基本信息:
- 专利标题： Cathode active material and a lithium secondary battery having the same
- 申请号：JP2013529059 申请日：2011-09-15
- 公开(公告)号：JP5601740B2 公开(公告)日：2014-10-08
- 发明人： スン−キュン・チャン , シン・ヨン・パク , ジンヒュン・リム , ホン・キュ・パク
- 申请人： エルジー・ケム・リミテッド
- 专利权人： エルジー・ケム・リミテッド
- 当前专利权人： エルジー・ケム・リミテッド
- 优先权： KR20100091342 2010-09-17
- 主分类号： H01M4/525
- IPC分类号： H01M4/525 ; H01M4/36 ; H01M4/505
摘要：
Disclosed is a cathode active material for secondary batteries comprising one or more compounds having a layered-crystal structure, represented by the following Formula 1, wherein a transition metal layer contains Li, in an amount lower than 20%, based on a total amount of a transition metal site, and a ratio of Ni positioned in a lithium layer, that is, a cation mixing ratio is 1% to 4.5%, based on a total amount of a lithium site in the lithium layer to stably support the layered-crystal structure. €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ(1-s-t)[Li(Li a Mn (1-a-x-y) Ni x Co y )O 2 ]*s[Li 2 CO 3 ]*t[LiOH]€ƒ€ƒ€ƒ€ƒ€ƒ(1) wherein 0