CN102299312A - Three-dimensional porous lithium vanadate anode material and preparation method thereof - Google Patents

Three-dimensional porous lithium vanadate anode material and preparation method thereof Download PDF

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CN102299312A
CN102299312A CN2011102253078A CN201110225307A CN102299312A CN 102299312 A CN102299312 A CN 102299312A CN 2011102253078 A CN2011102253078 A CN 2011102253078A CN 201110225307 A CN201110225307 A CN 201110225307A CN 102299312 A CN102299312 A CN 102299312A
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dimensional porous
lithium vanadate
porous lithium
anode material
lithium ion
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CN102299312B (en
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涂江平
乔彦强
王秀丽
谷长栋
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Zhejiang University ZJU
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Abstract

The invention discloses a three-dimensional porous lithium vanadate anode material and a preparation method thereof. The three-dimensional porous lithium vanadate anode material comprises a LiV3O8 phase and a Li0.3V2O5 phase, wherein a mass ratio of the LiV3O8 phase to the Li0.3V2O5 phase is (2.12 to 2.80): 1. A primary particle of the three-dimensional porous lithium vanadate anode material is in a shape of a sheet, wherein length of the primary particle is in a range of 100 to 1000 nanometers, width is in a range of 50 to 600 nanometers and thickness is in a range of 10 to 80 nanometers. A secondary particle of the three-dimensional porous lithium vanadate anode material is cubical, wherein length of a side of the secondary particle is in a range of 20 to 40 micrometers. The three-dimensional porous lithium vanadate anode material has an aperture distribution range of 20 to 100 nanometers. The preparation method comprises the following steps of adding LiOH.H2O, NH4VO3 and glycine into deionized water, stirring to mix them, drying the mixture to obtain black precursor powder, and sintering the black precursor powder in an air atmosphere to obtain desired products. The preparation method has the advantages of simple process, safe operation and favorable convenience for industrialized production. The three-dimensional porous lithium vanadate anode material can be utilized for lithium ion battery anode assembled batteries, and has a high charging and discharging capacity and good cycle stability.

Description

Three-dimensional porous lithium vanadate positive electrode and preparation method thereof
Technical field
The invention belongs to the lithium ion battery field, relate in particular to lithium vanadate positive electrode of a kind of high-capacity lithium ion cell that can be used for energy storage and preparation method thereof.
Background technology
Along with the quick consumption of fossil fuel and because the Global Greenhouse Effect of combustion of fossil fuels aggravation, make that to seek clean reproducible energy extremely urgent.Lithium ion battery is the most promising store energy and conversion equipment, and its application is very extensive, such as being used in portable type electronic product, and electric motor car, hybrid electric vehicle and be energy storage device of regenerative resource or the like.And in the lithium ion battery, its positive electrode is a most important components, researches and develops the key point that high performance positive electrode has become the lithium ion battery development.
At present, business-like positive electrode mainly still is a lithium and cobalt oxides.But, cobalt resource shortage, cost height, toxicity height, fail safe is relatively poor, and it will inevitably be restricted in using future.In addition, lithium manganese oxide anode material aboundresources, cost are low, but its cycle performance is lower, stability of material is relatively poor under the high temperature, and its application is restricted.In recent years since the olivine-type LiFePO4 to have toxicity low, good cycling stability, advantage such as the low and fail safe of cost is good is considered to most possibly substitute present business-like positive electrode.In recent decades, people are to lithium vanadate (LiV 3O 8) positive electrode research is a lot, because it has lot of advantages, such as high theoretical capacity, cost is lower, conductivity that fail safe is good and high or the like is a kind of desirable energy storage anode material for lithium-ion batteries.In addition, China's navajoite resource is very abundant, particularly in the Panzhihua Region of China, contains a large amount of vanadium in the iron ore slag after the ironmaking, the necessary comprehensive utilization of carrying out vanadium resource.
