CN105417540A - Method for preparing biomass activated carbon and application of biomass activated carbon to lithium sulfur batteries - Google Patents
Method for preparing biomass activated carbon and application of biomass activated carbon to lithium sulfur batteries Download PDFInfo
- Publication number
- CN105417540A CN105417540A CN201510753609.0A CN201510753609A CN105417540A CN 105417540 A CN105417540 A CN 105417540A CN 201510753609 A CN201510753609 A CN 201510753609A CN 105417540 A CN105417540 A CN 105417540A
- Authority
- CN
- China
- Prior art keywords
- activated carbon
- activated sludge
- natural plant
- preparation
- activated
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- 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
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a method for preparing biomass activated carbon and application of the biomass activated carbon to lithium sulfur batteries. The method includes crushing natural plant materials, soaking the natural plant materials in zinc chloride solution and then freezing the natural plant materials until the natural plant materials are in solid states; carbonizing solid at high temperatures to obtain the biomass activated carbon with rich pores, large specific surface areas and flat, narrow and long macroporous structures. The method and the application have the advantages that the biomass activated carbon and sulfur can be combined with each other to obtain biomass activated carbon/sulfur composite anode materials, anodes further can be manufactured, and the lithium sulfur batteries are high in sulfur active substance utilization rate, specific discharge capacity and coulomb efficiency and good in circulation stability when the biomass activated carbon is applied to the lithium sulfur batteries.
Description
Technical field
The present invention relates to a kind of preparation method with the activated carbon from activated sludge of flat long and narrow macroporous structure, and the application of this activated carbon from activated sludge in lithium sulfur battery anode material, belong to lithium-sulfur cell field.
Background technology
The world today, the development of electromobile is in the ascendant, and the bottleneck of its development is power cell.Current lithium ion battery, positive electrode material specific storage is up to 200mAh/g, and the highest about 250Wh/kg of battery energy density, can not meet further developing of electromobile far away.Lithium-sulfur cell is battery system of new generation, and the specific storage of sulphur is up to 1675mAh/g, and with lithium sheet for negative pole, the energy density of battery, up to 2600Wh/kg, is desirable power cell system.In addition, Sulphur ressource enriches, and low price, environmental friendliness, this show further the application prospect of its light.
But there is some born defect due to lithium-sulfur cell, its application is not yet launched.These defects mainly contain, one be sulphur and reaction product lithium sulfide is all isolator, so can not directly as electrode use, two be cell reaction intermediate product easily in existing electrolyte system dissolve diffusion, this phenomenon can cause battery coulombic efficiency and stable circulation performance low.Therefore improve positive electrode material electroconductibility, it is two the main aspects improving lithium-sulfur cell performance that suppression or minimizing polysulfide dissolve in electrolytic solution.
In order to address these problems, people mainly adopt sulphur is combined the method making matrix material with electro-conductive materials, wherein carbon material obtains due to its good conductivity and mechanical property and studies widely, some material particularly nano material, as Graphene, carbon nanotube etc., all obtains very good chemical property when applying in lithium-sulphur cell positive electrode, but just at present, these materials application are general not enough, because its production in enormous quantities technique is also immature, with high costs.And the gac wide material sources in carbon material, mature production technology, cheap, hole is flourishing, and specific surface area is large, excellent adsorption, electroconductibility is good, and also fairly simple with the recombining process of sulphur, these also all meet the application requiring in lithium sulfur battery anode material.The material preparing gac is a lot, and the Gu of Australian Ge Li Fes university, Xingxing do activated carbon raw material with bamboo and produce sulphur carbon composite positive pole, sulphur content about 50%, and under the multiplying power of about 0.5C after charge and discharge cycles 150 times, specific storage remains on 550mAhg
-1.Certainly, be that raw material meaning is larger with agricultural waste material, can realize turning waste into wealth, the JinxinGuo of Zhejiang Normal University take corn cob as raw material production sulphur carbon composite, sulphur content about 44%, and discharge first 1600mAhg under the multiplying power of 0.1C
-1, after charge and discharge cycles 50 times, specific storage remains on 554mAhg
-1.
