公开(公告)号：US20160111725A1

公开(公告)日：2016-04-21

申请号：US14979629

申请日：2015-12-28

Applicant: TODA KOGYO CORPORATION

Inventor： Manabu Yamamoto ,  Daisuke Nishikawa ,  Kazutoshi Ishizaki ,  Osamu Sasaki ,  Hideaki Sadamura

IPC: H01M4/58 ,  H01M10/0525

CPC classification number: H01M4/5815 ,  C01G53/006 ,  C01G53/54 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/45 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2220/30

Abstract: The present invention relates to positive electrode active substance particles comprising a compound having a spinel type structure comprising at least Li, Ni and Mn, and having an Li content which is controlled such that a molar ratio of Li(Ni+Mn) therein is 0.3 to 0.65, an Ni content of 5 to 25% by weight, an Na content of 0.05 to 1.9% by weight and an S content of 0.0005 to 0.16% by weight, a sum of the Na content and the S content being 0.09 to 1.9005% by weight. The positive electrode active substance particles according to the present invention can be suitably used as positive electrode active substance particles for non-aqueous electrolyte secondary batteries which can exhibit a high discharge voltage and an excellent discharge capacity.