189 research outputs found
Electrochemical and lithium-ion transport properties of layered Li-rich Li1.10(Ni0.32X0.01Co0.33Mn0.33)O2(X = Dy/Gd/Ho) positive electrodes
Layer structured Li1.10(Ni0.32X0.01Co0.33Mn0.33)O2 (X = Dy/Gd/Ho) compounds were synthesized via the microwave assisted solvothermal route. The impacts of doping on the electrical and electrochemical properties of Li1.10 (Ni0.32X0.01Co0.33Mn0.33)O2 compounds were investigated. Rietveld refined XRD pattern showed Li1.10 (Ni0.32X0.01Co0.33Mn0.33)O2 compounds with layered hexagonal structure. SEM images revealed the compounds with micrometer sized grains. The Li1.10 (Ni0.33Co0.33Mn0.33)O2 compound delivered an initial discharge capacity of 197 mAh/g at 0.2C and retained a capacity of 163mAh/g after 50th cycle in the voltage window of 2.5-4.6V. The cycling stability of Li1.10(Ni0.33Co0.33Mn0.33)O2 compound was improved with rare earth doping. Li1.10(Ni0.32Dy0.01Co0.33Mn0.33)O2 compound delivered the discharge capacity of 166 mAh/g after50th cycle in the potential window 2.5-4.6V at 0.2C with 100% capacity retention. AC impedance studies displayed the electrical conductivity in the order of 10-6 S/cm. Wagner polarization analysis revealed the improvement in electronic transference number via rare earth doping
ICMAT 2005-IUMRS-ICAM 2005 covered frontiers of materials science, engineering, and technology
MRS Bulletin3011877-881MRSB
Solid State Ionics: Preface
10.1016/S0167-2738(02)00126-1Solid State Ionics1483-4239-240SSIO
Preparation and characterization of rf-sputtered thin films of Li2O-P2O5-Nb2O5 glasses
Solid State Ionics443-4325-329SSIO
Ionic transport studies of lithium phosphoarsenate glassy system
Solid State Ionics28-30PART 1747-751SSIO
Thin film studies on Li2O·P2O5·Nb2O 5 based fast ion conducting glasses
Solid State Ionics40-41PART 2680-683SSIO
Ionic conductivity studies of the vitreous Li2O:P2O5:Ta2O5 system
Journal of Non-Crystalline Solids1083323-332JNCS
The influence of Bi2O3 on yLi2O · (1 - y){xBi2O3(1 - x)B2O3} glass system
10.1016/0167-2738(96)00188-9Solid State Ionics86-88PART 1527-533SSIO
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