CN104201363A - Carbon-coated Li3VO4 lithium ion battery anode material and preparation method thereof - Google Patents

Carbon-coated Li3VO4 lithium ion battery anode material and preparation method thereof Download PDF

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Publication number
CN104201363A
CN104201363A CN201410305710.5A CN201410305710A CN104201363A CN 104201363 A CN104201363 A CN 104201363A CN 201410305710 A CN201410305710 A CN 201410305710A CN 104201363 A CN104201363 A CN 104201363A
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coated
carbon
ion battery
lithium ion
li3vo4
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CN104201363B (en
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倪世兵
吕小虎
杨学林
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Chongqing Jiadingsheng Technology Co ltd
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China Three Gorges University CTGU
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/362Composites
    • H01M4/366Composites as layered products
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/48Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/485Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention provides a carbon-coated Li3VO4 lithium ion battery anode material. The anode material is prepared according to the following method: employing vanadium pentoxide, lithium carbonate and hexamethylene tetramine as raw materials, performing a hydrothermal reaction to obtain an intermediate-phase solution, then adding citric acid into the intermediate-phase solution, mixing uniformly, and drying to obtain a solid product, and sintering the solid product in a high-temperature atmosphere, so as to obtain the lithium ion battery anode material with the Li3VO4 surface coated by amorphous carbon. The anode material is granular, and has the particle size of 90-120 nm. The carbonization effect of citric acid is utilized for fining Li3VO4 particles and uniformly coating the particle size with a carbon layer. The synthetic technology simple and easy to operate, and the material preparation cost is low. The prepared sample Li3VO4 is a uniform nano-particle, and has the dimension of 90-120 nm. In the obtained sample, the Li3VO4 particle surface is uniformly coated by amorphous carbon. The prepared material is high in charge/discharge capacity and excellent in cycle performance.

