CN108878815A - A kind of compound lithium cell cathode material and preparation method thereof - Google Patents
A kind of compound lithium cell cathode material and preparation method thereof Download PDFInfo
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- CN108878815A CN108878815A CN201810619618.4A CN201810619618A CN108878815A CN 108878815 A CN108878815 A CN 108878815A CN 201810619618 A CN201810619618 A CN 201810619618A CN 108878815 A CN108878815 A CN 108878815A
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 41
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 150000001875 compounds Chemical class 0.000 title claims abstract description 32
- 239000010406 cathode material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims description 19
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000011159 matrix material Substances 0.000 claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 23
- 239000006258 conductive agent Substances 0.000 claims abstract description 19
- 229960003638 dopamine Drugs 0.000 claims abstract description 19
- 239000002019 doping agent Substances 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000007767 bonding agent Substances 0.000 claims abstract description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 150000003376 silicon Chemical class 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 239000010703 silicon Substances 0.000 claims abstract description 12
- -1 ether compound Chemical class 0.000 claims description 36
- 239000000203 mixture Substances 0.000 claims description 30
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 28
- 238000003763 carbonization Methods 0.000 claims description 22
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 20
- BAPJBEWLBFYGME-UHFFFAOYSA-N acrylic acid methyl ester Natural products COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 19
- 235000019441 ethanol Nutrition 0.000 claims description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 10
- 239000007853 buffer solution Substances 0.000 claims description 10
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 10
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 10
- 239000011261 inert gas Substances 0.000 claims description 10
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 10
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 10
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 10
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 10
- 238000001291 vacuum drying Methods 0.000 claims description 10
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims description 5
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- 229910052580 B4C Inorganic materials 0.000 claims description 5
- 239000005711 Benzoic acid Substances 0.000 claims description 5
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 5
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 5
- 239000005751 Copper oxide Substances 0.000 claims description 5
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 5
- 206010013786 Dry skin Diseases 0.000 claims description 5
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 5
- 235000011054 acetic acid Nutrition 0.000 claims description 5
- 239000006230 acetylene black Substances 0.000 claims description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 235000010233 benzoic acid Nutrition 0.000 claims description 5
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 5
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 5
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 5
- 239000011889 copper foil Substances 0.000 claims description 5
- 229910000431 copper oxide Inorganic materials 0.000 claims description 5
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 5
- 239000002804 dopamine agent Substances 0.000 claims description 5
- 235000019253 formic acid Nutrition 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 239000001307 helium Substances 0.000 claims description 5
- 229910052734 helium Inorganic materials 0.000 claims description 5
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000001103 potassium chloride Substances 0.000 claims description 5
- 235000011164 potassium chloride Nutrition 0.000 claims description 5
- 235000019260 propionic acid Nutrition 0.000 claims description 5
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 5
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical group CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 claims 2
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims 1
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 239000002689 soil Substances 0.000 claims 1
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 8
- 239000010405 anode material Substances 0.000 abstract description 7
- 238000009792 diffusion process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000011069 regeneration method Methods 0.000 abstract description 3
- 239000007773 negative electrode material Substances 0.000 description 5
- 239000000440 bentonite Substances 0.000 description 4
- 229910000278 bentonite Inorganic materials 0.000 description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 4
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 4
- 229910052570 clay Inorganic materials 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229920001690 polydopamine Polymers 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
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
- H01M4/362—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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
-
- 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
-
- 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
- H01M4/624—Electric conductive fillers
-
- 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
- H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
-
- 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)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a kind of compound lithium cell cathode material, the formula of the compound lithium cell cathode material is as follows：Nano nonmetal matrix, metal dopant, inorganic silicon salt, Kynoar, modifying agent, be carbonized regulator, conductive agent, bonding agent, dopamine.The present invention can shorten lithium ion diffusion length by nano nonmetal matrix, improve lithium ion diffusion coefficient, there are better volumetric properties under larger current, metal dopant and Kynoar can make metallic be attached to nano nonmetal matrix surface and coat using dopamine, contact resistance can be reduced, peptizaiton is played simultaneously, the chemical property of material especially high rate performance, which is greatly improved, can improve whole conductivity, realize multiple cross-linked and self-regeneration function, be added inorganic silicon salt can solve silicium cathode in battery charge and discharge process should volume change repeatedly adverse effect, improve the cycle performance of silicon based anode material, and battery special capacity fade amount is small.
