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期刊论文
Synthesis and electrochemical characteristics of Li-Ni vanadates as positive materials
International Journal of Inorganic Materials 3(2001)381-385,-0001,():
An electrochemically active lithium–nickel vanadate phase of LiNiVO containing VO tetrahedrons has been synthesized by soft chemical method through a new mild liquid route at 450℃ for 3h in air. The products were characterized by X-ray diffraction, thermal analysis, SEM, IR and Raman spectra, respectively. The cells using lithium-nickel vanadate as a cathode can be cycled between 4.8 and 3.0V (vs. Li) at current density of 0.2mA/cm2. The results indicated that the low-temperature specimen prepared by liquid route exhibited better electrochemical properties than the high-temperature specimen obtained by solid-state reaction.
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