Doped and island-covered lithium cobaltite oxides

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专利权人:

Umicore

发明人:

Paulsen Jens,Blangero Maxime

申请号：

US201514855478

公开号：

US9614220(B2)

申请日:

2015.09.16

申请国别(地区):

美国

年份:

2017

代理人:

Brinks Gilson & Lione

摘要：

Disclosed is a cathode active material and a method to produce the same at low cost. The cathode powder comprises modified LiCoO2, and possibly a second phase which is LiM′O2 where M′ is Mn, Ni, Co with a stoichiometric ratio Ni:Mn≧1. The modified LiCoO2 is Ni and Mn bearing and has regions of low and high manganese content, where regions with high manganese content are located in islands on the surface. The cathode material has high cycling stability, a very high rate performance and good high temperature storage properties.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/