专利检索 ap:("GS Yuasa International Ltd.") AND inv:"Yusuke Mizuno" 第 1 页

1.

发明授权
Positive active material, positive electrode, nonaqueous electrolyte energy storage device, method of producing positive active material, and method of producing nonaqueous electrolyte 有权

公开(公告)号：US11276857B2

公开(公告)日：2022-03-15

申请号：US16965137

申请日：2019-02-01

申请人： GS Yuasa International Ltd.

发明人： Yusuke Mizuno

IPC分类号： H01M4/525 , C01G51/00 , H01M4/485 , H01M4/505 , H01M10/0525 , H01M4/02

摘要： One aspect of the present invention is a positive active material containing an oxide containing lithium and a transition metal element M, in which the transition metal element M is cobalt, iron, copper, manganese, nickel, chromium, or a combination thereof, and in an X-ray diffraction pattern of the oxide, a ratio (Ia/Ib) of peak intensity Ia appearing in a range where 2θ is 20 to 25° and peak intensity Ib appearing in a range where 2θ is 30 to 35° is 0.2 or more and 0.8 or less.