以电解二氧化锰/多壁碳纳米管/纸纤维复合材料作集流体和正极片的高能量柔性锌锰电池  

High Capacity Flexible Zinc-Manganese Battery Using Electrolytic Manganese/Multiwalled Carbon Nanotubes/Paper Fiber Composite as Current Collector and Cathode

作　　者：刘珍红 孙晓刚[1,2] 庞志鹏[1] 吴小勇[1] 聂艳艳[1] 岳立福 

机构地区：[1]南昌大学机电工程学院,南昌330031 [2]南昌大学(宜春)锂电及新能源研究院,南昌330031

出　　处：《材料导报》2016年第20期17-20,共4页Materials Reports

基　　金：江西省科技厅科研项目(20142BBE50071);江西省教育厅(KJLD13006)

摘　　要：以电解二氧化锰(EMD)为正极活性材料,多壁碳纳米管(MWCNTs)为导电剂,纸纤维为基体制得复合纸,并将复合纸代替石墨片集流体和正极片应用于柔性锌锰电池。采用扫描电子显微镜对复合纸进行表征,并通过恒流放电测试其放电性能。结果显示,采用复合纸的电池放电比容量是传统锌锰电池的3倍,使EMD利用率从7.4%提高到43.8%,且在较大电流放电和弯曲放电情况下仍能保持明显的放电性能优势。Using electrolytic manganese dioxide（EMD）as cathode active material,multiwalled carbon nanotubes（MWCNTs）as conductive agent and paper fiber as matrix,a kind of composite paper was prepared and used as a substitutive current collector（for graphite tape）and cathode in flexible zinc-manganese batteries.The composite paper was observed by scanning electron microscopy（SEM）,and the discharge performances of the batteries were tested by the galvanostatic discharge test.The results showed that cells fabricated using the composite paper obtained a high specific capacity,2 times larger than traditional Zn-Mn battery,accompanied by an increment of EMD utilization coefficient from 7.4%to 43.8%.Besides,the cells still maintained excellent discharging performance under high discharging current rate and bending condition.

关 键 词：复合纸 柔性电池 碳纳米管 集流体 锌锰电池 

分 类 号：TM911.14[电气工程—电力电子与电力传动]