CN103236531A - Lithium ion battery zinc vanadate cathode material and preparation method thereof - Google Patents

Lithium ion battery zinc vanadate cathode material and preparation method thereof Download PDF

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Publication number
CN103236531A
CN103236531A CN2013101267585A CN201310126758A CN103236531A CN 103236531 A CN103236531 A CN 103236531A CN 2013101267585 A CN2013101267585 A CN 2013101267585A CN 201310126758 A CN201310126758 A CN 201310126758A CN 103236531 A CN103236531 A CN 103236531A
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acid zinc
lithium ion
ion battery
vanadic acid
prepared
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倪世兵
吕小虎
杨学林
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China Three Gorges University CTGU
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China Three Gorges University CTGU
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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 relates to a lithium ion battery cathode material containing zinc vanadate Zn3(VO4)2 and preparation method thereof, and a proper amount of Zinc pyrovanadate Zn3(OH)2V2O7.nH2O is placed into a heating container, and with the protection of air or nitrogen or argon, the zinc pyrovanadate is heated to 500-1000 DEG C in a tubular furnace or atmosphere furnace and is reacted for 1-20 hours, and the Zn3(VO4)2 sample is obtained after natural cooling. The Zn3(VO4)2 is in particle or sheet shape, and the granularity size is 350 nm-4 mm, and the first discharge capacity reaches to 1450-1650 mAh/g. The method has the advantages of simple synthesis technology, easy operation and low material preparation cost; the obtained sample has the advantages of high purity, controllable dimension, good crystallinity and good crystal form; the preparative material has a high discharge capacity.