Description

The coated Li of a kind of carbon 3vO 4lithium ion battery cathode material and its preparation method
Technical field
The present invention relates to a class new type lithium ion battery composite negative pole material, particularly the coated Li of a kind of carbon 3vO 4the technology of preparing of composite material and storage lithium characteristic thereof, belong to electrochemistry field of novel.
Background technology
Lithium ion battery has the advantages such as operating voltage is high, specific energy large, discharge potential curve is steady, self discharge is little, have extended cycle life, cryogenic property is good, memoryless, pollution-free, be widely used at present mobile communication equipment as in notebook computer and mobile phone, also had broad application prospects in as electric automobile and electric bicycle at following electric vehicle.A key factor that affects lithium ion battery development is research and development and the application of positive and negative electrode material.Li 3vO 4as a kind of Novel anode material, there is more high-volume and capacity ratio and better security performance than commercial graphite negative electrodes material, than Li 4ti 5o 12negative material has higher specific capacity, lower charge and discharge voltage, and current commercial positive electrode coupling is good, in lithium ion battery, has broad application prospects.There are some researches show, by Li 3vO 4can obviously improve its capacity and stable circulation performance with Graphene is compound, but Graphene cost is too high, is unfavorable for extensive preparation.In addition, by Li 3vO 4direct precipitation has also effectively improved its chemical property in nickel foam.Prepare the coated Li of carbon by straightforward procedure 3vO 4composite construction is expected to improve Li 3vO 4material electrochemical performance, for Li 3vO 4practical application in lithium ion battery also tool is of great significance.Up to the present, the coated Li of carbon 3vO 4the research of the preparation of composite construction and the application in lithium ion battery thereof there is not yet report.Based on above background, this patent is invented a kind of effective ways and is prepared the coated Li of carbon 3vO 4nano particle composite construction, with the coated Li of prepared carbon 3vO 4composite material has shown higher specific capacity and excellent cyclical stability as lithium ion battery negative.
Summary of the invention
Object of the present invention is exactly taking vanadic oxide, lithium carbonate, hexamethylenetetramine and citric acid as precursor, by hydro-thermal reaction and in conjunction with the coated Li of sintered at high temperature New Type of Carbon 3vO 4lithium ion battery composite material.Its principle is exactly first to utilize hydro-thermal reaction to prepare precursor solution, then introduces citric acid and fully stirs citric acid is mixed with precursor liquid, dries and utilize high-temperature heating that reaction energy is provided, and obtains the coated Li of carbon by solid phase reaction 3vO 4nano particle composite construction.
Li involved in the present invention 3vO 4synthesis material is vanadic oxide, lithium carbonate, hexamethylenetetramine and citric acid.In material preparation process, first by vanadic oxide, lithium carbonate and hexamethylenetetramine by molar ratio 1:3:5: take, be positioned over and in beaker, add appropriate distilled water and stir, be then positioned in hydrothermal reaction kettle and at 120 ~ 180 DEG C, react 12 ~ 48 hours.The solution that reaction is obtained is transferred in beaker and adds a certain amount of citric acid, after fully stirring, in baking oven, dries, and finally under condition of nitrogen gas, is heated at 500 ~ 600 DEG C sintering 2 ~ 10 hours, and the naturally cooling carbon that obtains is coated Li 3vO 4sample.
The coated Li of carbon involved in the present invention 3vO 4negative material and preparation method have following distinguishing feature:
(1) the present invention has utilized the carbonization refinement Li of citric acid 3vO 4particle is also evenly coated carbon-coating at particle surface.
(2) synthesis technique is simple, easy operating, and material preparation cost is low.
(3) Li in prepared sample 3vO 4for uniform nano particle, be of a size of 90 ~ 120 nm.
(4) in gained sample, amorphous carbon is evenly coated on Li 3vO 4particle surface.
(5) prepared material charge/discharge capacity is high, cycle performance excellence.
Brief description of the drawings
The XRD collection of illustrative plates of Fig. 1 embodiment 1 prepared sample.
The Raman collection of illustrative plates of Fig. 2 embodiment 1 prepared sample.
The SEM figure (a) of Fig. 3 embodiment 1 prepared sample and TEM figure (b).
The curve of charge and discharge first (a) of prepared sample and cycle performance figure (b) (current density 0.1 mA cm in Fig. 4 embodiment 1 -2).
The curve of charge and discharge first (a) of prepared sample and cycle performance figure (b) (current density 0.1 mA cm in Fig. 5 embodiment 2 -2).
The curve of charge and discharge first (a) of prepared sample and cycle performance figure (b) (current density 0.1 mA cm in Fig. 6 embodiment 3 -2).
Embodiment
Embodiment 1
Take 1mmol vanadic oxide, 3mmol lithium carbonate and 5mmol hexamethylenetetramine to beaker, adding appropriate distilled water stirs, be transferred in hydro-thermal axe and react 140 degree 24 hours, reaction gained solution is transferred in beaker and adds 0.05mmol citric acid, fully stir post-drying.Oven dry product is positioned in crucible, and crucible is moved in high temperature process furnances, at 550 DEG C, calcine 5 hours under condition of nitrogen gas, the naturally cooling carbon that can obtain is coated Li 3vO 4sample.Result shows, prepared sample, through XRD atlas analysis, is positioned at 16.3 o, 21.6 o, 22.9 o, 24.4 o, 28.2 o, 32.8 o, 36.3 o, 37.6 o, 49.8 o, 58.7 o, 66.2 owith 70.9 othe diffraction maximum at place corresponds respectively to rhombic system Li 3vO 4(100), (110) of (XRD card JCPDS, No. 38-1247), (011), (101), (111), (200), (002), (201), (202), (320), (203) and (322) crystal face.Prepared sample is through Raman analysis, is positioned at 1358 and 1601cm -1the peak at place derives from carbon.The coated Li of prepared carbon 3vO 4composite material characterizes through SEM and TEM, can be found out Li by Fig. 3 (a) 3vO 4for nano particle, average-size approximately 100 nm.Can be found out by Fig. 3 (b), carbon is evenly coated on Li 3vO 4nano grain surface.With the coated Li of prepared carbon 3vO 4nano particle shows that as lithium ion battery negative material charge and discharge capacity is 537 and 688 mAh/g first, and after 100 circulations, charge and discharge capacity is 562 and 565 mAh/g, has shown higher specific capacity and excellent stable circulation performance.
Embodiment 2
Take 1mmol vanadic oxide, 3mmol lithium carbonate and 5mmol hexamethylenetetramine to beaker, adding appropriate distilled water stirs, be transferred in hydro-thermal axe and react 140 degree 24 hours, reaction gained solution is transferred in beaker and adds 0.05mmol citric acid, fully stir post-drying.Oven dry product is positioned in crucible, and crucible is moved in high temperature process furnances, at 500 DEG C, calcine 5 hours under condition of nitrogen gas, the naturally cooling carbon that can obtain is coated Li 3vO 4sample.Result shows, with the coated Li of prepared carbon 3vO 4nano particle shows that as lithium ion battery negative material charge and discharge capacity is 355 and 445 mAh/g first, and after 100 circulations, charge and discharge capacity is 419 and 420 mAh/g, has shown higher specific capacity and good stable circulation performance.
Embodiment 3
Take 1mmol vanadic oxide, 3mmol lithium carbonate and 5mmol hexamethylenetetramine to beaker, adding appropriate distilled water stirs, be transferred in hydro-thermal axe and react 140 degree 24 hours, reaction gained solution is transferred in beaker and adds 0.05mmol citric acid, fully stir post-drying.Oven dry product is positioned in crucible, and crucible is moved in high temperature process furnances, at 600 DEG C, calcine 5 hours under condition of nitrogen gas, the naturally cooling carbon that can obtain is coated Li 3vO 4sample.Result shows, with the coated Li of prepared carbon 3vO 4nano particle shows that as lithium ion battery negative material charge and discharge capacity is 494 and 620 mAh/g first, and after 100 circulations, charge and discharge capacity is 496 and 498 mAh/g, has shown higher specific capacity and excellent stable circulation performance.