But above method does not all consider emphatically the impact of pore texture on battery performance.The gac obtained due to different raw materials has different pore textures, there are some and are not suitable for efficiently carrying out of electrochemical reaction in battery, one of them major reason is that sulphur is adsorbed in gac becomes matrix material, what first enter is macropore in gac, more tiny and the mesopore of prosperity and micropore is diffused into gradually again by macropore, if sulphur does not fully contact with electrolytic solution in macropore, the problem that the utilization ratio of sulphur is low will be produced, be unfavorable for the potentiality playing electrode materials further.
Summary of the invention
For the defect that existing lithium sulfur battery anode material exists, the object of the present invention is to provide one to prepare and there is special flat and long and narrow macroporous structure, and be particularly useful for making the method for the activated carbon from activated sludge of activated carbon from activated sludge/sulphur composite positive pole.
Another object of the present invention is to provide a kind of described gac and is preparing the application method of lithium sulfur battery anode material, activated carbon from activated sludge/sulphur the composite positive pole of preparation is applied in lithium-sulfur cell that to show sulphur active material utilization high, specific discharge capacity and coulombic efficiency high, the feature that stable circulation performance is good.
In order to realize technical purpose of the present invention, the invention provides a kind of preparation method of activated carbon from activated sludge, this preparation method is that natural plant material is broken and after being placed in liquor zinci chloridi immersion, is refrigerated to solid-state; Gained solids is placed in the environment that initial temperature is not less than 100 DEG C, and carries out high temperature carbonization with ramp to 500 ~ 650 of 10 ~ 15 DEG C/min DEG C; Carbonizing production through overcooling, pickling, drying, to obtain final product successively.
Technical scheme of the present invention first with the discarded natural plant material such as nut-shell, Pericarppium arachidis hypogaeae, happy shell for raw material, by special freezing method, puffing process is carried out to natural plant material, again in conjunction with certain high temperature carbonization system, obtained gac hole is flourishing, specific surface area is enriched, especially there is flat sleeve configuration macroporous structure, the longest part in macropore cross section below 2 μm, and most major diameter to most minor axis to ratio more than 3.
The preparation method of described activated carbon from activated sludge of the present invention also comprises following preferred version.
Preferred scheme, natural plant material is at least one in Pericarppium arachidis hypogaeae, nut-shell, happy shell, or is other cellulosic vegetable material.The raw material range that technical scheme of the present invention adapts to is wide, is mainly derived from discarded vegetable material, has the advantage of cheapness, environmental protection.
Preferred scheme, natural plant material is the time of soaking in the liquor zinci chloridi of 15wt% ~ 25wt% in concentration is more than 20h, or by stirring auxiliary immersion more than 10h.Preferred scheme, by enough soak times, makes zinc chloride fully infiltrate vegetable material inside, is conducive to the generation of hole.
Preferred scheme, the mass ratio of natural plant material and liquor zinci chloridi is 1:3 ~ 1:5.
More preferably scheme, the massfraction of liquor zinci chloridi is 20%.
Preferred scheme, natural plant material is crushed to mean particle size at below 5mm.
Preferred scheme, the natural plant material after soaking in liquor zinci chloridi is refrigerated to solid-state at low temperature environment and preserves at least 48h.Enough freezing times are more conducive to the fluffy of vegetable material fibrous texture, are conducive to the generation of pore structure.Freezing temp is preferably below-20 DEG C.
Preferred scheme, carbonization time is 1.5 ~ 3 hours.Be preferably 1.5 ~ 2h.
Preferred scheme, best carbonization temperature is 550 DEG C, carbonization time 1.5h.
Preferred scheme, the activated carbon from activated sludge obtained has flat sleeve configuration macroporous structure, and flat sleeve configuration macropore maximum diameter is below 2 μm, major diameter to minor axis to ratio more than 3.
