Synthesis of LiV3O8 nanocrystallites as cathode materials for lithium ion batteries

“…Sometimes, NH 4 VO 3 , instead of V 2 O 5 , was used to prepare LiV 3 O 8 [15]. In our previous work, in order to synthesize LiV 3 O 8 phase with good electrochemical performance, NH 4 VO 3 and LiOH were used as raw materials in the hydrothermal preparation.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical property of NH4V3O8·0.2H2O flakes prepared by surfactant assisted hydrothermal method

Wang

Huang

Liu

et al. 2011

Journal of Power Sources

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“…2. The patterns indicate highly crystalline pure phase products at all reaction temperatures with increasing crystallinity, as shown by increasing intensity and sharpening of the XRD peaks [2], as reaction temperature increases. The XRD patterns of MV3O8 ( Fig.…”

Section: Xrd Patternsmentioning

confidence: 86%

“…The layered main group trivanadates (MxV3O8) are of current interest due to potential applications in Li-ion batteries [1,2] and low-temperature magnetic devices [3]. Vanadium exhibits complex structural chemistry, associated with the different valence states (+3, +4, +5), coordination numbers, and geometries (tetrahedral, trigonal bipyramidal, square pyramidal, and octahedral) available to vanadium, that allows layers to be built up from different polyhedral connections and orientations.…”

Section: Introductionmentioning

confidence: 99%

Improved Synthesis of Alkali Metal Vanadates Using a Hydrothermal Method

Krachodnok¹,

Haller²,

Willaims³

2012

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Abstract. High product yield of highly crystalline layered MxV3O8 compounds was obtained under hydrothermal conditions from the V2O5-Zn(OAc)22H2O-alkali metal salt-H2O system at significantly lower reaction temperature than previously reported in neutral media for x = 1 and M = K + , Rb + , and Cs + , and in basic media for x = 2 and M = K + . Unreacted Zn(OAc)2 may act as a catalyst and/or HOAc/OAc -acts as a buffer in obtaining monopotassium salts while enMe used to adjust pH can also act as a reducing agent in producing the dipotassium salt. A new layered dipotassium zinc pyrovanadate compound, K2ZnV2O7, was formed when twice the stoichiometric ratio of the zinc salt was used. Single crystal X-ray diffraction shows the zinc compound to crystallize in the tetragonal space group P42/mnm (No. 136) with a = 8.3478(16) Å, c = 11.297(3) Å, V = 787.2(3) Å 3 , and thus to be isomorphous with K2MgV2O7. The pentagonal-motif layer structure of K2ZnV2O7 is similar to that of K2(VO)V2O7, but the unit cell parameters differ with approximate doubling of the c axial length when replacing the square-pyramidal VO5 units of the [(V 4+ O)(V 5+ 2O7)]n 2n-layer with distorted ZnO4 tetrahedra.

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“…The synthetic routes studied in literature include solid-state reaction [124], spray pyrolysis method [163], sol-gel process [126], hydrothermal synthesis [105,122], radio frequency magnetron sputtering [156,127], hydrothermal treatment [128], rheological phase reaction method [164] and microwave synthesis [165]. In order to enhance the electrochemical properties of the material synthesized by increasing surface porosity and lowering crystallinity, several techniques have been suggested such as ultrasonic treatment [166] and partial crystalline modification by introducing small amounts of H 2 O, CO 2 and NH 3 [167].…”

Section: Omentioning

confidence: 99%

Review on Synthesis, Characterizations, and Electrochemical Properties of Cathode Materials for Lithium Ion Batteries

Bensalah¹,

Dawood²

2016

J Material Sci Eng

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The development of cutting-edge cathode materials is a challenging research topic aiming to improve the energy and power densities of lithium ion batteries (LIB) to cover the increasing demands for energy storage devices. Therefore, highly needed further improvements in the performance characteristics of Li-ion batteries are largely dependent on our ability to develop novel materials with greatly improved Li ion storage capacities. Three different types of cathode materials including intercalation, alloying and conversion materials are reviewed in this paper in order to orientate our researches towards highly performant LIBs batteries. This includes characteristics of different cathode materials and approaches for improving their performances.

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Synthesis of LiV3O8 nanocrystallites as cathode materials for lithium ion batteries

Cited by 28 publications

References 24 publications

Electrochemical property of NH4V3O8·0.2H2O flakes prepared by surfactant assisted hydrothermal method

Electrochemical property of NH4V3O8·0.2H2O flakes prepared by surfactant assisted hydrothermal method

Improved Synthesis of Alkali Metal Vanadates Using a Hydrothermal Method

Review on Synthesis, Characterizations, and Electrochemical Properties of Cathode Materials for Lithium Ion Batteries

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