CN106654281A - TaC@onion-like carbon/amorphous carbon nanocomposite as well as preparation method and application thereof - Google Patents
TaC@onion-like carbon/amorphous carbon nanocomposite as well as preparation method and application thereof Download PDFInfo
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- CN106654281A CN106654281A CN201710018397.0A CN201710018397A CN106654281A CN 106654281 A CN106654281 A CN 106654281A CN 201710018397 A CN201710018397 A CN 201710018397A CN 106654281 A CN106654281 A CN 106654281A
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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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention provides a TaC@onion-like carbon/amorphous carbon nanocomposite as well as a preparation method and an application thereof and belongs to the technical field of preparation of nanomaterials. The microstructure of the nanocomposite is as follows: a nanocapsule adopting a TaC@onion-like carbon core-shell structure is embedded into amorphous carbon nanosheets. Tantalum powder and coal powder are pressed into a block body in a certain atomic percent with a plasma arc discharge method to serve as an anode target material, graphite is adopted as a cathode material, argon and hydrogen are used as working gases, a certain distance is reserved between the cathode graphite electrode and the anode target material, namely, the tantalum-coal powder block body, arc discharge is triggered between the anode and the cathode, and the TaC@onion-like carbon/amorphous carbon nanocomposite is obtained. The nanocomposite shows good circulation performance when serving as a negative electrode of a lithium-ion battery and is a promising lithium-ion battery negative electrode material. The preparation method adopts a simple preparation process, is low in cost and facilitates industrial production.
Description
Technical field
The invention belongs to technical field of material, and in particular to a kind of TaC@onions shape carbon/amorphous carbon is nano combined
Thing and its preparation method and application.
Background technology
As people are growing to the demand of the energy, the aggravation of fossil fuel reserves reductions and environmental pollution, open
Sending out the novel energy of clean and effective becomes focus of concern.Lithium ion battery as a kind of energy storing device, with its ring
The features such as guarantor, light, high power capacity, long-life, is widely used in small portable device.Lithium ion battery plus-negative plate material is
Determine the central factor of its performance.At present business-like negative material is mainly graphite material, and its theoretical specific capacity only has
372mAh/g, can not meet demand of the people to battery performance.Therefore, novel cathode material for lithium ion battery is researched and developed
It is significant.
Although transition metal carbides possess the advantages such as nontoxic, rich reserves, inexpensive and excellent catalytic performance, but
Because it has less specific capacity in theory, transition metal carbides are not used as a long time the negative pole material of lithium ion battery
Material.2012, Su et al first reported core shell structure Fe@Fe3C/C nano-complexes have stable discharge capacity～
500mAh/g, demonstrates it as the potentiality of lithium ion battery negative material.Although, Fe and Fe3C is for Li+Intercalation is almost without work
Property, but author points out Fe3C can promote the formation/decomposable process of solid electrolyte interface (SEI) film reversible as catalyst,
So as to improve the chemical property of carbon based negative electrodes.(L.Su,Z.Zhou,P.Shen.Core-shell Fe@Fe3C/C
nanocompositesas anode materials for Li ion batteries.Electrochimica Acta 87
(2013)180-185).It is well known that hindering carbide as lithium ion battery negative material, also following two obstacles：(1)
Volumetric expansion/contraction during repetitive cycling；(2) low electric conductivity of carbide.Currently for grinding for two above problem
Study carefully, be broadly divided into three kinds of approach and solve：(1) nanosizing of material；(2) Composite of active material；(3) nano composite material.
Wherein the third approach is most widely used under study for action, wherein in the selection of base material, due to material with carbon element Stability Analysis of Structures, in charge and discharge
Volume Changes are relatively small in electric process, and electric conductivity and heat, chemical stability are good, with certain specific capacity, therefore receive
Extensive concern is arrived.Under normal circumstances, the carbon component in nano-complex has dual-use function：Promote carbon as conductive additive
The electron transport of compound and as elastic cord breaker strengthen electrode structure stability.
