CN109546148A - A kind of method that chestnut peel prepares porous irregular spherical biological carbon lithium-sulfur cell negative electrode material - Google Patents

A kind of method that chestnut peel prepares porous irregular spherical biological carbon lithium-sulfur cell negative electrode material Download PDF

Info

Publication number
CN109546148A
CN109546148A CN201811457203.8A CN201811457203A CN109546148A CN 109546148 A CN109546148 A CN 109546148A CN 201811457203 A CN201811457203 A CN 201811457203A CN 109546148 A CN109546148 A CN 109546148A
Authority
CN
China
Prior art keywords
product
biological carbon
sulfur cell
obtains
negative electrode
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
Application number
CN201811457203.8A
Other languages
Chinese (zh)
Other versions
CN109546148B (en
Inventor
黄剑锋
王彩薇
李嘉胤
曹丽云
齐慧
党欢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi University of Science and Technology
Original Assignee
Shaanxi University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shaanxi University of Science and Technology filed Critical Shaanxi University of Science and Technology
Priority to CN201811457203.8A priority Critical patent/CN109546148B/en
Publication of CN109546148A publication Critical patent/CN109546148A/en
Application granted granted Critical
Publication of CN109546148B publication Critical patent/CN109546148B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/58Selection 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
    • H01M4/583Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M2004/021Physical characteristics, e.g. porosity, surface area
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

A kind of method that chestnut peel prepares porous irregular spherical biological carbon lithium-sulfur cell negative electrode material, chestnut peel is added to the water, neutral filtering is diluted to after concentrated acid reaction then is added thereto, is dried to obtain product C;The concentrated sulfuric acid and water are added in product C, is placed in reaction solution D in hydrothermal reaction kettle, solution D is diluted to neutral filtering, dry product E;By layer overlay electrically conductive graphite uniform on product, heating reaction obtains product F in tube furnace;Product F is rinsed, is filtered, drying obtains product G;Product G is mixed to obtain to mixture H with sulphur powder;Mixture H is placed in temperature reaction in tube furnace and obtains porous irregular spherical biological carbon lithium-sulfur cell negative electrode material.The present invention is using chestnut peel as biomass material, and using first mixed acid pre-soaking, rear hydro-thermal method prepares biological carbon matrix precursor, activation time is controlled in later period activation, regulation obtains being suitable for the biological carbon material for storing up sulphur, is applied to lithium-sulfur cell, promotes its chemical property.