Description

A kind of lithium ion battery vanadic acid zinc negative material and preparation method
Technical field
The present invention relates to a class new type lithium ion battery negative material, particularly a kind of vanadate Zn 3(VO 4) 2Technology of preparing and storage lithium characteristic thereof, belong to field of electrochemical power source.
Background technology
Lithium ion battery is the third generation small battery after nickel-cadmium cell, Ni-MH battery, have advantages such as operating voltage height, specific energy is big, the discharge potential curve is steady, self discharge is little, have extended cycle life, cryogenic property is good, memoryless, pollution-free, can satisfy portable type electronic product miniaturization, lightweight, free of contamination requirement.Lithium ion battery has been widely used in the electronic products such as mobile communication, notebook computer at present, but as the power supply as mobile devices such as electric vehicle, artificial satellite, field operations communications, also needs further to improve specific energy and the power of battery.The key of research and development high-energy-density, high power lithium ion cell is to design and prepare the electrode material of high power capacity, high rate capability.At present, positive electrode generally is to contain lithium transition group metallic oxide (LiCoO 2, LiFePO 4, LiN 1-y-zMn yCo zO zDeng), little in the possibility that existing positive electrode architecture basics increases substantially the positive electrode specific capacity, further improve the significantly raising that capacity of lithium ion battery can only rely on the negative material capacity.Traditional graphite cathode material theoretical capacity is lower, and research and development new type lithium ion battery negative material becomes a key factor that influences the lithium ion battery development.Vanadic acid zinc Zn 3(VO 4) 2Have special channel design, can be used as lithium ion and embed/take off the embedding carrier.We show early-stage Study, Zn 3(VO 4) 2Particle has shown 1640 mAhg as lithium ion battery negative material -1Discharge capacity first, far above the graphitic carbon material; In addition, its main discharge platform concentrates near the 0.12V, can provide bigger voltage range as lithium ion battery negative material.Zn 3(VO 4) 2Be expected to become a kind of novel high power, height ratio capacity lithium ion battery negative material.At present, about Zn 3(VO 4) 2Preparation research carry out lessly, the Zn of existing a small amount of liquid phase and solid phase synthesis process preparation 3(VO 4) 2Crystal property is bad, and its performance is had tangible influence, does not appear in the newspapers about the research of its chemical property.Therefore, a kind of vanadic acid zinc Zn with well-crystallized performance of invention 3(VO 4) 2The preparation method and study its chemical property as lithium ion battery negative material and have great importance.Based on above background, the application as precursor, prepares size uniform vanadic acid zinc Zn by the high temperature sintering method with pyrovanadic acid zinc 3(VO 4) 2And its chemical property as lithium ion battery negative material assessed.
Summary of the invention
Purpose of the present invention is exactly to be that precursor is prepared the good new type lithium ion battery negative material vanadic acid zinc Zn of crystal property with pyrovanadic acid zinc 3(VO 4) 2Its principle is utilized high temperature to be heated to be reaction raw materials exactly reaction energy is provided, and makes reaction raw materials that sintering take place gradually, by regulating temperature control sintering velocity, finally obtains the good vanadic acid zinc Zn of crystal property 3(VO 4) 2
Vanadic acid zinc Zn involved in the present invention 3(VO 4) 2Synthesis material is pyrovanadic acid zinc Zn 3(OH) 2V 2O 7NH 2O, the reaction that takes place in calcination process is:
Zn 3(OH) 2 V 2O 7·nH 2O → Zn 3(VO 4) 2 + (n+1) H 2O (1)
Pre-reaction material pyrovanadic acid zinc Zn used in the present invention 3(OH) 2V 2O 7NH 2O can pass through hydro-thermal reaction, is that feedstock production obtains with ammonium metavanadate or vanadic oxide, zinc nitrate, six methines, four ammonia.In the material preparation process, earlier with an amount of pyrovanadic acid zinc Zn 3(OH) 2V 2O 7NH 2O is placed in the heating container, is heated to 500 ~ 1000 degree reactions 1 ~ 20 hour under air or nitrogen or argon shield in tube furnace or atmosphere furnace, and natural cooling can obtain vanadic acid zinc Zn 3(VO 4) 2Sample.
The preparation method of vanadic acid zinc negative material involved in the present invention has following outstanding feature:
(1) synthesis technique is simple, easy operating, and the material preparation cost is low;
(2) gained sample purity height, controllable size, crystal property is good, good crystalline;
(3) method has universality, can be used for the synthetic of other vanadate;
(4) prepared material discharging capacity is higher, and discharge platform is low.
Description of drawings
Fig. 1 is prepared Zn through embodiment 1,2,3,4,5,6,7 3(VO 4) 2The XRD collection of illustrative plates.
Among Fig. 2 (a) (b) (c) (d) (e) (f) (g) be respectively embodiment 1,2,3,4,5,6,7 SEM figure.
Among Fig. 3 (a) (b) (c) (d) (e) (f) (g) be respectively embodiment 1,2,3,4,5,6,7 (the current density 0.05 mA cm of discharge curve first -2).
Embodiment
Embodiment 1. takes by weighing an amount of pyrovanadic acid zinc Zn 3(OH) 2V 2O 7NH 2O moves into crucible or quartz boat in high temperature process furnances or the atmosphere furnace, at 600 ℃, N to crucible or quartz boat 2Calcining is 5 hours under the environment, and the result shows that prepared sample is vanadic acid zinc Zn through the XRD atlas analysis 3(VO 4) 2, all diffraction maximum and the vanadic acid zinc (Zn of rhombic system among the figure 3(VO 4) 2) correspondence, lattice constant is a=0.8299 nm, b=1.152 nm, c=0.6111 nm is corresponding to XRD card JCPDS, No. 34-0378; Strong and sharp-pointed diffraction maximum shows that prepared vanadic acid zinc crystal property is good.Prepared Zn 3(VO 4) 2Through SEM scanning, by Fig. 2 (a) as can be seen, prepared Zn 3(VO 4) 2The particle average grain diameter is 400 nm.Drawn by Fig. 3 (a), with prepared Zn 3(VO 4) 2Particle shows that as lithium ion battery negative material discharge capacity is 1640 mAhg first -1
