CN104701507B - A kind of preparation method of lithium-sulfur rechargeable battery anode composite - Google Patents
A kind of preparation method of lithium-sulfur rechargeable battery anode composite Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 28
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 30
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 238000000227 grinding Methods 0.000 claims abstract description 9
- 239000007800 oxidant agent Substances 0.000 claims abstract description 7
- 230000001590 oxidative effect Effects 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 22
- -1 amine salt Chemical class 0.000 claims description 21
- 238000010041 electrostatic spinning Methods 0.000 claims description 18
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 18
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 18
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 17
- 239000002134 carbon nanofiber Substances 0.000 claims description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 238000013019 agitation Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 6
- 150000001412 amines Chemical class 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 238000006555 catalytic reaction Methods 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002121 nanofiber Substances 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims 1
- GJEAMHAFPYZYDE-UHFFFAOYSA-N [C].[S] Chemical compound [C].[S] GJEAMHAFPYZYDE-UHFFFAOYSA-N 0.000 abstract description 15
- 229910052717 sulfur Inorganic materials 0.000 abstract description 11
- 239000011593 sulfur Substances 0.000 abstract description 11
- 238000004073 vulcanization Methods 0.000 abstract description 10
- 229910052799 carbon Inorganic materials 0.000 abstract description 9
- 239000005864 Sulphur Substances 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 description 15
- 229920001155 polypropylene Polymers 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- YQCIWBXEVYWRCW-UHFFFAOYSA-N methane;sulfane Chemical compound C.S YQCIWBXEVYWRCW-UHFFFAOYSA-N 0.000 description 1
- 229910021392 nanocarbon Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002133 porous carbon nanofiber Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
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- 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
- H01M4/362—Composites
-
- 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
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
-
- 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
-
- 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
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Inorganic Fibers (AREA)
Abstract
This application discloses a kind of preparation method of lithium-sulfur rechargeable battery anode composite, by carbon source, sulphur source and vulcanization accelerator according to mass ratio 4:(4~6):(0.4~0.6) mixed grinding is carried out, then 7~24 hours are incubated at 155 DEG C~300 DEG C.The present invention synthesizes vulcanization accelerator using hydrogen peroxide as oxidant, not only environmentally friendly, and condition is easier control；Peroxidating phenomenon can be prevented in the range of 9.8~10.3 by the PH that controls reaction solution in building-up process；In addition, synthesizing the sulphur carbon composite for lithium-sulfur rechargeable battery anode using the vulcanization accelerator obtained under the conditions of this kind, sulfur content can be significantly improved, sulfur content maximum can reach 47wt.%.
Description
Technical field
The application is related to a kind of lithium-sulfur rechargeable battery, more particularly to a kind of system of lithium-sulfur rechargeable battery anode composite
Preparation Method.
Background technology
The theoretical capacity of rechargeable lithium-sulfur cell is up to 1675mAhg-1, almost it is higher by current business just extremely
LiFePO4Lithium rechargeable battery an order of magnitude, while as positive electrode active materials sulphur not only cost it is low, nontoxic but also
Rich content.
Using sulphur carbon complex as the lithium-sulfur cell of positive pole, the cycle performance with stabilization, extremely low self-discharge of battery, compared with
The advantages of high security, but the sulfur content of such carbon-sulfur compound at present is generally relatively low, causes the lithium-sulfur cell being made from it
Capacity it is relatively low.
The content of the invention
It is existing to overcome it is an object of the invention to provide a kind of preparation method of lithium-sulfur rechargeable battery anode composite
Deficiency in technology.
To achieve the above object, the present invention provides following technical scheme：
The embodiment of the present application discloses a kind of preparation method of lithium-sulfur rechargeable battery anode composite, by carbon source, sulphur source,
With vulcanization accelerator according to mass ratio 4:(4~6):(0.4~0.6) mixed grinding is carried out, is then protected at 155 DEG C~300 DEG C
Temperature 7~24 hours.