Description

A kind of chestnut peel prepares porous irregular spherical biological carbon lithium-sulfur cell negative electrode material Method
Technical field
The present invention relates to a kind of preparation methods of lithium-sulfur cell negative electrode material, and in particular to a kind of chestnut peel prepare it is porous not The method of the spherical biological carbon lithium-sulfur cell negative electrode material of rule.
Background technique
The development of portable electronic device is more more and more urgent for the demand of advanced energy storage.Advanced energy resource system it is fast Fast demand for development material must have low cost, long-life, high safety, high-energy, high-power, advantages of environment protection.Lithium Sulphur battery can preferably combine These characteristics, in following high-energy (2500Whkg-1) have in storage system compared with Good application prospect.In the lithium-sulfur cell of high-energy density, the theoretical capacity of sulphur is 1672mAhg-1, lithium an- ode Theoretical capacity is 3860mAhg-1.In charge and discharge process, lithium ion is generated from metal lithium electrode, is diffused by electrolyte Sulfur electrode, electronics are flowed from external circuit, and final discharging product Li is generated at cathode2S.However, the technology of lithium-sulfur cell hinders Hinder and limit its application, for example cycle period is short, the content of sulfur loaded is low.Reason mainly has the following: (1) due in sun Polysulfide intermediate product is generated in pole and cathode, and complicated the Nomenclature Composition and Structure of Complexes variation is generated during forming polysulfide, Easily dissolution causes capacitance loss to polysulfide in the electrolytic solution, and the cyclical stability of electrode is poor;(2) sulphur and discharging product Li2S With ion and electronic isolation, the electric conductivity of material is reduced.(3) polysulfide moves in circles between the anode and the cathode, The loss of active material is caused, coulombic efficiency is lower, and surface of metal electrode is passivated, and generates insulation product Li2S/Li2S2。 (4) loss of metal lithium electrode is prevented mainly due to the passivation on surface and the formation (SEI film) of unstable solid-liquid interphase The long-range cyclical stability of lithium-sulfur cell.
In recent years, largely studies have shown that the above problem can be negative by introducing sulphur-carbon, sulphur-polymer composites The methods of pole, novel battery system, stable lithium an- ode are realized.Result of study specifically includes that (1) introduces new battery composition Material and structure (cathode, binder, electrolyte and anode).(2) mechanism study of Li-S redox chemistry reaction.(3) exist Conducting base (such as: carbon, polymer, metal) is introduced in sulfur electrode.This method can promote the electric conductivity of material to a certain degree, But its energy density can also reduce.Research for novel electrode structure, main includes using sulphur-carbon, sulphur-polymer nanocomposite Composite material, the storage of porous polysulfide, porous current collector, binder, self-supporting combination electrode, cathode and separator interlayer Away from, polysulfide cathode, surface covering separator, polysulfide cathode, sandwich cathode construction, lithium metal protection and Li2S is living Change.Based on the studies above, the development and application of the following lithium-sulfur cell still have extensive prospect.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation process is simple, raw material is easy to get, the biological carbon material of obtained load sulphur With environment friendly, and it is able to ascend the load capacity of sulphur, the chestnut peel for promoting lithium-sulfur cell capacity prepares porous irregular ball The method of shape biological carbon lithium-sulfur cell negative electrode material.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
1) it is dried after taking 2-8g chestnut peel to wash, obtains product A;
2) 100mL water is added in product A, the mixing concentrated acid of 10-60mL is then added thereto, being stirred with glass bar makes it Sufficiently reaction, obtains solution B;
3) solution B is diluted to pH=7, filters, is dried to obtain product C;
4) the 1-5mL concentrated sulfuric acid is added in product C, 45-49mL water is placed in hydrothermal reaction kettle at 160-180 DEG C, reaction 8-30h obtains solution D;
5) solution D is diluted to pH=7, filters, is dried to obtain product E;
6) product E is laid in white alumina porcelain boat, then uniform layer overlay electrically conductive graphite on it, is placed in argon gas 1000 DEG C are warming up to the heating rate of 5-10 DEG C/min from room temperature in the tube furnace of atmosphere, in 1000 DEG C of reaction 0-10h, is obtained Product F;
7) it by product F second alcohol and water repeated flushing, filters, drying obtains product G;
8) by product G with sulphur powder with (1-9): the mass ratio of (9-1) mixes, grinding obtain mixture H;
9) mixture H is laid in white alumina porcelain boat, is placed in the tube furnace of argon atmosphere from room temperature with 5-10 DEG C/heating rate of min is warming up to 155-165 DEG C, it is negative that reaction 12-24h obtains porous irregular spherical biological carbon lithium-sulfur cell Pole material.
The step 1), which is adopted, to be washed with distilled water.
The concentrated acid of the step 2) is to be separately added into the concentrated sulfuric acid, concentrated hydrochloric acid and concentrated nitric acid with the volume ratio of 3:4:3.
Step 2) the mixing time is 50-120min.
The step 6,9) argon gas flow velocity are 60-100sccm.
The present invention is using chestnut peel as biomass material, using first mixed acid pre-soaking, before rear hydro-thermal method preparation biological carbon Object is driven, activation time is controlled in later period activation, regulation obtains being suitable for the biological carbon material for storing up sulphur, is applied to lithium sulphur electricity Pond promotes its chemical property.
The beneficial effects of the present invention are embodied in:
