CN102496475B - A kind of super capacitor electrode sheet based on Graphene and preparation method thereof - Google Patents
A kind of super capacitor electrode sheet based on Graphene and preparation method thereof Download PDFInfo
- Publication number
- CN102496475B CN102496475B CN201110362799.5A CN201110362799A CN102496475B CN 102496475 B CN102496475 B CN 102496475B CN 201110362799 A CN201110362799 A CN 201110362799A CN 102496475 B CN102496475 B CN 102496475B
- Authority
- CN
- China
- Prior art keywords
- graphene
- electrode sheet
- super capacitor
- sheet based
- electrode slice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 46
- 239000003990 capacitor Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 10
- 239000003960 organic solvent Substances 0.000 claims abstract description 5
- 238000001338 self-assembly Methods 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims description 12
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 10
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 238000007603 infrared drying Methods 0.000 claims description 3
- 238000003828 vacuum filtration Methods 0.000 claims description 3
- SIXOAUAWLZKQKX-UHFFFAOYSA-N carbonic acid;prop-1-ene Chemical compound CC=C.OC(O)=O SIXOAUAWLZKQKX-UHFFFAOYSA-N 0.000 claims description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 15
- 239000003792 electrolyte Substances 0.000 description 4
- 239000011149 active material Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- -1 graphite alkene Chemical class 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000000498 ball milling Methods 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000000967 suction filtration Methods 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 1
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
- 241000720974 Protium Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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 present invention relates to a kind of super capacitor electrode sheet based on Graphene and preparation method thereof, belong to super capacitor technology field.Electrode slice disclosed in this invention is formed by the Graphene derived material self assembly of a kind of porous, three-dimensional structure, has very high specific area.During preparation, above-mentioned grapheme material powder is evenly dispersed in organic solvent, then through ultrasonic, filter and dry, form the thin slice of desired thickness in the mode of self assembly.Just can as the electrode slice of super capacitor after this thin slice cutting, in all kinds of super capacitor such as button and takeup type.Electrode slice of the present invention, has the advantage that aperture passage distribution is reasonable, ratio capacitance is large, internal resistance is little and the life-span is long.
Description
Technical field
The present invention relates to a kind of electrode slice of super capacitor, more particularly, relate to a kind of with Graphene derived material be active material super capacitor electrode sheet and preparation technology thereof, belong to super capacitor technology field.
Background technology
Super capacitor be a kind of between traditional capacitance and storage battery, the special novel energy-storing device of performance, there is the advantages such as power density is high, the charging interval is short, long service life.The electrode slice of conventional Super electric capacity is all based on porous active Carbon Materials, and the specific area of this kind of Carbon Materials is usually at 1000 m
2/ g ~ 2000 m
2between/g.Use the electric capacity obtained by this Carbon Materials, quality is than the value (employing organic electrolyte) between 100 F/g ~ 120 F/g of electric capacity.Graphene is the monoatomic layer two dimensional crystal that carbon atom arranges by hexagonal structure, and be nano material the thinnest at present, theoretical specific surface area is up to 2630 m
2/ g, and conduct electricity very well, stable chemical performance, these advantages make grapheme material in ultracapacitor, have huge using value.
CN101870466A discloses a kind of preparation method of electrode material graphene nanometer sheet and the electrode slice of preparation thereof, and in that patent, the graphene nanometer sheet obtained by ball-milling method mixes with organic binder bond, bonds and is rolled into electrode slice.US Patent No. 7875219B2 discloses a kind of super capacitor electrode sheet using graphene nanometer sheet to prepare.In that patent, flake graphite alkene is condensed together by organic binder bond, stays a certain amount of space, as shown in Figure 1 between graphene film and sheet.A part in these spaces can form passage, and the electrolyte of super capacitor can spread in these interstitial channels.These two patents above-mentioned all using graphene nanometer sheet as the active material of electrode slice, and all use organic polymer materials that graphene nanometer sheet is bonded together formation electrode slice.The defect of above-mentioned two technology is: on the one hand, to bond graphene nanometer sheet with binding agent, be difficult to the void size effectively between control strip and sheet and form passage by space, this seriously reduces the utilance of graphenic surface, limits the free diffusing of super capacitor electrolyte.What is more important, between graphene film and sheet, organic polymer materials reduces the conductance of electrode slice, thus adds the internal resistance of super capacitor, limits the power density of super capacitor.On the other hand, the graphene nanometer sheet that ball-milling method is obtained, its specific area is far below three-dimensional, porous graphene derived material.For super capacitor, the specific area of electrode slice material directly determines the ratio capacitance value of electric capacity.The technical problem of above-mentioned two aspects all constrains the performance of graphene nano electrode slice disclosed in aforementioned two patents.
