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    Cathode composition for lithium batteries and method of preparing the same
    1.
    发明授权
    Cathode composition for lithium batteries and method of preparing the same 有权
    锂电池用阴极组合物及其制备方法

    公开(公告)号：US07157072B2

    公开(公告)日：2007-01-02

    申请号：US10886077

    申请日：2004-07-06

    Applicant: Xianglan Wu ,  Yong Joon Park ,  Kwang Sun Ryu ,  Soon Ho Chang

    Inventor： Xianglan Wu ,  Yong Joon Park ,  Kwang Sun Ryu ,  Soon Ho Chang

    IPC: C01B13/00

    CPC classification number: H01M4/505 ,  C01G45/1221 ,  C01G45/1228 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2006/40 ,  H01M4/0471 ,  H01M4/485

    Abstract: Provided is a cathode composition for lithium secondary battery that includes a lithium-chromium-titanium-manganese oxide that has the formula Li[Li(1-x)/3CrxTi(2/3)yMn2(1-x-y)/3]O2 where 0≦x≦0.3, 0≦y≦0.3 and 0.1≦x+y≦0.3, and layered a-LiFeO2 structure. A method of synthesizing the lithium-chromium-titanium manganese oxide includes preparing a first mixed solution by dispersing titanium dioxide (TiO2) in a mixed solution of chrome acetate (Cr3(OH)2(CH3CO2)7) and manganese acetate ((CH3CO2)2Mn.4H2O), adding a lithium hydroxide (LiOH) solution to the first mixed solution to obtain homogeneous precipitates, forming precursor powder that has the formula Li[Li(1-x)/3CrxTi(2/3)yMn2(1-x-y)/3]O2 where 0≦x≦0.3, 0≦y≦0.3 and 0.1≦x+y≦0.3 by heating the homogeneous precipitates, and heating the precursor powder to form oxide powder having a layered structure.

    Abstract translation: 本发明提供一种锂二次电池用阴极组合物，其特征在于，具有式Li [Li（1-x）/ 3 Ti（2/3）y Mn 2（1-xy）/ 3 O 2其中0 <= x <= 0.3,0 <= y <= 0.3和0.1 <= x + y <= 0.3，层叠a-LiFeO 2结构。 合成锂 - 铬 - 钛锰氧化物的方法包括通过将二氧化钛（TiO 2）在乙酸铬（Cr 3 O 3）的混合溶液中分散来制备第一混合溶液， （OH）2（CH 3 CO 2）7）和乙酸锰（（CH 3） 将第一混合溶液中的氢氧化锂（LiOH）溶液加入到第二混合溶液中，向第二混合溶液中加入氢氧化锂（LiOH） 获得均匀的沉淀物，形成具有式Li [Li（1-x）/ 3 Cr x Ti（2/3）y Mn 2（1-xy）/ 3 O 2其中0 <= x <= 0.3,0 <= y <0.3和0.1 <= x + y 通过加热均匀的沉淀物，加热前体粉末形成具有层状结构的氧化物粉末，使其为<= 0.3。

    Cathode composition for lithium batteries and method of preparing the same
    4.
    发明申请
    Cathode composition for lithium batteries and method of preparing the same 有权
    锂电池用阴极组合物及其制备方法

    公开(公告)号：US20050069772A1

    公开(公告)日：2005-03-31

    申请号：US10886077

    申请日：2004-07-06

    Applicant: Xianglan Wu ,  Yong Park ,  Kwang Ryu ,  Soon Chang

    Inventor： Xianglan Wu ,  Yong Park ,  Kwang Ryu ,  Soon Chang

    IPC: C01G45/00 ,  C01G45/12 ,  H01M4/505 ,  H01M10/05 ,  H01M4/50

    CPC classification number: H01M4/505 ,  C01G45/1221 ,  C01G45/1228 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2006/40 ,  H01M4/0471 ,  H01M4/485

    Abstract: Provided is a cathode composition for lithium secondary battery that includes a lithium-chromium-titanium-manganese oxide that has the formula Li[Li(1-x)/3CrxTi2/3yMn2(1-x-y)/3]O2, where 0≦x≦0.3, 0≦y≦0.3 and 0.1≦x+y≦0.3, and layered α-LiFeO2 structure. A method of synthesizing the lithium-chromium-titanium manganese oxide includes preparing a first mixed solution by dispersing titanium dioxide (TiO2) in a mixed solution of chrome acetate (Cr3(OH)2(CH3CO2)7) and manganese acetate ((CH3CO2)2Mn.4H2O), adding a lithium hydroxide (LiOH) solution to the first mixed solution to obtain homogeneous precipitates, forming precursor powder that has the formula Li[Li(1-x)/3CrxTi2/3yMn2(1-x-y)/3]O2 where 0≦x≦0.3, 0≦y≦0.3 and 0.1≦x+y≦0.3 by heating the homogeneous precipitates, and heating the precursor powder to form oxide powder having a layered structure.

    Abstract translation: 本发明提供一种锂二次电池用阴极组合物，其包含具有式Li [Li（1-x）/ 3CrxTi2 / 3yMn2（1-xy）/ 3] O2的锂 - 铬 - 钛 - 锰氧化物，其中0 < x <= 0.3,0 <= y <0.3和0.1 <= x + y <= 0.3，层状α-LiFeO2结构。 合成锂 - 铬 - 钛锰氧化物的方法包括通过将二氧化钛（TiO 2）分散在乙酸铬（Cr 3（OH）2（CH 3 CO 2）7）和乙酸锰（（CH 3 CO 2））的混合溶液中来制备第一混合溶液， 2MnH·4H 2 O），向第一混合溶液中加入氢氧化锂（LiOH）溶液以获得均匀的沉淀，形成具有式Li [Li（1-x）/ 3CrxTi2 / 3yMn2（1-xy）/ 3] 其中0 <= x <= 0.3,0 <= y <0.3和0.1 <= x + y <= 0.3通过加热均匀的沉淀物，并加热前体粉末以形成具有层状结构的氧化物粉末。

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