CNTs对MH/Ni电池正极电化学性能的影响  

INFLUENCE OF CNTs ON THE ELECTROCHEMICAL PERFORMANCE OF THE MH/Ni BATTERY POSITIVE ELECTRODE

作　　者：陈其猛[1] 易双萍[1] 赵渺[1] 

机构地区：[1]广东工业大学物理与光电工程学院,广东广州510006

出　　处：《华南师范大学学报（自然科学版）》2009年第A01期90-92,共3页Journal of South China Normal University(Natural Science Edition)

基　　金：广东省自然科学基金资助项目(9151009001000052);广东省科技计划项目(2008B010600010;2006B14701009)

摘　　要：采用化学气相沉积法制备碳纳米管,将碳纳米管作为添加剂掺杂制备MH/Ni电池正极,研究了正极中添加不同含量在不同充放电制度下对电化学性能的影响.结果表明,在30 mA/g恒电流放电条件下,添加了碳纳米管的模拟电池放电性能并没有得到改善,而且比没有添加的要差些;但在60 mA/g恒电流放电条件下,添加碳纳米管的作用比较明显,添加量为质量分数1%的碳纳米管电化学性能较好,在第40和80次循环时放电容量分别为272.2mAh/g和260.3 mAh/g,而且放电平台比较平稳.CNTs was prepared by chemical vapor deposition method.It was used as additive to prepare the positive electrode of MH/Ni battery,and the influence of electrochemistry performance was investigated in positive electrode by adding the different contents at different charge/discharge systems.The results showed that the discharge performance of simulated battery doped CNTs has not been improved under 30 mA/g constant current discharge,and is slightly worse compared with those that do not add the contents.However,it was more obvious under 60 mA/g constant current discharge.The discharge capacity by adding 1% CNTs in the 40th and 80th cycle had 272.2 mAh/g and 260.3 mAh/g,respectively,and discharge platform was relatively stable.

关 键 词：碳纳米管 MH/NI电池 氢氧化镍电极 电化学性能 

分 类 号：TM912.2[电气工程—电力电子与电力传动]