The chemical property of lithium vanadate positive electrode and its preparation method or synthesis condition is closely related.At present, the synthetic method of lithium vanadate positive electrode is more, comprises solid phase method, low-temperature solid-phase method, hydro thermal method, sol-gal process, rheology phase method, spray drying process, firing method, freeze-drying, ultrasonic method and magnetron sputtering method or the like.The lithium vanadate differences in materials that distinct methods is waited until is very big, such as microstructure, particle size distribution, crystallinity and purity etc.Though solid phase method is simple to operate, the product primary particle size is bigger, and capacity is lower; Gel molecular is less in the sol-gel process, and raw material mixes fully, and the products obtained therefrom quality is higher, but the system gel process is too loaded down with trivial details; Though hydro thermal method can much be had the material of special appearance, is not suitable for large-scale industrial production.And other synthetic method is had relatively high expectations such as firing method, freeze-drying and magnetron sputtering rule synthesis condition, can increase cost.
Summary of the invention
The invention provides a kind of three-dimensional porous lithium vanadate positive electrode and preparation method thereof, this three-dimensional porous lithium vanadate positive electrode electrochemical reaction is active high, and this preparation method's technology is simple, handling safety, be convenient to suitability for industrialized production, the product quality height that obtains can be used for lithium ion battery.
A kind of three-dimensional porous lithium vanadate positive electrode is by LiV 3O 8And Li 0.3V 2O 5Two phase compositions, the mass ratio of two-phase are LiV 3O 8: Li 0.3V 2O 5=(2.12～2.80): 1; Have three-dimensional porous structure, primary particle is a sheet, and length is 100～1000nm, and width is 50～600nm, and thickness is 10～80nm, and second particle is a cubic, and size dimension is 20～40 μ m, and pore size distribution range is 20～100nm.
The preparation method of described three-dimensional porous lithium vanadate positive electrode may further comprise the steps:
(1) be NH by mass ratio 4VO 3: LiOHH 2O: glycine: deionized water=2.06: 15.89: (3～7): 50 take by weighing a certain amount of NH respectively 4VO 3, LiOHH 2Mix behind O, glycine and the deionized water, the mixed solution that obtains room temperature magnetic agitation 0.5～2 hour, is obtained white opacity solution;
(2) the white opacity solution of step (1) gained is placed 80～120 ℃ of dryings after, obtain precursor powder;
(3) under 300～550 ℃, air atmosphere, the precursor powder of sintering step (2) gained 5～10 hours obtains three-dimensional porous lithium vanadate positive electrode.
Three-dimensional porous lithium vanadate positive electrode of the present invention can be used for lithium ion cell positive.
Adopt three-dimensional porous lithium vanadate positive electrode of the present invention to make electrode slice, and assembling obtains lithium ion battery as lithium ion cell positive and battery cathode sheet with it, its process can be with reference to following description:
S' 91: 6: 3 mixed with three-dimensional porous lithium vanadate positive electrode of the present invention and adhesive polyvinylidene fluoride (PVDF) and conductive black by mass ratio, add deionized water and stirring and become pasty state, evenly be coated in aluminium foil surface (pole piece), then pole piece dried 12 hours down at 85 ℃.After roll squeezer compacting, place vacuum drying oven in 90 ℃ of dryings 8 hours again pole piece, divide to cut into electrode slice, can be used as the positive plate of lithium ion battery.
The electrode slice of making is assembled into lithium ion battery as lithium ion cell positive and battery cathode sheet lithium metal.Electrolyte is to contain 1mol/L LiPF 6DEC+EC (volume ratio DEC: EC=7: 3), DEC is a diethyl carbonate, and EC is an ethylene carbonate, barrier film polypropylene Celgard2300.The lithium ion battery assembling process is finished in relative humidity is lower than 1% dry glove box.
