公开(公告)号：US20120107686A1

公开(公告)日：2012-05-03

申请号：US13255577

申请日：2010-03-11

申请人： Kwang -Sun Ryu ,  Suk-Joon Park ,  Jik-Soo Kim ,  Kyung Shin ,  Young-Min Chung ,  Joeng-Hun Ju ,  Yu-Rim Bak

发明人： Kwang -Sun Ryu ,  Suk-Joon Park ,  Jik-Soo Kim ,  Kyung Shin ,  Young-Min Chung ,  Joeng-Hun Ju ,  Yu-Rim Bak

IPC分类号： H01M4/62 ,  H01M4/131

CPC分类号： H01M4/525 ,  C01G53/42 ,  C01P2002/52 ,  C01P2006/40 ,  H01M4/485 ,  H01M4/505 ,  H01M4/624 ,  H01M4/625 ,  H01M10/052

摘要： This invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same, and particularly to a positive electrode active material for a lithium secondary battery, in which a lithium composite oxide having a composition of LiNi1-xMxO2 (wherein M represents one or a combination of two elements selected from the group consisting of Co, Al, Mn, Mg, Fe, Cu, Ti, Sn and Cr, and 0.96≦x≦1.05) is surface-modified using carbon or an organic compound, thereby achieving superior stability and improved high-rate capability compared to conventional positive electrode active materials, and to a lithium secondary battery including the same.

摘要翻译： 本发明涉及锂二次电池用正极活性物质和锂二次电池用锂二次电池，特别涉及锂二次电池用正极活性物质，其中组成为LiNi 1-x M x O 2的锂复合氧化物 （其中M表示选自Co，Al，Mn，Mg，Fe，Cu，Ti，Sn和Cr中的一种或两种元素的组合，以及0.96和nlE; x＆nlE; 1.05）使用碳或 有机化合物，与常规的正极活性物质相比具有优异的稳定性和改善的高速率能力，并且与包含该正极活性物质的锂二次电池相比。