 86
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000007772 electrode material Substances 0.000 title claims abstract description 33
- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title abstract description 10
- 239000003990 capacitor Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 239000002041 carbon nanotube Substances 0.000 claims description 10
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- -1 hydrogen ions Chemical class 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 239000005416 organic matter Substances 0.000 claims description 3
- 229910000314 transition metal oxide Inorganic materials 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 17
- 239000002253 acid Substances 0.000 description 11
- 238000004146 energy storage Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000003792 electrolyte Substances 0.000 description 7
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- 229910052792 caesium Inorganic materials 0.000 description 3
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000011368 organic material Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 description 2
- 229910000024 caesium carbonate Inorganic materials 0.000 description 2
- WMRRGFKAQUKRPY-UHFFFAOYSA-N cesium oxygen(2-) titanium(4+) Chemical compound [O-2].[Ti+4].[Cs+] WMRRGFKAQUKRPY-UHFFFAOYSA-N 0.000 description 2
- 238000002484 cyclic voltammetry Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910006913 SnSb Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 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
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010532 solid phase synthesis reaction Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
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
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the 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
- H01G11/46—Metal oxides
-
- 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
- H01G11/32—Carbon-based
-
- 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
- H01G11/36—Nanostructures, e.g. nanofibres, nanotubes or fullerenes
-
- 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
Definitions
- the present invention relates to energy storage capacitors (super capacitors), and more particularly, to a capacitor electrode material using a material suitable for realizing a high energy density and a method of manufacturing the same.
- An energy storage capacitor is a capacitor that functions as a conventional capacitor and has a mechanism for storing energy, and is an energy storage device that can serve as a bridge between a battery and a capacitor.
- an energy storage capacitor having intermediate characteristics between an electrolytic capacitor and a secondary battery has a shorter charging time, a longer life, and a higher power than a secondary battery, and is 10 times more energy than a conventional electrolytic capacitor. Is a high system.
- the capacitor is a positive electrode and a negative electrode manufactured by coating each electrode material on each electrode current collector, the separator is interposed therebetween, and the capacitor structured by the anode / separator / cathode in a variety of gaskets, The electrolyte is injected to prepare a final capacitor.
- An energy storage capacitor is an electrical energy storage device that converts and stores a chemical reaction into electrical energy by using an electrostatic orientation (electrochemical doublelayer) of ions at the electrode / electrolyte interface.
- the capacitance (C) value in the capacitor is proportional to the area in contact and inversely proportional to the distance between the positive and negative charges, i.e. the thickness of the dielectric layer.
- the use of nanoscale porous carbon electrode materials can dramatically increase the area, and the dielectric layer can be reduced to a 10 ⁇ ionic layer, resulting in an extremely high capacitance. .
- Supercapacitors are called electrochemical double-layer capacitors and pseudo capacitors that store charge in the electrical double layer at the electrode / electrolyte interface according to the principle of operation and at the surface of the transition metal oxide. It is accompanied by a change in the valence of transition metal ions and is divided into a redox capacitor that stores charge or electrons.
- Porous activated carbon has pore size of micro (20 ⁇ ⁇ ), meso (20 ⁇ ⁇ pore size ⁇ 100 ⁇ ) and macropore. (> 100 ⁇ ) can be classified into three types, of which the pore size of the micropores can not be a suitable size for the ions in the electrolyte to enter the pores. Therefore, when there are many micropores in the activated carbon, the result is a significantly increased specific surface area, which is an advantage of using activated carbon. Therefore, maintaining the pore structure suitable for the size of the predetermined electrolyte ions is a way to increase the power density of the energy storage capacitor. However, this leads to costly and time-consuming loss of several heat treatments and additional processes.
- transition metal oxide As a redox capacitor is greatly reduced in cost and efficiency.
- RuO 2 has proved to be the most energy-saving property at present, but the disadvantage is that it is unsuitable for mass production due to its high price, and the charge-discharge curve is nonlinear in terms of efficiency. Therefore, a combination of a carbon-based material and a transition metal oxide is used.
- carbon nanotubes have the advantages of high electrical conductivity and large specific surface area as one-dimensional structures, while low unit volume capacity due to large voids and low theoretical capacity (372) as graphite.