The lithium ion battery that above-mentioned assembling is obtained carries out performance test: the constant current charge-discharge test is carried out in the above-mentioned lithium ion battery placement that assembles after 12 hours, charging/discharging voltage is 2.0V～4.0V, measures the specific discharge capacity and the charge-discharge performance of lithium ion battery at 50mA/g with following circulation of 120mA/g charging and discharging currents density (density of charging current is identical with corresponding discharge current density) in 25 ℃ ± 2 ℃ environment.Test result shows: under the 50mA/g charging and discharging currents density, the first discharge specific capacity of lithium ion battery is 248～265mAh/g; Under the 120mA/g charging and discharging currents density, the first discharge specific capacity of lithium ion battery is 218～237mAh/g.50 circulation back capacity still can remain on more than 82% under the current density of 50mA/g.As seen, the charge/discharge capacity height of the lithium ion battery that above-mentioned assembling obtains, good cycling stability.
Compared with prior art, the present invention has following beneficial technical effects:
1, three-dimensional porous lithium vanadate positive electrode of the present invention is not easy to reunite, the tap density height, being used for lithium ion battery porous lithium vanadate particle can contact better with electrolyte, and electrochemical reaction is active high, help the raising of discharge capacity, can improve the processing performance of lithium ion battery.
2, in the three-dimensional porous lithium vanadate method for preparing anode material of the present invention, be forming agent, adopt simple solwution method to prepare presoma, and the one-step method low temperature calcination obtain three-dimensional porous lithium vanadate positive electrode with the glycine.Preparation method of the present invention is simple, and synthesis condition is easy, and technological operation is simple, is suitable for large-scale production.
3, three-dimensional porous lithium vanadate positive electrode of the present invention is used for the battery of lithium ion cell positive assembling, its charge/discharge capacity height, and good cycling stability is applicable to regenerative resource energy storage system.
Description of drawings
Fig. 1 is the XRD figure spectrum of the three-dimensional porous lithium vanadate positive electrode of embodiment 1 preparation.
Fig. 2 a～2c is that the three-dimensional porous lithium vanadate positive electrode of embodiment 1 preparation is at the SEM of different amplification photo.
Fig. 3 is the TEM photo of the three-dimensional porous lithium vanadate positive electrode of embodiment 1 preparation.
The electrode slice that Fig. 4 makes for the three-dimensional porous lithium vanadate positive electrode that adopts embodiment 1 preparation is assembled the charging and discharging curve of the lithium ion battery that obtains as lithium ion cell positive and battery cathode sheet.
The electrode slice that Fig. 5 makes for the three-dimensional porous lithium vanadate positive electrode that adopts embodiment 1 preparation is assembled the cycle performance of the lithium ion battery that obtains as lithium ion cell positive and battery cathode sheet.
Embodiment
Describe the present invention in detail below in conjunction with embodiment and accompanying drawing, but the present invention is not limited to this.
Embodiment 1:
(1) be NH by mass ratio 4VO 3: LiOHH 2O: glycine: deionized water=2.06: 15.89: 5: 50 take by weighing the material N H of required proportioning respectively 4VO 3, LiOHH 2O, glycine and deionized water mix it then, again with the mixed solution that obtains room temperature magnetic agitation 1 hour, obtain white opacity solution;
(2) directly place 90 ℃ of baking ovens to dry above-mentioned white opacity solution, obtain the black precursor powder;
(3) under 400 ℃, air atmosphere, sintered precursor powder 6 hours obtains the three-dimensional porous lithium vanadate positive electrode of end product.
The above-mentioned end product that obtains is carried out composition analysis and structural characterization, and the result is as follows:
The XRD figure spectrum of resulting end product as shown in Figure 1.Among Fig. 1, triangle is represented experiment value, and straight line is represented calculated value, and dotted line is represented the difference of calculated value and experiment value, and experiment value and calculated value overlap better here, and their difference is less, and result of calculation is better.The black square is represented Li 0.3V 2O 5Diffraction maximum, other indicate the indices of crystallographic plane for LiV 3O 8Diffraction maximum, visible resulting end product is LiV 3O 8And Li 0.3V 2O 5Two-phase, the mass ratio that calculates two-phase is LiV 3O 8: Li 0.3V 2O 5=2.70: 1.