Present invention also offers the application of the activated carbon from activated sludge that described preparation method obtains, it is characterized in that, be applied to and prepare lithium sulfur battery anode material.
Activated carbon from activated sludge prepared by the present invention has flat sleeve configuration macroporous structure, and this elliptical shaped apertures opposing circular hole has larger girth area ratio.Gac and sulphur compound, when sulphur is full of gac macropore, the sulphur at elliptical aperture center obviously than the sulphur at circular port center closer to conductive hole wall, so the sulphur concentrated in the middle of hole is less, the active substance be adsorbed in the middle of hole fully can be contacted with between hole wall and electrolytic solution, more be conducive to the hole diffusion of its less rank on hole wall, be also conducive to the exchange of ion-electron during electrochemical reaction, thus be conducive to controlling and suppress polysulfide to spread in electrolytic solution.So have activated carbon from activated sludge/sulphur composite positive pole that the activated carbon from activated sludge of flat sleeve configuration macroporous structure and sulphur is compounded to form, the chemical reaction in lithium-sulfur cell is more abundant, has specific discharge capacity high, the feature that capability retention is good.
In preferred scheme, after gac mixes with sulphur, through 120 DEG C ~ 140 DEG C Temperature Treatment 1 ~ 3h, obtain activated carbon from activated sludge/sulphur composite positive pole.By the method, sulphur is fully infiltrated in the hole of gac, realize the fully fixing of sulphur, be conducive to preventing sulphur from spreading to the dissolving of electrolytic solution.More preferably scheme, after gac mixes with sulphur, through 135 DEG C of Temperature Treatment 2h, obtains activated carbon from activated sludge/sulphur composite positive pole.
In preferred scheme, in the mixture of activated carbon from activated sludge and sulphur, the mass percentage content of sulphur is 40% ~ 70% compound.
Lithium-sulphur cell positive electrode preparation process of the present invention is as follows:
Step one: raw-material pre-treatment
By natural plant raw material cleaning also dry rear weighing, be the ZnCl of 15% ~ 25% with mass percentage content
2solution mixes according to the quality solid-liquid ratio of 1:3 ~ 1:5, after fully soaking (the static soak time is at least 20 hours, soaks if stirred, and the time can foreshorten to 10 hours), carries out freezing treatment, for ensureing containing ZnCl
2the natural plant raw material of solution is fully frozen into all solid state, and freezing temperature at least will at subzero less than 20 degrees Celsius;
Step 2: the preparation of gac
It is that the stove of more than 100 DEG C is heated to 550 ~ 600 DEG C with the rate uniform of 10 ~ 15 DEG C/min that freezing rear mixture puts into initial temperature at once, is incubated 1.5 ~ 3 hours, takes out and be cooled to room temperature after cooling to about 100 DEG C afterwards with the furnace; In carbonization process, frozen mixture is contained in high-temperature resistant container with cover; By charing and activation after natural plant raw material put into mass percentage content be 10% ~ 20% dilute hydrochloric acid soak half an hour to 1 hour, after filtration, repeatedly rinse to close to neutral with distilled water again, be then dried quality and no longer change, just obtain activated carbon from activated sludge;
Step 3: the preparation of activated carbon from activated sludge/sulphur matrix material
Activated carbon from activated sludge is mixed with sulphur, sulphur content controls at 40wt% ~ 70wt%, be loaded in high-temperature resistant container, put into vacuum environment to heat, be evacuated to-0.1MPa, be heated to 100 ~ 140 DEG C, be incubated 2 ~ 3 hours, take out after being cooled to room temperature, grind and obtain activated carbon from activated sludge/sulphur matrix material.
The assemble method of lithium-sulfur cell: obtained matrix material is mixed with certain proportion with acetylene black and polyvinylidene difluoride (PVDF) (PVDF), with N-Methyl pyrrolidone (NMP) for slurry prepared by solvent, be coated on aluminium foil, after drying, be cut into pole piece.In the glove box being full of argon gas with sanction pole piece for positive pole, lithium sheet is negative pole, and Celgard2400 polypropylene film is barrier film, LiTFSI-DOL/DME (1:1 volume ratio, DOL:1, the 3-dioxolane of 1mol/L; DME: glycol dimethyl ether) be assembled into 2016 type button cells for electrolytic solution.Button cell assembles latter standing more than 24 hours, carries out subsequent electrochemical test.
