CN105304887A - Mesoporous microspherical titanium niobate/carbon composite material and preparation method thereof - Google Patents
Mesoporous microspherical titanium niobate/carbon composite material and preparation method thereof Download PDFInfo
- Publication number
- CN105304887A CN105304887A CN201510908743.3A CN201510908743A CN105304887A CN 105304887 A CN105304887 A CN 105304887A CN 201510908743 A CN201510908743 A CN 201510908743A CN 105304887 A CN105304887 A CN 105304887A
- Authority
- CN
- China
- Prior art keywords
- carbon composite
- preparation
- titanium
- titanium niobate
- niobate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
-
- 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
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The application discloses a preparation method of a mesoporous microspherical titanium niobate/carbon composite material. The preparation method comprises the following steps of: ultrasonically dispersing or dissolving a carbon source in ethanol; adding a niobium source and a titanium source to the obtained solution; feeding the obtained mixed solution to an autoclave, and heating for reacting; and cooling, drying, and roasting under the protection of an inert gas to obtain the mesoporous microspherical titanium niobate/carbon composite material. The invention also discloses the mesoporous microspherical titanium niobate/carbon composite material prepared by the preparation method. According to the preparation method, the advantages of nanocrystallization, carbon material coating and mesopore structured materials are organically combined, a novel mesoporous microspherical titanium niobate/carbon composite material is creatively prepared, and the material, serving as a negative electrode material of a lithium ion battery, shows excellent high-rate charging/discharging performance. In addition, the preparation method of the titanium niobate/carbon composite material has the advantages of simple process, low cost, easiness for large-scale production and the like.
Description
Technical field
The application belongs to field of lithium ion battery material, specifically, relates to a kind of mesoporous microsphere shape titanium niobate/carbon composite and preparation method thereof.
Background technology
Along with the exhaustion of traditional fossil energy and highlighting of global environmental problems, novel green, regenerative resource are all actively being found in countries in the world.Wherein chemical energy source is one of very important research direction.Because of it, lithium ion battery, as a kind of new chemical energy, has that operating voltage is high, energy density is high and the advantage such as environmental pollution is little, is widely used in various portable type electronic product.Current by people's expansive approach to fields such as electric automobile, Aero-Space, energy storage, this just has higher requirement to lithium ion battery.Electrode material is core and the key of lithium ion battery, and it plays a decisive role to the performance of lithium ion battery, and the key therefore developing high performance lithium ion battery is the high performance electrode material of exploitation.
The lithium ion battery negative material of Current commercial is mainly various material with carbon element, due to the electrode potential of material with carbon element and the current potential of lithium metal close, easily cause the generation of Li dendrite, cause safety issue; In addition material with carbon element can not carry out fast charging and discharging, and this just can not meet the requirement that electric automobile fills soon.Recent years, titanium niobate (TiNb
2o
7) this novel negative material receives the concern of people.Titanium niobate electrode potential is high, not easily causes the generation of Li dendrite and solid electrolyte oxidation film (SEI), has excellent fail safe; This material change in volume in charge and discharge process is little, has excellent cycle performance; The theoretical specific capacity (387mAh/g) of this material is a little more than the theoretical specific capacity (372mAh/g) of material with carbon element.But due to the intrinsic conductivity of titanium niobate lower, make its chemical property under high current density undesirable, constrain the application of its large-scale commercial.
The current approach improving titanium niobate chemical property is mainly nanometer and carbon coated material.Nanometer can shorten the diffusion length of lithium ion and electronics; Carbon coated material can improve the conductivity of material.Lot of documents report is pointed out in recent years, and meso-hole structure material has specific area and the large advantage of pore volume, can increase the contact of electrode material and electrolyte, be conducive to the transmission of lithium ion.The advantages of nanometer and meso-hole structure is got up by the people such as Li, synthesize and assemble by nano particle the titanium niobate mesoporous microsphere formed, excellent chemical property is shown under little multiplying power, but its large high rate performance also undesirable (LiH, ShenL, PangG, FangS, LuoH, YangKandZhangX.TiNb
2o
7nanoparticlesassembledintohierarchicalmicrospheresashigh-ratecapabilityandlongcycle-lifeanodematerialsforlithiumi onbatteries.Nanoscale, 2015,7:619-624.).In addition, the compound of current titanium niobate and material with carbon element mostly utilize be Graphene, carbon nano-tube, graphene oxide etc. as additive, and these additives need separately preparation, and expensive, are difficult to large-scale industrial production.