- the size of the metal oxide adsorbed to the carbon-based material is about 10 ⁇ 100 nm size has a disadvantage that the overall specific surface area is limited to 10 ⁇ 100 m 2 / g.
- the general specific surface area of the carbonaceous material is 500 to 2500 m 2 / g, it can be seen that the actual active area (contact area) is limited to the specific surface area of the small metal oxide.
- the present invention increases the specific active area of the oxide adsorbed to the carbonaceous material, thereby increasing the substantial active area on the surface of the carbonaceous material so that its capacity is more than twice that of a supercapacitor composed of conventional titanium oxide and carbonaceous material.
- An object of the present invention is to provide an increased supercapacitor electrode material and a method of manufacturing the same.
- the present invention provides a supercapacitor electrode material comprising a titanium oxide having a porous structure and a carbon-based material.
- the carbon-based material is included in the range of 10 to 800 parts by weight based on 100 parts by weight of the oxide.
- the titanium oxide of the porous structure is a form in which spherical titanium oxide is located between the layered titanium oxide layers.
- the spherical titanium oxide in the porous titanium oxide is included in the range of 10 to 100 parts by weight based on 100 parts by weight of the layered titanium oxide.
- the particle size of the spherical titanium oxide is in the range of 1 ⁇ 10nm.
- the carbonaceous material is carbon nanotubes (CNTs).
- the present invention comprises the steps of: inserting a large organic material between the layers in the layered titanium oxide to weaken the interlayer force; Inserting spherical titanium oxide between the layered titanium oxide layers; Heat treatment to obtain titanium oxide having a porous structure; And it provides a method of manufacturing a super-capacitor electrode material comprising the step of merging with the titanium oxide and carbon nanotubes.
- a macromolecular substance having the same molar number as the hydrogen ions included in the layered titanium oxide is added to the distilled water and mixed with the layered titanium oxide.
- the spherical titanium oxide in the range of 10 to 100 parts by weight is mixed with respect to 100 parts by weight of the layered titanium oxide.
- the heat treatment is carried out for 1 to 3 hours in the temperature range of 200 ⁇ 600 °C.
- carbon nanotubes in a range of 10 to 800 parts by weight are mixed with respect to 100 parts by weight of titanium oxide.
- the capacity can be improved by two times or more than that of the supercapacitor using the electrode material composed of a conventional titanium transition metal oxide and a carbon-based material.
- FIG. 1 illustrates a process of manufacturing a titanium oxide having a porous structure.
- FIG. 2 illustrates a process of merging titanium oxide and a carbon-based material.
- the present invention provides a supercapacitor electrode material comprising titanium oxide and a carbon-based material having an enlarged specific surface area with a porous structure.
- supercapacitor electrode material used in the present invention corresponds to an electrode material in a lithium secondary battery, and means that it is used as an electrode of a supercapacitor by being applied to a current collector.
- the carbon-based material is preferably used in the range of 10 to 800 parts by weight based on 100 parts by weight of the titanium oxide.
- the supercapacitor electrode material allows for the electrostatic orientation of the ions at the electrode / electrolyte interface of the capacitor. Increasing the specific surface area of this portion thus enlarges the active area where larger amounts of ions can be electrostatically oriented, resulting in increased capacitance of the capacitor.
- the titanium oxide having a porous structure is, for example, in a form in which spherical titanium oxide is located between the layered titanium oxide layers as shown in FIG. 1. This can be obtained in the following order.
- layered Cs-titanate (cesium titanium oxide) is synthesized by the solid phase method.
- a cesium precursor such as Cs 2 CO 3 (cesium carbonate) and a titanium oxide such as TiO 2 (titanium dioxide) are mixed and heat-treated at a temperature of 700 to 800 ° C. for 15 to 20 hours.
- H-titanate is a form in which cesium metal located between layers of layered Cs-titanate is eliminated, and the modification is a process of obtaining a layered titanium oxide having an empty interlayer from the layered Cs-titanate which was originally synthesized.