Relative to prior art, the Advantageous Effects that technical scheme of the present invention is brought:
1, hole is flourishing, and specific surface area is enriched, and especially has the activated carbon from activated sludge of flat long and narrow macroporous structure; The longest part in the macropore cross section of gac below 2 μm, and most major diameter to most minor axis to ratio more than 3.
2, the elliptical shaped apertures that the activated carbon from activated sludge with flat long and narrow macroporous structure has has larger girth area ratio relative to circular holes, by itself and sulphur compound, when sulphur is full of macropore, the sulphur at elliptical aperture center obviously than the sulphur at circular port center closer to conductive hole wall, so the sulphur concentrated in the middle of hole is less, the active substance be adsorbed on wherein fully can be contacted with electrolytic solution with hole wall, more be conducive to the hole diffusion of its less rank on hole wall, also the exchange of ion-electron during electrochemical reaction is conducive to, thus be conducive to controlling and suppress polysulfide to spread in electrolytic solution, specific discharge capacity is high, capability retention is good.
3, draw materials extensive and cheap, equipment is simple, and processing condition also easily reach, and consume energy low, are convenient to suitability for industrialized production and application.
Accompanying drawing explanation
[Fig. 1] is that the gac SEM that embodiment 1 obtains schemes;
[Fig. 2] is that the gac that embodiment 1 obtains amplifies SEM figure further;
[Fig. 3] is discharge and recharge and the coulombic efficiency figure of lithium-sulfur cell front 100 circulations under 0.2C that embodiment 1 obtains.
Embodiment:
Following examples further illustrate of the present invention, instead of the protection domain of restriction the claims in the present invention.
Embodiment 1
Step 1: raw-material pre-treatment
The Pericarppium arachidis hypogaeae of certain mass is crushed to particulate state, particle diameter≤5mm, puts it in distilled water to rinse and remove dust and other impurity, in be dried to quality and no longer reduce, getting this Pericarppium arachidis hypogaeae a certain amount of, is the ZnCl of 20% with massfraction
2solution mixes with feed liquid mass ratio 1:4, and encapsulation immersion 24 hours, goes to mixture in ceramic crucible, put into freezing freezer, subzero less than 20 DEG C freezing 60 hours.
Step 2: the preparation of gac
Mixture after freezing is taken out, adds a cover rear initial temperature of putting into rapidly at the retort furnace of about 100 DEG C, be heated to 550 DEG C with the speed of 10 DEG C/min, be incubated 2 hours at such a temperature, take out after making it naturally cool to about 100 DEG C, naturally cool to room temperature.By products therefrom take out, put into the massfraction prepared be 15% dilute hydrochloric acid soak 30 minutes to remove the ash content of gac.Overanxious go out gac, put into distilled water and repeatedly rinse, filter after neutral, take out gac and put into loft drier dry 12 hours, grind afterwards and cross 200 mesh sieves.
Step 3: the preparation of activated carbon from activated sludge/sulphur matrix material
Gained activated carbon from activated sludge is fully mixed according to the mass ratio of 2:3 with elemental sulfur (analytical pure), put into beaker, vacuum drying oven is put into after adding a cover, be evacuated to-0.1MPa, be heated to 110 DEG C, be incubated 2 hours, be cooled to room temperature subsequently and take out, after grinding distribution, obtain described activated carbon from activated sludge/sulphur matrix material.
