锂离子电池正极材料LiNi_(1-x)Co_xO_2的合成及电化学性能研究

作     者：黄元乔 郭文勇 李道聪 彭正合 周运鸿 HUANG Yuan-qiao;GUO Wen-yong;LI Dao-cong;PENG Zheng-he;ZHOU Yun-hong

作者机构：武汉大学化学与分子科学学院 

出 版 物：《无机化学学报》 (Chinese Journal of Inorganic Chemistry)

年 卷 期：2005年第21卷第5期

页      面：736-740页

核心收录：

学科分类：0401[教育学-教育学] 04[教育学] 0808[工学-电气工程] 08[工学] 

基　　金：国家自然科学基金资助项目(No.29771025) 国家九五重点攻关项目(No.29833090)资助 

主　　题：锂离子电池 性能研究 正极材料 电化学 Ni(NO3)2 first 合成 normal and with the The was for ion raw XRD SEM 

摘      要：LiNi1-xCoxO2 cathode materials for lithium ion batteries were synthesized by the co-precipitation and solid-state reaction methods with LiOH·H2O, Ni(NO3)2·6H2O and Co(NO3)2·6H2O as raw materials. The materials were characterized by XRD, SEM and electrochemical tests. The results showed that synthesized cathode materials were with layered structure similar to α-NaFeO2 and uniform morphology and nearly normal grain size distribution and better electrochemical performance when x was 0.18. The first charge and discharge capacity of the cathode material was 224.3 mAh·g-1 and 194.2 mAh·g-1, respectively. 88.5% of the first discharge capacity remained at the 20th cycle.