CN108314038A - A method of preparing electrode material for super capacitor using waste rubber powder pyrolysis - Google Patents
A method of preparing electrode material for super capacitor using waste rubber powder pyrolysis Download PDFInfo
- Publication number
- CN108314038A CN108314038A CN201810264194.4A CN201810264194A CN108314038A CN 108314038 A CN108314038 A CN 108314038A CN 201810264194 A CN201810264194 A CN 201810264194A CN 108314038 A CN108314038 A CN 108314038A
- Authority
- CN
- China
- Prior art keywords
- rubber powder
- waste rubber
- electrode material
- super capacitor
- carbon
- 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.)
- Pending
Links
Classifications
-
- 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
- H01G11/44—Raw materials therefor, e.g. resins or coal
-
- 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
- H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
-
- 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 discloses a kind of methods preparing electrode material for super capacitor using waste rubber powder pyrolysis, are as follows：Waste rubber powder is placed in tubular type Muffle furnace, inert gas is passed through, is pyrolyzed at high temperature, regenerated carbon is obtained after cooling.Regenerated carbon is put into mortar, the potassium hydroxide powder of phase homogenous quantities is added, grinding, by washing, filtering, until neutral, vacuum drying obtains the carbon material of Heteroatom doping.The advantage of the invention is that：The present invention waste rubber powder is obtained by high temperature cabonization Heteroatom doping carbon material have many advantages, such as it is easy to operate, yield it is high, it can be achieved that industrialization.The advantages that carbon material of the Heteroatom doping that the present invention obtains conductive good, good cycling stability, excellent heat stability, electrode material is can be used as to be applied in ultracapacitor, Technical Reference is provided for recycling for scrap rubber, there is good prospects for commercial application.
Description
Technical field
The present invention relates to the preparation fields of the electrode material of ultracapacitor more particularly to a kind of utilization waste rubber powder to be pyrolyzed
The method for preparing electrode material for super capacitor.
Background technology
With the fast development of rubber industry and the fast development of automobile industry, the yield of damaged tire sharply increases, thus
Bring a series of environmental problem.How the recycling of scrap rubber is realized, the hot spot for becoming the concern of researcher is asked
One of topic.
Waste rubber powder refers to that the waste rubber products such as waste tire, rubber boots, rubber gloves, sebific duct, adhesive tape are raw material, through grinding
Grind the fine grained or powder formed.
Currently, the advantages that pyrolytic technique is because of its relatively low discharge amount of pollution and higher energy recovery rate, becomes and locates in recent years
Manage common one of the method for waste rubber powder.Application No. is CN201310534302.2 to disclose a kind of scrap rubber plastic products pyrolysis
Charcoal ash disposal is modified the method and system of preparation, regeneration carbon black, and regenerated carbon is prepared in the pyrolysis of scrap rubber plastic products, acid, alkali process
It is black.Application No. is CN201610251249.9 to disclose the side that a kind of pyrolysis of scrap rubber two-step catalysis prepares high aromatic hydrocarbons liquefaction oil
Method is liquefied at a slow speed by scrap rubber pretreatment, low temperature, pyrolysis gas, aromatic hydrocarbons is prepared in the series of process such as high-temperature quick solution
Liquefaction oil and carbon black.But these technologies there are preparation sections it is complicated, equipment requirement is high the shortcomings of.
By waste rubber powder pyrolysis gained Heteroatom doping carbon material for ultracapacitor electrode material there is not yet
Report.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the method that this patent is related to is prepared by a kind of be pyrolyzed using waste rubber powder
The method of electrode material for super capacitor；Carbon material after waste rubber powder pyrolysis is the carbon material of the Heteroatom dopings such as S, N；Through strong
After alkali process gained carbon material, specific surface area increase, to improve the contact area of electrode material and electrolyte, be conducive to from
The fast exchange of son；After Heteroatom doping, the energy storage function of the electrode obtained material is greatly improved.
The present invention is achieved through the following technical solutions, and the present invention provides a kind of prepared using waste rubber powder pyrolysis to surpass
The method of grade capacitor electrode material, includes the following steps：
Step 1）Regenerated carbon is prepared in waste rubber powder pyrolysis；
Step 2）The carbon material of Heteroatom doping is prepared in regenerated carbon activation process.