Summary of the invention
In view of this, technical problems to be solved in this application there is provided a kind of mesoporous microsphere shape titanium niobate/carbon composite and preparation method thereof, solve the problem that titanium niobate/carbon composite complicated process of preparation and cost in the low and prior art of titanium niobate high rate performance are high.
In order to solve the problems of the technologies described above, this application discloses a kind of preparation method of mesoporous microsphere shape titanium niobate/carbon composite, specifically comprising the following steps:
Step 1) by a certain amount of carbon source ultrasonic disperse or be dissolved in absolute ethyl alcohol;
Step 2) niobium source and titanium source are joined in above-mentioned solution respectively, wherein titanium/niobium atom ratio=0.4-0.9, stir 0.1-24 hour, wherein the concentration of niobium ion is 0.07-27mol/L;
Step 3) by step 2) gained mixed liquor is transferred in the stainless steel cauldron of inner liner polytetrafluoroethylene, be placed in thermostatic drying chamber, at 80-250 DEG C, add thermal response 1-72 hour;
Step 4) by step 3) reactant of gained is placed in drying box, dry at 50-130 DEG C, obtains yellowish powder;
Step 5) by step 4) the micro-yellow powder of gained is placed in tube furnace, under inert gas shielding, roasting 1-60 hour at 300-1150 DEG C, obtains mesoporous microsphere shape titanium niobate/carbon composite.
Further, step 1) in carbon source be one or more in acetylene black, glucose, glycine, citric acid, sucrose, carbon black.
Further, step 2) in titanium source be one or more in titanium tetrachloride, titanium trichloride, butyl titanate, titanyl sulfate, titanium tetraisopropylate, titanium tetrafluoride.
Further, step 2) in niobium source be one or more in ethanol niobium, niobium oxalate, columbium pentachloride, ammonium niobium oxalate.
Further, step 3) in heating-up temperature be 100-235 DEG C.
Further, step 5) in inert gas be one or both in argon gas, nitrogen.
Further, step 5) in sintering temperature be 410-1100 DEG C.
Disclosed herein as well is a kind of mesoporous microsphere shape titanium niobate/carbon composite prepared by above-mentioned preparation method.
Further, mesoporous microsphere is assembled by a large amount of nano particle and is formed, and microballoon is of a size of 0.2-6 micron.
Compared with prior art, the application can obtain and comprise following technique effect:
1) nanometer, material with carbon element advantage that is coated and meso-hole structure material organically combine by the present invention, creationaryly prepare a kind of novel mesoporous microsphere shape titanium niobate/carbon composite.
2) mesoporous microsphere shape titanium niobate/carbon composite of preparing of the present invention, has good conductivity, lithium ion and the advantage that electron diffusion path is short and electrode material is large with electrolyte contacts area, thus makes it have the high rate charge-discharge performance of excellence.
3) titanium niobate provided by the invention/carbon composite preparation method has technique simply, and cost is low, is easy to the advantages such as large-scale production.
Certainly, the arbitrary product implementing the application must not necessarily need to reach above-described all technique effects simultaneously.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present application, and form a application's part, the schematic description and description of the application, for explaining the application, does not form the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the x-ray diffraction pattern that the embodiment of the present application 1 prepares mesoporous microsphere shape titanium niobate/carbon composite;
Fig. 2 is ESEM (SEM) photo that the embodiment of the present application 1 prepares mesoporous microsphere shape titanium niobate/carbon composite;
Fig. 3 is transmission electron microscope (TEM) photo that the embodiment of the present invention 1 prepares mesoporous microsphere shape titanium niobate/carbon composite;
Fig. 4 is high resolution electron microscopy (HRTEM) photo that the embodiment of the present invention 1 prepares mesoporous microsphere shape titanium niobate/carbon composite;
Fig. 5 is that the embodiment of the present invention 1 prepares the first charge-discharge curve chart of mesoporous microsphere shape titanium niobate/carbon composite under different multiplying;
Fig. 6 is the circulation performance chart that the embodiment of the present invention 1 prepares mesoporous microsphere shape titanium niobate/carbon composite.
Embodiment
Drawings and Examples will be coordinated below to describe the execution mode of the application in detail, by this to the application how application technology means solve technical problem and the implementation procedure reaching technology effect can fully understand and implement according to this.