Claims (5)

1. the coated Li of carbon 3vO 4lithium ion battery negative material, is characterized in that: this negative material is taking vanadic oxide, lithium carbonate, hexamethylenetetramine and citric acid as basic material, the coated Li of carbon making 3vO 4lithium ion battery negative material, the particle diameter of this negative material is 90-120nm.
2. the coated Li of carbon according to claim 1 3vO 4lithium ion battery negative material, is characterized in that: the coated Li of described carbon 3vO 4lithium ion battery negative material is the coated Li of a kind of amorphous carbon 3vO 4lithium ion battery negative material, its carbon source is citric acid.
3. the coated Li of carbon 3vO 4the preparation method of lithium ion battery negative material, it is characterized in that: taking vanadic oxide, lithium carbonate and hexamethylenetetramine as raw material, phase solution in the middle of obtaining by hydro-thermal reaction, then in the middle of citric acid being joined, in phase solution, mix, oven dry obtains solid product, this solid product is made after high-temperature atmosphere sintering to the coated Li of carbon 3vO 4lithium ion battery negative material.
4. the coated Li of carbon according to claim 3 3vO 4the preparation method of lithium ion battery negative material, is characterized in that: described hydrothermal temperature is 120 ~ 180 DEG C, and the reaction time is 12 ~ 48 hours; Described solid-phase sintering atmosphere is nitrogen, and sintering temperature is 500 ~ 600 DEG C, sintering time 2 ~ 10 hours.
5. the coated Li of carbon according to claim 3 3vO 4the preparation method of lithium ion battery negative material, is characterized in that: the mol ratio of vanadic oxide, lithium carbonate, hexamethylenetetramine, citric acid is 1:3:5:1-4.
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104852054A (en) * 2015-04-13 2015-08-19 三峡大学 N-doped carbon-coated Li3VO4 lithium ion battery composite anode material and preparation method
CN104868119A (en) * 2015-04-16 2015-08-26 三峡大学 Binder-free Li3VO4/C lithium ion battery cathode material and preparation method thereof
CN105529450A (en) * 2016-03-02 2016-04-27 合肥国轩高科动力能源有限公司 Preparation method of lithium ion battery cathode material fluorine-doped lithium vanadate with stable circulation
CN105552358A (en) * 2016-02-03 2016-05-04 三峡大学 Preparation method of chromium-doped Li<3>VO<4>/C anode material for lithium-ion battery
CN105742591A (en) * 2016-03-02 2016-07-06 三峡大学 Carbon coated Na3VO4 composite anode material and preparation method and application thereof
CN105958029A (en) * 2016-06-24 2016-09-21 合肥国轩高科动力能源有限公司 Preparation method of lithium vanadate/carbon nanotube/carbon as lithium ion battery cathode composite material
CN106356510A (en) * 2016-10-13 2017-01-25 中南大学 Preparation method for Li-ion anode material FeVO4/C
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
CN107039637A (en) * 2016-02-03 2017-08-11 三峡大学 A kind of high-performance negative material Li3VO4/ C preparation method and the application on sodium-ion battery
CN107293722A (en) * 2017-07-10 2017-10-24 三峡大学 A kind of self-supporting NaVPO4F/C compound potassium ion battery plus plates and preparation method thereof
CN107482181A (en) * 2017-07-10 2017-12-15 三峡大学 A kind of anode material for compound lithium ion battery Li3V2(PO4)3/ C and preparation method thereof
CN107492656A (en) * 2017-07-10 2017-12-19 三峡大学 A kind of self-supporting NaVPO4F/C sodium ion anode composites and preparation method thereof
CN107845781A (en) * 2016-09-19 2018-03-27 微宏动力系统(湖州)有限公司 Lithium ion secondary battery cathode active material, its preparation method and lithium rechargeable battery
CN108666541A (en) * 2018-04-16 2018-10-16 华南理工大学 A kind of sol-gel method preparation carbon coating VOMoO4The method of lithium ion battery negative material
CN112018373A (en) * 2020-08-05 2020-12-01 嵊州市森拓新材料有限公司 Carbon-coated Li with shell-core structure3VO4Lithium ion battery cathode material and preparation method thereof
CN112281258A (en) * 2020-10-20 2021-01-29 三峡大学 Li3VO4Negative electrode material of/C fiber lithium ion battery and preparation method