Description
Technical field
The invention belongs to technical field of lithium batteries, more specifically more particularly to a kind of compound lithium cell cathode material.
Meanwhile the invention further relates to a kind of preparation methods of compound lithium cell cathode material.
Background technique
It by lithium metal or lithium alloy is negative electrode material, using the battery of non-aqueous electrolytic solution that lithium battery, which is a kind of,.Due to
The chemical characteristic of lithium metal is very active, so that the processing of lithium metal, preservation, use, very high to environmental requirement.So lithium
Battery is not applied for a long time.With the development of science and technology, present lithium battery has become mainstream, and negative electrode material is system
One of the critical material for making lithium ion battery is an important factor for determining performance of lithium ion battery and price.It is commercialized at present
Negative electrode material is mainly graphite, and actual capacity has been approached theoretical value (372mAh/g), and with the increase capacity of cycle-index
It is remarkably decreased, is unable to satisfy lithium ion battery growing capacity and performance requirement.On the other hand, graphite carbon material is embedding
Lithium current potential is concentrated mainly in 100-0mV (vs.Li/Li+) range, and the deposition potential of very close lithium metal is unfavorable for battery
Safety, and silicon based anode material is during lithiumation/go lithiumation, it may occur that about 300% volume expansion and contraction, this
Defect directly results in silicon based anode material and easily falls off from conductive network, influences cyclical stability, while in silicon-based anode material
The solid electrolyte interface film (SEI) that material surface is continuously generated, can also induce the specific capacity rapid decay of silicon based anode material, drop
Low service life, is unfavorable for widely popularizing.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of compound lithium battery proposed is negative
Pole material and preparation method thereof.
To achieve the above object, the present invention provides the following technical solutions：
The formula of a kind of compound lithium cell cathode material, the compound lithium cell cathode material is as follows：The non-gold of nanometer
Belong to matrix 6-10 parts, 5-7 parts of metal dopant, inorganic silicon salt 4-8 parts, 3-9 parts of Kynoar, 2-4 parts of modifying agent, carbonization is adjusted
Agent 3-5 parts, 2-6 parts of conductive agent, 1-5 parts of bonding agent, 1-3 parts of dopamine of section.
Preferably, the nano nonmetal matrix include one of boron carbide, silicon nitride, zinc oxide or calcium sulfate or
It is a variety of, and nano nonmetal matrix is mixed 10-15 minutes at 50 DEG C -70 DEG C and is changed using preceding need and calcium hydroxide
Property.
Preferably, the metal dopant includes one of silver nitrate, copper oxide or copper powder or a variety of.
Preferably, the inorganic silicon salt is one or more of bentonite, clay, montmorillonite, kaolin mixture.
Preferably, the modifying agent is in ethyl alcohol, methyl acrylate, phosphoric acid, methyl acrylate, potassium chloride and nitrogen dioxide
It is one or more.
Preferably, the carbonization regulator includes alkane, ether compound, alcohol compound, carboxylic acid compound and nothing
One of machine nitrogenous compound is a variety of, and alkane is C1~C10Alkane, ether compound includes methyl ether, ether, positive fourth
One of ether and ethylene oxide are a variety of, and alcohol compound includes one of methanol, ethyl alcohol, propyl alcohol and furfuryl alcohol or a variety of,
Carboxylic acid compound includes one of formic acid, acetic acid, propionic acid, terephthalic acid (TPA), benzoic acid and citric acid or a variety of.
Preferably, the bonding agent is one of butadiene-styrene rubber and carboxymethyl cellulose or two groups of mixtures, and is led
Electric agent is acetylene black or conductive black.
The present invention also provides a kind of preparation methods of compound lithium cell cathode material, include the following steps：
S1, conductive agent and dopamine are sequentially added into the reaction vessel containing trishydroxymethylaminomethane buffer solution,
Wherein the weight ratio of dopamine and conductive agent is 1：Then 3-5 is stirred at room temperature uniformly, filters, room temperature drying obtains described
Poly-dopamine wraps up conductive agent particle, and the pH value of trishydroxymethylaminomethane buffer solution is 8.4-8.6；
S2, nano nonmetal matrix and modifying agent are mixed 5-10 minute after addition metal dopant persistently stir,
And 160 DEG C of -200 DEG C of dryings are heated to mixture, it is kept for temperature 2-4 hours, then mixture is taken out；
S3, the mixture in S2, heating is carbonized in an inert gas atmosphere after carbonization regulator is added, heating carbonization
Temperature be 600 DEG C~1000 DEG C, and heat carbonization time be 1~10 hour, inert gas be nitrogen, argon gas and helium in
One kind；
S4, the product in S1 and S3 is then mixed and added into bonding agent and inorganic silicon saline solution in de-airing mixer
It is mixed 15-25 minutes, adjusts viscosity to 2000~4000mPas, the sieve for crossing 100-140 mesh obtains cathode gel and mixes
Close object；
S5, finally Kynoar be added S4 in product be mixed 6-8 minute, be heated to 60 DEG C~80 DEG C again add
Enter n-methyl-2-pyrrolidone solvent, then solution is coated uniformly on copper foil, pressure is pressed into after vacuum drying treatment
Piece.
