公开(公告)号：US09722243B2

公开(公告)日：2017-08-01

申请号：US14944411

申请日：2015-11-18

申请人： ILJIN ELECTRIC CO., LTD.

发明人： Cheol-Ho Park ,  Seon-Kyong Kim ,  Young-Pil Choi ,  Min-Hyun Kim ,  Myeong-Han Kim

IPC分类号： H01M4/38 ,  C22C45/00 ,  H01M4/134 ,  H01M10/052 ,  H01M4/02

CPC分类号： H01M4/386 ,  C22C45/00 ,  H01M4/134 ,  H01M10/052 ,  H01M2004/021

摘要： The present invention provides a negative active material for a secondary battery with an improved expansion rate, which is formed by a formula below, and in which an expansion rate of the negative active material after 50 cycles is 70 to 150%, and an amorphization degree on a matrix within an alloy has a range of 25% or more, and Si has a range of 60 to 70%, Ti has a range of 9 to 14%, Fe has a range of 9 to 14%, and Al has a range larger than 1% and less than 20%. Formula: SixTiyFezAlu (x, y, z, and u are at %, x: 1−(y+z+u)).

公开(公告)号：US20160149213A1

公开(公告)日：2016-05-26

申请号：US14944411

申请日：2015-11-18

申请人： ILJIN ELECTRIC CO., LTD.

发明人： Cheol-Ho Park ,  Seon-Kyong Kim ,  Young-Pil Choi ,  Min-Hyun Kim ,  Myeong-Han Kim

IPC分类号： H01M4/38

CPC分类号： H01M4/386 ,  C22C45/00 ,  H01M4/134 ,  H01M10/052 ,  H01M2004/021

摘要： The present invention provides a negative active material for a secondary battery with an improved expansion rate, which is formed by a formula below, and in which an expansion rate of the negative active material after 50 cycles is 70 to 150%, and an amorphization degree on a matrix within an alloy has a range of 25% or more, and Si has a range of 60 to 70%, Ti has a range of 9 to 14%, Fe has a range of 9 to 14%, and Al has a range larger than 1% and less than 20%. Formula: SixTiyFezAlu (x, y, z, and u are at %, x: 1−(y+z+u))

摘要翻译： 本发明提供一种具有改善的膨胀率的二次电池用负极活性物质，其由下式形成，其中负极活性物质在50个循环后的膨胀率为70〜150％，非晶化度 在合金中的基体上具有25％以上的范围，Si的范围为60〜70％，Ti为9〜14％的范围，Fe为9〜14％的范围，Al为 范围大于1％且小于20％。 公式：SixTiyFezAlu（x，y，z和u在％，x：1-（y + z + u））