Another patent CN102070140A of our company discloses a kind of method utilizing highly basic chemical treatment to obtain preparing high-specific surface area graphene material, and can obtain the Graphene derived material of three-dimensional, porous, specific area is up to 1500m
2/ g ~ 3000m
2/ g, keeps the high conductance of material simultaneously.Super capacitor electrode sheet of the present invention just based on above-mentioned patent grapheme material and develop.
Summary of the invention
In order to overcome the difficulty of above-mentioned prior art, the invention provides following technical scheme:
Based on a super capacitor electrode sheet for Graphene, described electrode slice contains the grapheme material of a kind of three-dimensional, loose structure.Particularly, the density of described electrode slice is 0.05g/cm
3to 1g/cm
3, thickness is 50nm to 500 μm, and electrode slice thickness can be regulated by the concentration of finely disseminated stable black suspension or volume.
Further, in described grapheme material, the content of protium is extremely low, and carbon purity is very high, and between carbon atom, almost 100% ground is connected by sp2 key simultaneously, and conduct electricity very well, conductance is greater than 100S/m; And/or its specific area is greater than 2600m
2/ g, and/or its pore diameter range is 2nm to 100nm.
The preparation method of the above-mentioned super capacitor electrode sheet based on Graphene, step is as follows: (1) takes three-dimensional, porous graphene material powder be distributed in organic solvent, obtains black suspension after ultrasonic 1 to 30 minutes; (2) pour the black suspension of step (1) into filter, filter and obtain graphene platelet; (3) graphene platelet of step (2) is carried out drying process; (4) graphene platelet after step (3) drying process is carried out cutting, obtain described super capacitor electrode sheet.
Described organic solvent is a kind of or any two the above combinations in DMF (DMF), 1-Methyl-2-Pyrrolidone (NMP), dimethyl sulfoxide (DMSO) (DMSO), oxolane (THF), propene carbonate (PC), acetone, acetonitrile, pyridine, chlorobenzene.
Describedly be filtered into vacuum filtration or gas press filtration.
Described drying is treated to vacuumize or the infra-red drying of 50 DEG C ~ 150 DEG C.
Just as positive pole and negative electricity pole piece, in all kinds of super capacitor such as button and takeup type, the advantage that aperture passage distribution is reasonable, ratio capacitance is large, internal resistance is little and the life-span is long can be had after described graphene platelet (i.e. super capacitor electrode sheet) cutting.Super capacitor obtained by described electrode slice, electrode slice has the network-like hole passage be interconnected, and ratio capacitance is greater than 150 F/g, and energy density is greater than 20 Wh/kg.
Particularly, advantage of the present invention is:
The porous of producing with method described in patent CN102070140A, the Graphene derived material of three-dimensional structure are for electrode slice active material, many network-like aperture passage be interconnected are dispersed with in the electrode obtained sheet, super capacitor electrolyte fully freely can spread in these aperture passage, large with the super capacitor ratio capacitance obtained by this electrode slice.In preparation technology, super capacitor electrode sheet is obtained by the self assembly of this Graphene derived material, avoid using the Organic adhesive such as the polytetrafluoroethylene (PTFE) that adopts in traditional electrical pole piece manufacturing process and Kynoar (PVDF), reduce the resistance of electrode slice.This technique can the thickness of control electrode sheet, size and shape well, is particularly suitable for industrialization large-scale production.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the microstructure schematic diagram of Graphene electrodes sheet disclosed in US Patent No. 7875219B2;
Fig. 2 is the microstructure schematic diagram after electrode slice partial enlargement of the present invention, and in figure, 1 is electrode slice, and 2 is partial enlarged drawing;
Fig. 3 is the atomic structure schematic diagram of the present invention's three-dimensional used, porous graphene derived material;
Fig. 4 is the technique the electrode obtained sheet adopting the embodiment of the present invention 1, is assembled into the cycle charge-discharge attenuation curve figure of button super capacitor;
Fig. 5 is the scanning electron microscopic picture of electrode slice cross section obtained by preparation method of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Embodiment 1:
A kind of method preparing super capacitor electrode sheet, comprise following preparation process: 1, take with described in patent CN102070140A method produce 100 milligrams, grapheme material powder (choose the grapheme material powder that quality meets application claims, wherein grapheme material specific area is greater than 2600m
2/ g, conductance is greater than 100mS/m), be placed in agate mortar, grinding is evenly; 2, by above-mentioned ground powder, join in 100 ml DMFs, stir latter ultrasonic 5 minutes, obtain finely dispersed black suspension; 3, pour dark solution into Vacuum filtration device, carry out suction filtration; 4, vacuum drying chamber put into by the graphene platelet filter cake obtained by suction filtration, and drying box temperature is set to 50 DEG C, carries out drying process 30 minutes; 5, the paper-like graphene film obtained after drying is cut into the round thin slice (super capacitor electrode sheet) of diameter 12 mm, its density is 0.1g/cm
3, thickness is 100nm, for button super capacitor.
