公开(公告)号：EP2698351B1

公开(公告)日：2017-12-27

申请号：EP12770752.9

申请日：2012-04-12

申请人： Toda Kogyo Corp.

发明人： IMAHASHI, Taiki ,  WATANABE, Hiroyasu ,  KIKUYA, Kazuhiko ,  SADAMURA, Hideaki

IPC分类号： C01G53/00 ,  H01M4/505 ,  H01M4/525

CPC分类号： C01D15/02 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2004/04 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/80 ,  H01M4/505 ,  H01M4/525

摘要： The present invention provides lithium composite compound particles having good high-temperature storage property and excellent cycle characteristics as an active substance for a non-aqueous electrolyte secondary battery, and a secondary battery using the lithium composite compound particles. The Li-Ni composite oxide particles for a non-aqueous electrolyte secondary battery according to the present invention have a BET specific surface area of 0.05 to 0.8 m 2 /g; an atomic ratio (Ma/Ni) of a concentration of an amphoteric metal to a concentration of Ni on an outermost surface of the respective Li-Ni composite oxide particles is 2 to 6; and the concentration of the amphoteric metal on the outermost surface of the respective Li-Ni composite oxide particles is higher than a concentration of the amphoteric metal at a position spaced by 50 nm from the outermost surface toward a center of the respective Li-Ni composite oxide particles.