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发明公开
CN101421186A 金属磷酸盐的合成 失效 - 权利终止

金属磷酸盐的合成
摘要：
本发明涉及一种制备金属磷酸盐的方法，该方法包括将锂源、磷酸根源，例如LiH2PO4，和包含可以被还原的金属离子的金属氧化物在含碳容器中碾磨得到碾碎的混合物，在惰性气氛下加热该碾碎的混合物，加热足够时间和温度以形成金属磷酸盐，其中金属氧化物的金属离子的氧化态在原料中没有直接加入还原剂的情况下被还原。本发明的另一个实施方式涉及一种制备混合金属磷酸盐的方法，该方法包括将锂源、磷酸根源，例如LiH2PO4，金属氧化物和另一种金属化合物在含碳容器中碾磨得到碾碎的混合物，其中至少一种金属化合物包括能被还原的金属离子，在惰性气氛下加热该碾碎的混合物，加热足够时间和温度以形成混合金属磷酸盐，其中至少一种金属离子的氧化态在反应物中没有直接加入还原剂的情况下被还原。本发明的另一个目的是提供通过所述方法制备的电化学活性材料。
摘要（英）：

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.

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