1) present invention is using first mixed acid pre-soaking, and the mode of rear hydro-thermal process handles biological carbon matrix precursor, and then at heat Reason obtains biological carbon material.Biomass exocuticle organic aldehyde, oxidation of ketones are obtained carboxyl structure by acid soak, so hydro-thermal process Biomass endepidermis is further etched on this basis, and endepidermis lignin from biomass content is higher, thus needs high temperature height Pressure could homogeneous reaction.
2) synergistic effect of electrically conductive graphite is heat-treated and is added in tube furnace by hydrothermal product to be promoted in the present invention The electric conductivity of material.Under the protection of inert gas, carboxylic acid molecules, which are decomposed, generates carbon dioxide generation hole, remaining carbon atom Arrangement recombination forms carbon hexatomic ring, and structure is more orderly, and degree of graphitization is higher.At the same time, hydrothermal product surface is oxygen-containing Functional group can promote the degree of graphitization and electric conductivity of material entirety with electrically conductive graphite stable bond.
3) chestnut peel is a kind of biomass castoff, may be used as biological carbon negative pole material sulfur loaded applied to lithium sulphur electricity Pond.Glucide rich in chestnut peel, hydrolytic process can form porous irregular spherical particle, be able to ascend sulphur Load capacity promotes lithium-sulfur cell capacity.
4) preparation process of the invention is relatively simple, and raw material is easy to get, and the biological carbon material of obtained load sulphur has environment friend Good property.
5) skeleton of biological carbon of the invention as sulfur loaded, it is suppressed that polysulfide is in the electrolytic solution in charge and discharge process Dissolution, while carburizing temperature and carrying the control of sulfur content and can change the electric conductivity of carbon material.
Detailed description of the invention
Fig. 1 is the SEM figure that the embodiment of the present invention 6 prepares porous irregular spherical biological carbon lithium-sulfur cell negative electrode material.
Specific embodiment
Embodiment 1:
1) take 2g chestnut peel adopt be washed with distilled water after dry, obtain product A;
2) 100mL water is added in product A, the concentrated sulfuric acid, concentrated hydrochloric acid are then added thereto respectively with the volume ratio of 3:4:3 With the total 10mL of concentrated nitric acid, stirring 50min with glass bar reacts it sufficiently, obtains solution B;
3) solution B is diluted to pH=7, filters, is dried to obtain product C;
4) the 1mL concentrated sulfuric acid is added in product C, 49mL water is placed in hydrothermal reaction kettle at 160 DEG C, reacts 30h, obtain Solution D;
5) solution D is diluted to pH=7, filters, is dried to obtain product E;
6) product E is laid in white alumina porcelain boat, then uniform layer overlay electrically conductive graphite on it, is placed in argon gas 1000 DEG C are warming up to the heating rate of 5 DEG C/min from room temperature in the tube furnace of atmosphere, in 1000 DEG C of reaction 10h, obtains product F, wherein argon gas flow velocity is 60sccm;
7) it by product F second alcohol and water repeated flushing, filters, drying obtains product G;
8) product G is mixed with sulphur powder with the mass ratio of 1:9, grinding obtains mixture H;
9) mixture H is laid in white alumina porcelain boat, be placed in the tube furnace of argon atmosphere from room temperature with 5 DEG C/ The heating rate of min is warming up to 155 DEG C, and reaction 12h obtains porous irregular spherical biological carbon lithium-sulfur cell negative electrode material, wherein Argon gas flow velocity is 60sccm.
Embodiment 2:
1) take 8g chestnut peel adopt be washed with distilled water after dry, obtain product A;
2) 100mL water is added in product A, the concentrated sulfuric acid, concentrated hydrochloric acid are then added thereto respectively with the volume ratio of 3:4:3 With the total 60mL of concentrated nitric acid, stirring 120min with glass bar reacts it sufficiently, obtains solution B;
3) solution B is diluted to pH=7, filters, is dried to obtain product C;
4) the 5mL concentrated sulfuric acid is added in product C, 45mL water is placed in hydrothermal reaction kettle at 180 DEG C, and reaction for 24 hours, obtains Solution D;
5) solution D is diluted to pH=7, filters, is dried to obtain product E;
6) product E is laid in white alumina porcelain boat, then uniform layer overlay electrically conductive graphite on it, is placed in argon gas 1000 DEG C are warming up to the heating rate of 10 DEG C/min from room temperature in the tube furnace of atmosphere and obtains product F, and wherein argon gas flow velocity is 60sccm;
7) it by product F second alcohol and water repeated flushing, filters, drying obtains product G;
8) product G is mixed with sulphur powder with the mass ratio of 8:2, grinding obtains mixture H;
9) mixture H is laid in white alumina porcelain boat, be placed in the tube furnace of argon atmosphere from room temperature with 7 DEG C/ The heating rate of min is warming up to 155 DEG C, and reaction 12h obtains porous irregular spherical biological carbon lithium-sulfur cell negative electrode material, wherein Argon gas flow velocity is 100sccm.
Embodiment 3:
1) take 8g chestnut peel adopt be washed with distilled water after dry, obtain product A;
2) 100mL water is added in product A, the concentrated sulfuric acid, concentrated hydrochloric acid are then added thereto respectively with the volume ratio of 3:4:3 With the total 60mL of concentrated nitric acid, stirring 70min with glass bar reacts it sufficiently, obtains solution B;
3) solution B is diluted to pH=7, filters, is dried to obtain product C;
4) the 5mL concentrated sulfuric acid is added in product C, 45mL water is placed in hydrothermal reaction kettle at 180 DEG C, and reaction for 24 hours, obtains Solution D;
5) solution D is diluted to pH=7, filters, is dried to obtain product E;
6) product E is laid in white alumina porcelain boat, then uniform layer overlay electrically conductive graphite on it, is placed in argon gas 1000 DEG C are warming up to the heating rate of 8 DEG C/min from room temperature in the tube furnace of atmosphere, in 1000 DEG C of reaction 2h, obtains product F, Wherein argon gas flow velocity is 60sccm;
7) it by product F second alcohol and water repeated flushing, filters, drying obtains product G;
8) product G is mixed with sulphur powder with the mass ratio of 8:2, grinding obtains mixture H;