The SEM picture of resulting end product is shown in Fig. 2 a, Fig. 2 b and Fig. 2 c, and Fig. 2 a is the low power SEM pattern of product, and Fig. 2 b is the amplification SEM pattern in the white circle part among Fig. 2 a, and Fig. 2 c is the amplification SEM pattern in the white circle part among Fig. 2 b.The TEM picture of resulting end product as shown in Figure 3.By above-mentioned SEM and TEM picture, as seen: the end product of gained is a three-dimensional porous structure, and primary particle is a sheet, tem observation shown in arrow among Fig. 2 c and among Fig. 3, and its length is 100～800nm, and width is 50～500nm, and thickness is 10～70nm; Second particle is a cubic, and shown in arrow among Fig. 2 a, its size dimension is 20～30 μ m, and recording pore size distribution range by the granularmetric analysis method is 20～80nm, and mean pore size is 40nm.
Adopt above-mentioned three-dimensional porous lithium vanadate positive electrode to make electrode slice, and it is obtained lithium ion battery as lithium ion cell positive and battery cathode sheet assembling, its process is as follows:
S' 91: 6: 3 mixed with above-mentioned three-dimensional porous lithium vanadate positive electrode and adhesive polyvinylidene fluoride (PVDF) and conductive black by mass ratio, add deionized water and stirring and become pasty state, evenly be coated in aluminium foil surface (pole piece), then pole piece dried 12 hours down at 85 ℃.After roll squeezer compacting, place vacuum drying oven in 90 ℃ of dryings 8 hours again pole piece, divide to cut into electrode slice, can be used as the positive plate of lithium ion battery.
The electrode slice of making is assembled into lithium ion battery as lithium ion cell positive and battery cathode sheet lithium metal.Electrolyte is to contain 1mol/L LiPF 6DEC+EC (volume ratio DEC: EC=7: 3), DEC is a diethyl carbonate, and EC is an ethylene carbonate, barrier film polypropylene Celgard2300.Above-mentioned lithium ion battery assembling process is finished in relative humidity is lower than 1% dry glove box.
The lithium ion battery that above-mentioned assembling is obtained carries out following performance test:
The constant current charge-discharge test is carried out in the above-mentioned lithium ion battery placement that assembles after 12 hours, charging/discharging voltage is 2.0V～4.0V, measures the specific discharge capacity and the charge-discharge performance of lithium ion battery at 50mA/g with following circulation of 120mA/g charging and discharging currents density (density of charging current is identical with corresponding discharge current density) in 25 ℃ ± 2 ℃ environment.
Test result is shown in Figure 4 and 5, and two curves are respectively charging and the discharge curve of sample under 50mA/g among Fig. 4, and mainly between 2.67～2.89V, discharge platform is mainly between 2.53～2.86V for the charging platform voltage range of sample.Two curves are respectively the cycle performance of sample under 50mA/g and 120mA/g among Fig. 5.From Figure 4 and 5 as seen: the first discharge specific capacity of lithium ion battery is 265mAh/g under the charging and discharging currents density of 50mA/g, and 50 circulation back capacity still can remain on more than 82%; The first discharge specific capacity of lithium ion battery is 237mAh/g under the 120mA/g charging and discharging currents density, and 100 times the circulation back is 173mAh/g.As seen, the charge/discharge capacity height of above-mentioned lithium ion battery, good cycling stability.
Embodiment 2:
(1) be NH by mass ratio 4VO 3: LiOHH 2O: glycine: deionized water=2.06: 15.89: 3: 50 take by weighing the material N H of required proportioning respectively 4VO 3, LiOHH 2O, glycine and deionized water mix it then, again with the mixed solution that obtains room temperature magnetic agitation 1 hour, obtain white opacity solution;
(2) directly place 90 ℃ of baking ovens to dry above-mentioned white opacity solution, obtain the black precursor powder;
(3) under 350 ℃, air atmosphere, sintered precursor powder 6 hours obtains the three-dimensional porous lithium vanadate positive electrode of end product.