One kind as the method for the present invention for preparing electrode material for super capacitor using waste rubber powder pyrolysis is excellent
Change scheme, step 1）It refers to that waste rubber powder is placed in tubular type Muffle that regenerated carbon, which is prepared, in the waste rubber powder pyrolysis
In stove, it is passed through inert gas, 1 ~ 8 h of carbonization is carried out at 700 ~ 1000 DEG C, regenerated carbon is obtained after cooling.
One kind as the method for the present invention for preparing electrode material for super capacitor using waste rubber powder pyrolysis is excellent
Change scheme, the waste rubber powder refer to the rubber powder being ground into as raw material using waste tire.
One kind as the method for the present invention for preparing electrode material for super capacitor using waste rubber powder pyrolysis is excellent
Change scheme, the inert gas are nitrogen or argon gas.
One kind as the method for the present invention for preparing electrode material for super capacitor using waste rubber powder pyrolysis is excellent
Change scheme, step 2）The carbon material that Heteroatom doping is prepared in the regenerated carbon activation process refers to living again
Property charcoal be put into mortar, be added strong base substance, grind 30min ~ 2h；Miscellaneous original is obtained by washing, suction filtration, washing, vacuum drying
The carbon material of son doping.
One kind as the method for the present invention for preparing electrode material for super capacitor using waste rubber powder pyrolysis is excellent
Change scheme, step 2）The strong base substance refers to potassium hydroxide or sodium hydroxide.
One kind as the method for the present invention for preparing electrode material for super capacitor using waste rubber powder pyrolysis is excellent
Change scheme, step 2）The regenerated carbon and the dosage mass ratio of the strong base substance are 1:1.
The advantage of the invention is that：The carbon material of Heteroatom doping prepared by the present invention, with good electric conductivity and surely
The advantages that qualitative；Under an inert atmosphere by waste rubber powder, by being pyrolyzed under hot conditions, obtained carbon material, because of skeleton knot
Atomic orbital energy level can be reduced containing hetero atoms such as S, N in structure, compared with common carbon material, there is apparent electrochemistry
Energy；Waste rubber powder has a large amount of cracking gas spilling when being pyrolyzed when, the cavernous structure being consequently formed improves the ratio table of carbon material
Area improves ion-exchanging efficiency as electrode material in use, increasing the contact area of electrolyte and electrode material.
In addition, method provided by the invention, have many advantages, such as easy to operate, yield is high, it can be achieved that industrialization；The present invention obtains
The carbon material of the Heteroatom doping arrived is with simple for process, of low cost, electric conductivity is good, good cycling stability, thermal stability
The advantages that excellent, can be used as electrode material and be applied in ultracapacitor, and Technical Reference is provided for recycling for scrap rubber,
With good prospects for commercial application.
Description of the drawings
Fig. 1 is the carbon material of 2 Heteroatom doping of embodiment（C-800）50 mV/s are scanned in 1 mol/L aqueous sulfuric acids
Cyclic voltammetry curve under speed, wherein abscissa are current potential, and ordinate is electric current.
Fig. 2 be embodiment 2 in 1 mol/L aqueous sulfuric acids, the carbon material of Heteroatom doping（C-800）In different electric currents
Density（1 A/g、2 A/g、3A/g、5 A/g）Under charging and discharging curve, wherein abscissa be the time, ordinate is current potential.
Fig. 3 be embodiment 1-3 in 1 mol/L aqueous sulfuric acids, in different current densities（1 A/g、2 A/g、3A/g、5
A/g）Under, the carbon material of Heteroatom doping（C-700, C-800 and C-900）Specific capacity value, wherein abscissa be current density,
Ordinate is specific capacity value.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, right with reference to the accompanying drawings of the specification
The specific implementation mode of the present invention is described in detail.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
Implemented different from other manner described here using other, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
Embodiment 1
Waste-tyre rubber-powder is put into tubular type Muffle furnace, under the protection of nitrogen, is warming up to 700 DEG C, 2h is kept the temperature, after cooling
Obtain regenerated carbon；Regenerated carbon is put into mortar, the potassium hydroxide powder of phase homogenous quantities is added, grinds 30min, is led to
It crosses washing, filter, until neutral, vacuum drying for 24 hours, obtains, containing the carbon material of the Heteroatom dopings such as S, N, being denoted as C-700.