The ratio of activated carbon from activated sludge/sulphur matrix material and the graphitized carbon black of preparation and binding agent Pvdf 7:2:1 is in mass ratio mixed, add the abundant stir about of NMP 6 hours, then be coated on aluminium foil with coating machine, in vacuum drying oven, after drying, be pressed into the disk that diameter is 14mm, namely obtain required lithium-sulphur cell positive electrode sheet.In the glove box being full of argon gas, make positive pole with gained positive plate, with lithium sheet for negative pole, Celgard2300 polypropylene film is barrier film, and LiTFSI-DOL/DME is that electrolytic solution is assembled into 2016 type button cells.
After tested, this battery is under the discharge-rate of 0.2C, and first discharge specific capacity is 943mAhg
-1, after charge and discharge cycles 100 times, specific discharge capacity also has 619mAhg
-1, the average coulombic efficiency that discharge and recharge is 500 times is 95%.
The specific surface area parameter comparison table of table 1 activated carbon from activated sludge before and after note sulphur
Embodiment 2
Step 1: raw-material pre-treatment
The Pericarppium arachidis hypogaeae of certain mass is crushed to particulate state, particle diameter≤5mm, put it in distilled water to rinse and remove dust and other impurity, being dried to quality and no longer reducing, get this Pericarppium arachidis hypogaeae a certain amount of, is the ZnCl of 15% with massfraction
2solution mixes with feed liquid mass ratio 1:5, and encapsulation immersion 24 hours, goes to mixture in ceramic crucible, put into freezing freezer, subzero 30 DEG C freezing 48 hours.
Step 2: the preparation of gac
Mixture after freezing is taken out, adds a cover rear initial temperature of putting into rapidly at the retort furnace of about 100 DEG C, be heated to 500 DEG C with the speed of 10 DEG C/min, be incubated 3 hours at such a temperature, take out after making it naturally cool to about 100 DEG C, naturally cool to room temperature.By products therefrom take out, put into massfraction be 10% dilute hydrochloric acid soak 40 minutes to remove the ash content of gac.Overanxious go out gac, put into distilled water and repeatedly rinse, with pH detection paper mixing solutions, filter after neutral, take out gac and put into loft drier dry 12 hours, grind afterwards and cross 200 mesh sieves.
Step 3: the preparation of activated carbon from activated sludge/sulphur matrix material
Gained activated carbon from activated sludge is fully mixed according to the mass ratio of 3:2 with elemental sulfur (analytical pure), put into beaker, vacuum drying oven is put into after adding a cover, be evacuated to-0.1MPa, be heated to 120 DEG C, be incubated 3 hours, be cooled to room temperature subsequently and take out, after grinding distribution, obtain described activated carbon from activated sludge/sulphur matrix material.
According to the method assembling button cell described in embodiment 1, and test, test result shows, under 0.2C discharge-rate, battery discharges 869.7mAhg first
-1, discharge and recharge also has 614mAhg 100 times afterwards
-1, average coulombic efficiency is 96%.
Embodiment 3
Step 1: raw-material pre-treatment
The nut-shell of certain mass is crushed to particulate state, particle diameter≤5mm, put it in distilled water to rinse and remove dust and other impurity, being dried to quality and no longer reducing, get this nut-shell a certain amount of, is the ZnCl of 25% with massfraction
2solution mixes with feed liquid mass ratio 1:3, and encapsulation immersion 24 hours, goes to mixture in ceramic crucible, put into freezing freezer, subzero 25 DEG C freezing 48 hours.
Step 2: the preparation of gac
Mixture after freezing is taken out, adds a cover rear initial temperature of putting into rapidly at the resistance furnace of about 100 DEG C, be heated to 650 DEG C with the speed of 15 DEG C/min, be incubated 1.5 hours at such a temperature, take out after making it naturally cool to about 100 DEG C, be cooled to room temperature.By products therefrom take out, put into massfraction be 20% dilute hydrochloric acid soak 20 minutes to remove the ash content of gac.Overanxious taking-up gac, puts into distilled water and repeatedly rinses, and filters after neutral, takes out and puts into loft drier dry 12 hours, grind afterwards and cross 200 mesh sieves.