Fig. 4 gives the cycle charge-discharge attenuation curve with above-mentioned electrode slice assembling gained button super capacitor, and wherein electrolyte used is the tetraethylammonium tetrafluoroborate (Et4NBF4) of 1 mol/L.As we can see from the figure, adopt the ratio capacitance of above-mentioned electrode slice up to 159 F/g, after 500 charge and discharge cycles, ratio capacitance still keeps during first discharge and recharge about 94%.Illustrate that the electrode slice ratio capacitance prepared by the method is large, long service life.
Embodiment 2:
A kind of method preparing super capacitor electrode sheet, comprise following preparation process: 1, take Graphene derived material powder 200 g(produced with method described in patent CN102070140A and choose the grapheme material powder that quality meets application claims, wherein grapheme material conductance is greater than 100mS/m, pore diameter range is 2nm ~ 100nm), be placed in grinder, grinding evenly; 2, add 100 L 1-Methyl-2-Pyrrolidones in a kettle., then pour the powder after above-mentioned grinding into reactor, stir latter ultrasonic 20 minutes, obtain finely dispersed black suspension; 3, pour above-mentioned dark solution into gas filter-pressing device, carry out press filtration; 4, vacuum infrared drying box put into by graphene platelet filter cake press filtration obtained, and carries out drying process; 5, sheared by the paper-like graphene film obtained after drying, obtaining wide is the long band (super capacitor electrode sheet) of 10 cm, and its density is 0.3g/cm
3, thickness is 10 μm, for winding type super electric capacity.
Fig. 5 gives the cross-sectional scans Electronic Speculum figure preparing electrode slice with said method.
Embodiment 3:
Prepare a method for super capacitor electrode sheet, method step is as embodiment 2, and wherein, the specific area of grapheme material powder is greater than 2600m
2/ g, conductance is greater than 100mS/m, and pore diameter range is 2nm ~ 100nm, and reaction dissolvent is acetonitrile, and ultrasonic time is 30 minutes, and baking temperature is 150 DEG C, and carry out drying process 5 minutes, the density of the super capacitor electrode sheet obtained is 0.8g/cm
3, thickness is 100 μm.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. based on a super capacitance electrode sheet for Graphene, it is characterized in that, described electrode slice is made up in the mode of self assembly of three-dimensional, porous graphene material,
Described self assembly step is as follows: (1) take three-dimensional, porous Graphene derived material powder and be distributed in organic solvent, obtain black suspension after ultrasonic 1 minute ~ 30 minutes; (2) pour the black suspension of step (1) into filter, filter and obtain graphene platelet; (3) graphene platelet of step (2) is carried out drying process; (4) graphene platelet after step (3) drying process is carried out cutting, obtain described super capacitor electrode sheet.
2. the super capacitance electrode sheet based on Graphene according to claim 1, is characterized in that, the density of described electrode slice is 0.05g/cm
3~ 1g/cm
3, thickness is 50nm ~ 500 μm.
3. the super capacitance electrode sheet based on Graphene according to claim 1 and 2, it is characterized in that, described grapheme material specific area is greater than 2600m
2/ g, and/or conductance is greater than 100mS/m, and/or pore diameter range is 2nm ~ 100nm.
4. the super capacitance electrode sheet based on Graphene according to claim 1, it is characterized in that, described organic solvent is a kind of or any two the above combinations in DMF, 1-Methyl-2-Pyrrolidone, dimethyl sulfoxide (DMSO), oxolane, propene carbonate, acetone, acetonitrile, pyridine, chlorobenzene.