Embodiment 2
Waste-tyre rubber-powder is put into tubular type Muffle furnace, under the protection of nitrogen, is warming up to 800 DEG C, 2h is kept the temperature, after cooling
Obtain regenerated carbon；Regeneration carbon black is put into mortar, the potassium hydroxide powder of phase homogenous quantities is added, 30min is ground, passes through
Washing filters, until neutral, vacuum drying for 24 hours, obtains, containing the carbon material of the Heteroatom dopings such as S, N, being denoted as C-800.
The present embodiment prepares the carbon material of Heteroatom doping（C-800）50 mV/s are scanned in 1 mol/L aqueous sulfuric acids
Cyclic voltammetry curve under speed, is shown in Fig. 1；Wherein abscissa is current potential, and ordinate is electric current.
The present embodiment prepares the carbon material of Heteroatom doping（C-800）In 1 mol/L aqueous sulfuric acids, and in different electricity
Current density（1 A/g、2 A/g、3A/g、5 A/g）Under charging and discharging curve, see Fig. 2；Wherein abscissa is the time, and ordinate is
Current potential.
Cyclic voltammetry curve obtained by Fig. 1 is in class rectangle shape, shows that the electrical conduction mechanism of the carbon material of Heteroatom doping is double
Electric layer mechanism.One group of redox peaks in figure corresponding to 0.25V/0.5V, representing material has apparent fake capacitance electrochemistry
Performance.This is because leading to adjacent C containing hetero atoms such as polarized strong S, N in the skeleton structure of the carbon material of Heteroatom doping
Atom shows electropositivity, the transfer of this charge so that material has the chemical property of fake capacitance.With common carbon material phase
Than the carbon material of gained Heteroatom doping is in two kinds of electrical conduction mechanisms（Electric double layer, fake capacitance）Double action under, material have it is good
Good chemical property.
Fig. 2 is that the carbon material of Heteroatom doping is prepared in different current densities by embodiment 2（1,2,3 and 5A/g）Under
Constant current density under charge-discharge performance figure.Charging and discharging curve shows class Triangle-Profile and becomes linearly over time substantially
Change, illustrates it with good capacitive property, specific capacity is respectively 266F/g, 257F/g, 217F/g and 208F/g.And it is super
Ratio electricity of the carbon material under 1A/g current densities used in capacitor be about 150-220F/g, thus gained Heteroatom doping
Carbon material can be used as the electrode material of ultracapacitor to use.Hetero atom is mixed obtained by this waste rubber powder by high temperature pyrolysis
Miscellaneous carbon material is applied in ultracapacitor, and Technical Reference is provided for recycling for scrap rubber.
Embodiment 3
Waste-tyre rubber-powder is put into tubular type Muffle furnace, under the protection of nitrogen, is warming up to 900 DEG C, 2h is kept the temperature, after cooling
Obtain regenerated carbon；Regenerated carbon is put into mortar, the potassium hydroxide powder of phase homogenous quantities is added, grinds 30min, is led to
It crosses washing, filter, until neutral, vacuum drying for 24 hours, obtains, containing the carbon material of the Heteroatom dopings such as S, N, being denoted as C-900.
Embodiment 4
By the carbon material, polyfluortetraethylene of binding element, acetylene black in mass ratio 8 of the obtained Heteroatom dopings of embodiment 1-3:1:1
It weighs, ground and mixed is uniform.The mixture is uniformly coated in nickel foam, then obtains work for 24 hours in 100 DEG C of vacuum drying
Electrode is to electrode with platinum electrode, and saturated calomel electrode is reference electrode, forms three-electrode system, electrolyte 1mol/L
Aqueous sulfuric acid, the specific capacity of obtained embodiment 1-3 electrode materials is shown in Fig. 3.
Fig. 3 be embodiment 1-3 in 1 mol/L aqueous sulfuric acids, in different current densities（1 A/g、2 A/g、3A/g、5
A/g）Under, the carbon material of Heteroatom doping（C-700, C-800 and C-900）Specific capacity value, wherein abscissa be current density,
Ordinate is specific capacity value.
Under the conditions of same current density, the specific capacity of C-800 electrode materials is above corresponding to C-700 and C-900
Specific capacity.It can be seen that the electrode material by the way that waste rubber powder progress high temperature pyrolysis can be obtained to ultracapacitor.With carbon
Change gradually increasing for temperature, the specific capacity of electrode material gradually increases, but carburizing temperature is excessively high（More than 900 DEG C）When, then may be used
Can be the thermal decomposition because of framework material, so as to cause the reduction of the chemical property of material.