It is preferred that, in the preparation method of above-mentioned lithium-sulfur rechargeable battery anode composite, the carbon source is porous
Carbon nano-fiber.
It is preferred that, in the preparation method of above-mentioned lithium-sulfur rechargeable battery anode composite, the preparation side of the carbon source
Method includes：
(1), it is dissolved in polypropylene is fine in DMF, the fine solution of polypropylene that mass fraction is 6~9wt.% is made；
(2), PMMA is dissolved in FMF, the PMMA solution that mass fraction is 8~15wt.% is made；
(3), using the fine solution of polypropylene as the outer liquid of electrostatic spinning, PMMA solution is carried out as the interior liquid of electrostatic spinning
Coaxial electrostatic spinning, then carries out carbonization and prepares carbon nano-fiber.
It is preferred that, in the preparation method of above-mentioned lithium-sulfur rechargeable battery anode composite, the vulcanization accelerator is
Accelerator CZ.
It is preferred that, in the preparation method of above-mentioned lithium-sulfur rechargeable battery anode composite, the vulcanization accelerator
Preparation method includes：Captax, ring amine, catalyst and water are put into stills for air blowing, M ring amine salt is generated under certain condition,
Then hydrogen peroxide, 3~5h of catalysis oxidation generation accelerator CZs are added in the cooling condition.
It is preferred that, in the preparation method of above-mentioned lithium-sulfur rechargeable battery anode composite, adding hydrogen peroxide process
In, the PH of reaction solution is controlled between 9.8~10.3.
It is preferred that, in the preparation method of above-mentioned lithium-sulfur rechargeable battery anode composite, dissociate in the hydrogen peroxide
The content of alkali is between 1.5~2.5g/100mL.
It is preferred that, in the preparation method of above-mentioned lithium-sulfur rechargeable battery anode composite, the sulphur source is elemental sulfur.
The embodiment of the present application also discloses a kind of preparation method of lithium-sulfur rechargeable battery anode composite, including step：
S1, the carbon nano-fiber for preparing using coaxial spin processes Porous hollow
It is dissolved in polypropylene is fine first in DMF, in 90 degrees Celsius of lower magnetic agitation 20h, it is 8wt.% that mass fraction, which is made,
The fine solution of polypropylene；
PMMA is dissolved in DMF again, normal temperature magnetic agitation 20h, the PMMA solution that mass fraction is 14wt.% is made；
Using the fine solution of polypropylene as the outer liquid of electrostatic spinning, the interior liquid of PMMA solution as electrostatic spinning is carried out coaxial
Electrostatic spinning, wherein, adjustment voltage is 18kV, and the flow of interior liquid is 0.8mL/h, and the flow of outer liquid is 0.3mL/h；
By obtained nanofiber with 5 DEG C/min heating rate, and 1.5h is incubated at 250 DEG C, then with 5 DEG C/min
Heating rate be warming up to 1300 DEG C and be incubated 1h；
S2, using hydrogen peroxide as oxidant prepare accelerator CZ
Captax, ring amine, catalyst and water are put into stills for air blowing, kettle internal pressure, which is tried hard to keep, holds 0.4MPa, generate M ring amines
Salt, then adds hydrogen peroxide of the free alkali content between 2g/100mL under the conditions of 40 DEG C, while controlling the PH of reaction solution
Between 9.8~10.3, catalysis oxidation 5h obtains accelerator CZ；
S3, by carbon nano-fiber, elemental sulfur and accelerator CZ according to mass ratio 4:6:0.5 carries out mixed grinding, so
Afterwards 24 hours are incubated at 200 DEG C.