Preferably, it is described stirring use be variable-frequency motor drive spiral agitator, and mixing speed be 1000~
2000r/min。
Preferably, the vacuum drying treatment to be specially in temperature be dry 8 in 80~140 DEG C of vacuum oven~
For 24 hours, and the pressure pressure of compacting is 5~10MPa.
Technical effect and advantage of the invention：A kind of compound lithium cell cathode material provided by the invention and its preparation side
Method, compared with traditional product, the present invention can shorten lithium ion diffusion length by nano nonmetal matrix, improve lithium ion
Diffusion coefficient has better volumetric properties under larger current, and metal dopant and Kynoar can be such that metallic adheres to
It is coated in nano nonmetal matrix surface and using dopamine, contact resistance can be reduced, while playing peptizaiton, the electricity of material
Chemical property especially high rate performance, which is greatly improved, can improve whole conductivity, realize multiple cross-linked and self-regeneration
Function, be added inorganic silicon salt can solve silicium cathode in battery charge and discharge process should volume change repeatedly adverse effect, improve
The cycle performance of silicon based anode material, and battery special capacity fade amount is small, the invention preparation method is simple and practical, the material used
Expect cheap and easy to get, convenient for the negative electrode material of large scale preparation excellent electrochemical performance, safety and stability, conductivity is good, service life
It is long, it is applied widely, be conducive to popularize.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall within the protection scope of the present invention.
The embodiment of the present invention is described in further detail according to following table.
Table one：To be formulated specific number in the embodiment of the present invention
| Preparation condition | Speed of agitator | Carburizing temperature | Carbonization time | Drying temperature | Drying time | Film-making pressure |
| Embodiment 1 | 1000r/min | 600℃ | 1h | 80℃ | 8h | 5MPa |
| Embodiment 2 | 1500r/min | 800℃ | 5h | 110℃ | 16h | 8MPa |
| Embodiment 3 | 2000r/min | 1000℃ | 10h | 140℃ | 24h | 10MPa |
Table two：It is illustrated for reaction condition in preparation method in the embodiment of the present invention
Embodiment 1
The formula of a kind of compound lithium cell cathode material, the compound lithium cell cathode material is as follows：The non-gold of nanometer
Belong to 6 parts of matrix, 5 parts of metal dopant, 4 parts of inorganic silicon salt, 2 parts of modifying agent, is carbonized 3 parts of regulator, leads by 3 parts of Kynoar
2 parts of electric agent, 1 part of bonding agent, 1 part of dopamine.
Specifically, the nano nonmetal matrix include one of boron carbide, silicon nitride, zinc oxide or calcium sulfate or
It is a variety of, and nano nonmetal matrix is mixed 10 minutes at 50 DEG C and is modified using preceding need and calcium hydroxide.
Specifically, the metal dopant includes one of silver nitrate, copper oxide or copper powder or a variety of.
Specifically, the inorganic silicon salt is one or more of bentonite, clay, montmorillonite, kaolin mixture.
Specifically, the modifying agent is in ethyl alcohol, methyl acrylate, phosphoric acid, methyl acrylate, potassium chloride and nitrogen dioxide
It is one or more.
Specifically, the carbonization regulator includes alkane, ether compound, alcohol compound, carboxylic acid compound and nothing
One of machine nitrogenous compound is a variety of, and alkane is C1~C10Alkane, ether compound includes methyl ether, ether, positive fourth
One of ether and ethylene oxide are a variety of, and alcohol compound includes one of methanol, ethyl alcohol, propyl alcohol and furfuryl alcohol or a variety of,
Carboxylic acid compound includes one of formic acid, acetic acid, propionic acid, terephthalic acid (TPA), benzoic acid and citric acid or a variety of.
