公开(公告)号：US20120264009A1

公开(公告)日：2012-10-18

申请号：US13435464

申请日：2012-03-30

申请人： Min-Han KIM ,  Do-Hyung Park ,  Seon-Young Kwon ,  Yu-Mi Song ,  Ji-Hyun Kim ,  Kyoung-Hyun Kim

发明人： Min-Han KIM ,  Do-Hyung Park ,  Seon-Young Kwon ,  Yu-Mi Song ,  Ji-Hyun Kim ,  Kyoung-Hyun Kim

IPC分类号： H01M10/052 ,  B05D5/12 ,  H01M4/525 ,  H01M4/485 ,  H01M4/505

CPC分类号： H01M4/505 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M4/625 ,  H01M10/052

摘要： A method of preparing a positive active material for a rechargeable lithium battery including a) mixing a composite metal precursor and a lithium compound; b) firing the mixture to prepare a positive active material; c) mixing the resulting positive active material, a carbon coating material, and a solvent; and d) heat-treating the resulting mixture to provide a positive active material coated with the carbon coating material, wherein the carbon coating material is used in an amount of 1 wt % to 30 wt % based on 100 wt % of the composite metal precursor, lithium compound, and carbon coating material, the firing is performed at 400 to 900° C., and the positive active material provided in d) is represented by the following Chemical Formula 1, is provided. LiaNixCoyMnzM′kO2   [Chemical Formula 1] In Chemical Formula 1, each definition is the same as in the detailed description.

摘要翻译： 一种制备用于可再充电锂电池的正极活性材料的方法，包括：a）混合复合金属前体和锂化合物; b）烧制混合物以制备正极活性物质; c）将得到的正极活性物质，碳涂层材料和溶剂混合; 和d）对所得混合物进行热处理以提供涂覆有碳涂层材料的正极活性材料，其中所述碳涂层材料的使用量相对于所述复合金属前体的100重量％为1重量％至30重量％ ，锂化合物和碳涂层材料，在400-900℃下进行焙烧，并且提供d）中提供的正极活性材料由以下化学式1表示。 LiaNixCoyMnzM'kO2 [化学式1]在化学式1中，每个定义与详细描述相同。

公开(公告)号：US20110305954A1

公开(公告)日：2011-12-15

申请号：US13072610

申请日：2011-03-25

申请人： Min-Han KIM ,  Do-Hyung Park ,  Seon-Young Kwon ,  Yu-Mi Song ,  Ji-Hyun Kim ,  Kyoung-Hyun Kim

发明人： Min-Han KIM ,  Do-Hyung Park ,  Seon-Young Kwon ,  Yu-Mi Song ,  Ji-Hyun Kim ,  Kyoung-Hyun Kim

IPC分类号： H01M4/52 ,  H01M4/50

CPC分类号： H01M4/525 ,  C01G53/006 ,  C01G53/44 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2002/77 ,  C01P2006/11 ,  H01M4/131 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/0587

摘要： Disclosed is a positive active material precursor for a secondary lithium battery, which is represented by the following Chemical Formula 1 and has an intensity ratio of I100/I001 of more than or equal to about 2 of the peak I100 of a (001) plane peak to the peak I001 of a (100) plane peak according to X-ray diffraction analysis, a W100/W001 ratio of less than about 2 of the full width at half maximum W100 of a (100) plane peak to the full width at half maximum W001 of a (001) plane peak according to X-ray diffraction analysis, and an S100/S001 ratio of less than or equal to about 0.265 of the area S001 of a (001) plane peak and the area S100 of a (100) plane peak according to X-ray diffraction analysis. [Chemical Formula 1] NixCoyMnzMk(OH)2 wherein, M is a metal, 0.45≦x≦0.65, 0.15≦y≦0.25, 0.15≦y≦0.35, 0≦k≦0.1, and x+y+z+k=1.

摘要翻译： 公开了二次锂电池的正极活性物质前体，其由以下化学式1表示，并且具有（001）面峰的峰I100的强度比I100 / I001大于或等于约2的强度比 根据X射线衍射分析，将（100）平面峰的峰值I001与（100）平面峰的半值全宽W100的半数相对于半数的全宽小于约2的W100 / W001比 （001）面峰值的最大W001，（001）面峰值的面积S001和a（100）的面积S100的S100 / S001比小于或等于约0.265 ）平面峰。 [化学式1] NixCoyMnzMk（OH）2其中，M是金属，0.45和n1E; x和nlE; 0.65,0.15和nlE; y和nlE; 0.25,0.15和nlE; y和nlE; 0.35,0和nlE; k＆nlE; 0.1和x + y + z + k = 1。

公开(公告)号：US20110305947A1

公开(公告)日：2011-12-15

申请号：US13158930

申请日：2011-06-13

申请人： Yu-Mi SONG ,  Do-Hyung PARK ,  Seon-Young KWON ,  Ji-Hyun KIM ,  Min-Han KIM ,  Kyoung-Hyun KIM

发明人： Yu-Mi SONG ,  Do-Hyung PARK ,  Seon-Young KWON ,  Ji-Hyun KIM ,  Min-Han KIM ,  Kyoung-Hyun KIM

IPC分类号： H01M4/131 ,  H01M10/056

CPC分类号： H01M4/505 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/50 ,  C01P2002/88 ,  C01P2006/32 ,  C01P2006/40 ,  C01P2006/42 ,  H01M4/02 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021

摘要： Disclosed are a positive active material for a lithium rechargeable battery and a lithium rechargeable battery using the same, and the positive active material is represented by the following Chemical Formula 1, and has an effective magnetic moment of about 2.4 μB/mol or greater at a temperature of more than or equal to a Curie temperature. Chemical Formula 1: LiMeO2. In Chemical Formula 1, Me is NixCOyMnzM′k, 0.45≦x≦0.65, 0.15≦y≦0.25, 0.15≦z≦0.35, 0.9≦a≦1.2, 0≦k≦0.1, x+y+z+k=1, and M′ is Al, Mg, Ti, Zr, or a combination thereof. The positive active material may have an a-axis lattice constant of the positive active material of about 2.865 Å or greater, and may have a c-axis lattice constant of the positive active material of about 14.2069 Å or greater. A mole ratio of Li to Me of Chemical Formula 1 may range from about 0.9 to about 1.2.

摘要翻译： 公开了一种锂可再充电电池的正极活性材料和使用该锂二次电池的锂可再充电电池，正极活性材料由以下化学式1表示，并且在a的情况下具有约2.4μB/ mol以上的有效磁矩 温度大于或等于居里温度。 化学式1：LiMeO 2。 在化学式1中，Me是NixCOyMnzM'k，0.45＆nlE; x和nlE; 0.65,0.15和nlE; y＆nlE; 0.25,0.15＆nlE; z＆nlE; 0.35,0.9＆nlE; a＆nlE; 1.2,0＆nlE; k＆nlE; 0.1，x + y + z + k = 1，M'为Al，Mg，Ti，Zr或其组合。 正极活性材料可以具有约2.865或更高的正极活性材料的a轴晶格常数，并且可以具有约14.2069埃或更高的正极活性材料的c轴晶格常数。 化学式1的Li与Me的摩尔比可以在约0.9至约1.2的范围内。