- acid solution for the reaction there is a problem that takes a very long reaction time in the case of weak acid HCl, H 2 SO 4 Use common strong acids such as
- the reaction proceeds by leaving the acid solution and the layered Cs-titanate mixed in an amount sufficient to submerge the sample. By reacting for 3 to 5 days, a layered H-titanate can be obtained.
- the acid solution is preferably replaced with a fresh acid solution during the reaction so that Cs can be fully converted to H.
- XRD confirms whether Cs has been converted to H.
- the interlayers of the layered H-titanate thus obtained are reacted with large organics to separate or weaken the interlaminar forces.
- the macro organic material may be used without limitation as long as it has a positively charged organic material such as tetrabutyl ammonium bromide (TAB). Since Titanate is negatively charged, it is possible to use one or more selected from organically positively charged organic matters specifically as large organics.
- TAB tetrabutyl ammonium bromide
- the large organics penetrate into the layers by dissolving and stirring the large organics in at least the same molar ratio as the exchangeable hydrogen ions with the layered H-titanate in distilled water. Thereby weakening the force holding the floor.
- a porous titanium structure in which a spherical titanium oxide is disposed between layers of a layered titanium oxide and a spherical titanium oxide having separated layers (weakened interlayer force) and heat-treated is placed between the layers of the layered titanium oxide.
- the spherical titanium oxide may be synthesized through a sol-gel reaction as an example, but is not limited thereto.
- nanoscale particles it is preferable to use nanoscale particles having a particle size in the range of 1 to 10 nm.
- the mixing ratio of the layered titanium oxide and the spherical titanium oxide is included in the range of 10 to 100 parts by weight of the spherical titanium oxide 100 parts by weight.
- the heat treatment is carried out for 1 to 3 hours in a temperature range of 200 ⁇ 600 °C as a process for removing the large organic matter.
- the titanium oxide having the porous structure thus obtained is combined with a carbonaceous material as shown in FIG. 2 to obtain the supercapacitor electrode material of the present invention.
- a carbon-based material for example, carbon nanotubes (CNTs) may be used.
- NMP N-methyl-2-pyrollidone
- the supercapacitor electrode material obtained is a combination of a titanium oxide and a carbon-based material having an enlarged specific surface through porosity
- the overall specific surface area of the supercapacitor electrode is increased compared to the carbon-based material in which the titanium oxide is shown together in FIG. 2. Get the result. Therefore, in the supercapacitor fabricated by inserting the electrode material of the present invention between the electrodes of the capacitor, the capacity, which was limited by the small specific surface area of the oxide, is increased.
- Cs 2 CO 3 cesium carbonate
- TiO 2 titanium dioxide
- Cs 0.67 Ti 1.83 ⁇ 0.17 O 4 where ⁇ means vacancy causing negative charge in the electrode material layer.
- the titanium oxide and carbon nanotubes obtained in the above process were prepared in a mass ratio of 8: 1, and physically mixed using a mortar and pestle, and 3 mL of NMP (N-Methyl pyrrolidone) was added as a solvent, followed by stirring. And it dried in the oven at 110 degreeC or more, and manufactured the supercapacitor electrode material.
- NMP N-Methyl pyrrolidone
- titanium oxides TiO 2 , Sigma Aladrich
- carbon nanotubes are prepared in a mass ratio of 8: 1, and physically mixed using a mortar and pestle. 3 mL of NMP (N-Methyl pyrrolidone) is added as a solvent, followed by stirring. It was. And it dried in the oven at 110 degreeC or more, and manufactured the supercapacitor electrode material.
- NMP N-Methyl pyrrolidone
- the supercapacitor electrode material, PVDF (Polyvinylidene fluoride) and the conductive material prepared in Examples and Comparative Examples were added and stirred at a mass ratio of 8: 1: 1.
- the obtained solution was coated thinly on an aluminum foil as a current collector to prepare a working electrode, and stainless steel foil was used as a counter electrode and a reference electrode.
- CV Cyclic voltammetry
- the capacity of the comparative example was about 120 F / g, whereas in the case of the example, the capacity was about 2 times increased to about 220 F / g.