5. the super capacitance electrode sheet based on Graphene according to claim 1, is characterized in that, described in be filtered into vacuum filtration or gas press filtration.
6. the super capacitance electrode sheet based on Graphene according to claim 1, is characterized in that, described drying is treated to vacuumize or the infra-red drying of 50 DEG C ~ 150 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110362799.5A CN102496475B (en) | 2011-11-16 | 2011-11-16 | A kind of super capacitor electrode sheet based on Graphene and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110362799.5A CN102496475B (en) | 2011-11-16 | 2011-11-16 | A kind of super capacitor electrode sheet based on Graphene and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102496475A CN102496475A (en) | 2012-06-13 |
| CN102496475B true CN102496475B (en) | 2015-09-02 |
Family
ID=46188286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110362799.5A Active CN102496475B (en) | 2011-11-16 | 2011-11-16 | A kind of super capacitor electrode sheet based on Graphene and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102496475B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794795A (en) * | 2012-10-31 | 2014-05-14 | 海洋王照明科技股份有限公司 | Boron doped graphene composite electrode material and preparation method thereof, and lithium ion battery and preparation method thereof |
| CN103803533A (en) * | 2012-11-15 | 2014-05-21 | 福建省辉锐材料科技有限公司 | Preparation method of graphene |
| CN103117374B (en) * | 2013-02-19 | 2016-02-10 | 宁德新能源科技有限公司 | Anode pole piece of lithium rechargeable battery and preparation method thereof |
| CN105489392B (en) * | 2015-11-26 | 2017-11-24 | 中国第一汽车股份有限公司 | A kind of graphene pole piece and preparation method thereof |
| CN105869924B (en) * | 2016-05-06 | 2018-02-23 | 清华大学深圳研究生院 | A kind of preparation method of graphene-based thick cipher telegram pole |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654245A (en) * | 2009-10-10 | 2010-02-24 | 天津大学 | Solid-liquid interface self-assembly preparation method for graphene oxide film |
| CN101837972A (en) * | 2010-05-28 | 2010-09-22 | 南京邮电大学 | Graphene three-dimensional structure and preparation method thereof |
| CN101870466A (en) * | 2010-05-20 | 2010-10-27 | 北京化工大学 | Preparation method of electrode material graphene nanometer sheet and electrode sheet prepared therefrom |
| CN102120573A (en) * | 2011-01-25 | 2011-07-13 | 中国科学院化学研究所 | Graphene nanospheres and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993056B (en) * | 2010-12-01 | 2012-05-30 | 天津大学 | Graphene-based porous macroscopic carbon material and preparation method thereof |
| CN102161483B (en) * | 2011-02-28 | 2013-04-24 | 常州第六元素材料科技股份有限公司 | Method for preparing graphene by heating organic solvent suspension of graphite oxide |
-
2011
- 2011-11-16 CN CN201110362799.5A patent/CN102496475B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654245A (en) * | 2009-10-10 | 2010-02-24 | 天津大学 | Solid-liquid interface self-assembly preparation method for graphene oxide film |
| CN101870466A (en) * | 2010-05-20 | 2010-10-27 | 北京化工大学 | Preparation method of electrode material graphene nanometer sheet and electrode sheet prepared therefrom |
| CN101837972A (en) * | 2010-05-28 | 2010-09-22 | 南京邮电大学 | Graphene three-dimensional structure and preparation method thereof |
| CN102120573A (en) * | 2011-01-25 | 2011-07-13 | 中国科学院化学研究所 | Graphene nanospheres and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| Carbon-Based Supercapacitors Produced by Activation of Graphene;Yanwu Zhu et al.;《Science》;20110624;第1页第1栏第1行-第2页第3栏倒数第3行 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102496475A (en) | 2012-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Biomass based N-doped hierarchical porous carbon nanosheets for all-solid-state supercapacitors | |
| Zhang et al. | Top-down strategy to synthesize mesoporous dual carbon armored MnO nanoparticles for lithium-ion battery anodes | |
| Zhang et al. | Tissue-derived carbon microbelt paper: a high-initial-coulombic-efficiency and low-discharge-platform K+-storage anode for 4.5 V hybrid capacitors | |
| Wang et al. | Low-cost and high-performance hard carbon anode materials for sodium-ion batteries | |
| Qiu et al. | Biomass-derived mesopore-dominant hierarchical porous carbon enabling ultra-efficient lithium ion storage | |