Step 3: the preparation of activated carbon from activated sludge/sulphur matrix material
Gained activated carbon from activated sludge is fully mixed according to the mass ratio of 3:7 with elemental sulfur (analytical pure), put into beaker, vacuum drying oven is put into after adding a cover, be evacuated to-0.1MPa, be heated to 140 DEG C, be incubated 2 hours, be cooled to room temperature subsequently and take out, after grinding distribution, obtain described activated carbon from activated sludge/sulphur matrix material.
According to the method assembling button cell described in embodiment 1, and test, test result shows, under 0.2C discharge-rate, battery discharges 757mAhg first
-1, discharge and recharge also has 652mAhg 100 times afterwards
-1, average coulombic efficiency is 92%.
Claims (10)
1. a preparation method for activated carbon from activated sludge, is characterized in that, natural plant material is broken and be placed in after liquor zinci chloridi soaks, and is refrigerated to solid-state; Gained solids is placed in the environment that initial temperature is not less than 100 DEG C, and carries out high temperature carbonization with ramp to 500 ~ 650 of 10 ~ 15 DEG C/min DEG C; Carbonizing production through overcooling, pickling, drying, to obtain final product successively.
2. the preparation method of activated carbon from activated sludge according to claim 1, is characterized in that, described natural plant material is at least one in Pericarppium arachidis hypogaeae, nut-shell and happy shell, or is other cellulosic vegetable material.
3. the preparation method of activated carbon from activated sludge according to claim 1, is characterized in that, natural plant material is in the liquor zinci chloridi of 15wt% ~ 25wt% in concentration, and the time of immersion is more than 20h, or by stirring auxiliary immersion more than 10h; The mass ratio of natural plant material and liquor zinci chloridi is 1:3 ~ 1:5.
4. the preparation method of activated carbon from activated sludge according to claim 1, is characterized in that, natural plant material is crushed to mean particle size at below 5mm.
5. the preparation method of activated carbon from activated sludge according to claim 1, is characterized in that, the natural plant material after soaking in liquor zinci chloridi is refrigerated to solid-state at low temperature environment and keeps at least 48h.
6. the preparation method of activated carbon from activated sludge according to claim 1, is characterized in that, carbonization time is 1.5 ~ 3 hours.
7. the preparation method of the activated carbon from activated sludge according to any one of claim 1 ~ 6, it is characterized in that, the activated carbon from activated sludge obtained has flat sleeve configuration macroporous structure, and flat sleeve configuration macropore maximum diameter is below 2 μm, major diameter to minor axis to ratio more than 3.
8. the application of activated carbon from activated sludge that obtains of preparation method according to claim 7, is characterized in that, be applied to and prepare lithium sulfur battery anode material.
9. the application of activated carbon from activated sludge according to claim 8, is characterized in that, after described activated carbon from activated sludge mixes with sulphur, through 120 DEG C ~ 140 DEG C Temperature Treatment 1 ~ 3h, obtains activated carbon from activated sludge/sulphur composite positive pole.
