Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面

中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 15    No. 4    August 2005

[PDF Download]        

    

Synthesis of LiCoxNi1-xO2 cathode materials from electrolysis Co-Ni alloys
YE Mao(叶 茂)1, WEI Jin-ping(魏进平)1, CAO Xiao-yan(曹晓燕)2
ZHAI Jin-ling(翟金玲)1, WANG Xiao-yu(王晓宇)1
SUN Xin(孙 欣)

1. Institute of New Energy Material Chemistry, Nankai University, 
Tianjin 300071, China; 
2. College of Chemistry and Chemical Engineering, Ocean University of China, 
Qingdao 266003, China

Abstract: The LiCoxNi1-xO2 (x=0.2, 0.5 and 0.8) cathode materials were synthesized by sintering the mixtures of lithium salt and CoxNi1-x(OH)2 (x=0.2, 0.5 and 0.8) which were achieved from corresponding CoxNi1-x alloys by electrolysis technique. The structure and electrochemical characteristics of the obtained LiCoxNi1-xO2 were studied by XRD, SEM, PSCA and charge-discharge cycling test. The results show that the electrochemical capacities of the LiCoxNi1-xO2 (x=0.2, 0.5 and 0.8) materials are improved with the increase of the Ni content. The electrochemical performance of LiCo0.2Ni0.8O2 made in oxygen atmosphere has higher charge-discharge capacity and better cycleability compared with the one made in air atmosphere.

 

Key words: cathode materials; electrolysis; LiCoxNi1-xO2; Co-Ni alloys  

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱:f_ysxb@163.com