Specifically, the bonding agent is one of butadiene-styrene rubber and carboxymethyl cellulose or two groups of mixtures, and lead
Electric agent is acetylene black or conductive black.
The present invention also provides a kind of preparation methods of compound lithium cell cathode material, include the following steps：
S1, conductive agent and dopamine are sequentially added into the reaction vessel containing trishydroxymethylaminomethane buffer solution,
Wherein the weight ratio of dopamine and conductive agent is 1：3, it is then stirred at room temperature uniformly, filters, room temperature drying obtains described poly-
Dopamine wraps up conductive agent particle, and the pH value of trishydroxymethylaminomethane buffer solution is 8.4；
S2, it nano nonmetal matrix and modifying agent are mixed metal dopant is added after five minutes persistently stirs, and is right
Mixture is heated to 160 DEG C of dryings, is kept for temperature 2 hours, then mixture is taken out；
S3, the mixture in S2, heating is carbonized in an inert gas atmosphere after carbonization regulator is added, heating carbonization
Temperature be 600 DEG C, and the time for heating carbonization is 1 hour, and inert gas is one of nitrogen, argon gas and helium；
S4, the product in S1 and S3 is then mixed and added into bonding agent and inorganic silicon saline solution in de-airing mixer
It is mixed 15 minutes, adjusts viscosity to 2000mPas, the sieve for crossing 100 mesh obtains cathode gelatinous mixture；
S5, finally Kynoar be added S4 in product be mixed 6 minutes, be heated to 60 DEG C and add N- first
Base -2-Pyrrolidone solvent, then solution is coated uniformly on copper foil, tabletting is pressed into after vacuum drying treatment.
Specifically, it is described stirring use be variable-frequency motor drive spiral agitator, and mixing speed be 1000r/
min。
Specifically, the vacuum drying treatment is specially the dry 8h in the vacuum oven that temperature is 80 DEG C, and suppress
Pressure pressure be 5MPa.
Embodiment 2
The formula of a kind of compound lithium cell cathode material, the compound lithium cell cathode material is as follows：The non-gold of nanometer
Belong to 8 parts of matrix, 6 parts of metal dopant, 6 parts of inorganic silicon salt, 3 parts of modifying agent, is carbonized 4 parts of regulator, leads by 6 parts of Kynoar
4 parts of electric agent, 3 parts of bonding agent, dopamine 2 part.
Specifically, the nano nonmetal matrix include one of boron carbide, silicon nitride, zinc oxide or calcium sulfate or
It is a variety of, and nano nonmetal matrix is mixed 13 minutes at 60 DEG C and is modified using preceding need and calcium hydroxide.
Specifically, the metal dopant includes one of silver nitrate, copper oxide or copper powder or a variety of.
Specifically, the inorganic silicon salt is one or more of bentonite, clay, montmorillonite, kaolin mixture.
Specifically, the modifying agent is in ethyl alcohol, methyl acrylate, phosphoric acid, methyl acrylate, potassium chloride and nitrogen dioxide
It is one or more.
Specifically, the carbonization regulator includes alkane, ether compound, alcohol compound, carboxylic acid compound and nothing
One of machine nitrogenous compound is a variety of, and alkane is C1~C10Alkane, ether compound includes methyl ether, ether, positive fourth
One of ether and ethylene oxide are a variety of, and alcohol compound includes one of methanol, ethyl alcohol, propyl alcohol and furfuryl alcohol or a variety of,
Carboxylic acid compound includes one of formic acid, acetic acid, propionic acid, terephthalic acid (TPA), benzoic acid and citric acid or a variety of.
Specifically, the bonding agent is one of butadiene-styrene rubber and carboxymethyl cellulose or two groups of mixtures, and lead
Electric agent is acetylene black or conductive black.