Compared with prior art, the advantage of the invention is that：Using hydrogen peroxide as oxidant, synthesis vulcanization promotes the present invention
Agent, it is not only environmentally friendly, and also condition is easier control；By controlling the PH of reaction solution in the range of 9.8~10.3 in building-up process,
Peroxidating phenomenon can be prevented；In addition, being synthesized using the vulcanization accelerator obtained under the conditions of this kind for lithium-sulfur rechargeable battery just
The sulphur carbon composite of pole, can significantly improve sulfur content, and sulfur content maximum can reach 47wt.%.
Embodiment
The present invention is described further by the following example：According to following embodiments, the present invention may be better understood.
However, as it will be easily appreciated by one skilled in the art that specific material ratio, process conditions and its result described by embodiment are only used
In the explanation present invention, without should be also without limitation on the present invention described in detail in claims.
Comparative example 1
By Nano carbon fibers peacekeeping elemental sulfur according to mass ratio 4:6 carry out mixed grinding, and then insulation 24 is small at 200 DEG C
When, obtain sulphur carbon composite.
The sulphur carbon composite of acquisition is detected, it is found that wherein sulfur content is about 26wt.%.
Comparative example 2
(1) carbon nano-fiber of Porous hollow, is prepared using coaxial spin processes
It is dissolved in polypropylene is fine first in DMF, in 90 degrees Celsius of lower magnetic agitation 20h, it is 8wt.% that mass fraction, which is made,
The fine solution of polypropylene；
PMMA is dissolved in DMF again, normal temperature magnetic agitation 20h, the PMMA solution that mass fraction is 14wt.% is made；
Using the fine solution of polypropylene as the outer liquid of electrostatic spinning, the interior liquid of PMMA solution as electrostatic spinning is carried out coaxial
Electrostatic spinning, wherein, adjustment voltage is 18kV, and the flow of interior liquid is 0.8mL/h, and the flow of outer liquid is 0.3mL/h；
By obtained nanofiber with 5 DEG C/min heating rate, and 1.5h is incubated at 250 DEG C, then with 5 DEG C/min
Heating rate be warming up to 1300 DEG C and be incubated 1h；
(2), accelerator CZ is prepared using hydrogen peroxide as oxidant
Captax, ring amine, catalyst and water are put into stills for air blowing, kettle internal pressure, which is tried hard to keep, holds 0.4MPa, generate M ring amines
Salt, then adds hydrogen peroxide of the free alkali content between 2g/100mL under the conditions of 40 DEG C, while controlling the PH of reaction solution
Between 9.8~10.3, catalysis oxidation 5h obtains accelerator CZ；
(3), by carbon nano-fiber, elemental sulfur and accelerator CZ according to mass ratio 4:6:0.5 carries out mixed grinding, so
24 hours are incubated at 200 DEG C afterwards, sulphur carbon composite is obtained.
The sulphur carbon composite of acquisition is detected, it is found that wherein sulfur content can reach 41.2wt.%.
Comparative example 3
(1) carbon nano-fiber of Porous hollow, is prepared using coaxial spin processes
It is dissolved in polypropylene is fine first in DMF, in 90 degrees Celsius of lower magnetic agitation 20h, it is 8wt.% that mass fraction, which is made,
The fine solution of polypropylene；
PMMA is dissolved in DMF again, normal temperature magnetic agitation 20h, the PMMA solution that mass fraction is 14wt.% is made；
Using the fine solution of polypropylene as the outer liquid of electrostatic spinning, the interior liquid of PMMA solution as electrostatic spinning is carried out coaxial
Electrostatic spinning, wherein, adjustment voltage is 18kV, and the flow of interior liquid is 0.8mL/h, and the flow of outer liquid is 0.3mL/h；
By obtained nanofiber with 5 DEG C/min heating rate, and 1.5h is incubated at 250 DEG C, then with 5 DEG C/min
Heating rate be warming up to 1300 DEG C and be incubated 1h；
(2), carbon nano-fiber, elemental sulfur and accelerator M (Gaoyi County Jin Mao is produced up to Chemical Co., Ltd.) are pressed
According to mass ratio 4:6:0.5 carries out mixed grinding, is then incubated 24 hours at 200 DEG C, obtains sulphur carbon composite.