| Cheng et al. | Li-ion capacitor integrated with nano-network-structured Ni/NiO/C anode and nitrogen-doped carbonized metal–organic framework cathode with high power and long cyclability | |
| Shen et al. | Chemically crushed wood cellulose fiber towards high-performance sodium-ion batteries | |
| Deng et al. | 1D nanostructured Na7V4 (P2O7) 4 (PO4) as high-potential and superior-performance cathode material for sodium-ion batteries | |
| Liu et al. | High-performance sodium-ion capacitor constructed by well-matched dual-carbon electrodes from a single biomass | |
| Lyu et al. | Carbon coated porous titanium niobium oxides as anode materials of lithium-ion batteries for extreme fast charge applications | |
| Yan et al. | Hard@ soft integrated morning glory like porous carbon as a cathode for a high-energy lithium ion capacitor | |
| Liang et al. | High-energy flexible quasi-solid-state lithium-ion capacitors enabled by a freestanding rGO-encapsulated Fe 3 O 4 nanocube anode and a holey rGO film cathode | |
| Qu et al. | Synthesis of high reversibility anode composite materials using T-Nb2O5 and coal-based graphite for lithium-ion battery applications | |
| Zhang et al. | Lithium ion capacitor with identical carbon electrodes yields 6 s charging and 100 000 cycles stability with 1% capacity fade | |
| Kong et al. | Encapsulating V2O3 nanoparticles in carbon nanofibers with internal void spaces for a self-supported anode material in superior lithium-ion capacitors | |
| CN105314622A (en) | Method for preparing hetero-atom doped porous carbon material through carbonation of biomass under assistance of molten salt | |
| Yang et al. | High-value utilization of lignin to prepare functional carbons toward advanced lithium-ion capacitors | |
| Wang et al. | Structure interlacing and pore engineering of Zn2GeO4 nanofibers for achieving high capacity and rate capability as an anode material of lithium ion batteries | |
| CN101870466A (en) | Preparation method of electrode material graphene nanometer sheet and electrode sheet prepared therefrom | |
| CN102496475B (en) | A kind of super capacitor electrode sheet based on Graphene and preparation method thereof | |
| Shi et al. | Porous carbon with willow-leaf-shaped pores for high-performance supercapacitors | |
| Wu et al. | Boosted storage kinetics in thick hierarchical micro–nano carbon architectures for high areal capacity li‐ion batteries | |
| Tian et al. | Resilient Energy Storage under High-Temperature with In-Situ-Synthesized MnO x@ Graphene as Anode | |
| Zhang et al. | Morphological and structural evolution of MnO@ C anode and its application in lithium-ion capacitors | |
| Guo et al. | Design and synthesis of highly porous activated carbons from Sargassum as advanced electrode materials for supercapacitors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU NO.6 ELEMENT MATERIAL TECHNOLOGY CO., LT Free format text: FORMER OWNER: WUXI NO.6 ELEMENT HIGH-TECH DEVELOPMENT CO., LTD. Effective date: 20130122 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214000 WUXI, JIANGSU PROVINCE TO: 213100 CHANGZHOU, JIANGSU PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20130122 Address after: 213100 building -8, No. 9 West Taihu Road, Wujin Economic Development Zone, Jiangsu, Changzhou Applicant after: The Sixth Element (Changzhou) Ltd. Address before: The government and the District of Huishan Avenue, 214000 Jiangsu city of Wuxi province No. 381 Jiangsu WITHUB Digital Information Industrial Park Business Park building 36 Applicant before: Wuxi No.6 Element High-Tech Development Co., Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120613 Assignee: The Sixth Element (Changzhou) Ltd. Assignor: Wuxi No.6 Element High-Tech Development Co., Ltd. Contract record no.: 2012320010050 Denomination of invention: Grapheme-based electrode plate of super capacitor and preparation method for electrode plate License type: Exclusive License Record date: 20120327 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Grapheme-based electrode plate of super capacitor and preparation method for electrode plate Effective date of registration: 20171228 Granted publication date: 20150902 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: The Sixth Element (Changzhou) Ltd. Registration number: 2017320000070 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180713 Granted publication date: 20150902 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: The Sixth Element (Changzhou) Ltd. Registration number: 2017320000070 |