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    • 80. 发明授权
    • Synthesis of metal phosphates
    • 金属磷酸盐的合成
    • US07060238B2
    • 2006-06-13
    • US10794327
    • 2004-03-04
    • M. Yazid SaidiHaitao Huang
    • M. Yazid SaidiHaitao Huang
    • C01B25/45H01M4/58
    • H01M4/5825C01B25/45H01M10/052
    • The present invention relates to a method for preparing a metal phosphate which comprises milling in a carbonaceous vessel a lithium source, a phosphate source, such as LiH2PO4, and a metal oxide containing a metal ion wherein the metal ion is capable of being reduced, to produced a milled mixture and heating the milled mixture in an inert atmosphere at a temperature and for a time sufficient to form a metal phosphate wherein the metal ion of the metal oxide is reduced in oxidation state without the direct addition of a reducing agent to the starting materials. In another embodiment the present invention relates to a method for preparing a mixed metal phosphate which comprises milling a lithium source and a phosphate source, such as LiH2PO4, a metal oxide and another metal compound wherein at least one of the metal compounds contains a metal ion capable of being reduced to produce a milled mixture and heating the resulting milled mixture in an inert atmosphere at a temperature and for a time sufficient to form a mixed metal phosphate, wherein the oxidation state of at least one of the metal ions is reduced in oxidation state without the direct addition of a reducing agent to the reactants. It is another object of the invention to provide electrochemically active materials produced by said methods.
    • 本发明涉及一种制备金属磷酸盐的方法,其包括在碳质容器中研磨锂源,磷酸盐源,例如LiH 2 PO 4,和 含有金属离子的金属氧化物,其中能够还原金属离子,以制备研磨的混合物,并在惰性气氛中在足以形成金属磷酸盐的温度和时间下加热研磨的混合物,其中金属的金属离子 氧化物在氧化状态下降低,而没有将还原剂直接加入原料中。 在另一个实施方案中,本发明涉及一种制备混合金属磷酸盐的方法,该方法包括将锂源和磷酸盐源如LiH 2 PO 4, 氧化物和另一种金属化合物,其中至少一种金属化合物含有能够还原的金属离子以产生研磨的混合物,并将所得研磨的混合物在惰性气氛中在足以形成混合金属磷酸盐的温度和时间 其中至少一种金属离子的氧化态在氧化状态下降低,而没有将还原剂直接加入到反应物中。 本发明的另一个目的是提供通过所述方法生产的电化学活性材料。