Synthesis of LiNixM1-xO2 (M=Co, Mn) precursor by ultrasonic spray pyrolysis and electrochemical property

被引：5

作者：

Ogihara, T

Ogata, N

Mizutani, N

机构：

[1] Fukui Univ, Fukui 910, Japan

[2] Tokyo Inst Technol, Meguro Ku, Tokyo 152, Japan

来源：

ELECTROCERAMICS IN JAPAN I | 1999年 / 157-1卷

关键词：

D O I：

10.4028/www.scientific.net/KEM.157-158.303

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Spherical, porous LiNixM1-xO2, (M=Co,Mn) precursor particles were prepared by ultrasonic spray pyrolysis. ICP analysis showed that the chemical composition of precursor powders was stoichiometry. The crystal phase of LiNixM1-xO2, (M=Co,Mn) was significantly influenced by the firing atmosphere and temperature and layered hexagonal structure with R3m space group was formed at 700 degrees - 800 under oxygen atmosphere. The dischargeable capacity of LiNixM1-xO2, (M=Co,Mn) was 140 - 200mAh/g in the voltage range between 2.5V and 4.3V. The higher discharge capacity and cycling performance more than LiNiO2 were achieved by addition of 5mol% Co.

引用

页码：303 / 308

页数：6

共 11 条

[1] A NEW VARIETY OF LICOO2 WITH AN UNUSUAL OXYGEN PACKING OBTAINED BY EXCHANGE-REACTION [J].