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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26488


    Title: Synthesis, characterization, and cell performance of LiNiVO4 cathode materials prepared by a new solution precipitation method
    Authors: Fey,GTK;Chen,KS
    Contributors: 化學工程與材料工程學系
    Keywords: LITHIUM CELLS;LIMN2O4;INTERCALATION;STOICHIOMETRY;TEMPERATURE
    Date: 1999
    Issue Date: 2010-06-29 17:29:13 (UTC+8)
    Publisher: 中央大學
    Abstract: LiNiVO4 was prepared by a new solution precipitation process using acetylacetonate as a reagent. The effects of pH value on the purity, grain size, lithium stoichiometry, and cycling behavior of LiNiVO4 were studied. Solution precipitation performed in an acidic medium of pH = 3 with heat-treatment at 450 degrees C for 12 h yielded pure and fine LiNiVO4 powders which showed lithium stoichiometry of 0.971 and narrow grain-size of 0.34 mu m. Under neutral and basic conditions, the LiNiVO4 particles were contaminated with NiO and formed aggregates with a larger grain size in the 0.36-0.54 mu m range. The resulting LiNiVO4 powders were characterized by TGA, XRD, ICP-AES, SEM, and AFM techniques. Moreover, the cycle behavior of LiNiVO4 products synthesized by a high temperature solid state method and this new solution precipitation method was compared and discussed. (C) 1999 Elsevier Science S.A. All rights reserved.
    Relation: JOURNAL OF POWER SOURCES
    Appears in Collections:[化學工程與材料工程研究所] 期刊論文

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