The present invention also provides a kind of preparation methods of compound lithium cell cathode material, include the following steps：
S1, conductive agent and dopamine are sequentially added into the reaction vessel containing trishydroxymethylaminomethane buffer solution,
Wherein the weight ratio of dopamine and conductive agent is 1：4, it is then stirred at room temperature uniformly, filters, room temperature drying obtains described poly-
Dopamine wraps up conductive agent particle, and the pH value of trishydroxymethylaminomethane buffer solution is 8.5；
S2, it metal dopant is added after nano nonmetal matrix and modifying agent are mixed 8 minutes persistently stirs, and is right
Mixture is heated to 180 DEG C of dryings, is kept for temperature 3 hours, then mixture is taken out；
S3, the mixture in S2, heating is carbonized in an inert gas atmosphere after carbonization regulator is added, heating carbonization
Temperature be 800 DEG C, and the time for heating carbonization is 5 hours, and inert gas is one of nitrogen, argon gas and helium；
S4, the product in S1 and S3 is then mixed and added into bonding agent and inorganic silicon saline solution in de-airing mixer
It is mixed 20 minutes, adjusts viscosity to 3000mPas, the sieve for crossing 120 mesh obtains cathode gelatinous mixture；
S5, finally Kynoar be added S4 in product be mixed 7 minutes, be heated to 70 DEG C and add N- first
Base -2-Pyrrolidone solvent, then solution is coated uniformly on copper foil, tabletting is pressed into after vacuum drying treatment.
Specifically, it is described stirring use be variable-frequency motor drive spiral agitator, and mixing speed be 1500r/
min。
Specifically, the vacuum drying treatment is specially the dry 16h in the vacuum oven that temperature is 110 DEG C, and press
The pressure pressure of system is 7MPa.
Embodiment 3
The formula of a kind of compound lithium cell cathode material, the compound lithium cell cathode material is as follows：The non-gold of nanometer
Belong to 10 parts of matrix, 7 parts of metal dopant, 8 parts of inorganic silicon salt, 4 parts of modifying agent, is carbonized 5 parts of regulator, leads by 9 parts of Kynoar
6 parts of electric agent, 5 parts of bonding agent, 3 parts of dopamine.
Specifically, the nano nonmetal matrix include one of boron carbide, silicon nitride, zinc oxide or calcium sulfate or
It is a variety of, and nano nonmetal matrix is mixed 15 minutes at 70 DEG C and is modified using preceding need and calcium hydroxide.
Specifically, the metal dopant includes one of silver nitrate, copper oxide or copper powder or a variety of.
Specifically, the inorganic silicon salt is one or more of bentonite, clay, montmorillonite, kaolin mixture.
Specifically, the modifying agent is in ethyl alcohol, methyl acrylate, phosphoric acid, methyl acrylate, potassium chloride and nitrogen dioxide
It is one or more.
Specifically, the carbonization regulator includes alkane, ether compound, alcohol compound, carboxylic acid compound and nothing
One of machine nitrogenous compound is a variety of, and alkane is C1~C10Alkane, ether compound includes methyl ether, ether, positive fourth
One of ether and ethylene oxide are a variety of, and alcohol compound includes one of methanol, ethyl alcohol, propyl alcohol and furfuryl alcohol or a variety of,
Carboxylic acid compound includes one of formic acid, acetic acid, propionic acid, terephthalic acid (TPA), benzoic acid and citric acid or a variety of.
Specifically, the bonding agent is one of butadiene-styrene rubber and carboxymethyl cellulose or two groups of mixtures, and lead
Electric agent is acetylene black or conductive black.
The present invention also provides a kind of preparation methods of compound lithium cell cathode material, include the following steps：
S1, conductive agent and dopamine are sequentially added into the reaction vessel containing trishydroxymethylaminomethane buffer solution,
Wherein the weight ratio of dopamine and conductive agent is 1：5, it is then stirred at room temperature uniformly, filters, room temperature drying obtains described poly-
Dopamine wraps up conductive agent particle, and the pH value of trishydroxymethylaminomethane buffer solution is 8.6；
S2, it nano nonmetal matrix and modifying agent are mixed metal dopant is added after ten minutes persistently stirs, and
200 DEG C of dryings are heated to mixture, is kept for temperature 4 hours, then mixture is taken out；
S3, the mixture in S2, heating is carbonized in an inert gas atmosphere after carbonization regulator is added, heating carbonization
Temperature be 1000 DEG C, and the time for heating carbonization is 10 hours, and inert gas is one of nitrogen, argon gas and helium；
S4, the product in S1 and S3 is then mixed and added into bonding agent and inorganic silicon saline solution in de-airing mixer
It is mixed 25 minutes, adjusts viscosity to 4000mPas, the sieve for crossing 140 mesh obtains cathode gelatinous mixture；
S5, finally Kynoar be added S4 in product be mixed 8 minutes, be heated to 80 DEG C and add N- first
Base -2-Pyrrolidone solvent, then solution is coated uniformly on copper foil, tabletting is pressed into after vacuum drying treatment.