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104852054A (en) * 2015-04-13 2015-08-19 三峡大学 N-doped carbon-coated Li3VO4 lithium ion battery composite anode material and preparation method
CN104868119A (en) * 2015-04-16 2015-08-26 三峡大学 Binder-free Li3VO4/C lithium ion battery cathode material and preparation method thereof
CN105552358A (en) * 2016-02-03 2016-05-04 三峡大学 Preparation method of chromium-doped Li<3>VO<4>/C anode material for lithium-ion battery
CN107039637A (en) * 2016-02-03 2017-08-11 三峡大学 A kind of high-performance negative material Li3VO4/ C preparation method and the application on sodium-ion battery
CN105529450A (en) * 2016-03-02 2016-04-27 合肥国轩高科动力能源有限公司 Preparation method of lithium ion battery cathode material fluorine-doped lithium vanadate with stable circulation
CN105742591A (en) * 2016-03-02 2016-07-06 三峡大学 Carbon coated Na3VO4 composite anode material and preparation method and application thereof
CN105958029A (en) * 2016-06-24 2016-09-21 合肥国轩高科动力能源有限公司 Preparation method of lithium vanadate/carbon nanotube/carbon as lithium ion battery cathode composite material
CN107845781A (en) * 2016-09-19 2018-03-27 微宏动力系统(湖州)有限公司 Lithium ion secondary battery cathode active material, its preparation method and lithium rechargeable battery
CN107845781B (en) * 2016-09-19 2022-01-18 微宏动力系统(湖州)有限公司 Negative electrode active material for lithium ion secondary battery, method for producing same, and lithium ion secondary battery
CN106356510A (en) * 2016-10-13 2017-01-25 中南大学 Preparation method for Li-ion anode material FeVO4/C
CN106356510B (en) * 2016-10-13 2019-06-04 中南大学 A kind of ion cathode material lithium FeVO4The preparation method of/C
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
CN107482181A (en) * 2017-07-10 2017-12-15 三峡大学 A kind of anode material for compound lithium ion battery Li3V2(PO4)3/ C and preparation method thereof
CN107492656A (en) * 2017-07-10 2017-12-19 三峡大学 A kind of self-supporting NaVPO4F/C sodium ion anode composites and preparation method thereof
CN107293722B (en) * 2017-07-10 2019-12-06 三峡大学 self-supporting NaVPO4F/C composite lithium ion battery anode and preparation method thereof
CN107482181B (en) * 2017-07-10 2019-12-06 三峡大学 Composite lithium ion battery anode material Li3V2(PO4)3/C and preparation method thereof
CN107492656B (en) * 2017-07-10 2019-12-06 三峡大学 Self-supporting NaVPO4F/C sodium ion composite anode and preparation method thereof
CN107293722A (en) * 2017-07-10 2017-10-24 三峡大学 A kind of self-supporting NaVPO4F/C compound potassium ion battery plus plates and preparation method thereof
CN108666541A (en) * 2018-04-16 2018-10-16 华南理工大学 A kind of sol-gel method preparation carbon coating VOMoO4The method of lithium ion battery negative material
CN108666541B (en) * 2018-04-16 2021-07-16 华南理工大学 Sol-gel method for preparing carbon-coated VOMoO4Method for preparing lithium ion battery cathode material
CN112018373A (en) * 2020-08-05 2020-12-01 嵊州市森拓新材料有限公司 Carbon-coated Li with shell-core structure3VO4Lithium ion battery cathode material and preparation method thereof
CN112281258A (en) * 2020-10-20 2021-01-29 三峡大学 Li3VO4Negative electrode material of/C fiber lithium ion battery and preparation method
CN112281258B (en) * 2020-10-20 2022-10-04 三峡大学 Li 3 VO 4 Negative electrode material of/C fiber lithium ion battery and preparation method

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