公开(公告)号：US20170352883A1

公开(公告)日：2017-12-07

申请号：US15538592

申请日：2015-12-30

申请人： ORANGE POWER LTD.

发明人： Young Tai Cho ,  Yong Gil Choi ,  Seung Chul Park ,  Seon Park ,  Hee Young Seo ,  Jee Hye Park ,  Yong Eui Lee ,  Chul Hwan Kim

IPC分类号： H01M4/38 ,  H01M4/04 ,  H01M4/62 ,  H01M4/02

摘要： The present invention relates to a silicon-based anode active material and a method for manufacturing the same. The silicon-based anode active material according to an embodiment of the present invention comprises: particles comprising silicon and oxygen combined with the silicon, and having a carbon-based conductive film coated on the outermost periphery thereof; and boron doped inside the particles, wherein with respect to the total weight of the particles and the doped boron, the boron is included in the amount of 0.01 weight % to 17 weight %, and the oxygen is included in the amount of 16 weight % to 29 weight %.

公开(公告)号：US20180083263A1

公开(公告)日：2018-03-22

申请号：US15561171

申请日：2016-03-25

申请人： ORANGE POWER LTD.

发明人： Young Tai Cho ,  Yong Gil Choi ,  Seung Chul Park ,  Seon Park ,  Hee Young Seo ,  Jee Hye Park ,  Yong Eui Lee ,  Chul Hwan Kim

IPC分类号： H01M4/134 ,  H01M4/58 ,  H01M4/62 ,  H01M10/052

摘要： The present invention relates to a silicon-based anode active material and a method of fabricating the same. The silicon-based anode active material according to an embodiment of the present invention comprises: particles comprising silicon and oxygen combined with the silicon, wherein a carbon-based conductive layer is coated with on outermost surface of the particles; and phosphorus doped in the particles, wherein a content of the phosphorus with respect to a total weight of the particles and the phosphorus doped in the particles have a range of 0.01 wt % to 15 wt %, and a content of the oxygen has a range of 9.5 wt % to 25 wt %.

公开(公告)号：US20170214042A1

公开(公告)日：2017-07-27

申请号：US15327744

申请日：2015-07-21

申请人： ORANGE POWER LTD.

发明人： Young Tai Cho ,  Yong Gil Choi ,  Seung Chul Park ,  Seon Park ,  Hee Young Seo ,  Jee Hye Park ,  Yong Eui Lee

IPC分类号： H01M4/36 ,  H01M4/62 ,  H01M4/38 ,  H01M4/48 ,  C01B33/02 ,  C01B33/113

摘要： The present invention relates to a method for preparing silicon-based active material particles for a secondary battery and silicon-based active material particles. The method for preparing silicon-based active material particles according to an embodiment of the present invention comprises the steps of: providing silicon powder; dispersing the silicon powder into an oxidant solvent to provide a mixture prior to grinding; fine-graining the silicon powder by applying mechanical compression and shear stress to the silicon powder in the mixture prior to grinding to produce silicon particles; producing a layer of chemical oxidation on the fine-grained silicon particles with the oxidant solvent while applying mechanical compression and shear stress to produce silicon-based active material particles; and drying the resulting product comprising the silicon-based active material particles to yield silicon-based active material particles.

公开(公告)号：US20170047580A1

公开(公告)日：2017-02-16

申请号：US15305763

申请日：2015-04-22

申请人： ORANGE POWER LTD.

发明人： Young Tai Cho ,  Seung Chul Park ,  Seon Park ,  Hee Young Seo ,  Jee Hye Park ,  Yong Eui Lee ,  Chul Hwan Kim

IPC分类号： H01M4/134 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/38

CPC分类号： H01M4/134 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/625 ,  H01M4/626 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2220/10 ,  H01M2220/20 ,  H01M2220/30

摘要： Provided is a negative active material and a lithium secondary battery including the negative active material. The negative active material for a secondary battery includes silicon particles, wherein circularities of the particles are determined by equation 1 below, and the circularities are 0.5 or greater and 0.9 or less, Circularity=2(pi×A)1/2/P  [Equation 1] where A denotes a projected area of the silicon particle that is two-dimensionally projected, and P denotes a circumferential length of the silicon particle that is two-dimensionally projected.

摘要翻译： 提供一种负极活性物质和包含负极活性物质的锂二次电池。 用于二次电池的负极活性材料包括硅颗粒，其中颗粒的圆形度由下面的等式1确定，并且圆形度为0.5以上且0.9以下，圆形度=2π×A 1/2 / P（其中A 表示二维投影的硅粒子的投影面积，P表示二维投影的硅粒子的周长。