Lot of domestic and international scholar is devoted to the preparation method research of transition metal carbides/carbon composite, and brief introduction is such as
Under：
Chinese invention patent " carbon covered metal, the synthetic method of carbon covered metal carbide nanometer the micro mist " (patent No.:
CN99120144.2 AC arc discharge method) is adopted, is put by plasma in vaccum consumable electrode electric arc furnace using carbon and metal
Electricity evaporates simultaneously, and Jing chemical reactions generate carbon covered metal or metal carbides nano powder.
Chinese invention patent " comprising carbon composite of metal carbide particles being dispersed therein and preparation method thereof "
(the patent No.:200580012680.8) be related to carbon composite, the carbon composite comprising be dispersed in carbon, carbon fiber or carbon/
Metal carbide particles in carbon fiber substrate and without free metal particle, wherein metal carbide particles are at least particle table
Face or whole particle are metal carbides, by source metal (i.e. selected from metallic particles, metal oxide particle or composition metal oxygen
At least one in compound particle) and carbon source (i.e. thermosetting resin) synthesize in the original location.
A kind of Chinese invention patent " charcoal Base Metal nitride, the preparation method of carbide electrochemical capacitance the material " (patent No.：
200710022253.9) raw material are obtained into hydrogel precursor by gel reaction, gained hydrogel is in nitriding gas or hydrogen
The lower Jing constant pressure and dries of gas effect and carbonization, are obtained charcoal base transition metal nitride, carbide electrochemical capacitance material.
A kind of Chinese invention patent " C/Fe3C lithium ion battery negative materials and preparation method thereof " (patent No.:
201010532415.5) to raw material using thermal polymerization in organic solvent, precursor is obtained, then under argon gas atmosphere protection,
It is heat-treated, is obtained C/Fe3C compounds, it is by amorphous carbon and Fe3C is constituted.
Chinese invention patent " preparation method of onion carbon carrying transition metal carbide nanometer the compound " (patent No.:
201010600970.7) raw material are fitted in proportion in closed reactor, by heating response kettle, are aided in using initiator
Chemical vapour deposition technique single step reaction obtain the nano-complex of onion carbon carrying transition metal carbide.
A kind of Chinese invention patent " method for preparing metal carbides or carbon-clad metal the carbide " (patent No.：
201210562395.5) metal salt powder is formed into metallic oxide precursor thing in high-temperature roasting, with liquid carbon compound work
Metal carbides or carbon-clad metal carbon are prepared for liquid carbon source and metallic oxide precursor thing carry out reduction and carburizing reagent
Compound.
Chinese invention patent " Macro film being made up of Nano capsule and nanotube and fiber absorbing material and its preparation side
The method " (patent No.:201310065805.X) plasma arc discharge technology is utilized, be prepared for by Fe@C, Fe3C@C nano glue
Capsule and CNT are interweaved the Macro film for connecting and composing.
Chinese invention patent " a kind of cobalt tungsten bimetallic carbide of carbon coating, the preparation method and applications " (patent No.：
201410723029.2) carbon is obtained by the mixture of one-step calcination cobalt, two kinds of metallic compounds of tungsten and nitrogen-rich organic thing
The cobalt tungsten bimetallic carbide of cladding.
A kind of Chinese invention patent " tubulose core shell structure graphitie@Fe3Composite of C and preparation method thereof and should
With " (the patent No.：201410827354.3) with graphite worm, ferrocene, 30% hydrogen peroxide as raw material, by simple liquid phase side
Method is simultaneously sintered under inert gas shielding, has prepared graphite@Fe3C nano compound.
Since it is desired that high temperature, using poisonous and expensive chemical precursor, advanced equipment and dull flow process, the above
Transition metal carbide/C compound preparation methods are generally difficult to industrialized.According to application demand, people generally wish to obtain
Obtain process is simple, the transition metal carbide/C nano compound of low cost.However, Jing retrievals, TaC@onion shape carbon/amorphous
Carbon nano-composite material and a step prepare the method for this kind of nano composite material and have not been reported.
The content of the invention
It is an object of the invention to provide a kind of TaC@onions shape carbon/amorphous carbon nano-complex and preparation method thereof, with
The nano-complex that phase obtains is used as the good preparation process simultaneously of cycle performance during lithium ion battery negative is simple, low cost.