Specifically, it is described stirring use be variable-frequency motor drive spiral agitator, and mixing speed be 2000r/
min。
Specifically, the vacuum drying treatment is specially to dry for 24 hours in the vacuum oven that temperature is 140 DEG C, and press
The pressure pressure of system is 10MPa.
In summary：A kind of compound lithium cell cathode material provided by the invention and preparation method thereof, with traditional production
Condition ratio, the present invention can shorten lithium ion diffusion length by nano nonmetal matrix, improve lithium ion diffusion coefficient, larger
There are better volumetric properties under electric current, metal dopant and Kynoar can make metallic be attached to nano nonmetal base
Body surface face is simultaneously coated using dopamine, can reduce contact resistance, while playing peptizaiton, the chemical property of material is especially
High rate performance, which is greatly improved, can improve whole conductivity, realize multiple cross-linked and self-regeneration function, be added inorganic
Silicon salt can solve silicium cathode in battery charge and discharge process should volume change repeatedly adverse effect, improve silicon based anode material
Cycle performance, and battery special capacity fade amount is small, and the invention preparation method is simple and practical, and the material used is cheap and easy to get, just
In the negative electrode material of large scale preparation excellent electrochemical performance, safety and stability, conductivity is good, and long service life is applied widely,
Be conducive to popularize.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (10)
1. a kind of compound lithium cell cathode material, which is characterized in that the formula of the compound lithium cell cathode material is as follows：
6-10 parts of nano nonmetal matrix, 5-7 parts of metal dopant, inorganic silicon salt 4-8 parts, 3-9 parts of Kynoar, modifying agent 2-4
Part, it is carbonized regulator 3-5 parts, 2-6 parts of conductive agent, 1-5 parts of bonding agent, 1-3 parts of dopamine.
2. a kind of compound lithium cell cathode material according to claim 1, it is characterised in that：The nano nonmetal base
Body includes one of boron carbide, silicon nitride, zinc oxide or calcium sulfate or a variety of, and nano nonmetal matrix using preceding need with
Calcium hydroxide is mixed 10-15 minutes at 50 DEG C -70 DEG C and is modified.
3. a kind of compound lithium cell cathode material according to claim 1, it is characterised in that：The metal dopant packet
Include one of silver nitrate, copper oxide or copper powder or a variety of.
4. a kind of compound lithium cell cathode material according to claim 1, it is characterised in that：The inorganic silicon salt is swollen
Moisten one or more of soil, clay, montmorillonite, kaolin mixture.
5. a kind of compound lithium cell cathode material according to claim 1, it is characterised in that：The modifying agent is second
One of alcohol, methyl acrylate, phosphoric acid, methyl acrylate, potassium chloride and nitrogen dioxide are a variety of.
6. a kind of compound lithium cell cathode material according to claim 1, it is characterised in that：The carbonization regulator packet
Include one of alkane, ether compound, alcohol compound, carboxylic acid compound and inorganic nitrogen-containing compound or a variety of, and alkane
Hydrocarbon is C1~C10Alkane, ether compound includes one of methyl ether, ether, n-butyl ether and ethylene oxide or a variety of, alcohols
Compound includes one of methanol, ethyl alcohol, propyl alcohol and furfuryl alcohol or a variety of, carboxylic acid compound include formic acid, acetic acid, propionic acid,
One of terephthalic acid (TPA), benzoic acid and citric acid are a variety of.
7. a kind of compound lithium cell cathode material according to claim 1, it is characterised in that：The bonding agent is butylbenzene
Perhaps two groups of mixtures and conductive agent are acetylene black or conductive black for one of rubber and carboxymethyl cellulose.