Embodiment 1
1) by a certain amount of glucose ultrasonic disperse or be dissolved in absolute ethyl alcohol;
2) join in above-mentioned solution respectively by niobium oxalate and titanium tetrachloride, wherein titanium/niobium atom is than=0.47, and stir 13 hours, wherein the concentration of niobium ion is 0.7mol/L;
3) by step 2) gained mixed liquor is transferred in the stainless steel cauldron of inner liner polytetrafluoroethylene, and be placed in thermostatic drying chamber, add thermal response at 87 DEG C 42 hours;
4) after reaction, gained reactant is placed in drying box, dry at 65 DEG C, obtain yellowish powder;
5) by step 4) the micro-yellow powder of gained is placed in tube furnace, and under argon shield, roasting 40 hours at 590 DEG C, obtains mesoporous microsphere shape titanium niobate/carbon composite.
As shown in Figure 1, in the diffraction maximum of sample and standard P DF card, the diffraction maximum of titanium niobate matches, and do not find other impurity peaks, and diffraction maximum is wider, the particle size of interpret sample is less.As shown in Figure 2, sample presents microspheroidal, and the surface ratio of microballoon is more coarse.As shown in Figure 3, microballoon is assembled by a large amount of nano particles to be formed.As shown in Figure 4, the obvious carbon-coating of one deck is had at the edge of nano particle.As shown in Figure 5, along with the increase of charge-discharge magnification, the specific discharge capacity of sample reduces gradually, is about 380mAh/g in the first discharge specific capacity of 1C multiplying power, and the first discharge specific capacity under 10C multiplying power is about 310mAh/g.As shown in Figure 6, sample has good circulation performance, and under 1C multiplying power after 100 circulations, then through 100 circulations under 10C multiplying power, reversible specific capacity still can remain on about 250mAh/g.
Embodiment 2
1) by a certain amount of acetylene black ultrasonic disperse or be dissolved in absolute ethyl alcohol;
2) join in above-mentioned solution respectively by ethanol niobium and butyl titanate, wherein titanium/niobium atom is than=0.6, and stir 6 hours, wherein the concentration of niobium ion is 11mol/L;
3) by step 2) gained mixed liquor is transferred in the stainless steel cauldron of inner liner polytetrafluoroethylene, and be placed in thermostatic drying chamber, add thermal response at 240 DEG C 67 hours;
4) after reaction, gained reactant is placed in drying box, dry at 120 DEG C, obtain yellowish powder;
5) by step 4) the micro-yellow powder of gained is placed in tube furnace, and under nitrogen protection, roasting 24 hours at 1100 DEG C, obtains mesoporous microsphere shape titanium niobate/carbon composite.
Embodiment 3
1) by a certain amount of glycine ultrasonic disperse or be dissolved in absolute ethyl alcohol;
2) join in above-mentioned solution respectively by columbium pentachloride and titanium tetraisopropylate, wherein titanium/niobium atom is than=0.53, and stir 23 hours, wherein the concentration of niobium ion is 15mol/L;
3) by step 2) gained mixed liquor is transferred in the stainless steel cauldron of inner liner polytetrafluoroethylene, and be placed in thermostatic drying chamber, add thermal response at 140 DEG C 37 hours;
4) after reaction, gained reactant is placed in drying box, dry at 79 DEG C, obtain yellowish powder;
5) by step 4) the micro-yellow powder of gained is placed in tube furnace, and under argon shield, roasting 37 hours at 820 DEG C, obtains mesoporous microsphere shape titanium niobate/carbon composite.
Embodiment 4
Step 1) by a certain amount of citric acid ultrasonic disperse or be dissolved in absolute ethyl alcohol;
Step 2) ethanol niobium and butyl titanate are joined in above-mentioned solution respectively, wherein titanium/niobium atom is than=0.4, and stir 0.1 hour, wherein the concentration of niobium ion is 0.07mol/L;
Step 3) by step 2) gained mixed liquor is transferred in the stainless steel cauldron of inner liner polytetrafluoroethylene, be placed in thermostatic drying chamber, add thermal response at 80 DEG C 72 hours;
Step 4) by step 3) reactant of gained is placed in drying box, dry at 50 DEG C, obtains yellowish powder;
Step 5) by step 4) the micro-yellow powder of gained is placed in tube furnace, under argon gas protection, roasting 60 hours at 300 DEG C, obtains mesoporous microsphere shape titanium niobate/carbon composite.