The foregoing is merely the intersection examples of the present invention, are not intended to limit the invention, to those skilled in the art
For can obviously do many improvement, all within the spirits and principles of the present invention, any modification for being made is replaced on an equal basis
It changes, improve, should be included within the scope of protection of the invention.
Claims (7)
1. a kind of method preparing electrode material for super capacitor using waste rubber powder pyrolysis, it is characterised in that：Including following step
Suddenly：
Step 1）Regenerated carbon is prepared in waste rubber powder pyrolysis；
Step 2）The carbon material of Heteroatom doping is prepared in regenerated carbon activation process.
2. the method according to claim 1 for preparing electrode material for super capacitor using waste rubber powder pyrolysis, feature
It is：Step 1）It refers to that waste rubber powder is placed in tubular type Muffle furnace that regenerated carbon, which is prepared, in the waste rubber powder pyrolysis
In, it is passed through inert gas, 1 ~ 8 h of carbonization is carried out at 700 ~ 1000 DEG C, regenerated carbon is obtained after cooling.
3. the method according to claim 2 for preparing electrode material for super capacitor using waste rubber powder pyrolysis, feature
It is：Step 1）The waste rubber powder refers to the rubber powder being ground into as raw material using waste tire.
4. the method according to claim 2 for preparing electrode material for super capacitor using waste rubber powder pyrolysis, feature
It is：The inert gas is nitrogen or argon gas.
5. the method according to claim 1 or 2 for preparing electrode material for super capacitor using waste rubber powder pyrolysis, special
Sign is：Step 2）The carbon material that Heteroatom doping is prepared in the regenerated carbon activation process refers to living again
Property charcoal be put into mortar, be added strong base substance, grind 30min ~ 2h；Miscellaneous original is obtained by washing, suction filtration, washing, vacuum drying
The carbon material of son doping.
6. the method according to claim 5 for preparing electrode material for super capacitor using waste rubber powder pyrolysis, feature
It is：Step 2）The strong base substance refers to potassium hydroxide or sodium hydroxide.
7. the method according to claim 5 for preparing electrode material for super capacitor using waste rubber powder pyrolysis, feature
It is：Step 2）The regenerated carbon and the dosage mass ratio of the strong base substance are 1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264194.4A CN108314038A (en) | 2018-03-28 | 2018-03-28 | A method of preparing electrode material for super capacitor using waste rubber powder pyrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264194.4A CN108314038A (en) | 2018-03-28 | 2018-03-28 | A method of preparing electrode material for super capacitor using waste rubber powder pyrolysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108314038A true CN108314038A (en) | 2018-07-24 |
Family
ID=62900360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810264194.4A Pending CN108314038A (en) | 2018-03-28 | 2018-03-28 | A method of preparing electrode material for super capacitor using waste rubber powder pyrolysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108314038A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112110446A (en) * | 2020-09-01 | 2020-12-22 | 华中科技大学 | Method and system for preparing fuel oil and electrode carbon material by comprehensively treating waste radial tires |
| CN112875811A (en) * | 2021-01-19 | 2021-06-01 | 南京工业大学 | Method for preparing electrocatalytic gas diffusion electrode by using waste tires |
| CN113372737A (en) * | 2021-07-22 | 2021-09-10 | 四川轻化工大学 | Preparation method of waste tire thermal cracking carbon black electrode material for super capacitor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012059A (en) * | 2006-12-08 | 2007-08-08 | 清华大学 | Method of manufacturing active carbon for waste water treatment using waste tyre |
| CN101708841A (en) * | 2009-11-13 | 2010-05-19 | 南开大学 | Method for preparing activated carbon by utilizing waste tire rubber |
| CN102214516A (en) * | 2011-03-17 | 2011-10-12 | 南开大学 | Method for preparing capacitor electrode material from waste tire pyrolytic carbon |
| US20160351346A1 (en) * | 2015-05-26 | 2016-12-01 | Ut-Battelle, Llc | Flexible and conductive waste tire-derived carbon/polymer composite paper as pseudocapacitive electrode |
| CN106241803A (en) * | 2016-07-25 | 2016-12-21 | 河南东和环保科技股份有限公司 | A kind of method utilizing waste tyre pyrolytic white carbon black to make activated carbon |
-
2018
