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100 条记录 (耗时 0.043 秒)

    Lithium metal dispersion in electrodes
    12.
    发明申请
    Lithium metal dispersion in electrodes 审中-公开
    电极中的锂金属分散体

    公开(公告)号：US20050130043A1

    公开(公告)日：2005-06-16

    申请号：US10900715

    申请日：2004-07-28

    申请人： Yuan Gao ,  Marina Yakovleva ,  John Engel ,  Christine Jarvis ,  Michael Lain

    发明人： Yuan Gao ,  Marina Yakovleva ,  John Engel ,  Christine Jarvis ,  Michael Lain

    IPC分类号： H01M4/13 ,  H01M4/133 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/40 ,  H01M4/58 ,  H01M4/587 ,  H01M6/00 ,  H01M10/0525 ,  H01M10/36 ,  H01M4/04

    摘要： Electrodes, such as anodes and cathodes, can include a host material that is prelithiated or undergoes lithiation upon electrolyte introduction into a battery. Lithiation of the host material can occur by the agitation of lithium metal and a host material, the agitation of a lithium metal powder and a host material at a temperature greater than room temperature, the application of pressure to a lithium metal and host material mixture, contact of the host material with molten lithium metal, the lamination of lithium foil or lithium mesh onto an electrode containing the host material, or by lamination of lithium metal or mesh onto an electrode at elevated temperatures.

    摘要翻译： 诸如阳极​​和阴极的电极可以包括在电解质引入电池中时被预锂化或经历锂化的主体材料。 主体材料的锂化可以通过锂金属和主体材料的搅拌，在大于室温的温度下搅拌锂金属粉末和主体材料，向锂金属和主体材料混合物施加压力， 主体材料与熔融锂金属的接触，将锂箔或锂网叠层在含有主体材料的电极上，或者通过在升高的温度下将锂金属或网状物层压到电极上。

    Lithium cobalt oxides and methods of making same
    14.
    发明授权
    Lithium cobalt oxides and methods of making same 失效
    锂钴氧化物及其制造方法

    公开(公告)号：US06579475B2

    公开(公告)日：2003-06-17

    申请号：US09731949

    申请日：2000-12-07

    申请人： Yuan Gao ,  Marina Yakovleva ,  John L. Burba, III ,  John F. Engel

    发明人： Yuan Gao ,  Marina Yakovleva ,  John L. Burba, III ,  John F. Engel

    IPC分类号： H01B108

    CPC分类号： C01G51/42 ,  C01P2002/20 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2006/40 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021

    摘要： The present invention includes lithium cobalt oxides having hexagonal layered crystal structures and methods of making same. The lithium cobalt oxides of the invention have the formula LiwCo1−xAxO2+y wherein 0.96≦w≦1.05, 0≦x≦0.05, −0.02≦y≦0.02 and A is one or more dopants. The lithium cobalt oxides of the invention preferably have a position within the principal component space defined by the relationship axi+byi≦c, wherein xi={right arrow over (S)}i&Circlesolid;{right arrow over (P)}c1; yi={right arrow over (S)}i&Circlesolid;{right arrow over (P)}c2; the vector {right arrow over (S)}i is the x-ray spectrum for the LiwCo1−xAxO2+y compound; the vectors {right arrow over (P)}c1 and {right arrow over (P)}c2 defining the principal component space are determined by measuring the x-ray powder diffraction values {right arrow over (S)}i between 15° and 120° using a 0.02° step size and CuK&agr; rays for a large sample set of lithium cobalt oxides and using the regression of {right arrow over (S)}i of the sample set against the capacity fade after 50 cycles of a lithium coin cell that includes a lithium negative electrode and the lithium cobalt oxide as the positive electrode material and that is cycled between 3.0 and 4.3V at a constant current of C/3 during both charge and discharge cycles; and the values a, b and c are determined by using only the xi and yi values for LiwCo1−xAxO2+y compounds in the sample set that have a capacity fade after 50 cycles of less than or equal to 15%.

    摘要翻译： 本发明包括具有六方晶系结构的锂钴氧化物及其制造方法。 本发明的锂钴氧化物具有式LiwCo1-xAxO2 + y，其中0.96 <= w <= 1.05,0 <= x <= 0.05,0.02 <= y <0.02，A是一种或多种掺杂剂。 本发明的锂钴氧化物优选具有由关系axi + byi <= c定义的主要成分空间内的位置，其中xi = {向右箭头（Si＆Circlef; {向右箭头（Pc1; yi = {向右箭头 （Si＆Circlef; {向右箭头（Pc2;向量{向右箭头（Si是LiwCo1-xAxO2 + y化合物的x射线光谱）;向量（向右箭头（Pc1和{向右箭头（Pc2定义 通过测量x射线粉末衍射值（右箭头（在15°和120°之间的Si，使用0.02°步长的Si和用于大型锂钴氧化物的样品组的CuKalpha射线）并使用{ 向右箭头（相对于包含锂负极和锂钴氧化物作为正极材料的锂电池的循环50次循环后的容量褪色，并且以恒定电流在3.0和4.3V之间循环的样品组的Si 在充电和放电期间的C / 3 循环; 并且通过仅使用少于或等于15％的50个循环之后具有容量衰减的样品组中的LiwCo1-xAxO2 + y化合物的xi和yi值来确定值a，b和c。