利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

91 条记录 (耗时 0.036 秒)

    Cathode active material for lithium secondary battery
    1.
    发明授权
    Cathode active material for lithium secondary battery 有权
    锂二次电池用阴极活性物质

    公开(公告)号：US08277980B2

    公开(公告)日：2012-10-02

    申请号：US12833518

    申请日：2010-07-09

    申请人： Sung kyun Chang ,  Hong-Kyu Park ,  Hyo-shik Kil ,  Jin-hyung Lim

    发明人： Sung kyun Chang ,  Hong-Kyu Park ,  Hyo-shik Kil ,  Jin-hyung Lim

    IPC分类号： H01M4/00 ,  H01M4/13 ,  H01M4/50 ,  H01M4/58 ,  H01M4/88 ,  C01D1/02 ,  C01G45/12

    CPC分类号： H01M4/505 ,  C01G53/04 ,  C01P2002/72 ,  C01P2006/40 ,  H01M4/525

    摘要： Provided is a cathode active material which is lithium transition metal oxide having an α-NaFeO2 layered crystal structure, wherein the transition metal is a blend of Ni and Mn, an average oxidation number of the transition metals except lithium is +3 or higher, and lithium transition metal oxide satisfies the Equation m(Ni)≧m(Mn) (in which m (Ni) and m (Mn) represent an molar number of manganese and nickel, respectively). The lithium transition metal oxide has a uniform and stable layered structure through control of oxidation number of transition metals to a level higher than +3, thus advantageously exerting improved overall electrochemical properties including electric capacity, in particular, superior high-rate charge/discharge characteristics.

    摘要翻译： 本发明提供一种正极活性物质，其为具有α-NaFeO 2层状结晶结构的锂过渡金属氧化物，其中，过渡金属为Ni和Mn的混合物，除锂以外的过渡金属的平均氧化数为+3以上， 锂过渡金属氧化物满足方程m（Ni）≥m（Mn）（其中m（Ni）和m（Mn）分别表示锰和镍的摩尔数）。 锂过渡金属氧化物通过将过渡金属的氧化数控制到高于+ 3的水平，具有均匀且稳定的层状结构，因此有利地实现包括电容在内的改进的整体电化学性质，特别是优异的高速率充电/放电特性 。

    CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY
    2.
    发明申请
    CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY 有权
    用于锂二次电池的阴极活性材料

    公开(公告)号：US20110140036A1

    公开(公告)日：2011-06-16

    申请号：US12833518

    申请日：2010-07-09

    申请人： Sung kyun CHANG ,  Hong-Kyu Park ,  Hyo-Shik Kil ,  Jin-hyung Lim

    发明人： Sung kyun CHANG ,  Hong-Kyu Park ,  Hyo-Shik Kil ,  Jin-hyung Lim

    IPC分类号： H01M4/86 ,  C01G53/04

    CPC分类号： H01M4/505 ,  C01G53/04 ,  C01P2002/72 ,  C01P2006/40 ,  H01M4/525

    摘要： Provided is a cathode active material which is lithium transition metal oxide having an α-NaFeO2 layered crystal structure, wherein the transition metal is a blend of Ni and Mn, an average oxidation number of the transition metals except lithium is +3 or higher, and lithium transition metal oxide satisfies the Equation m(Ni)≧m(Mn) (in which m (Ni) and m (Mn) represent an molar number of manganese and nickel, respectively). The lithium transition metal oxide has a uniform and stable layered structure through control of oxidation number of transition metals to a level higher than +3, thus advantageously exerting improved overall electrochemical properties including electric capacity, in particular, superior high-rate charge/discharge characteristics.

