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    • 2. 发明申请
    • POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERIES, POSITIVE ELECTRODE FOR LITHIUM ION BATTERIES, AND LITHIUM ION BATTERY
    • 用于锂离子电池的正极电极活性材料,锂离子电池的正极和锂离子电池
    • US20130316239A1
    • 2013-11-28
    • US13984947
    • 2012-03-27
    • Kentaro Okamoto
    • Kentaro Okamoto
    • H01M4/52
    • H01M4/52C01G53/42C01G53/50C01P2004/03C01P2004/50H01M4/485H01M4/505H01M4/525H01M10/0525Y02E60/122
    • The present invention provides a positive electrode active material for lithium ion batteries having satisfactory battery characteristics. The positive electrode active material for lithium ion batteries, is represented by the following composition formula: Li(LixNi1−x−yMy)O2+α wherein M represents one or more selected from the group consisting of scandium (Sc), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), copper (Cu), zinc (Zn), gallium (Ga), germanium (Ge), bismuth (Bi), tin (Sn), magnesium (Mg), calcium (Ca), boron (B) and zirconium (Zr); 0≦x≦0.1; 0 0,wherein the particle size of primary particles is 1.6 to 2.3 μm,the alkali amount at the particle surfaces measured by two-stage neutralization titration is 1.2% by mass or less, andwhen the amount of lithium hydroxide in the alkali amount at the particle surfaces is designated as A% by mass, and the amount of lithium carbonate is designated as B% by mass, the ratio A/B is 1 or less.
    • 本发明提供一种具有满意的电池特性的锂离子电池用正极活性物质。 用于锂离子电池的正极活性物质由以下组成式表示:Li(Li x Ni 1-x-y M y)O 2 +α其中M表示选自钪(Sc),钛(Ti) ,钒(V),铬(Cr),锰(Mn),铁(Fe),钴(Co),铜(Cu),锌(Zn),镓(Ga),锗(Ge),铋(Bi) ,锡(Sn),镁(Mg),钙(Ca),硼(B)和锆(Zr); 0 @ x @ 0.1; 0 0,其中初级粒子的粒径为1.6〜2.3μm,通过两级中和滴定测定的粒子表面的碱量为1.2质量%以下,当碱的氢氧化锂的量 颗粒表面的量指定为A质量%,碳酸锂的量为B质量%,A / B比为1以下。
    • 4. 发明授权
    • Positive electrode active material for lithium ion batteries, positive electrode for lithium ion batteries, and lithium ion battery
    • 锂离子电池用正极活性物质,锂离子电池用正极和锂离子电池
    • US09214676B2
    • 2015-12-15
    • US13984947
    • 2012-03-27
    • Kentaro Okamoto
    • Kentaro Okamoto
    • H01M4/52H01M4/505H01M4/525C01G53/00H01M4/485H01M10/0525
    • H01M4/52C01G53/42C01G53/50C01P2004/03C01P2004/50H01M4/485H01M4/505H01M4/525H01M10/0525Y02E60/122
    • The present invention provides a positive electrode active material for lithium ion batteries having satisfactory battery characteristics. The positive electrode active material for lithium ion batteries, is represented by the following composition formula: Li(LixNi1-x-yMy)O2+α wherein M represents one or more selected from the group consisting of scandium (Sc), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), copper (Cu), zinc (Zn), gallium (Ga), germanium (Ge), bismuth (Bi), tin (Sn), magnesium (Mg), calcium (Ca), boron (B) and zirconium (Zr); 0≦x≦0.1; 0 0, wherein the particle size of primary particles is 1.6 to 2.3 μm, the alkali amount at the particle surfaces measured by two-stage neutralization titration is 1.2% by mass or less, and when the amount of lithium hydroxide in the alkali amount at the particle surfaces is designated as A % by mass, and the amount of lithium carbonate is designated as B % by mass, the ratio A/B is 1 or less.
    • 本发明提供一种具有满意的电池特性的锂离子电池用正极活性物质。 用于锂离子电池的正极活性物质由以下组成式表示:Li(Li x Ni 1-x-y M y)O 2 +α其中M表示选自钪(Sc),钛(Ti) ,钒(V),铬(Cr),锰(Mn),铁(Fe),钴(Co),铜(Cu),锌(Zn),镓(Ga),锗(Ge),铋(Bi) ,锡(Sn),镁(Mg),钙(Ca),硼(B)和锆(Zr); 0≦̸ x≦̸ 0.1; 0 0,其中初级粒子的粒径为1.6〜2.3μm,通过两级中和滴定测定的粒子表面的碱量为1.2质量%以下,并且当碱金属中的氢氧化锂的量 颗粒表面的量指定为A质量%,碳酸锂的量为B质量%,A / B比为1以下。
    • 7. 发明申请
    • Positive Electrode Active Substance For Lithium Ion Batteries, Positive Electrode For Lithium Ion Batteries, And Lithium Ion Battery
    • 锂离子电池正极活性物质,锂离子电池正极和锂离子电池
    • US20120319040A1
    • 2012-12-20
    • US13582101
    • 2011-03-02
    • Kentaro OkamotoYoshio Kajiya
    • Kentaro OkamotoYoshio Kajiya
    • H01M4/525
    • C01G53/42C01G53/50C01P2002/54C01P2006/40H01M4/525Y02E60/122
    • The present invention provides a positive electrode active material for lithium ion battery which has a high capacity and good rate characteristics can be provided. The positive electrode active material for lithium ion battery has a layer structure represented by the compositional formula: Lix(NiyM1-y)Oz (wherein M represents at least one type selected from the group consisting of Mn, Co, Al, Mg, Cr, Ti, Fe, Nb, Cu and Zr, x denotes a number from 0.9 to 1.2, y denotes a number from 0.80 to 0.90, and z denotes a number of 1.9 or more), wherein the coordinates of the lattice constant a and compositional ratio (Li/M) are within the region enclosed by four lines given by the equations: y=1.01, y=1.10, x=2.8748, and x=2.87731 on a graph in which the x-axis represents a lattice constant a and the y-axis represents a compositional ratio (Li/M) of Li to M, and the lattice constant c is 14.2 to 14.25.
    • 本发明提供一种锂离子电池用正极活性物质,其具有高容量且能提供良好的速率特性。 用于锂离子电池的正极活性物质具有由以下组成式表示的层结构:Lix(NiyM1-y)Oz(其中M表示选自Mn,Co,Al,Mg,Cr, Ti,Fe,Nb,Cu和Zr,x表示0.9〜1.2的数,y表示0.80〜0.90的数,z表示数为1.9以上),其中,晶格常数a和组成比 (Li / M)在由以下等式给出的四条线所包围的区域内:y = 1.01,y = 1.10,x = 2.8748,x = 2.87731,其中x轴表示晶格常数a, y轴表示Li与M的组成比(Li / M),晶格常数c为14.2〜14.25。