公开(公告)号：US20160126548A1

公开(公告)日：2016-05-05

申请号：US14889577

申请日：2014-04-30

Applicant: BASF SE

Inventor： Simon SCHROEDLE ,  Oliver WAGNER ,  Kai DOERING ,  Aleksei VOLKOV

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

CPC classification number: H01M4/505 ,  C01G53/006 ,  C01G53/44 ,  C01P2004/61 ,  C01P2004/84 ,  C01P2006/11 ,  C01P2006/40 ,  H01M4/525

Abstract: Spherical particles comprising a lithiated mixed transition metal oxide comprising nickel, cobalt and manganese and optionally at least one further transition metal, each in cationic form, wherein the carbonate content, calculated as Li2CO3, is in the range from 0.01 to 0.3% by weight, based on overall particles, and the proportion of nickel, plotted against the radius of the particles in question, in the outer region of the particles is at least 10 mol % below the proportion in the core, and the manganese content, plotted against the radius of the particles in question, in the outer region of the particles is at least 10 mol % above the proportion in the core, and where mol % are based on the total transition metal content.

Abstract translation: 包含镍，钴和锰的锂化混合过渡金属氧化物和任选至少一种阳离子形式的另外的过渡金属的球形颗粒，其中以Li 2 CO 3计算的碳酸盐含量为0.01至0.3重量％ 基于总体颗粒，并且在颗粒的外部区域中相对于所述颗粒的半径绘制的镍的比例比芯中的比例低至少10摩尔％，并且锰含量相对于半径 的颗粒的外部区域比核心中的比例高至少10摩尔％，其中摩尔％基于总过渡金属含量。