Embodiment 5
Step 1) by a certain amount of sucrose ultrasonic disperse or be dissolved in absolute ethyl alcohol;
Step 2) niobium oxalate and titanyl sulfate are joined in above-mentioned solution respectively, wherein titanium/niobium atom is than=0.9, and stir 24 hours, wherein the concentration of niobium ion is 27mol/L;
Step 3) by step 2) gained mixed liquor is transferred in the stainless steel cauldron of inner liner polytetrafluoroethylene, be placed in thermostatic drying chamber, add thermal response at 100 DEG C 1 hour;
Step 4) by step 3) reactant of gained is placed in drying box, dry at 130 DEG C, obtains yellowish powder;
Step 5) by step 4) the micro-yellow powder of gained is placed in tube furnace, under argon gas protection, roasting 1 hour at 410 DEG C, obtains mesoporous microsphere shape titanium niobate/carbon composite.
Embodiment 6
Step 1) by a certain amount of carbon black ultrasonic disperse or be dissolved in absolute ethyl alcohol;
Step 2) titanium tetrafluoride and columbium pentachloride are joined in above-mentioned solution respectively, wherein titanium/niobium atom is than=0.5, and stir 12 hours, wherein the concentration of niobium ion is 8mol/L;
Step 3) by step 2) gained mixed liquor is transferred in the stainless steel cauldron of inner liner polytetrafluoroethylene, be placed in thermostatic drying chamber, add thermal response at 120 DEG C 24 hours;
Step 4) by step 3) reactant of gained is placed in drying box, dry at 65 DEG C, obtains yellowish powder;
Step 5) by step 4) the micro-yellow powder of gained is placed in tube furnace, under nitrogen protection, roasting 15 hours at 600 DEG C, obtains mesoporous microsphere shape titanium niobate/carbon composite.
Embodiment 7
Step 1) by a certain amount of acetylene black ultrasonic disperse or be dissolved in absolute ethyl alcohol;
Step 2) niobium source and titanium source are joined in above-mentioned solution respectively, wherein titanium/niobium atom is than=0.8, and stir 20 hours, wherein the concentration of niobium ion is 24mol/L;
Step 3) by step 2) gained mixed liquor is transferred in the stainless steel cauldron of inner liner polytetrafluoroethylene, be placed in thermostatic drying chamber, add thermal response at 235 DEG C 60 hours;
Step 4) by step 3) reactant of gained is placed in drying box, dry at 100 DEG C, obtains yellowish powder;
Step 5) by step 4) the micro-yellow powder of gained is placed in tube furnace, under nitrogen protection, roasting 50 hours at 750 DEG C, obtains mesoporous microsphere shape titanium niobate/carbon composite.
In this preparation method, the selection of carbon source is particularly important, only has when selecting above-mentioned carbon source and can obtain spherical morphology, if the improper of carbon source selection can not get spherical morphology; Reaction temperature of the present invention and calcining heat are also particularly important, if select improper, then can not prepare mesoporous microsphere shape titanium niobate/carbon composite of the present invention.In the selection of reaction temperature: the heat resisting temperature of general polytetrafluoroethylene reactor is less than 260 DEG C, and temperature crosses higher position needs special substance, expensive, and dangerous large; The words that temperature is too low may can not react, and can not get product.Sintering temperature can affect degree of crystallinity and the size of product, and temperature is too high to waste energy, and the particle size of material can be made to grow up; The too low meeting of temperature makes the crystallization of material bad or can not get titanium niobate/carbon composite.
Above-mentioned explanation illustrate and describes some preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection range of claims of the present invention.
Claims (9)
1. a preparation method for mesoporous microsphere shape titanium niobate/carbon composite, is characterized in that, specifically comprise the following steps:
Step 1) by a certain amount of carbon source ultrasonic disperse or be dissolved in absolute ethyl alcohol;
Step 2) niobium source and titanium source are joined in above-mentioned solution respectively, wherein titanium/niobium atom ratio=0.4-0.9, stir 0.1-24 hour, wherein the concentration of niobium ion is 0.07-27mol/L;
Step 3) by step 2) gained mixed liquor is transferred in the stainless steel cauldron of inner liner polytetrafluoroethylene, be placed in thermostatic drying chamber, at 80-250 DEG C, add thermal response 1-72 hour;
Step 4) by step 3) reactant of gained is placed in drying box, dry at 50-130 DEG C, obtains yellowish powder;
Step 5) by step 4) the micro-yellow powder of gained is placed in tube furnace, under inert gas shielding, roasting 1-60 hour at 300-1150 DEG C, obtains mesoporous microsphere shape titanium niobate/carbon composite.