The above-mentioned end product that obtains is carried out composition analysis and structural characterization, and the result is as follows:
Resulting end product is indicated as LiV through XRD analysis 3O 8And Li 0.3V 2O 5Two-phase, the mass ratio of two-phase are LiV 3O 8: Li 0.3V 2O 5=2.12: 1.
Observe the SEM picture, find: the end product of gained is a three-dimensional porous structure, primary particle is a sheet, length is 100～800nm, and width is 50～550nm, and thickness is 10～75nm, second particle is a cubic, size dimension is 20～35 μ m, and recording pore size distribution range by the granularmetric analysis method is 20～70nm, and mean pore size is 30nm.
Adopt above-mentioned three-dimensional porous lithium vanadate positive electrode to make electrode slice, and it is obtained lithium ion battery as lithium ion cell positive and battery cathode sheet assembling, its process is as follows:
S' 91: 6: 3 mixed with above-mentioned three-dimensional porous lithium vanadate positive electrode and adhesive polyvinylidene fluoride (PVDF) and conductive black by mass ratio, add deionized water and stirring and become pasty state, evenly be coated in aluminium foil surface (pole piece), then pole piece dried 12 hours down at 85 ℃.After roll squeezer compacting, place vacuum drying oven in 90 ℃ of dryings 8 hours again pole piece, divide to cut into electrode slice, can be used as the positive plate of lithium ion battery.
The electrode slice of making is assembled into lithium ion battery as lithium ion cell positive and battery cathode sheet lithium metal.Electrolyte is to contain 1mol/L LiPF 6DEC+EC (volume ratio DEC: EC=7: 3), DEC is a diethyl carbonate, and EC is an ethylene carbonate, barrier film polypropylene Celgard2300.Above-mentioned lithium ion battery assembling process is finished in relative humidity is lower than 1% dry glove box.
The lithium ion battery that above-mentioned assembling is obtained carries out following performance test:
The constant current charge-discharge test is carried out in the above-mentioned lithium ion battery placement that assembles after 12 hours, charging/discharging voltage is 2.0V～4.0V, measures the specific discharge capacity and the charge-discharge performance of lithium ion battery at 50mA/g with following circulation of 120mA/g charging and discharging currents density (density of charging current is identical with corresponding discharge current density) in 25 ℃ ± 2 ℃ environment.
Test result shows: the first discharge specific capacity of lithium ion battery is 248mAh/g under the charging and discharging currents density of 50mA/g, and 50 circulation back capacity still can remain on more than 82%; The first discharge specific capacity of lithium ion battery is 218mAh/g under the 120mA/g charging and discharging currents density.
Embodiment 3:
(1) be NH by mass ratio 4VO 3: LiOHH 2O: glycine: deionized water=2.06: 15.89: 7: 50 take by weighing the material N H of required proportioning respectively 4VO 3, LiOHH 2O, glycine and deionized water mix it then, again with the mixed solution that obtains room temperature magnetic agitation 1 hour, obtain white opacity solution;
(2) directly place 90 ℃ of baking ovens to dry above-mentioned white opacity solution, obtain the black precursor powder;
(3) under 450 ℃, air atmosphere, sintered precursor powder 6 hours obtains the three-dimensional porous lithium vanadate positive electrode of end product.
The above-mentioned end product that obtains is carried out composition analysis and structural characterization, and the result is as follows:
Resulting end product is indicated as LiV through XRD analysis (shown in Figure 1) 3O 8And Li 0.3V 2O 5Two-phase, the mass ratio of two-phase are LiV 3O 8: Li 0.3V 2O 5=2.80: 1.
Observe the SEM picture, find: the end product of gained is a three-dimensional porous structure, primary particle is a sheet, length is 100～1000nm, and width is 50～600nm, and thickness is 10～80nm, second particle is a cubic, size dimension is 20～40 μ m, and recording pore size distribution range by the granularmetric analysis method is 20～100nm, and mean pore size is 50nm.