8. a kind of preparation method of compound lithium cell cathode material described in claim 1, which is characterized in that including walking as follows
Suddenly：
S1, conductive agent and dopamine are sequentially added into the reaction vessel containing trishydroxymethylaminomethane buffer solution, wherein
The weight ratio of dopamine and conductive agent is 1：Then 3-5 is stirred at room temperature uniformly, filters, room temperature drying, obtains described poly- more
Bar amine wraps up conductive agent particle, and the pH value of trishydroxymethylaminomethane buffer solution is 8.4-8.6；
S2, nano nonmetal matrix and modifying agent are mixed 5-10 minute after addition metal dopant persistently stir, and it is right
Mixture is heated to 160 DEG C of -200 DEG C of dryings, is kept for temperature 2-4 hours, then mixture is taken out；
S3, the mixture in S2, heating is carbonized in an inert gas atmosphere after carbonization regulator is added, and heats the temperature of carbonization
Degree is 600 DEG C~1000 DEG C, and the time for heating carbonization is 1~10 hour, and inert gas is one in nitrogen, argon gas and helium
Kind；
S4, then the product in S1 and S3 is mixed and added into bonding agent and inorganic silicon saline solution mixes in de-airing mixer
Stirring 15-25 minutes adjusts viscosity to 2000~4000mPas, and the sieve for crossing 100-140 mesh obtains cathode gelatinous mixture；
S5, finally Kynoar be added S4 in product be mixed 6-8 minutes, be heated to 60 DEG C~80 DEG C and add N-
N-methyl-2-2-pyrrolidone N solvent, then solution is coated uniformly on copper foil, tabletting is pressed into after vacuum drying treatment.
9. a kind of preparation method of compound lithium cell cathode material according to claim 8, it is characterised in that：It is described to stir
Mix use be variable-frequency motor drive spiral agitator, and mixing speed be 1000~2000r/min.
10. a kind of preparation method of compound lithium cell cathode material according to claim 8, it is characterised in that：It is described
Vacuum drying treatment, which is specially in temperature, is dry 8 in 80~140 DEG C of vacuum oven~for 24 hours, and the pressure pressure suppressed
For 5~10MPa.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311109A (en) * | 2019-06-28 | 2019-10-08 | 徐州硕祥信息科技有限公司 | A kind of preparation method based on copper oxide composite lithium ion battery negative electrode material |
| CN114597380A (en) * | 2022-03-25 | 2022-06-07 | 中南大学 | Preparation method of fluorine and nitrogen doped hollow carbon aerogel sulfur-loaded composite material as lithium-sulfur battery anode |
| CN116675967A (en) * | 2023-07-31 | 2023-09-01 | 赣州诺威科技有限公司 | Lithium battery positive film material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140032835A (en) * | 2012-09-07 | 2014-03-17 | 주식회사 엘지화학 | Surface-treated si negative electrode active material |
| CN104944419A (en) * | 2015-06-29 | 2015-09-30 | 中国科学院宁波材料技术与工程研究所 | Graphitized carbon material and preparation method thereof, and supercapacitor |
| CN107732169A (en) * | 2017-09-17 | 2018-02-23 | 亚士创能科技(上海)股份有限公司 | Lithium battery silicon based anode material and preparation method thereof, GND and lithium battery |
-
2018
- 2018-06-15 CN CN201810619618.4A patent/CN108878815B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140032835A (en) * | 2012-09-07 | 2014-03-17 | 주식회사 엘지화학 | Surface-treated si negative electrode active material |
| CN104944419A (en) * | 2015-06-29 | 2015-09-30 | 中国科学院宁波材料技术与工程研究所 | Graphitized carbon material and preparation method thereof, and supercapacitor |
| CN107732169A (en) * | 2017-09-17 | 2018-02-23 | 亚士创能科技(上海)股份有限公司 | Lithium battery silicon based anode material and preparation method thereof, GND and lithium battery |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311109A (en) * | 2019-06-28 | 2019-10-08 | 徐州硕祥信息科技有限公司 | A kind of preparation method based on copper oxide composite lithium ion battery negative electrode material |
| CN110311109B (en) * | 2019-06-28 | 2021-02-26 | 徐州硕祥信息科技有限公司 | Preparation method of copper oxide-based composite lithium battery negative electrode material |
| CN114597380A (en) * | 2022-03-25 | 2022-06-07 | 中南大学 | Preparation method of fluorine and nitrogen doped hollow carbon aerogel sulfur-loaded composite material as lithium-sulfur battery anode |
| CN114597380B (en) * | 2022-03-25 | 2023-11-28 | 中南大学 | Preparation method of fluorine and nitrogen doped hollow carbon aerogel sulfur-carrying composite material as positive electrode of lithium sulfur battery |
| CN116675967A (en) * | 2023-07-31 | 2023-09-01 | 赣州诺威科技有限公司 | Lithium battery positive film material and preparation method thereof |
| CN116675967B (en) * | 2023-07-31 | 2023-10-31 | 赣州诺威科技有限公司 | Lithium battery positive film material and preparation method thereof |
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