9) mixture H is laid in white alumina porcelain boat, be placed in the tube furnace of argon atmosphere from room temperature with 5 DEG C/ The heating rate of min is warming up to 155 DEG C, and reaction 12h obtains porous irregular spherical biological carbon lithium-sulfur cell negative electrode material, wherein Argon gas flow velocity is 100sccm.
Embodiment 4:
1) take 8g chestnut peel adopt be washed with distilled water after dry, obtain product A;
2) 100mL water is added in product A, the concentrated sulfuric acid, concentrated hydrochloric acid are then added thereto respectively with the volume ratio of 3:4:3 With the total 60mL of concentrated nitric acid, stirring 100min with glass bar reacts it sufficiently, obtains solution B;
3) solution B is diluted to pH=7, filters, is dried to obtain product C;
4) the 5mL concentrated sulfuric acid is added in product C, 45mL water is placed in hydrothermal reaction kettle at 180 DEG C, and reaction for 24 hours, obtains Solution D;
5) solution D is diluted to pH=7, filters, is dried to obtain product E;
6) product E is laid in white alumina porcelain boat, then uniform layer overlay electrically conductive graphite on it, is placed in argon gas 1000 DEG C are warming up to the heating rate of 6 DEG C/min from room temperature in the tube furnace of atmosphere, in 1000 DEG C of reaction 5h, obtains product F, Wherein argon gas flow velocity is 60sccm;
7) it by product F second alcohol and water repeated flushing, filters, drying obtains product G;
8) product G is mixed with sulphur powder with the mass ratio of 8:2, grinding obtains mixture H;
9) mixture H is laid in white alumina porcelain boat, be placed in the tube furnace of argon atmosphere from room temperature with 8 DEG C/ The heating rate of min is warming up to 155 DEG C, and reaction 12h obtains porous irregular spherical biological carbon lithium-sulfur cell negative electrode material, wherein Argon gas flow velocity is 100sccm.
Embodiment 5:
1) take 6g chestnut peel adopt be washed with distilled water after dry, obtain product A;
2) 100mL water is added in product A, the concentrated sulfuric acid, concentrated hydrochloric acid are then added thereto respectively with the volume ratio of 3:4:3 With the total 45mL of concentrated nitric acid, stirring 115min with glass bar reacts it sufficiently, obtains solution B;
3) solution B is diluted to pH=7, filters, is dried to obtain product C;
4) the 3mL concentrated sulfuric acid is added in product C, 47mL water is placed in hydrothermal reaction kettle at 160 DEG C, reacts 8h, obtain molten Liquid D;
5) solution D is diluted to pH=7, filters, is dried to obtain product E;
6) product E is laid in white alumina porcelain boat, then uniform layer overlay electrically conductive graphite on it, is placed in argon gas 1000 DEG C are warming up to the heating rate of 10 DEG C/min from room temperature in the tube furnace of atmosphere, in 1000 DEG C of reaction 8h, obtains product F, wherein argon gas flow velocity is 80sccm;
7) it by product F second alcohol and water repeated flushing, filters, drying obtains product G;
8) product G is mixed with sulphur powder with the mass ratio of 6:4, grinding obtains mixture H;
9) mixture H is laid in white alumina porcelain boat, be placed in the tube furnace of argon atmosphere from room temperature with 5 DEG C/ The heating rate of min is warming up to 160 DEG C, and reaction obtains porous irregular spherical biological carbon lithium-sulfur cell negative electrode material for 24 hours, wherein Argon gas flow velocity is 100sccm.
Embodiment 6:
1) take 4g chestnut peel adopt be washed with distilled water after dry, obtain product A;
2) 100mL water is added in product A, the concentrated sulfuric acid, concentrated hydrochloric acid are then added thereto respectively with the volume ratio of 3:4:3 With the total 20mL of concentrated nitric acid, stirring 72min with glass bar reacts it sufficiently, obtains solution B;
3) solution B is diluted to pH=7, filters, is dried to obtain product C;
4) the 5mL concentrated sulfuric acid is added in product C, 45mL water is placed in hydrothermal reaction kettle at 170 DEG C, reacts 10h, obtain Solution D;
5) solution D is diluted to pH=7, filters, is dried to obtain product E;
6) product E is laid in white alumina porcelain boat, then uniform layer overlay electrically conductive graphite on it, is placed in argon gas 1000 DEG C are warming up to the heating rate of 10 DEG C/min from room temperature in the tube furnace of atmosphere, in 1000 DEG C of reaction 8h, obtains product F, wherein argon gas flow velocity is 100sccm;
7) it by product F second alcohol and water repeated flushing, filters, drying obtains product G;
8) product G is mixed with sulphur powder with the mass ratio of 9:1, grinding obtains mixture H;
9) mixture H is laid in white alumina porcelain boat, be placed in the tube furnace of argon atmosphere from room temperature with 10 DEG C/ The heating rate of min is warming up to 165 DEG C, and reaction 20h obtains porous irregular spherical biological carbon lithium-sulfur cell negative electrode material, wherein Argon gas flow velocity is 80sccm.
As seen from Figure 1, the chestnut peel obtained has porous irregular chondritic.The diameter of irregular spherical particle For 40-50nm, the biggish specific surface area of nano-scale provides more spaces with the contact of electrolyte for the storage of sulphur.
Being incorporated as of nitric acid of the present invention introduces nitrogen-containing functional group in biological carbon, since nitrogen has electronegativity, compared to pure carbon Material is stronger to the adsorptivity of sulphur;Concentrated sulfuric acid strong oxidizing property is stronger, can be carbonized in advance to chestnut peel, while introducing on surface More oxygen atom, oxygen atom electronegativity is weaker with respect to nitrogen, but still can adsorb sulphur simple substance;Hydrochloric acid is easy to produce volatility gas Body easily on chestnut peel surface and internal pore-creating, and introduces chlorine atom on surface.By controlling the concentration and additional proportion of acid, A certain amount of nitrogen-atoms, oxygen atom and chlorine atom can be introduced, due to three under conditions of chestnut peel surface and internal pore-creating The adsorption capacity of atom pair sulphur is different, and the ability for storing up sulphur is also different.

