LiNi_(0.8)Co_(0.2)O_2/MWNTs复合物超级电容器电极材料的研究  

Studies on LiNi_(0.8)Co_(0.2)O_2/MWNTs Composite Electrode Materials for Supercapacitors

作　　者：王贵欣[1,2] 周固民[1,2] 袁荣忠[1,2] 瞿美臻[1,2] 张伯兰[1,2] 于作龙[1,2] 

机构地区：[1]中国科学院成都有机化学研究所,成都610041 [2]中国科学院研究生院

出　　处：《无机化学学报》2005年第4期593-597,共5页Chinese Journal of Inorganic Chemistry

基　　金：中国科学院知识创新工程资助项目(No.KJCX1-06-04);宁波杉杉科技创业园有限公司委托项目。

摘　　要：Multiwalled carbon nanotubes (MWNTs) were used as the conductive additive in the electrode materials. The electrochemical properties of supercapacitors based on LiNi0.8Co0.2O2 / MWNTs composite and LiNi0.8Co0.2O2/acetylene black composite and MWNTs in 1.0 mol·L-1 LiClO4 / EC+DEC [V(EC)∶V(DEC)=1∶1] electrolyte were investigated by means of constant charge/discharge current tests, respectively. The experimental results show that the LiNi0.8Co0.2O2 / MWNTs composite has better performance than that of others, and the maximum specific capacitance of the supercapacitor can reach 271.6 F·g-1, while the energy density is up to 339.5 Wh·kg-1. Furthermore, it is remarkable that the performance of MWNTs is better than that of acetylene black as the conductive additive.Multiwalled carbon nanotubes (MWNTs) were used as the conductive additive in the electrode materials. The electrochemical properties of supereapacitors based on LiNi0.8Co0.2O2 / MWNTs composite and LiNi0.8CO0.2O2/ acetylene black composite and MWNTs in 1.0 mol-L-1 LiClO4/EC+DEC [V(EC):V(DEC) = 1:1] electrolyte were investigated by means of constant charge/discharge current tests, respectively. The experimental results show that the LiNi0.8Co0.2O2/MWNTs composite has better perfomance than that of others, and the maximum specific capacitance of the supercapacitor can reach 271.6 F-g(-1), while the energy density is up to 339.5 Wh-kg(-1). Furthermore, it is remarkable that the performance of MWNTs is better than that of acetylene black as the conductive additive.

关 键 词：LINI0.8CO0.2O2 碳纳米管 复合物 超级电容器 电极材料 功率 金属氧化物 

分 类 号：TM534[电气工程—电器] TB383[一般工业技术—材料科学与工程]