碳纳米管纸作集流体在柔性锌锰电池中的应用  

Application of buckypaper as a current collector in flexible zinc-manganese battery

作　　者：付琦[1] 孙晓刚[1,2] 程晓圆 庞志鹏[1] 吴小勇[1] 

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)锂电及新能源汽车研究院,南昌330031

出　　处：《化工新型材料》2016年第3期232-234,共3页New Chemical Materials

基　　金：国家自然科学基金(60661001);江西省科技厅科研项目(2012ZBBE50012);江西省教育厅(KJLD13006)

摘　　要：研究了晶须状碳纳米管导电纸作为集流极对锌锰电池放电性能的影响。使用晶须状碳纳米管(MWCNTs),通过抽滤法制备出碳纳米管纸,利用扫描电子显微镜(SEM)对碳纳米管导电纸进行表征。碳纳米管导电纸作为柔性锌锰电池集流体,正极极片采用二氧化锰为活性材料,负极采用金属锌为电极,使用计算机控制精密电池测试仪测试其电化学性能。实验表明,柔性锌锰电池具有良好的机械柔性,弯曲状依旧保持电压稳定。与采用石墨为集流体的传统锌锰电池相比,在0.3mA恒流放电的情况下,碳纳米管纸作为集流体,锌锰电池的放电时间增加了64.2%,比容量提高186%,比能量提高172%。碳纳米管纸作为集流体的柔性锌锰电池表现出极佳优越性,并且碳纳米管纸的密度对电池放电性能有着较大的影响。Using multiwalled whisker carbon nanotubes（MWCNTs）to prepare buckypaper by CNT suspension method.Using scanning electron microscopy to test its surface features.And the discharge properties of the flexible zincmanganese battery used buckypaper as a current collector was tested by the computer controlled precision battery tester.The battery had a great mechanical flexibility and buckypaper was found to be more effective than the traditional current collector graphite.Discharge time was increased by 64.2%.Specific capacity and energy density were increased by 186%and 172%,respectively.The density of buckypaper also had a greater influence on discharge performance of the battery.

关 键 词：晶须状碳纳米管纸 柔性电池 锌锰电池 集流体 

分 类 号：TQ127.11[化学工程—无机化工] TM911.14[电气工程—电力电子与电力传动]