Claims (5)

1. a kind of method that chestnut peel prepares porous irregular spherical biological carbon lithium-sulfur cell negative electrode material, it is characterised in that:
1) it is dried after taking 2-8g chestnut peel to wash, obtains product A;
2) 100mL water is added in product A, the concentrated acid of 10-60mL is then added thereto, being stirred with glass bar keeps it sufficiently anti- It answers, obtains solution B;
3) solution B is diluted to pH=7, filters, is dried to obtain product C;
4) the 1-5mL concentrated sulfuric acid is added in product C, 45-49mL water is placed in hydrothermal reaction kettle at 160-180 DEG C, reacts 8- 30h obtains solution D;
5) solution D is diluted to pH=7, filters, is dried to obtain product E;
6) product E is laid in white alumina porcelain boat, then uniform layer overlay electrically conductive graphite on it, is placed in argon atmosphere Tube furnace in from room temperature be warming up to 1000 DEG C with the heating rate of 5-10 DEG C/min, in 1000 DEG C of reaction 0-10h, obtain product F;
7) it by product F second alcohol and water repeated flushing, filters, drying obtains product G;
8) by product G with sulphur powder with (1-9): the mass ratio of (9-1) mixes, grinding obtain mixture H;
9) mixture H is laid in white alumina porcelain boat, be placed in the tube furnace of argon atmosphere from room temperature with 5-10 DEG C/ The heating rate of min is warming up to 155-165 DEG C, and reaction 12-24h obtains porous irregular spherical biological carbon lithium-sulfur cell cathode material Material.
2. the side that chestnut peel according to claim 1 prepares porous irregular spherical biological carbon lithium-sulfur cell negative electrode material Method, it is characterised in that: the step 1), which is adopted, to be washed with distilled water.
3. the side that chestnut peel according to claim 1 prepares porous irregular spherical biological carbon lithium-sulfur cell negative electrode material Method, it is characterised in that: the concentrated acid of the step 2) is to be separately added into the concentrated sulfuric acid, concentrated hydrochloric acid and concentrated nitric acid with the volume ratio of 3:4:3.
4. the side that chestnut peel according to claim 1 prepares porous irregular spherical biological carbon lithium-sulfur cell negative electrode material Method, it is characterised in that: the step 2) mixing time is 50-120min.
5. the side that chestnut peel according to claim 1 prepares porous irregular spherical biological carbon lithium-sulfur cell negative electrode material Method, it is characterised in that: the step 6,9) argon gas flow velocity are 60-100sccm.
CN201811457203.8A 2018-11-30 2018-11-30 Method for preparing porous irregular spherical biological carbon lithium sulfur battery positive electrode material from chestnut peels Active CN109546148B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811457203.8A CN109546148B (en) 2018-11-30 2018-11-30 Method for preparing porous irregular spherical biological carbon lithium sulfur battery positive electrode material from chestnut peels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811457203.8A CN109546148B (en) 2018-11-30 2018-11-30 Method for preparing porous irregular spherical biological carbon lithium sulfur battery positive electrode material from chestnut peels

