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    Positive electrode active material for non-aqueous electrolyte secondary cell
    3.
    发明授权
    Positive electrode active material for non-aqueous electrolyte secondary cell 有权
    用于非水电解质二次电池的正极活性材料

    公开(公告)号：US07794879B2

    公开(公告)日：2010-09-14

    申请号：US10599393

    申请日：2005-03-30

    申请人： Jun-ichi Yamaki ,  Shigeto Okada ,  Toshiyasu Kiyabu ,  Kenji Nakane

    发明人： Jun-ichi Yamaki ,  Shigeto Okada ,  Toshiyasu Kiyabu ,  Kenji Nakane

    IPC分类号： H01M4/52

    CPC分类号： H01M10/054 ,  C01G49/0027 ,  C01P2002/72 ,  C01P2006/40 ,  H01M4/52 ,  H01M4/525 ,  H01M2004/028

    摘要： A positive electrode active material for a non-aqueous electrode secondary cell which comprises a composite oxide containing iron and sodium as main components, having a hexagonal crystal structure, and exhibiting a value obtained by dividing the intensity of a peak corresponding to an interplanar spacing of 2.20 Å by the intensity of a peak corresponding to an interplanar spacing of 5.36 Å of 2 or less in the X-ray diffraction analysis of said composite oxide; and a method for preparing the positive electrode active material wherein the above composite oxide is prepared by heating a metal compound mixture mainly containing a sodium compound and an iron compound in the temperature range of 400 to 900° C., which comprises heating the metal compound mixture in an inert atmosphere in the temperature range of less than 100° C. on the way of the rise in the temperature. The use of the above active material allows the manufacture of a cell which is free from the rapid reduction of the discharge voltage with the progress of discharge.

    摘要翻译： 一种非水电极二次电池用正极活性物质，其特征在于，包含含有铁和钠作为主要成分的复合氧化物，具有六方晶系结构，并且表现出通过将对应于晶面间距的峰的强度除以 在所述复合氧化物的X射线衍射分析中，对应于5.36的面间距为2以下的峰的强度为2.20埃; 以及制备正极活性物质的方法，其中通过在400-900℃的温度范围内加热主要含有钠化合物和铁化合物的金属化合物混合物来制备上述复合氧化物，其包括加热金属化合物 混合物在惰性气氛中在温度范围内小于100℃的温度升高。 使用上述活性物质允许制造电池，随着放电进行而不会迅速降低放电电压。

    Positive Electrode Active Material For Non-Aqueou Electrolyte Secondary Cell
    4.
    发明申请
    Positive Electrode Active Material For Non-Aqueou Electrolyte Secondary Cell 有权
    非电解电解质二次电池用正极活性物质

    公开(公告)号：US20070212605A1

    公开(公告)日：2007-09-13

    申请号：US10599393

    申请日：2005-03-30

    申请人： Jun-ichi Yamaki ,  Shigeto Okada ,  Toshiyasu Kiyabu ,  Kenji Nakane

    发明人： Jun-ichi Yamaki ,  Shigeto Okada ,  Toshiyasu Kiyabu ,  Kenji Nakane

    IPC分类号： H01M4/52 ,  C01G49/02

    CPC分类号： H01M10/054 ,  C01G49/0027 ,  C01P2002/72 ,  C01P2006/40 ,  H01M4/52 ,  H01M4/525 ,  H01M2004/028

    摘要： A positive electrode active material for a non-aqueous electrode secondary cell which comprises a composite oxide containing iron and sodium as main components, having a hexagonal crystal structure, and exhibiting a value obtained by dividing the intensity of a peak corresponding to an interplanar spacing of 2.20 Å by the intensity of a peak corresponding to an inierplanar spacing of 5.36 Å of 2 or less in the X-ray diffraction analysis of said composite oxide; and a method for preparing the positive electrode active material wherein the above composite oxide is prepared by heating a metal compound mixture mainly containing a sodium compound and an iron compound in the temperature range of 400 to 900° C., which comprises heating the metal compound mixture in an inert atmosphere in the temperature range of less than 100° C. on the way of the rise in the temperature. The use of the above active material allows the manufacture of a cell which is free from the rapid reduction of the discharge voltage with the progress of discharge.

    摘要翻译： 一种非水电极二次电池用正极活性物质，其特征在于，包含含有铁和钠作为主要成分的复合氧化物，具有六方晶系结构，并且表现出通过将对应于晶面间距的峰的强度除以 在所述复合氧化物的X射线衍射分析中，对应于5.36埃的平面间距的峰的强度为2或更小的2.20埃; 以及制备正极活性物质的方法，其中通过在400-900℃的温度范围内加热主要含有钠化合物和铁化合物的金属化合物混合物来制备上述复合氧化物，其包括加热金属化合物 混合物在惰性气氛中在温度范围内小于100℃的温度升高。 使用上述活性物质允许制造电池，随着放电进行而不会迅速降低放电电压。