To achieve these goals, the present invention is achieved by the following technical programs.
The present invention prepares a kind of TaC@onions shape carbon/amorphous carbon nano-complex, and the nano-complex microstructure is
The embedded amorphous carbon nanometer sheet of TaC@onion shape carbon nuclear shell structure nanos capsule.Wherein, the grain of TaC@onions shape carbon Nano capsule
Footpath is 2～15nm, and kernel is TaC nano particles, and shell is onion shape carbon.
Present invention also offers the preparation method of above-mentioned TaC@onions shape carbon/amorphous carbon nano-complex, the material is
Using plasma arc discharge technology, original position prepares under working gas；Wherein：
Graphite electrode is adopted for negative electrode, tantalum-coal powdered block is anode target material, negative electrode graphite electrode and anode target material tantalum-
The distance of 2～30mm is kept between coal powdered block；The voltage of arc discharge is 10～40V；Working gas is argon gas and hydrogen
Gas.
The anode target material is tantalum-coal powdered block, and tantalum powder and coal dust are pressed into into block under pressure 1MPa～1GPa
As the anode target material material of plasma arc furnace, the mass percent in the anode target material material shared by tantalum is 30～
50%.
The partial pressure of the argon working gas is 0.01～0.5MPa, and the partial pressure of hydrogen gas is 0.01～0.3MPa.
Present invention also offers TaC@onions shape carbon/amorphous carbon nano-complex is used as lithium ion battery negative material
Using.
The method of the application is：(1) according to mass ratio 7:2:1 ratio weighs TaC@onions shape carbon/amorphous carbon and receives
Rice compound, acetylene black, segregation PVF, are put in crucible and grind, and are subsequently adding 1-METHYLPYRROLIDONE and continue grinding, make
Mixture in the pasty state, is then uniformly applied to it on Copper Foil, in 100 DEG C or so dry 12～20h, afterwards carries out this Copper Foil
Roll, be cut into the certain disk of diameter, make electrode slice；(2) in the glove box full of argon gas, in conventional manner by electrode
Piece, barrier film, lithium piece and nickel foam are assembled into button battery.
Constant current charge-discharge loop test is carried out at room temperature with test method, the circulation of button battery made by measure
Stability.
Hinge structure, the present invention's has the prominent advantages that
1) present invention has prepared first TaC@onions shape carbon/amorphous carbon nano-complex；
2) preparation process condition of the present invention is simple, and low cost, it is easy to control disposably generates product, is TaC@onion shapes
The practical application of carbon/amorphous carbon nano-complex provides condition；
3) the prepared TaC@onions shape carbon/amorphous carbon nano-complex of the present invention is with TaC@onion shape carbon core shell structures
In the embedded amorphous carbon nanometer sheet of Nano capsule, the structure is conducive to the diffusion of lithium ion, buffer volumes change and electrical conductivity
Improve, and TaC nano-particles have the effect of catalytic modification SEI films so that and the partial reduction products of SEI films are reversible, therefore
Be conducive to the chemical property of nano composite material, be particularly conducive to its cyclical stability.
Description of the drawings
Fig. 1 is the schematic device for preparing TaC@onions shape carbon/amorphous carbon nano-complex of the present invention；
Label in figure：1st, upper lid；2nd, negative electrode；3rd, valve；4th, anode target material；5th, observation window；6th, baffle plate；7th, copper anode；8th, press from both sides
Head；9th, graphite crucible；10th, DC pulse power supply；A, cooling water；B, argon gas；C, hydrogen.
Fig. 2 is the X-ray diffraction of TaC@onions shape carbon/amorphous carbon nano-complex prepared by the embodiment of the present invention 1
(XRD) collection of illustrative plates；
According to JCPDS PDF cards, nano-complex principal phase can be retrieved for TaC crystalline phases composition.2θ≈20oThe width at place
Peak is the characteristic peak of amorphous carbon, because onion shape carbon is in shell, so XRD cannot detect onion shape carbon phase.
