title: Hydrothermal synthesis and electrochemical properties of Li₃V₂(PO₄)₃/C-based composites for lithium-ion batteries.
abstract: To improve performance at higher rates, we developed a hydrothermal method to prepare carbon-coated monoclinic lithium vanadium phosphate (Li(3)V(2)(PO(4))(3)) powder to be used as a cathode material for Li-ion batteries. The structural, morphological and electrochemical properties were characterized by X-ray diffraction (XRD), scanning and transmission electron microscopy (SEM and TEM), and galvanostatic charge-discharge cycling. A superior cycle and rate behavior are demonstrated for Li(3)V(1.85)Sc(0.15)(PO(4))(3)/C and Li(2.96)Ca(0.02)V(2)(PO(4))(3)/C electrodes at charge-discharge current rates above 5C.
authors.affiliation: Texas Materials Institute, ETC 9.184, The University of Texas at Austin, Austin, Texas 78712, United States.
authors.forename: Chunwen
authors.initials: C
authors.lastname: Sun
authors.forename: Shreyas
authors.initials: S
authors.lastname: Rajasekhara
authors.forename: Youzhong
authors.initials: Y
authors.lastname: Dong
authors.forename: John B
authors.initials: JB
authors.lastname: Goodenough
mesh_terms: D002244:Carbon / Q000737:chemistry; D011211:Electric Power Supplies; D055664:Electrochemical Techniques; D004566:Electrodes; D007477:Ions / Q000737:chemistry; D008094:Lithium / Q000737:chemistry*; D017348:Microscopy, Electron, Scanning Transmission; D013696:Temperature; D014961:X-Ray Diffraction
chemical_list: D007477:Ions; D002244:Carbon; D008094:Lithium