    摘要翻译： 本发明提供一种正极活性物质，其为具有α-NaFeO 2层状结晶结构的锂过渡金属氧化物，其中，过渡金属为Ni和Mn的混合物，除锂以外的过渡金属的平均氧化数为+3以上， 锂过渡金属氧化物满足方程m（Ni）≥m（Mn）（其中m（Ni）和m（Mn）分别表示锰和镍的摩尔数）。 锂过渡金属氧化物通过将过渡金属的氧化数控制到高于+ 3的水平，具有均匀且稳定的层状结构，因此有利地实现包括电容在内的改进的整体电化学性质，特别是优异的高速率充电/放电特性 。

    Cathode mix having improved efficiency and energy density of electrode
    6.
    发明授权
    Cathode mix having improved efficiency and energy density of electrode 有权
    具有提高电极效率和能量密度的阴极混合物

    公开(公告)号：US08962185B2

    公开(公告)日：2015-02-24

    申请号：US12709011

    申请日：2010-02-19

    申请人： Sanghoon Choy ,  Yong Tae Lee ,  Hong-Kyu Park ,  Soo Min Park ,  Hyo-Shik Kil ,  Cheol-Hee Park

    发明人： Sanghoon Choy ,  Yong Tae Lee ,  Hong-Kyu Park ,  Soo Min Park ,  Hyo-Shik Kil ,  Cheol-Hee Park

    IPC分类号： H01M4/52 ,  H01M4/58 ,  C01B25/37 ,  H01M4/136 ,  H01M10/052 ,  H01M6/50

    CPC分类号： H01M4/5825 ,  C01B25/37 ,  H01M4/136 ,  H01M10/052 ,  H01M2006/5094

    摘要： Provided is a cathode mix for lithium secondary batteries, comprising a cathode active material having a composition represented by the following Formula I: LiFe(P1-XO4) (I) wherein a molar fraction (1−x) of phosphorus (P) is in the range of 0.910 to 0.999, to allow operational efficiency of the cathode active material to be leveled to a lower operational efficiency of an anode active material and improve energy density of the cathode active material.The cathode mix maximizes operational efficiency of batteries, minimizes electrode waste and thus reduces manufacturing costs of batteries. Furthermore, The cathode active material, wherein a molar fraction (1−x) of phosphorus (P) is lower than 1, according to the present invention contains both Fe2+ and Fe3+, thus advantageously causing no structural deformation, improving ionic conductivity, exhibiting superior rate properties, inhibiting IR drop upon charge/discharge, thereby imparting high energy density to batteries.

    摘要翻译： 提供一种用于锂二次电池的阴极混合物，其包含具有由下式I表示的组成的阴极活性材料：其中磷（P）的摩尔分数（1-x）在其中的LiFe（P1-XO4）（I） 范围为0.910至0.999，以使阴极活性材料的操作效率平衡至阳极活性材料的较低操作效率，并提高阴极活性材料的能量密度。 阴极混合物可最大限度地提高电池的运行效率，最大限度地减少电极浪费，从而降低电池的制造成本。 此外，根据本发明的磷（P）的摩尔分数（1-x）小于1的正极活性物质既含有Fe 2+和Fe 3+，因此有利地不引起结构变形，提高离子电导率，显示出优异的 速率特性，在充电/放电时抑制IR降低，从而赋予电池高的能量密度。

    LITHIUM IRON PHOSPHATE HAVING OLIVINE STRUCTURE AND METHOD FOR ANALYZING THE SAME
    7.
    发明申请
    LITHIUM IRON PHOSPHATE HAVING OLIVINE STRUCTURE AND METHOD FOR ANALYZING THE SAME 审中-公开
    具有OLIVINE结构的锂铁磷酸盐及其分析方法

    公开(公告)号：US20100261060A1

    公开(公告)日：2010-10-14

    申请号：US12709021

    申请日：2010-02-19

    申请人： Sanghoon CHOY ,  Yong Tae Lee ,  Hong-Kyu Park ,  Soo Min Park ,  Hyo-shik Kil ,  Cheol-Hee Park

    发明人： Sanghoon CHOY ,  Yong Tae Lee ,  Hong-Kyu Park ,  Soo Min Park ,  Hyo-shik Kil ,  Cheol-Hee Park

    IPC分类号： H01M4/58 ,  H01M4/90 ,  G01N33/00 ,  G01N23/20

    CPC分类号： H01M4/5825 ,  C01B25/45 ,  H01M4/136 ,  H01M4/624 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  Y10T436/20