Fig. 3 is the transmission electron microscopy of TaC@onions shape carbon/amorphous carbon nano-complex prepared by the embodiment of the present invention 1
Mirror (TEM) image；
As can be seen from the figure TaC@onions shape carbon Nano capsule is distributed in amorphous carbon nanometer sheet, its Nano capsule
Particle diameter is 2～15nm.
Fig. 4 is the high-resolution transmission of the TaC@onions shape carbon/amorphous carbon nano-complex prepared by the embodiment of the present invention 1
Electron microscope image；
As can be seen from the figure gained TaC@onions shape carbon/amorphous carbon nano-complex is TaC@onion shape carbon nanometre glues
In the embedded amorphous carbon nanometer sheet of capsule, wherein, TaC@onion shape carbon Nano capsules kernel is TaC nano particles, and shell is onion
Shape carbon.
Fig. 5 is the TaC@onions shape carbon/amorphous carbon nano-complex prepared in the embodiment of the present invention 1 as negative material
Circulation discharge curve；
As seen from the figure, charge and discharge cycles test is carried out with the electric current of 100mA/g, circulating the discharge capacity after 100 times is
663.6mAh/g。
Fig. 6 is the TaC@onions shape carbon/amorphous carbon nano-complex prepared in the embodiment of the present invention 2 as negative material
Circulation discharge curve；
As seen from the figure, charge and discharge cycles test is carried out with the electric current of 100mA/g, circulating the discharge capacity after 100 times is
627.5mAh/g。
Specific embodiment
With reference to embodiment, the invention will be further described, but the present invention is not limited to following embodiments.
Embodiment 1
Lid 1 on device shown in Fig. 1 is opened, is made negative electrode 2 with graphite and is fixed on chuck 8, institute consumable anode target 4
Composition is pure tantalum powder and coal dust (mass ratio 50:50) block being pressed into, is placed on the copper anode 7 of logical cooling water, in logical cooling water
Copper anode and target between be graphite crucible 9.Keep between negative electrode graphite electrode and 4 anode target materials tantalum-coal powdered block
The distance of 30mm.Lid 1 on lid mounted device, leads to cooling water a, whole operating room is vacuumized by valve 3 after, is passed through argon gas b and hydrogen
Gas c, the partial pressure of argon gas is 0.5MPa, and the partial pressure of hydrogen is 0.3MPa, connects DC pulse power supply 10, and voltage is 40V.Arc light is put
Adjustment work electric current keeps relative stability with voltage in electric process.Prepared TaC@onions shape carbon/amorphous carbon nano-complex, should
Nano-complex microstructure is wherein TaC@in the embedded amorphous carbon nanometer sheet of TaC@onion shape carbon nuclear shell structure nanos capsule
The particle diameter of onion shape carbon Nano capsule is 2～15nm, and kernel is TaC nano particles, and shell is onion shape carbon, such as Fig. 3, Fig. 4 institute
Show.
According to mass ratio 7:2:1 ratio weighs TaC@onions shape carbon/amorphous carbon nano-complex, acetylene black, segregation
PVF, is put in crucible and grinds, and is subsequently adding 1-METHYLPYRROLIDONE and continues grinding, makes mixture in the pasty state, then will
It is uniformly applied on Copper Foil, and at 100 DEG C or so 12h is dried, and is afterwards rolled this Copper Foil, is cut into the certain circle of diameter
Piece, makes electrode slice；In the glove box full of argon gas, electrode slice, barrier film, lithium piece and nickel foam are assembled in conventional manner
Button battery.At room temperature, constant current charge-discharge loop test is carried out with 100mA/g, after 100 circulations, its capacitance
For 663.6mAh/g, such as Fig. 5. this explanation TaC onions shape carbon/amorphous carbon nano-complex is used as lithium ion battery negative material
Material has good cycle performance.