Embodiment 2. takes by weighing an amount of pyrovanadic acid zinc Zn 3(OH) 2V 2O 7NH 2O moves into crucible or quartz boat in high temperature process furnances or the atmosphere furnace, at 500 ℃, N to crucible or quartz boat 2Calcining is 10 hours under the environment, and the result shows that prepared sample is vanadic acid zinc Zn through the XRD atlas analysis 3(VO 4) 2, all diffraction maximum and the vanadic acid zinc (Zn of rhombic system among the figure 3(VO 4) 2) correspondence, lattice constant is a=0.8299 nm, b=1.152 nm, c=0.6111 nm is corresponding to XRD card JCPDS, No. 34-0378; Strong and sharp-pointed diffraction maximum shows that prepared vanadic acid zinc crystal property is good.Prepared Zn 3(VO 4) 2Through SEM scanning, by Fig. 2 (b) as can be seen, prepared Zn 3(VO 4) 2Be the sheet pattern, with predecessor Zn 3(OH) 2V 2O 7NH 2The O pattern is similar, and average-size is less than 3 mm, and thickness is less than 50 nm.Drawn by Fig. 3 (b), with prepared Zn 3(VO 4) 2Nanometer sheet shows that as lithium ion battery negative material discharge capacity is 1480 mAh g first -1
Embodiment 3. takes by weighing an amount of pyrovanadic acid zinc Zn 3(OH) 2V 2O 7NH 2O moves into crucible or quartz boat in high temperature process furnances or the atmosphere furnace, at 500 ℃, N to crucible or quartz boat 2Calcining is 20 hours under the environment, and the result shows that prepared sample is vanadic acid zinc Zn through the XRD atlas analysis 3(VO 4) 2, all diffraction maximum and the vanadic acid zinc (Zn of rhombic system among the figure 3(VO 4) 2) correspondence, lattice constant is a=0.8299 nm, b=1.152 nm, c=0.6111 nm is corresponding to XRD card JCPDS, No. 34-0378; Strong and sharp-pointed diffraction maximum shows that prepared vanadic acid zinc crystal property is good.Prepared Zn 3(VO 4) 2Through SEM scanning, by Fig. 2 (c) as can be seen, particle mean size is less than the sheet of 350 nm and particle.Drawn by Fig. 3 (c), with prepared Zn 3(VO 4) 2Nanometer sheet shows that as lithium ion battery negative material discharge capacity is 1492 mAh g first -1
Embodiment 4. takes by weighing an amount of pyrovanadic acid zinc Zn 3(OH) 2V 2O 7NH 2O moves into crucible or quartz boat in high temperature process furnances or the atmosphere furnace to crucible or quartz boat, and calcining is 5 hours under 600 ℃, Ar compression ring border, and the result shows that prepared sample is vanadic acid zinc Zn through the XRD atlas analysis 3(VO 4) 2, all diffraction maximum and the vanadic acid zinc (Zn of rhombic system among the figure 3(VO 4) 2) correspondence, lattice constant is a=0.8299 nm, b=1.152 nm, c=0.6111 nm is corresponding to XRD card JCPDS, No. 34-0378; Strong and sharp-pointed diffraction maximum shows that prepared vanadic acid zinc crystal property is good.Prepared Zn 3(VO 4) 2Through SEM scanning, by Fig. 2 (d) as can be seen, prepared Zn 3(VO 4) 2Be granule-morphology, average-size is less than 400 nm.Drawn by Fig. 3 (d), with prepared Zn 3(VO 4) 2Particle shows that as lithium ion battery negative material discharge capacity is 1628 mAh g first -1
Embodiment 5. takes by weighing an amount of pyrovanadic acid zinc Zn 3(OH) 2V 2O 7NH 2O moves into crucible or quartz boat in high temperature process furnances or the atmosphere furnace to crucible or quartz boat, and calcining is 5 hours under 600 ℃, air ambient, and the result shows that prepared sample is vanadic acid zinc Zn through the XRD atlas analysis 3(VO 4) 2, all diffraction maximum and the vanadic acid zinc (Zn of rhombic system among the figure 3(VO 4) 2) correspondence, lattice constant is a=0.8299 nm, b=1.152 nm, c=0.6111 nm is corresponding to XRD card JCPDS, No. 34-0378; Strong and sharp-pointed diffraction maximum shows that prepared vanadic acid zinc crystal property is good.Prepared Zn 3(VO 4) 2Through SEM scanning, by Fig. 2 (e) as can be seen, prepared Zn 3(VO 4) 2Be granule-morphology, average-size is less than 750 nm.Drawn by Fig. 3 (e), with prepared Zn 3(VO 4) 2Particle shows that as lithium ion battery negative material discharge capacity is 1542 mAh g first -1
Embodiment 6. takes by weighing an amount of pyrovanadic acid zinc Zn 3(OH) 2V 2O 7NH 2O moves into crucible or quartz boat in high temperature process furnances or the atmosphere furnace, at 800 ℃, N to crucible or quartz boat 2Calcining is 5 hours under the environment, and the result shows that prepared sample is vanadic acid zinc Zn through the XRD atlas analysis 3(VO 4) 2, all diffraction maximum and the vanadic acid zinc (Zn of rhombic system among the figure 3(VO 4) 2) correspondence, lattice constant is a=0.8299 nm, b=1.152 nm, c=0.6111 nm is corresponding to XRD card JCPDS, No. 34-0378; Strong and sharp-pointed diffraction maximum shows that prepared vanadic acid zinc crystal property is good.Prepared Zn 3(VO 4) 2Through SEM scanning, by Fig. 2 (f) as can be seen, prepared Zn 3(VO 4) 2Be granule-morphology, average-size is less than 1.2 mm.Drawn by Fig. 3 (f), with prepared Zn 3(VO 4) 2Particle shows that as lithium ion battery negative material discharge capacity is 1506 mAh g first -1
Embodiment 7. takes by weighing an amount of pyrovanadic acid zinc Zn 3(OH) 2V 2O 7NH 2O moves into crucible or quartz boat in high temperature process furnances or the atmosphere furnace to crucible or quartz boat, and calcining is 5 hours under 1000 ℃, air ambient, and the result shows that prepared sample is vanadic acid zinc Zn through the XRD atlas analysis 3(VO 4) 2, all diffraction maximum and the vanadic acid zinc (Zn of rhombic system among the figure 3(VO 4) 2) correspondence, lattice constant is a=0.8299 nm, b=1.152 nm, c=0.6111 nm is corresponding to XRD card JCPDS, No. 34-0378; Strong and sharp-pointed diffraction maximum shows that prepared vanadic acid zinc crystal property is good.Prepared Zn 3(VO 4) 2Through SEM scanning, by Fig. 2 (g) as can be seen, prepared Zn 3(VO 4) 2Be granule-morphology, average-size is less than 4 mm.Drawn by Fig. 3 (g), with prepared Zn 3(VO 4) 2Particle shows that as lithium ion battery negative material discharge capacity is 1485 mAh g first -1