    摘要： Provided is an olivine-type lithium iron phosphate having a composition represented by Formula I, comprising 0.1 to 5% by weight of Li3PO4, and comprising no Li2CO3 or, if present, comprising Li2CO3 in an amount less than 0.25% by weight: Lii+aFe1−xMx(PO4−b)Xb (I) wherein M, X, a, x and b are as defined above.The lithium iron phosphate comprises no lithium carbonate (Li2CO3) or, if present, comprises the Li2CO3 in an extremely small amount, and comprises Li3PO4 having superior electrochemical stability, thermal stability and ionic conductivity, thus advantageously imparting high-temperature and storage stability as well as stability and rate properties to lithium secondary batteries, when used as a cathode active material for the lithium secondary batteries.

    摘要翻译： 本发明提供一种具有由式I表示的组成的橄榄石型磷酸铁锂，其包含0.1至5重量％的Li 3 PO 4，并且不包含Li 2 CO 3或如果存在，其包含少于0.25重量％的Li 2 CO 3：Li + aFe1-xMx（PO4-b）Xb（I）其中M，X，a，x和b如上所定义。 磷酸铁锂不包含碳酸锂（Li 2 CO 3），或者如果存在的话，极少量包含Li 2 CO 3，并且包含具有优异的电化学稳定性，热稳定性和离子导电性的Li 3 PO 4，因此有利地赋予高温和储存稳定性 作为锂二次电池的稳定性和速率特性，用作锂二次电池的正极活性物质。

    CATHODE ACTIVE MATERIAL PROVIDING IMPROVED EFFICIENCY AND ENERGY DENSITY OF ELECTRODE
    10.
    发明申请
    CATHODE ACTIVE MATERIAL PROVIDING IMPROVED EFFICIENCY AND ENERGY DENSITY OF ELECTRODE 有权
    阴极活性材料提高电极效率和能量密度

    公开(公告)号：US20110287315A1

    公开(公告)日：2011-11-24

    申请号：US13124421

    申请日：2009-10-22

    申请人： Sanghoon Choy ,  Yong Tae Lee ,  Hong-Kyu Park ,  Soo Min Park ,  Hyo-shik Kil ,  Cheol-Hee Park ,  Ji Eun Lee

    发明人： Sanghoon Choy ,  Yong Tae Lee ,  Hong-Kyu Park ,  Soo Min Park ,  Hyo-shik Kil ,  Cheol-Hee Park ,  Ji Eun Lee

    IPC分类号： H01M4/52 ,  H01M4/525 ,  H01M4/64 ,  B82Y30/00

    CPC分类号： H01M4/5825 ,  C01B25/45 ,  H01M4/136 ,  H01M2006/5094

    摘要： Provided is a cathode active material having a composition represented by the following Formula I: LiFe(P1-XO4) (I) wherein a molar fraction (1-x) of phosphorus (P) is in the range of 0.910 to 0.999, to allow operational efficiency of the cathode active material to be leveled to a lower operational efficiency of an anode active material and improve energy density of the cathode active material. Furthermore, a cathode active material, wherein a molar fraction (1-x) of phosphorus (P) is lower than 1, contains both Fe2+ and Fe3+, thus advantageously preventing structural deformation, improving ionic conductivity, exhibiting superior rate properties and inhibiting IR drop upon charge/discharge, thereby imparting high energy density to batteries.

    摘要翻译： 本发明提供具有以下式I表示的组成的正极活性物质：磷（P）的摩尔分数（1-x）为0.910〜0.999的LiFe（P1-XO4）（I），以允许 阴极活性材料的操作效率被平衡到负极活性材料的较低的操作效率并且改善阴极活性材料的能量密度。 此外，其中磷（P）的摩尔分数（1-x）低于1的正极活性材料含有Fe 2+和Fe 3+，从而有利地防止结构变形，改善离子电导率，表现出优异的速率性质和抑制IR降低 充电/放电，从而赋予电池高的能量密度。