The sulphur carbon composite of acquisition is detected, it is found that wherein sulfur content can reach 34wt.%.
Comparative example 4
(1), accelerator CZ is prepared using hydrogen peroxide as oxidant
Captax, ring amine, catalyst and water are put into stills for air blowing, kettle internal pressure, which is tried hard to keep, holds 0.4MPa, generate M ring amines
Salt, then adds hydrogen peroxide of the free alkali content between 2g/100mL under the conditions of 40 DEG C, while controlling the PH of reaction solution
Between 9.8~10.3, catalysis oxidation 5h obtains accelerator CZ；
(2), by polyacrylonitrile, elemental sulfur and accelerator CZ according to mass ratio 4:6:0.5 carries out mixed grinding, then
24 hours are incubated at 200 DEG C, sulphur carbon composite is obtained.
The sulphur carbon composite of acquisition is detected, it is found that wherein sulfur content can reach 42.4wt.%.
Embodiment 1
(1) carbon nano-fiber of Porous hollow, is prepared using coaxial spin processes
It is dissolved in polypropylene is fine first in DMF, in 90 degrees Celsius of lower magnetic agitation 20h, it is 8wt.% that mass fraction, which is made,
The fine solution of polypropylene；
PMMA is dissolved in DMF again, normal temperature magnetic agitation 20h, the PMMA solution that mass fraction is 14wt.% is made；
Using the fine solution of polypropylene as the outer liquid of electrostatic spinning, the interior liquid of PMMA solution as electrostatic spinning is carried out coaxial
Electrostatic spinning, wherein, adjustment voltage is 18kV, and the flow of interior liquid is 0.8mL/h, and the flow of outer liquid is 0.3mL/h；
By obtained nanofiber with 5 DEG C/min heating rate, and 1.5h is incubated at 250 DEG C, then with 5 DEG C/min
Heating rate be warming up to 1300 DEG C and be incubated 1h；
(2), accelerator CZ is prepared using hydrogen peroxide as oxidant
Captax, ring amine, catalyst and water are put into stills for air blowing, kettle internal pressure, which is tried hard to keep, holds 0.4MPa, generate M ring amines
Salt, then adds hydrogen peroxide of the free alkali content between 2g/100mL under the conditions of 40 DEG C, while controlling the PH of reaction solution
Between 9.8~10.3, catalysis oxidation 5h obtains accelerator CZ；
(3), by carbon nano-fiber, elemental sulfur and accelerator CZ according to mass ratio 4:6:0.5 carries out mixed grinding, so
24 hours are incubated at 200 DEG C afterwards, sulphur carbon composite is obtained.
The sulphur carbon composite of acquisition is detected, it is found that wherein sulfur content can reach 47wt.%.
Understood in above-described embodiment：
1), it with the addition of after vulcanization accelerator, the content of sulphur is greatly improved in sulphur carbon composite；
2), the selection of reaction solution PH scope, carbon source and the selection of vulcanization accelerator can produce different to sulfur content
The influence of degree, the hollow carbon nano-fiber prepared using above-described embodiment, accelerator CZ are prepared sulphur carbon as raw material and answered
Condensation material, can produce the non-effect that will be readily apparent, and the content of sulphur can reach surprising 47wt.%.
Finally, in addition it is also necessary to explanation, term " comprising ", "comprising" or its any other variant are intended to non-exclusive
Property include so that process, method, article or equipment including a series of key elements not only include those key elements, and
Also include other key elements for being not expressly set out, or also include for this process, method, article or equipment inherently
Key element.