Claims (6)

1. a lithium ion battery vanadic acid zinc negative material is characterized in that with pyrovanadic acid zinc be raw material, adopts the method for high temperature sintering to prepare vanadic acid zinc.
2. lithium ion battery vanadic acid zinc negative material according to claim 1 is characterized in that: under air conservation, and under the 500-1000 ℃ of condition sintering 1-20 hour.
3. lithium ion battery vanadic acid zinc negative material according to claim 1 is characterized in that: under nitrogen protection, and under the 500-1000 ℃ of condition sintering 1-20 hour.
4. lithium ion battery vanadic acid zinc negative material according to claim 1 is characterized in that: under argon shield, and under the 500-1000 ℃ of condition sintering 1-20 hour.
5. lithium ion battery vanadic acid zinc negative material according to claim 1 is characterized in that: Zn 3(VO 4) 2Be particle or sheet, granule size is 350-4 mm.
6. lithium ion battery vanadic acid zinc negative material according to claim 1 is characterized in that: Zn 3(VO 4) 2Discharge capacity is 1450-1650 mAhg first -1
CN2013101267585A 2013-04-12 2013-04-12 Lithium ion battery zinc vanadate cathode material and preparation method thereof Pending CN103236531A (en)

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CN103730642A (en) * 2014-01-24 2014-04-16 厦门大学 Negative electrode material of lithium ion battery and preparation method thereof
CN104393241A (en) * 2014-11-14 2015-03-04 三峡大学 Preparation method of lithium-ion battery negative electrode material
CN104409698A (en) * 2014-11-14 2015-03-11 三峡大学 Composite lithium ion battery anode material and preparation method thereof
CN104900906A (en) * 2015-06-09 2015-09-09 三峡大学 Vanadium-based compound Zn3V3O8, as well as preparation method and application of vanadium-based compound Zn3V3O8
CN104934585A (en) * 2015-06-10 2015-09-23 三峡大学 Vanadium-base compound Zn3V3O8 and preparation method and application thereof
CN106159248A (en) * 2015-04-28 2016-11-23 江南大学 A kind of preparation method of lithium ion battery Zinc vanadate nanofiber anode material
CN114420950A (en) * 2022-01-28 2022-04-29 齐鲁工业大学 ZIF-8 derived Zn3(VO4)2Electrocatalytic material, preparation method and application thereof
CN115536067A (en) * 2022-11-03 2022-12-30 南昌大学 Novel self-assembled vanadium strong hydrophobic material and preparation method thereof, and coating and preparation method thereof

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103730642A (en) * 2014-01-24 2014-04-16 厦门大学 Negative electrode material of lithium ion battery and preparation method thereof
CN104393241A (en) * 2014-11-14 2015-03-04 三峡大学 Preparation method of lithium-ion battery negative electrode material
CN104409698A (en) * 2014-11-14 2015-03-11 三峡大学 Composite lithium ion battery anode material and preparation method thereof
CN106159248A (en) * 2015-04-28 2016-11-23 江南大学 A kind of preparation method of lithium ion battery Zinc vanadate nanofiber anode material
CN104900906A (en) * 2015-06-09 2015-09-09 三峡大学 Vanadium-based compound Zn3V3O8, as well as preparation method and application of vanadium-based compound Zn3V3O8
CN104934585A (en) * 2015-06-10 2015-09-23 三峡大学 Vanadium-base compound Zn3V3O8 and preparation method and application thereof
CN104934585B (en) * 2015-06-10 2017-06-06 三峡大学 A kind of vanadium based compound Zn3V3O8And its preparation method and application
CN114420950A (en) * 2022-01-28 2022-04-29 齐鲁工业大学 ZIF-8 derived Zn3(VO4)2Electrocatalytic material, preparation method and application thereof
CN114420950B (en) * 2022-01-28 2023-08-29 齐鲁工业大学 ZIF-8 derived Zn 3 (VO 4 ) 2 Electrocatalytic material and preparation method and application thereof
CN115536067A (en) * 2022-11-03 2022-12-30 南昌大学 Novel self-assembled vanadium strong hydrophobic material and preparation method thereof, and coating and preparation method thereof
CN115536067B (en) * 2022-11-03 2023-10-03 南昌大学 Self-assembled vanadium-based strong hydrophobic material, preparation method thereof, coating and preparation method thereof

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Application publication date: 20130807