Adopt above-mentioned three-dimensional porous lithium vanadate positive electrode to make electrode slice, and it is obtained lithium ion battery as lithium ion cell positive and battery cathode sheet assembling, its process is as follows:
S' 91: 6: 3 mixed with above-mentioned three-dimensional porous lithium vanadate positive electrode and adhesive polyvinylidene fluoride (PVDF) and conductive black by mass ratio, add deionized water and stirring and become pasty state, evenly be coated in aluminium foil surface (pole piece), then pole piece dried 12 hours down at 85 ℃.After roll squeezer compacting, place vacuum drying oven in 90 ℃ of dryings 8 hours again pole piece, divide to cut into electrode slice, can be used as the positive plate of lithium ion battery.
The electrode slice of making is assembled into lithium ion battery as lithium ion cell positive and battery cathode sheet lithium metal.Electrolyte is to contain 1mol/L LiPF 6DEC+EC (volume ratio DEC: EC=7: 3), DEC is a diethyl carbonate, and EC is an ethylene carbonate, barrier film polypropylene Celgard2300.Above-mentioned lithium ion battery assembling process is finished in relative humidity is lower than 1% dry glove box.
The lithium ion battery that above-mentioned assembling is obtained carries out following performance test:
The constant current charge-discharge test is carried out in the above-mentioned lithium ion battery placement that assembles after 12 hours, charging/discharging voltage is 2.0V～4.0V, measures the specific discharge capacity and the charge-discharge performance of lithium ion battery at 50mA/g with following circulation of 120mA/g charging and discharging currents density (density of charging current is identical with corresponding discharge current density) in 25 ℃ ± 2 ℃ environment.
Test result shows: the first discharge specific capacity of lithium ion battery is 251mAh/g under the charging and discharging currents density of 50mA/g, and 50 circulation back capacity still can remain on more than 82%; The first discharge specific capacity of lithium ion battery is 221mAh/g under the 120mA/g charging and discharging currents density.

Claims (2)

1. a three-dimensional porous lithium vanadate positive electrode is characterized in that, by LiV 3O 8And Li 0.3V 2O 5Two phase compositions, the mass ratio of two-phase are LiV 3O 8: Li 0.3V 2O 5=(2.12～2.80): 1; Have three-dimensional porous structure, primary particle is a sheet, and length is 100～1000nm, and width is 50～600nm, and thickness is 10～80nm, and second particle is a cubic, and size dimension is 20～40 μ m, and pore size distribution range is 20～100nm.
2. the preparation method of three-dimensional porous lithium vanadate positive electrode as claimed in claim 1 is characterized in that, may further comprise the steps:
(1) be NH by mass ratio 4VO 3: LiOHH 2O: glycine: deionized water=2.06: 15.89: (3～7): 50 take by weighing a certain amount of NH respectively 4VO 3, LiOHH 2Mix behind O, glycine and the deionized water, the mixed solution that obtains room temperature magnetic agitation 0.5～2 hour, is obtained white opacity solution;
(2) the white opacity solution of step (1) gained is placed 80～120 ℃ of dryings after, obtain precursor powder;
(3) under 300～550 ℃, air atmosphere, the precursor powder of sintering step (2) gained 5～10 hours obtains three-dimensional porous lithium vanadate positive electrode.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103811740A (en) * 2014-02-18 2014-05-21 中南大学 LixV2O5/LiV3O8 lithium-embedded material with core-shell structure and preparation method thereof
CN106941188A (en) * 2017-05-03 2017-07-11 厦门大学 One kind can discharge and recharge aluminium ion battery and its preparation technology
CN107464924A (en) * 2017-07-24 2017-12-12 江苏大学 A kind of sheet oxygen defect lithium vanadate anode material and preparation method thereof