Publications (2)

Publication Number Publication Date
CN109546148A true CN109546148A (en) 2019-03-29
CN109546148B CN109546148B (en) 2021-07-06

Family

ID=65851780

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811457203.8A Active CN109546148B (en) 2018-11-30 2018-11-30 Method for preparing porous irregular spherical biological carbon lithium sulfur battery positive electrode material from chestnut peels

Country Status (1)

Country Link
CN (1) CN109546148B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112662204A (en) * 2020-12-23 2021-04-16 哈尔滨工业大学 Preparation method of porous/hollow-like carbon black material for lithium-sulfur battery

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103044087A (en) * 2012-12-17 2013-04-17 华南农业大学 Active phosphate fertilizer as well as preparation method and application thereof
CN103515614A (en) * 2013-10-02 2014-01-15 中国地质大学(武汉) Additive for battery, cathode material containing same and preparation method for cathode material
US20150337403A1 (en) * 2012-12-18 2015-11-26 Showa Denko K.K. Plant-biomass hydrolysis method
CN106099110A (en) * 2016-07-11 2016-11-09 杭州电子科技大学 A kind of method utilizing algae to prepare Li S cell positive material as carbon source
CN106099089A (en) * 2016-07-07 2016-11-09 陕西科技大学 A kind of preparation method of anode material of lithium-ion battery biological carbon
CN106532048A (en) * 2016-12-27 2017-03-22 陕西科技大学 Preparation method of three-dimensional spiral sodium-ion battery carbon electrode material
CN106602013A (en) * 2016-12-19 2017-04-26 中国科学院山西煤炭化学研究所 Preparation method of sulfur-active carbon/graphene composite material
CN106848279A (en) * 2017-01-13 2017-06-13 陕西科技大学 A kind of liquid phase adsorbs SnO certainly2The preparation method and application of/biological carbon composite
CN107697900A (en) * 2017-09-13 2018-02-16 陕西科技大学 The preparation method of the cellular sodium-ion battery carbon electrode material of one species