2. the preparation method of mesoporous microsphere shape titanium niobate/carbon composite according to claim 1, is characterized in that, described step 1) in carbon source be one or more in acetylene black, glucose, glycine, citric acid, sucrose, carbon black.
3. the preparation method of mesoporous microsphere shape titanium niobate/carbon composite according to claim 1, it is characterized in that, described step 2) in titanium source be one or more in titanium tetrachloride, titanium trichloride, butyl titanate, titanyl sulfate, titanium tetraisopropylate, titanium tetrafluoride.
4. the preparation method of mesoporous microsphere shape titanium niobate/carbon composite according to claim 1, is characterized in that, described step 2) in niobium source be one or more in ethanol niobium, niobium oxalate, columbium pentachloride, ammonium niobium oxalate.
5. the preparation method of mesoporous microsphere shape titanium niobate/carbon composite according to claim 1, is characterized in that, described step 3) in heating-up temperature be 100-235 DEG C.
6. the preparation method of mesoporous microsphere shape titanium niobate/carbon composite according to claim 1, is characterized in that, described step 5) in inert gas be one or both in argon gas, nitrogen.
7. the preparation method of mesoporous microsphere shape titanium niobate/carbon composite according to claim 1, is characterized in that, described step 5) in sintering temperature be 410-1100 DEG C.
8. the mesoporous microsphere shape titanium niobate/carbon composite prepared by the preparation method described in claim arbitrary in claim 1-7.
9. mesoporous microsphere shape titanium niobate/carbon composite according to claim 8, is characterized in that, mesoporous microsphere is assembled by a large amount of nano particle and formed, and microballoon is of a size of 0.2-6 micron.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510908743.3A CN105304887A (en) | 2015-12-09 | 2015-12-09 | Mesoporous microspherical titanium niobate/carbon composite material and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510908743.3A CN105304887A (en) | 2015-12-09 | 2015-12-09 | Mesoporous microspherical titanium niobate/carbon composite material and preparation method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN105304887A true CN105304887A (en) | 2016-02-03 |
Family
ID=55201865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510908743.3A Pending CN105304887A (en) | 2015-12-09 | 2015-12-09 | Mesoporous microspherical titanium niobate/carbon composite material and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105304887A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105552346A (en) * | 2016-02-26 | 2016-05-04 | 南阳师范学院 | Titanium niobate/carbon composite electrode material and preparation method thereof |
CN105776334A (en) * | 2016-04-07 | 2016-07-20 | 南阳师范学院 | Spherical Ti2Nb10O29 material and preparation method thereof |
CN106082338A (en) * | 2016-06-13 | 2016-11-09 | 东北大学 | A kind of nano-oxide Ti2nb10o29preparation method |
CN107482178A (en) * | 2017-07-06 | 2017-12-15 | 复旦大学 | A kind of hollow TiNb2O7The preparation method of microballoon |
CN108649190A (en) * | 2018-03-28 | 2018-10-12 | 浙江大学 | Vertical graphene with three-dimensional porous array structure/titanium niobium oxygen/sulphur carbon composite and its preparation method and application |
CN110224111A (en) * | 2019-05-30 | 2019-09-10 | 浙江锋锂新能源科技有限公司 | Titanium niobate material of titanium nitride cladding and preparation method thereof and cathode, battery |
CN110416492A (en) * | 2019-07-31 | 2019-11-05 | 珠海格力电器股份有限公司 | Negative pole piece and electrochemical battery |
CN110911666A (en) * | 2019-11-27 | 2020-03-24 | 合肥学院 | Method for synthesizing nitrogen-containing carbon-coated titanium niobate material for negative electrode of lithium battery |
CN111063878A (en) * | 2019-12-31 | 2020-04-24 | 湘潭大学 | Electrostatic spinning preparation of Ti0.95Nb0.95O4Method for preparing-C nano fiber negative electrode material |