Embodiment 2
Lid 1 on device shown in Fig. 1 is opened, is made negative electrode 2 with graphite and is fixed on chuck 8, institute consumable anode target 4
Composition is pure tantalum powder and coal dust (mass ratio 30:70) block being pressed into, is placed on the copper anode 7 of logical cooling water, in logical cooling water
Copper anode and target between be graphite crucible 9.Keep between negative electrode graphite electrode and 4 anode target materials tantalum-coal powdered block
The distance of 20mm.Lid 1 on lid mounted device, leads to cooling water a, whole operating room is vacuumized by valve 3 after, is passed through argon gas b and hydrogen
Gas c, the partial pressure of argon gas is 0.5MPa, and the partial pressure of hydrogen is 0.3MPa, connects DC pulse power supply 10, and voltage is 10V.Arc light is put
Adjustment work electric current keeps relative stability with voltage in electric process.Prepared TaC@onions shape carbon/amorphous carbon nano-complex, should
Nano-complex microstructure is in the embedded amorphous carbon nanometer sheet of TaC@onion shape carbon nuclear shell structure nanos capsule.Wherein TaC@
The particle diameter of onion shape carbon Nano capsule is 2～15nm, and kernel is TaC nano particles, and shell is onion shape carbon.
According to mass ratio 7:2:1 ratio weighs TaC@onions shape carbon/amorphous carbon nano-complex, acetylene black, segregation
PVF, is put in crucible and grinds, and is subsequently adding 1-METHYLPYRROLIDONE and continues grinding, makes mixture in the pasty state, then will
It is uniformly applied on Copper Foil, and at 100 DEG C or so 20h is dried, and is afterwards rolled this Copper Foil, is cut into the certain circle of diameter
Piece, makes electrode slice；In the glove box full of argon gas, electrode slice, barrier film, lithium piece and nickel foam are assembled in conventional manner
Button battery.At room temperature, constant current charge-discharge loop test is carried out with 100mA/g, after 100 circulations, its capacitance
For 627.5mAh/g, such as Fig. 6. this explanation TaC onions shape carbon/amorphous carbon nano-complex is used as lithium ion battery negative material
Material has good cycle performance.
Embodiment 3
Lid 1 on device shown in Fig. 1 is opened, is made negative electrode 2 with graphite and is fixed on chuck 8, institute consumable anode target 4
Composition is pure tantalum powder and coal dust (mass ratio 50:50) block being pressed into, is placed on the copper anode 7 of logical cooling water, in logical cooling water
Copper anode and target between be graphite crucible 9.Keep between negative electrode graphite electrode and 4 anode target materials tantalum-coal powdered block
The distance of 30mm.Lid 1 on lid mounted device, leads to cooling water a, whole operating room is vacuumized by valve 3 after, is passed through argon gas b and hydrogen
Gas c, the partial pressure of argon gas is 0.5MPa, and the partial pressure of hydrogen is 0.3MPa, connects DC pulse power supply 10, and voltage is 20V.Arc light is put
Adjustment work electric current keeps relative stability with voltage in electric process.Prepared TaC@onions shape carbon/amorphous carbon nano-complex, should
Nano-complex microstructure is in the embedded amorphous carbon nanometer sheet of TaC@onion shape carbon nuclear shell structure nanos capsule.Wherein TaC@
The particle diameter of onion shape carbon Nano capsule is 2～15nm, and kernel is TaC nano particles, and shell is onion shape carbon.
Embodiment 4
Lid 1 on device shown in Fig. 1 is opened, is made negative electrode 2 with graphite and is fixed on chuck 8, institute consumable anode target 4
Composition is pure tantalum powder and coal dust (mass ratio 40:60) block being pressed into, is placed on the copper anode 7 of logical cooling water, in logical cooling water
Copper anode and target between be graphite crucible 9.Keep between negative electrode graphite electrode and 4 anode target materials tantalum-coal powdered block
The distance of 20mm.Lid 1 on lid mounted device, leads to cooling water a, whole operating room is vacuumized by valve 3 after, is passed through argon gas b and hydrogen
Gas c, the partial pressure of argon gas is 0.2MPa, and the partial pressure of hydrogen is 0.2MPa, connects DC pulse power supply 10, and voltage is 30V.Arc light is put
Adjustment work electric current keeps relative stability with voltage in electric process.Prepared TaC@onions shape carbon/amorphous carbon nano-complex, should
Nano-complex microstructure is in the embedded amorphous carbon nanometer sheet of TaC@onion shape carbon nuclear shell structure nanos capsule.Wherein TaC@
The particle diameter of onion shape carbon Nano capsule is 2～15nm, and kernel is TaC nano particles, and shell is onion shape carbon.