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103044087A (en) * 2012-12-17 2013-04-17 华南农业大学 Active phosphate fertilizer as well as preparation method and application thereof
US20150337403A1 (en) * 2012-12-18 2015-11-26 Showa Denko K.K. Plant-biomass hydrolysis method
CN103515614A (en) * 2013-10-02 2014-01-15 中国地质大学(武汉) Additive for battery, cathode material containing same and preparation method for cathode material
CN106099089A (en) * 2016-07-07 2016-11-09 陕西科技大学 A kind of preparation method of anode material of lithium-ion battery biological carbon
CN106099110A (en) * 2016-07-11 2016-11-09 杭州电子科技大学 A kind of method utilizing algae to prepare Li S cell positive material as carbon source
CN106602013A (en) * 2016-12-19 2017-04-26 中国科学院山西煤炭化学研究所 Preparation method of sulfur-active carbon/graphene composite material
CN106532048A (en) * 2016-12-27 2017-03-22 陕西科技大学 Preparation method of three-dimensional spiral sodium-ion battery carbon electrode material
CN106848279A (en) * 2017-01-13 2017-06-13 陕西科技大学 A kind of liquid phase adsorbs SnO certainly2The preparation method and application of/biological carbon composite
CN107697900A (en) * 2017-09-13 2018-02-16 陕西科技大学 The preparation method of the cellular sodium-ion battery carbon electrode material of one species

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112662204A (en) * 2020-12-23 2021-04-16 哈尔滨工业大学 Preparation method of porous/hollow-like carbon black material for lithium-sulfur battery

Also Published As

Publication number Publication date
CN109546148B (en) 2021-07-06

Similar Documents

Publication Publication Date Title
CN108232343A (en) Benefit lithium additive, benefit lithium anode and its preparation and application for lithium ion battery
CN101867038B (en) Method for preparing anode composite material for lithium sulfur secondary batteries
CN105762337B (en) A kind of silicon/graphene/carbon fiber composite negative material and preparation method thereof
CN109574005A (en) A kind of preparation method of lithium-sulfur cell cathode biology carbon material
CN106450265B (en) A kind of situ Nitrogen Doping carbon coating lithium titanate combination electrode material and preparation method thereof
CN103730638B (en) A kind of preparation method of nitrogen-doped carbon material
CN102299326A (en) Graphene modified lithium iron phosphate/carbon composite material and its application
CN103259000A (en) Polypyrrole hollow microsphere/ sulfur composite material as well as preparation method and application thereof
CN104157849A (en) Method for preparing elemental sulfur and mesoporous carbon composite material
CN104009236A (en) Lithium titanate mesoporous single-crystal nanoparticle/reduced graphene oxide composite material as well as preparation method and application thereof
CN106299282A (en) A kind of nitrogen-doped carbon nanometer pipe sulfur composite and preparation method
CN108832122A (en) Improve the method for electrochemical performances of lithium iron phosphate using copper/graphene
CN108539203A (en) Super hydrophilic material(Graphene oxide/phytic acid)Electrode material for modifying energy storage flow battery
CN109592661B (en) Method for preparing biochar from corn stigma
CN104843800B (en) A kind of solvothermal preparation method of carbon coated ferriferrous oxide negative material
CN104157861A (en) Mesoporous carbon material, elemental sulfur and preparation method for mesoporous carbon composite material
CN109592662A (en) A kind of preparation method of the biological carbon negative pole material of lithium-sulfur cell
CN109560279A (en) A kind of method that kapok prepares multiporous biological carbon lithium-sulfur cell negative electrode material
CN102064024A (en) Preparation method of activated carbon/metal nitride composite electrode material for supercapacitor
CN109244467A (en) A kind of method that herba setariae viridis grass prepares biological carbon negative pole material
CN103579626A (en) Graphene/tin composite material, preparation method of grapheme/tin composite material, lithium ion battery and preparation method of lithium ion battery
CN104638248A (en) Method for preparing graphene/lead compound composite material
CN103050692A (en) Preparation method of grapheme-lithium manganese silicate anode material
CN105428613A (en) Preparation method for graphene/lead compound composite material and lead-acid battery
CN109360975A (en) A kind of compound bio carbon structure load sulphur preparing process

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
GR01 Patent grant
GR01 Patent grant