CN111129472A (en) * | 2019-12-31 | 2020-05-08 | 湘潭大学 | Ti0.51Ta0.49O2Preparation method of-C nanofiber negative electrode material |
CN111725493A (en) * | 2020-06-30 | 2020-09-29 | 清陶(昆山)能源发展有限公司 | Modified niobium-titanium oxide and preparation method and application thereof |
CN112701260A (en) * | 2020-12-25 | 2021-04-23 | 华中科技大学 | In-situ carbon-coated titanium niobate composite material and preparation method and application thereof |
CN114300665A (en) * | 2021-12-30 | 2022-04-08 | 华南师范大学 | Niobium-based metal oxide mesoporous carbon sphere composite material and sodium ion battery anode material containing same |
CN114300671A (en) * | 2021-12-28 | 2022-04-08 | 蜂巢能源科技股份有限公司 | Graphite composite negative electrode material and preparation method and application thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010287496A (en) * | 2009-06-12 | 2010-12-24 | Mitsubishi Chemicals Corp | Negative electrode material for nonaqueous electrolyte secondary battery, negative electrode for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery using it |
CN104445405A (en) * | 2014-11-14 | 2015-03-25 | 南京航空航天大学 | Preparation method of porous nanoscale TiNb2O7 |
-
2015
- 2015-12-09 CN CN201510908743.3A patent/CN105304887A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010287496A (en) * | 2009-06-12 | 2010-12-24 | Mitsubishi Chemicals Corp | Negative electrode material for nonaqueous electrolyte secondary battery, negative electrode for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery using it |
CN104445405A (en) * | 2014-11-14 | 2015-03-25 | 南京航空航天大学 | Preparation method of porous nanoscale TiNb2O7 |
Non-Patent Citations (2)
Title |
---|
娄帅锋等: ""碳改性TiNb2O7及其对嵌脱锂性能的影响"", 《表面技术》 * |
李洪森等: ""多级分层结构TiNb2O7微纳米球的制备及其电化学性质"", 《第17届全国固态离子学学术会议论文摘要集》 * |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105552346A (en) * | 2016-02-26 | 2016-05-04 | 南阳师范学院 | Titanium niobate/carbon composite electrode material and preparation method thereof |
CN105776334A (en) * | 2016-04-07 | 2016-07-20 | 南阳师范学院 | Spherical Ti2Nb10O29 material and preparation method thereof |
CN105776334B (en) * | 2016-04-07 | 2017-12-15 | 南阳师范学院 | A kind of spherical Ti2Nb10O29Material and preparation method thereof |
CN106082338A (en) * | 2016-06-13 | 2016-11-09 | 东北大学 | A kind of nano-oxide Ti2nb10o29preparation method |
CN107482178B (en) * | 2017-07-06 | 2020-05-12 | 复旦大学 | Hollow TiNb2O7Method for preparing microspheres |
CN107482178A (en) * | 2017-07-06 | 2017-12-15 | 复旦大学 | A kind of hollow TiNb2O7The preparation method of microballoon |
CN108649190A (en) * | 2018-03-28 | 2018-10-12 | 浙江大学 | Vertical graphene with three-dimensional porous array structure/titanium niobium oxygen/sulphur carbon composite and its preparation method and application |
CN108649190B (en) * | 2018-03-28 | 2020-12-08 | 浙江大学 | Vertical graphene/titanium niobium oxide/sulfur carbon composite material with three-dimensional porous array structure and preparation method and application thereof |
CN110224111A (en) * | 2019-05-30 | 2019-09-10 | 浙江锋锂新能源科技有限公司 | Titanium niobate material of titanium nitride cladding and preparation method thereof and cathode, battery |
CN110416492A (en) * | 2019-07-31 | 2019-11-05 | 珠海格力电器股份有限公司 | Negative pole piece and electrochemical battery |
CN110911666A (en) * | 2019-11-27 | 2020-03-24 | 合肥学院 | Method for synthesizing nitrogen-containing carbon-coated titanium niobate material for negative electrode of lithium battery |
CN111129472A (en) * | 2019-12-31 | 2020-05-08 | 湘潭大学 | Ti0.51Ta0.49O2Preparation method of-C nanofiber negative electrode material |
CN111063878A (en) * | 2019-12-31 | 2020-04-24 | 湘潭大学 | Electrostatic spinning preparation of Ti0.95Nb0.95O4Method for preparing-C nano fiber negative electrode material |
CN111725493A (en) * | 2020-06-30 | 2020-09-29 | 清陶(昆山)能源发展有限公司 | Modified niobium-titanium oxide and preparation method and application thereof |
CN112701260A (en) * | 2020-12-25 | 2021-04-23 | 华中科技大学 | In-situ carbon-coated titanium niobate composite material and preparation method and application thereof |