Embodiment 5
Lid 1 on device shown in Fig. 1 is opened, is made negative electrode 2 with graphite and is fixed on chuck 8, institute consumable anode target 4
Composition is pure tantalum powder and coal dust (mass ratio 45:55) block being pressed into, is placed on the copper anode 7 of logical cooling water, in logical cooling water
Copper anode and target between be graphite crucible 9.Keep between negative electrode graphite electrode and 4 anode target materials tantalum-coal powdered block
The distance of 10mm.Lid 1 on lid mounted device, leads to cooling water a, whole operating room is vacuumized by valve 3 after, is passed through argon gas b and hydrogen
Gas c, the partial pressure of argon gas is 0.01MPa, and the partial pressure of hydrogen is 0.01MPa, connects DC pulse power supply 10, and voltage is 40V.Arc light
Adjustment work electric current keeps relative stability with voltage in discharge process.Prepared TaC@onions shape carbon/amorphous carbon nano-complex,
The nano-complex microstructure is in the embedded amorphous carbon nanometer sheet of TaC@onion shape carbon nuclear shell structure nanos capsule.Its TaC@
The particle diameter of onion shape carbon Nano capsule is 2～15nm, and kernel is TaC nano particles, and shell is onion shape carbon.
Claims (3)
1. a kind of TaC@onions shape carbon/amorphous carbon nano-complex, it is characterised in that the nano-complex microstructure is
The embedded amorphous carbon nanometer sheet of TaC@onion shape carbon nuclear shell structure nanos capsule；Wherein, the grain of TaC@onions shape carbon Nano capsule
Footpath is 2～15nm, and kernel is TaC nano particles, and shell is onion shape carbon.
2. the preparation method of TaC@onions shape carbon/amorphous carbon nano-complex as claimed in claim 1, it is characterised in that：Should
Material is that original position prepares under working gas using plasma arc discharge technology；Wherein：
Graphite electrode is adopted for negative electrode, tantalum-coal powdered block is anode target material, negative electrode graphite electrode and anode target material tantalum-coal dust
The distance of 2～30mm is kept between last block；The voltage of arc discharge is 10～40V；Working gas is argon gas and hydrogen gas；
Mass percent in the anode material shared by tantalum is 30～50%；The partial pressure of the argon gas be 0.01～0.5MPa, hydrogen
The partial pressure of gas is 0.01～0.3MPa.
3. TaC@onions shape carbon/amorphous carbon nano-complex that such as claim 2 preparation method is obtained is used as lithium ion battery
The application of negative material.
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Citations (4)
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|---|---|---|---|---|
| KR20020003742A (en) * | 2000-07-03 | 2002-01-15 | 손헌준 | Anode materials of lithium secondary batteries |
| CN101916859A (en) * | 2009-03-12 | 2010-12-15 | 巴莱诺斯清洁能源控股公司 | Nitride and carbide anode materials |
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| CN103173723A (en) * | 2013-03-01 | 2013-06-26 | 中国科学院金属研究所 | Macro film and fiber consisting of nanocapsules and nanotubes and preparation method thereof |
-
2017
- 2017-01-11 CN CN201710018397.0A patent/CN106654281A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020003742A (en) * | 2000-07-03 | 2002-01-15 | 손헌준 | Anode materials of lithium secondary batteries |
| CN101916859A (en) * | 2009-03-12 | 2010-12-15 | 巴莱诺斯清洁能源控股公司 | Nitride and carbide anode materials |
| CN102751530A (en) * | 2011-06-02 | 2012-10-24 | 张潘毅 | High capacity lithium ion battery containing metal conductive substances |
| CN103173723A (en) * | 2013-03-01 | 2013-06-26 | 中国科学院金属研究所 | Macro film and fiber consisting of nanocapsules and nanotubes and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| XIANGUO LIU，SIU WING OR等: "NiO/C nanocapsules with onion-like carbon shell as anode material for lithium ion batteries", 《CARBON》 * |
| 谢克昌: "《煤的结构与反应性》", 31 October 2002, 科学出版社 * |
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