CN109841824A (en) * 2019-03-22 2019-06-04 中南大学 Lanthanum orthophosphate embedded type intersperses formula cladding lithium vanadate composite positive pole and preparation method
CN110759381A (en) * 2019-11-05 2020-02-07 北华航天工业学院 Preparation method of coral-shaped lithium vanadate nano material
CN110776007A (en) * 2019-11-05 2020-02-11 北华航天工业学院 Preparation method of ping-pong chrysanthemum-shaped lithium vanadate material
CN114156451A (en) * 2021-11-30 2022-03-08 安徽师范大学 Carbon cloth composite material with surface growing three-dimensional structure zinc pyrovanadate nanosheets, preparation method of carbon cloth composite material and rechargeable battery

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0397608A2 (en) * 1989-05-12 1990-11-14 Consiglio Nazionale Delle Ricerche High energy and high power lithium batteries, and method for producing the same
US6136476A (en) * 1999-01-29 2000-10-24 Hydro-Quebec Corporation Methods for making lithium vanadium oxide electrode materials
CN1453890A (en) * 2003-04-28 2003-11-05 振华集团深圳电子有限公司 Composite polycrystal oxide and its synthesis

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0397608A2 (en) * 1989-05-12 1990-11-14 Consiglio Nazionale Delle Ricerche High energy and high power lithium batteries, and method for producing the same
US6136476A (en) * 1999-01-29 2000-10-24 Hydro-Quebec Corporation Methods for making lithium vanadium oxide electrode materials
CN1453890A (en) * 2003-04-28 2003-11-05 振华集团深圳电子有限公司 Composite polycrystal oxide and its synthesis

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A.SAKUNTHALA等: "Preparation, Characterization, and Electrochemical Performance of Lithium Trivanadate Rods by a Surfactant-Assisted Polymer Precursor Method for Lithium Batteries", 《JOURNAL OF PHYSICAL CHEMISTRY C》 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103811740A (en) * 2014-02-18 2014-05-21 中南大学 LixV2O5/LiV3O8 lithium-embedded material with core-shell structure and preparation method thereof
CN103811740B (en) * 2014-02-18 2015-09-23 中南大学 A kind of nucleocapsid structure Li xv 2o 5/ LiV 3o 8intercalation materials of li ions and preparation method thereof
CN106941188A (en) * 2017-05-03 2017-07-11 厦门大学 One kind can discharge and recharge aluminium ion battery and its preparation technology
CN107464924A (en) * 2017-07-24 2017-12-12 江苏大学 A kind of sheet oxygen defect lithium vanadate anode material and preparation method thereof
CN107464924B (en) * 2017-07-24 2020-06-09 江苏大学 Sheet-shaped oxygen defect lithium vanadate cathode material and preparation method thereof
CN109841824A (en) * 2019-03-22 2019-06-04 中南大学 Lanthanum orthophosphate embedded type intersperses formula cladding lithium vanadate composite positive pole and preparation method
CN110759381A (en) * 2019-11-05 2020-02-07 北华航天工业学院 Preparation method of coral-shaped lithium vanadate nano material
CN110776007A (en) * 2019-11-05 2020-02-11 北华航天工业学院 Preparation method of ping-pong chrysanthemum-shaped lithium vanadate material
CN110759381B (en) * 2019-11-05 2021-11-19 北华航天工业学院 Preparation method of coral-shaped lithium vanadate nano material
CN110776007B (en) * 2019-11-05 2021-11-19 北华航天工业学院 Preparation method of ping-pong chrysanthemum-shaped lithium vanadate material
CN114156451A (en) * 2021-11-30 2022-03-08 安徽师范大学 Carbon cloth composite material with surface growing three-dimensional structure zinc pyrovanadate nanosheets, preparation method of carbon cloth composite material and rechargeable battery
CN114156451B (en) * 2021-11-30 2023-11-03 安徽师范大学 Carbon cloth composite material with three-dimensional structure zinc pyrovanadate nanosheets grown on surface, preparation method of carbon cloth composite material and rechargeable battery

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