Claims (1)
1. a kind of preparation method of lithium-sulfur rechargeable battery anode composite, it is characterised in that including step：
S1, the carbon nano-fiber for preparing using coaxial spin processes Porous hollow
Polyacrylonitrile is dissolved in DMF first, in 90 degrees Celsius of lower magnetic agitation 20h, it is the poly- of 8wt.% that mass fraction, which is made,
Acrylonitrile solution；
PMMA is dissolved in DMF again, normal temperature magnetic agitation 20h, the PMMA solution that mass fraction is 14wt.% is made；
Using polyacrylonitrile solution as the outer liquid of electrostatic spinning, the interior liquid of PMMA solution as electrostatic spinning is subjected to coaxial electrostatic
Spinning, wherein, adjustment voltage is 18kV, and the flow of interior liquid is 0.8mL/h, and the flow of outer liquid is 0.3mL/h；
By obtained nanofiber with 5 DEG C/min heating rate, and 1.5h is incubated at 250 DEG C, then with 5 DEG C/min liter
Warm speed is warming up to 1300 DEG C and is incubated 1h；
S2, using hydrogen peroxide as oxidant prepare accelerator CZ
Captax, ring amine, catalyst and water are put into stills for air blowing, kettle internal pressure, which is tried hard to keep, holds 0.4MPa, generate M ring amine salt, so
Hydrogen peroxide of the free alkali content between 2g/100mL is added under the conditions of 40 DEG C afterwards, while controlling the pH of reaction solution 9.8
Between~10.3, catalysis oxidation 5h obtains accelerator CZ；
S3, by carbon nano-fiber, elemental sulfur and accelerator CZ according to mass ratio 4:6:0.5 carries out mixed grinding, Ran Hou
24 hours are incubated at 200 DEG C.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109417171B (en) * | 2016-07-06 | 2023-09-12 | 香港科技大学 | Adjustable and mass-producible synthesis of graded porous nanocarbon/sulfur composite cathodes |
| CN106848314B (en) * | 2017-02-27 | 2019-04-16 | 天津工业大学 | The lithium-sulfur cell preparation method of double-layer porous carbon nano-fiber and the method for preparing positive electrode using it |
| CN110010909A (en) * | 2019-04-08 | 2019-07-12 | 上海电力学院 | A kind of preparation method and application of cobalt, nitrogen co-doped carbon nano-fiber catalyst |
| CN110212171A (en) * | 2019-05-08 | 2019-09-06 | 南京海泰纳米材料有限公司 | A kind of lithium sulfur battery anode material and preparation method thereof and lithium-sulfur cell |
| CN110364720B (en) * | 2019-07-26 | 2021-02-05 | 南京海泰纳米材料有限公司 | Positive active material, positive pole piece and preparation method thereof |
| CN114361447A (en) * | 2021-12-30 | 2022-04-15 | 惠州亿纬锂能股份有限公司 | Vulcanized polymer composite material for lithium-sulfur battery and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102011075056A1 (en) * | 2011-05-02 | 2012-11-08 | Robert Bosch Gmbh | Polyacrylonitrile-sulfur composite |
| DE102011075053A1 (en) * | 2011-05-02 | 2012-11-08 | Robert Bosch Gmbh | Polyacrylonitrile-sulfur composite |
| CN105633351A (en) * | 2014-11-20 | 2016-06-01 | 中国科学院苏州纳米技术与纳米仿生研究所 | Method for increasing sulfur content of sulfur-carbon composite through vulcanization accelerator |
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Non-Patent Citations (3)
| Title |
|---|
| Preparation of mesohollow and microporous carbon nanofiber and its application in cathode material for lithium-sulfur batteries;Yuanhe Wu等;《Journal of Alloys and Compounds》;20140421;第608卷;第220-228页 * |
| Vulcanization accelerator enabled sulfurized carbon materials for high capacity and high stability of lithium-sulfur batteries;Hongwei Chen等;《J. Mater. Chem. A》;20141211;第3卷;第1392-1395页 * |
| 催化氧化法合成硫化促进剂CZ的绿色工艺;殷树梅等;《精细化工》;20060930;第23卷(第9期);第923-925页 * |
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