CN114300671A (en) * | 2021-12-28 | 2022-04-08 | 蜂巢能源科技股份有限公司 | Graphite composite negative electrode material and preparation method and application thereof |
CN114300671B (en) * | 2021-12-28 | 2024-04-12 | 蜂巢能源科技股份有限公司 | Graphite composite negative electrode material and preparation method and application thereof |
CN114300665A (en) * | 2021-12-30 | 2022-04-08 | 华南师范大学 | Niobium-based metal oxide mesoporous carbon sphere composite material and sodium ion battery anode material containing same |
CN114300665B (en) * | 2021-12-30 | 2024-04-09 | 华南师范大学 | Niobium-based metal oxide mesoporous carbon sphere composite material and sodium ion battery anode material containing same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105304887A (en) | Mesoporous microspherical titanium niobate/carbon composite material and preparation method thereof | |
Li et al. | Efficient laser‐induced construction of oxygen‐vacancy abundant nano‐ZnCo2O4/porous reduced graphene oxide hybrids toward exceptional capacitive lithium storage | |
Xie et al. | The role of sodium in LiNi0. 8Co0. 15Al0. 05O2 cathode material and its electrochemical behaviors | |
Zou et al. | Chromium-modified Li4Ti5O12 with a synergistic effect of bulk doping, surface coating, and size reducing | |
Zhu et al. | Synthesis of MnO/C composites derived from pollen template for advanced lithium-ion batteries | |
Sun et al. | Constructing hierarchical urchin-like LiNi0. 5Mn1. 5O4 hollow spheres with exposed {111} facets as advanced cathode material for lithium-ion batteries | |
CN103441241B (en) | A kind of preparation method and application of prussian blue complex/carbon composite material | |
Lu et al. | Polypyrrole-coated sodium manganate hollow microspheres as a superior cathode for sodium ion batteries | |
Xu et al. | The preparation and role of Li2ZrO3 surface coating LiNi0. 5Co0. 2Mn0. 3O2 as cathode for lithium-ion batteries | |
Wu et al. | Characterization of spherical-shaped Li4Ti5O12 prepared by spray drying | |
Kim et al. | Preparation and cycle performance at high temperature for Li [Ni 0.5 Co 0.2 Mn 0.3] O 2 coated with LiFePO 4 | |
Shuai et al. | Electrochemically Modulated LiNi1/3Mn1/3Co1/3O2 Cathodes for Lithium‐Ion Batteries | |
CN107732205A (en) | A kind of method for preparing the flower-shaped lithium titanate composite anode material of sulfur and nitrogen co-doped carbon-coated nano | |
CN108288703A (en) | A kind of preparation method and applications of graphene coated fluorine doped lithium titanate nano wire | |
Liu et al. | Self‐Supported Transition Metal‐Based Nanoarrays for Efficient Energy Storage | |
CN105406042A (en) | Preparation method for carbon-coated super-long titanium dioxide nanotube negative electrode material of lithium ion battery | |
CN106410153A (en) | Titanium nitride-cladded nickel titanate composite material as well as preparation method and application thereof | |
Chen et al. | A Novel Strategy of Multi‐element Nanocomposite Synthesis for High Performance ZnO‐CoSe2 Supercapacitor Material Development | |
CN109928384A (en) | A kind of preparation method of nitrogen-doped porous carbon material | |
Guan et al. | Improved electrochemical performance of a Li1. 2Ni0. 2Mn0. 6O2 cathode by a hydrothermal method with a metal–organic framework as a precursor | |
CN102107906A (en) | Method for preparing lithium titanate material | |
CN113571681B (en) | Hollow titanium dioxide/nickel/carbon composite material and preparation method and application thereof | |
Tang et al. | Template-free synthesis of hierarchical MoO2 multi-shell architectures with improved lithium storage capability | |
CN105590756B (en) | A kind of preparation method of micro/nano-scale graphene/lithium titanate composite anode material | |
CN112786853B (en) | High-rate composite negative electrode material of sodium ion battery and preparation method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160203 |
|
RJ01 | Rejection of invention patent application after publication |