10. the application of activated carbon from activated sludge according to claim 8, is characterized in that, described activated carbon from activated sludge and sulphur is 30 ~ 60%:40 ~ 70% compound in mass ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753609.0A CN105417540B (en) | 2015-11-05 | 2015-11-05 | A kind of preparation method of activated carbon from activated sludge and its application in lithium-sulfur cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753609.0A CN105417540B (en) | 2015-11-05 | 2015-11-05 | A kind of preparation method of activated carbon from activated sludge and its application in lithium-sulfur cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105417540A true CN105417540A (en) | 2016-03-23 |
| CN105417540B CN105417540B (en) | 2017-10-20 |
Family
ID=55496162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510753609.0A Expired - Fee Related CN105417540B (en) | 2015-11-05 | 2015-11-05 | A kind of preparation method of activated carbon from activated sludge and its application in lithium-sulfur cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105417540B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340631A (en) * | 2016-11-28 | 2017-01-18 | 哈尔滨工业大学深圳研究生院 | Lithium-sulfur battery anode material and preparation method thereof and lithium-sulfur battery |
| CN106532012A (en) * | 2016-12-23 | 2017-03-22 | 浙江大学 | Sulfur-biomass carbon/transition metal composite electrode material and preparation method and application thereof |
| CN107151014A (en) * | 2017-06-14 | 2017-09-12 | 武汉理工大学 | A kind of carbon-based lithium sulfur battery anode material of biological stephanoporate and preparation method thereof |
| CN107416827A (en) * | 2017-05-23 | 2017-12-01 | 山东科技大学 | A kind of preparation method of useless tealeaves peanut based active carbon |
| CN108975328A (en) * | 2018-09-25 | 2018-12-11 | 河南师范大学 | A kind of two steps method that carbonization prepares the biomass porous carbon material of nitrogen oxygen codope in advance |
| CN110492065A (en) * | 2019-07-26 | 2019-11-22 | 江苏理工学院 | It is a kind of based on the S/Co/CNF composite material and preparation method of discarded cigarette butt and application |
| CN112038635A (en) * | 2020-08-04 | 2020-12-04 | 湘潭大学 | Lithium-sulfur battery graphene-loaded cementite particle composite positive electrode material and preparation method thereof |
| CN113666356A (en) * | 2021-07-30 | 2021-11-19 | 复旦大学 | Shell biomass-based hard carbon negative electrode material of sodium ion battery and preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177263A (en) * | 2007-11-09 | 2008-05-14 | 曾勇 | Method for producing activative carbon by tobacco solid waste |
| CN103121682A (en) * | 2013-02-05 | 2013-05-29 | 中南大学 | Method for preparing high-specific-surface-area activated carbon from tobacco stalks |
| CN103746101A (en) * | 2013-12-18 | 2014-04-23 | 广西科技大学 | Carbon-sulfur composite positive pole material and preparation method thereof |
| CN104140100A (en) * | 2014-08-18 | 2014-11-12 | 福建师范大学 | Method for preparing micro-porous activated carbon for gas adsorption by virtue of vacuum freeze drying |
-
2015
- 2015-11-05 CN CN201510753609.0A patent/CN105417540B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177263A (en) * | 2007-11-09 | 2008-05-14 | 曾勇 | Method for producing activative carbon by tobacco solid waste |
| CN103121682A (en) * | 2013-02-05 | 2013-05-29 | 中南大学 | Method for preparing high-specific-surface-area activated carbon from tobacco stalks |
| CN103746101A (en) * | 2013-12-18 | 2014-04-23 | 广西科技大学 | Carbon-sulfur composite positive pole material and preparation method thereof |
| CN104140100A (en) * | 2014-08-18 | 2014-11-12 | 福建师范大学 | Method for preparing micro-porous activated carbon for gas adsorption by virtue of vacuum freeze drying |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340631A (en) * | 2016-11-28 | 2017-01-18 | 哈尔滨工业大学深圳研究生院 | Lithium-sulfur battery anode material and preparation method thereof and lithium-sulfur battery |
| CN106532012A (en) * | 2016-12-23 | 2017-03-22 | 浙江大学 | Sulfur-biomass carbon/transition metal composite electrode material and preparation method and application thereof |
| CN107416827A (en) * | 2017-05-23 | 2017-12-01 | 山东科技大学 | A kind of preparation method of useless tealeaves peanut based active carbon |
| CN107151014A (en) * | 2017-06-14 | 2017-09-12 | 武汉理工大学 | A kind of carbon-based lithium sulfur battery anode material of biological stephanoporate and preparation method thereof |
| CN107151014B (en) * | 2017-06-14 | 2020-04-21 | 武汉理工大学 | Biological porous carbon-based lithium-sulfur battery positive electrode material and preparation method thereof |
