Synthesis of metal compounds under carbothermal conditions
    3.
    发明授权
    Synthesis of metal compounds under carbothermal conditions 有权
    在碳热条件下合成金属化合物

    公开(公告)号:US08163430B2

    公开(公告)日:2012-04-24

    申请号:US11161156

    申请日:2005-07-25

    IPC分类号: H01M8/10

    摘要: Active materials of the invention contain at least one alkali metal and at least one other metal capable of being oxidized to a higher oxidation state. Preferred other metals are accordingly selected from the group consisting of transition metals (defined as Groups 4-11 of the periodic table), as well as certain other non-transition metals such as tin, bismuth, and lead. The active materials may be synthesized in single step reactions or in multi-step reactions. In at least one of the steps of the synthesis reaction, reducing carbon is used as a starting material. In one aspect, the reducing carbon is provided by elemental carbon, preferably in particulate form such as graphites, amorphous carbon, carbon blacks and the like. In another aspect, reducing carbon may also be provided by an organic precursor material, or by a mixture of elemental carbon and organic precursor material.

    摘要翻译: 本发明的活性材料含有至少一种碱金属和至少一种能被氧化成较高氧化态的其它金属。 因此,优选的其它金属选自过渡金属(定义为周期表第4-11部分)以及某些其它非过渡金属如锡,铋和铅。 活性物质可以在单步反应或多步反应中合成。 在合成反应的至少一个步骤中,使用还原性碳作为原料。 一方面,还原碳由元素碳提供,优选为颗粒形式,例如石墨,无定形碳,炭黑等。 另一方面,还原碳还可以由有机前体材料或元素碳和有机前体材料的混合物提供。

    Synthesis of Metal Compounds Under Carbothermal Conditions
    4.
    发明申请
    Synthesis of Metal Compounds Under Carbothermal Conditions 审中-公开
    在碳热条件下合成金属化合物

    公开(公告)号:US20070001153A1

    公开(公告)日:2007-01-04

    申请号:US11161186

    申请日:2005-07-26

    IPC分类号: H01B1/08

    摘要: Active materials of the invention contain at least one alkali metal and at least one other metal capable of being oxidized to a higher oxidation state. Preferred other metals are accordingly selected from the group consisting of transition metals (defined as Groups 4-11 of the periodic table), as well as certain other non-transition metals such as tin, bismuth, and lead. The active materials may be synthesized in single step reactions or in multi-step reactions. In at least one of the steps of the synthesis reaction, reducing carbon is used as a starting material. In one aspect, the reducing carbon is provided by elemental carbon, preferably in particulate form such as graphites, amorphous carbon, carbon blacks and the like. In another aspect, reducing carbon may also be provided by an organic precursor material, or by a mixture of elemental carbon and organic precursor material.

    摘要翻译: 本发明的活性材料含有至少一种碱金属和至少一种能被氧化成较高氧化态的其它金属。 因此,优选的其它金属选自过渡金属(定义为周期表第4-11部分)以及某些其它非过渡金属如锡,铋和铅。 活性物质可以在单步反应或多步反应中合成。 在合成反应的至少一个步骤中,使用还原性碳作为原料。 一方面,还原碳由元素碳提供,优选为颗粒形式,例如石墨,无定形碳,炭黑等。 另一方面,还原碳还可以由有机前体材料或元素碳和有机前体材料的混合物提供。

    Methods of making transition metal compounds useful as cathode active materials
    6.
    发明授权
    Methods of making transition metal compounds useful as cathode active materials 有权
    制备用作阴极活性材料的过渡金属化合物的方法

    公开(公告)号:US07276218B2

    公开(公告)日:2007-10-02

    申请号:US10768471

    申请日:2004-01-29

    IPC分类号: C01B25/30 C01D1/02

    摘要: A method for carrying out solid state reactions under reducing conditions is provided. Solid state reactants include at least one inorganic metal compound and a source of reducing carbon. The reaction may be carried out in a reducing atmosphere in the presence of reducing carbon. Reducing carbon may be supplied by elemental carbon, by an organic material, or by mixtures. The organic material is one that can form decomposition products containing carbon in a form capable of acting as a reductant. The reaction proceeds without significant covalent incorporation of organic material into the reaction product. In a preferred embodiment, the solid state reactants also include an alkali metal compound. The products of the method find use in lithium ion batteries as cathode active materials. Preferred active materials include lithium-transition metal phosphates and lithium-transition metal oxides. In a preferred embodiment, the reaction product contains carbon particles intimately mixed among crystals of the active materials.

    摘要翻译: 提供了一种在还原条件下进行固态反应的方法。 固态反应物包括至少一种无机金属化合物和还原性碳源。 反应可以在还原性碳存在下在还原气氛中进行。 还原碳可以由元素碳,有机材料或混合物来提供。 有机材料可以形成能够作为还原剂形式的含有碳的分解产物。 反应进行而没有将有机材料显着共价掺入反应产物中。 在优选的实施方案中,固态反应物还包括碱金属化合物。 该方法的产品可用于锂离子电池作为阴极活性材料。 优选的活性材料包括锂 - 过渡金属磷酸盐和锂 - 过渡金属氧化物。 在优选的实施方案中,反应产物含有在活性物质晶体之间密切混合的碳颗粒。

    Methods of making transition metal compounds useful as cathode active materials
    10.
    发明授权
    Methods of making transition metal compounds useful as cathode active materials 有权
    制备用作阴极活性材料的过渡金属化合物的方法

    公开(公告)号:US06730281B2

    公开(公告)日:2004-05-04

    申请号:US10150353

    申请日:2002-05-17

    IPC分类号: C01B2530

    摘要: A method for carrying out solid state reactions under reducing conditions is provided. Solid state reactants include at least one inorganic metal compound and a source of reducing carbon. The reaction may be carried out in a reducing atmosphere in the presence of reducing carbon. Reducing carbon may be supplied by elemental carbon, by an organic material, or by mixtures. The organic material is one that can form decomposition products containing carbon in a form capable of acting as a reductant. The reaction proceeds without significant covalent incorporation of organic material into the reaction product. In a preferred embodiment, the solid state reactants also include an alkali metal compound. The products of the method find use in lithium ion batteries as cathode active materials. Preferred active materials include lithium-transition metal phosphates and lithium-transition metal oxides. In a preferred embodiment, the reaction product contains carbon particles intimately mixed among crystals of the active materials.

    摘要翻译: 提供了一种在还原条件下进行固态反应的方法。 固态反应物包括至少一种无机金属化合物和还原性碳源。 反应可以在还原性碳存在下在还原气氛中进行。 还原碳可以由元素碳,有机材料或混合物来提供。 有机材料可以形成能够作为还原剂形式的含有碳的分解产物。 反应进行而没有将有机材料显着共价掺入反应产物中。 在优选的实施方案中,固态反应物还包括碱金属化合物。 该方法的产品可用于锂离子电池作为阴极活性材料。 优选的活性材料包括锂 - 过渡金属磷酸盐和锂 - 过渡金属氧化物。 在优选的实施方案中,反应产物含有在活性物质晶体之间密切混合的碳颗粒。