- 2018-03-28 CN CN201810264194.4A patent/CN108314038A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012059A (en) * | 2006-12-08 | 2007-08-08 | 清华大学 | Method of manufacturing active carbon for waste water treatment using waste tyre |
| CN101708841A (en) * | 2009-11-13 | 2010-05-19 | 南开大学 | Method for preparing activated carbon by utilizing waste tire rubber |
| CN102214516A (en) * | 2011-03-17 | 2011-10-12 | 南开大学 | Method for preparing capacitor electrode material from waste tire pyrolytic carbon |
| US20160351346A1 (en) * | 2015-05-26 | 2016-12-01 | Ut-Battelle, Llc | Flexible and conductive waste tire-derived carbon/polymer composite paper as pseudocapacitive electrode |
| CN106241803A (en) * | 2016-07-25 | 2016-12-21 | 河南东和环保科技股份有限公司 | A kind of method utilizing waste tyre pyrolytic white carbon black to make activated carbon |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112110446A (en) * | 2020-09-01 | 2020-12-22 | 华中科技大学 | Method and system for preparing fuel oil and electrode carbon material by comprehensively treating waste radial tires |
| CN112875811A (en) * | 2021-01-19 | 2021-06-01 | 南京工业大学 | Method for preparing electrocatalytic gas diffusion electrode by using waste tires |
| CN112875811B (en) * | 2021-01-19 | 2022-08-05 | 南京工业大学 | Method for preparing electrocatalytic gas diffusion electrode by using waste tires |
| CN113372737A (en) * | 2021-07-22 | 2021-09-10 | 四川轻化工大学 | Preparation method of waste tire thermal cracking carbon black electrode material for super capacitor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106430186B (en) | A kind of preparation method and applications of sweet potato leaves matrix activated carbon | |
| CN108314038A (en) | A method of preparing electrode material for super capacitor using waste rubber powder pyrolysis | |
| CN103035916B (en) | Preparation method of a kind of nano-stannic oxide-graphene composite material and products thereof | |
| CN106449156A (en) | Method for preparing porous nitrogen-doped graphene material for capacitor electrode | |
| CN103824702A (en) | Method for manufacturing nitrogen/phosphorus codoped shrimp shell base porous carbon electrode material | |
| CN104103430A (en) | Preparation method of fluorine and nitrogen codoped graphitized carbon microspheres with high volume specific capacitance | |
| CN111463017B (en) | Asphalt alkenyl porous carbon nanosheet for supercapacitor and preparation method thereof | |
| CN106910638A (en) | A kind of is carbon material and its preparation method and application of template based on Zr MOFs composites | |
| CN102214516A (en) | Method for preparing capacitor electrode material from waste tire pyrolytic carbon | |
| CN113955756B (en) | Carbonized amino acid modified lignin and preparation method thereof | |
| CN105244178A (en) | Super capacitor and preparation method thereof | |
| CN109473288B (en) | Method for preparing three-dimensional graphene/foamed nickel composite material | |
| CN110155981A (en) | A kind of preparation method of the supercapacitor porous charcoal nanometer sheet of nitrogen sulphur codope | |
| CN110407258A (en) | The method for freshly prepared positive electrode of laying equal stress on is recycled in ternary material | |
| CN106653390A (en) | Nitrogen and phosphorus co-doped composite material, preparation method and application and capacitor electrode | |
| CN107680826B (en) | A kind of preparation method of the layering porous active carbon electrode material for supercapacitor | |
| CN110600702A (en) | Composite material for core-shell structure secondary battery using waste diaphragm as raw material, preparation and application thereof | |
| CN110931267B (en) | Nickel-cobalt-molybdenum ternary metal sulfide and preparation method and application thereof | |
| CN103545115A (en) | Graphene-carbon nano tube composite material, preparation method thereof and super capacitor | |
| CN103839691A (en) | Nitrogen-doped graphene composite material, preparation method thereof, electrode plate and supercapacitor | |
| CN117003235A (en) | Method for regenerating graphite in waste battery | |
| CN110182781A (en) | A kind of preparation method of supercapacitor three-dimensional framework charcoal nanometer sheet | |
| CN110867325A (en) | Nitrogen-rich oxygen-sulfur co-doped micro-mesoporous intercommunicating carbon microsphere as well as preparation method and application thereof | |
| CN113321201B (en) | Porous carbon material based on waste recovered epoxy resin and preparation method and application thereof | |
| CN110690063A (en) | NiCo2S4Green preparation of @ ACF electrode material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180724 |
|
| RJ01 | Rejection of invention patent application after publication |