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- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nanotechnology (AREA)
- Manufacturing & Machinery (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
Claims (11)
- 다공화된 구조의 티타늄 산화물과 탄소계 물질을 포함하는 것을 특징으로 하는 슈퍼 캐패시터 전극재료.
- 제1항에서,상기 탄소계 물질은 다공화된 구조의 티타늄 산화물 100 중량부에 대하여 10~800 중량부 범위로 포함되는 것을 특징으로 하는 슈퍼 캐패시터 전극재료.
- 제1항에서,상기 다공화된 구조의 티타늄 산화물은 층상형 티타늄 산화물 층 사이에 구형의 티타늄 산화물이 위치하고 있는 형태인 것을 특징으로 하는 슈퍼 캐패시터 전극재료.
- 제3항에서,상기 다공화된 구조의 티타늄 산화물에서 구형의 티타늄 산화물은 층상형 티타늄 산화물 100 중량부에 대하여 10~100 중량부의 범위로 포함되는 것을 특징으로 하는 슈퍼 캐패시터 전극재료.
- 제3항에서,상기 구형의 티타늄 산화물의 입경은 1~10nm 범위인 것을 특징으로 하는 슈퍼 캐패시터 전극재료.
- 제1항에서,상기 탄소계 물질은 탄소나노튜브(carbon nano tube, CNT)인 것을 특징으로 하는 슈퍼 캐패시터 전극재료.
- 층상형의 티타늄 산화물에 거대 유기물을 층간 사이에 삽입하여 층간력을 약화시키는 단계;층상형의 티타늄 산화물 층간에 구형의 티타늄 산화물을 삽입하는 단계;열처리하여 다공화된 구조의 티타늄 산화물을 획득하는 단계; 및상기 다공화된 구조의 티타늄 산화물과 탄소계 물질을 병합하는 단계를 포함하는 것을 특징으로 하는 슈퍼 캐패시터 전극재료의 제조 방법.
- 제7항에서,상기 층상형의 티타늄 산화물의 층간력을 약화시키기 위해 층상형의 티타늄 산화물에 포함된 수소 이온과 동일한 몰 수의 거대 유기물을 층상형의 티타늄 산화물과 함께 증류수에 투입하여 혼합하는 것을 특징으로 하는 슈퍼 캐패시터 전극재료의 제조 방법.
- 제7항에서,상기 층상형의 티타늄 산화물 층간에 구형의 티타늄 산화물을 삽입하기 위해 층상형 티타늄 산화물 100 중량부에 대하여 10~100 중량부의 범위의 구형의 티타늄 산화물을 혼합하는 것을 특징으로 하는 슈퍼 캐패시터 전극재료의 제조 방법.
- 제7항에서,상기 열처리는 200~600 ℃의 온도 범위에서 1~3 시간 동안 실시하는 것을 특징으로 하는 슈퍼 캐패시터 전극재료의 제조 방법.
- 제7항에서,상기 다공화된 구조의 티타늄 산화물과 탄소계 물질을 병합하기 위해 티타늄 산화물 100 중량부에 대하여 10~800 중량부 범위의 탄소계 물질을 혼합하는 것을 특징으로 하는 슈퍼 캐패시터 전극재료의 제조 방법.
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JP2015547834A JP6336470B2 (ja) | 2012-12-12 | 2013-09-30 | 多孔化された構造のチタン酸化物と炭素系物質が結合されたスーパーキャパシター電極材料およびその製造方法 |
EP13862039.8A EP2933809B1 (en) | 2012-12-12 | 2013-09-30 | Supercapacitor electrode material having combined porous titanium oxide and carbon-based material, and method for manufacturing same |
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EP2933809B1 (en) | 2019-08-21 |
US20150262763A1 (en) | 2015-09-17 |
EP2933809A4 (en) | 2016-09-07 |
JP2016504763A (ja) | 2016-02-12 |
JP6336470B2 (ja) | 2018-06-06 |
US9972448B2 (en) | 2018-05-15 |
EP2933809A1 (en) | 2015-10-21 |
KR20140076326A (ko) | 2014-06-20 |
KR101973050B1 (ko) | 2019-04-26 |
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