| CN108975328A (en) * | 2018-09-25 | 2018-12-11 | 河南师范大学 | A kind of two steps method that carbonization prepares the biomass porous carbon material of nitrogen oxygen codope in advance |
| CN108975328B (en) * | 2018-09-25 | 2021-07-20 | 河南师范大学 | Method for preparing nitrogen-oxygen co-doped biomass porous carbon material through two-step pre-carbonization |
| CN110492065A (en) * | 2019-07-26 | 2019-11-22 | 江苏理工学院 | It is a kind of based on the S/Co/CNF composite material and preparation method of discarded cigarette butt and application |
| CN110492065B (en) * | 2019-07-26 | 2022-02-08 | 江苏理工学院 | S/Co/CNF composite material based on waste cigarette ends and preparation method and application thereof |
| CN112038635A (en) * | 2020-08-04 | 2020-12-04 | 湘潭大学 | Lithium-sulfur battery graphene-loaded cementite particle composite positive electrode material and preparation method thereof |
| CN113666356A (en) * | 2021-07-30 | 2021-11-19 | 复旦大学 | Shell biomass-based hard carbon negative electrode material of sodium ion battery and preparation method |
| CN113666356B (en) * | 2021-07-30 | 2023-02-10 | 复旦大学 | Shell biomass-based hard carbon negative electrode material of sodium ion battery and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105417540B (en) | 2017-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105417540A (en) | Method for preparing biomass activated carbon and application of biomass activated carbon to lithium sulfur batteries | |
| CN106299365B (en) | A kind of sodium-ion battery biomass hard carbon cathode material, preparation method and sodium-ion battery | |
| CN104201389B (en) | A kind of preparation method of lithium selenium cell positive pole | |
| CA3080584C (en) | Method of preparing and application of carbon-selenium composites | |
| CN104201392B (en) | The preparation method of a kind of lithium sulphur battery electrode | |
| CN105845936B (en) | Preparation method of modified hard carbon negative electrode material for lithium ion battery | |
| CN109081340B (en) | Pine-based biomass activated carbon, preparation method thereof and application thereof in electrochemical energy storage | |
| CN104409733B (en) | Nitrogen doped porous carbon/sulfur composite positive material as well as preparation method and application thereof | |
| CN104157852A (en) | Sulfur positive electrode of lithium sulfur battery and preparation method | |
| CN105810914A (en) | Sulfur-doping porous carbon material of sodium ion battery and preparation method of sulfur-doping porous carbon material | |
| CN107658436A (en) | A kind of positive electrode for lithium-sulfur rechargeable battery and preparation method thereof | |
| CN105870412A (en) | Preparation method for poplar catkin based biomass carbon/sulfur composite material | |
| CN109686953A (en) | A kind of lithium-sulfur battery composite cathode material and preparation method thereof | |
| CN107799745B (en) | Molybdenum carbide-sulfur composite material and preparation method and application thereof | |
| CN102983312A (en) | Preparation method of composite fiber anode material of lithium-sulfur battery | |
| CN115092905B (en) | Amorphous carbon material modified by carbon dots, and preparation method and application thereof | |
| CN108321438A (en) | Full graphite lithium-sulfur cell and preparation method thereof | |
| CN114956037A (en) | Carbon material for sodium ion battery negative electrode, preparation method of carbon material, sodium ion battery negative electrode piece and sodium ion battery | |
| CN114751393A (en) | Nitrogen-sulfur co-doped porous carbon/sulfur composite material and preparation method and application thereof | |
| CN116803899A (en) | Biomass-derived hard carbon material, preparation method thereof, sodium ion battery negative electrode plate and sodium ion battery | |
| Xu et al. | Corncob-derived porous carbon as an interlayer coating to improve the performance of lithium sulphur battery | |
| CN109119613B (en) | Method for synthesizing lithium-sulfur battery positive electrode material by taking waste fly ash as raw material | |
| Tonoya et al. | Microporous activated carbon derived from azulmic acid precursor with high sulfur loading and its application to lithium-sulfur battery cathode | |
| CN110577204A (en) | preparation of N/O co-doped hard carbon material and application of N/O co-doped hard carbon material in potassium ion battery | |
| CN109494365A (en) | A kind of preparation method of the LDH- porous charcoal sulphur composite material for lithium-sulphur cell positive electrode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20201105 |