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Citation: LIU Yong-Mei, GUO Yong-Lang. Different Reactant Dispersion on the Electrochemical Performance of Li_1+xV₃O₈[J]. Chinese Journal of Applied Chemistry, ;2009, 26(10): 1236-1240. shu

Different Reactant Dispersion on the Electrochemical Performance of Li_1+xV₃O₈

LIU Yong-Mei ,
GUO Yong-Lang ^,

1.
College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108

Corresponding author: GUO Yong-Lang,
Received Date: 29 September 2008
Available Online: 16 March 2009

The anodic material of Li_1+xV₃O₈ was synthesized with Li₂CO₃ and NH₄VO₃ as the reactants under different conditions. The effects of the reactant dispersion and the calcining temperature on the structure,morphology and electrochemical properties of the products were investigated. XRD,IR and SEM experiments show that the sample synthesized at 550 ℃ from the precursor obtained with ultrasonically treating reactants in anhydrous ethanol has low crystallinity,small grain size and homogeneous morphology. And it has low polarization,more lithium insertion/extraction sites and good cyclability. Its discharge capacity reaches 268 mA·h/g in the 2nd cycle at a discharge rate of 0.5 C and still retains 210 mA·h/g after 100 cycles.
- Li-ion batteries,
- Li_1+xV₃O₈,
- ultrasonic dispersal,
- solid-state reaction
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Different Reactant Dispersion on the Electrochemical Performance of Li_1+xV₃O₈