Sb掺杂SnO_2修饰双电层电容活性炭电极的研究  

Sb-doped SnO2 modifying activated carbon electrode of the electric double-layer capacitors

作　　者：苏岳锋[1] 吴锋[1] 包丽颖[1] 陈实[1] 

机构地区：[1]北京理工大学化工与环境学院国家高技术绿色材料发展中心,北京100081

出　　处：《电子元件与材料》2007年第2期52-54,共3页Electronic Components And Materials

基　　金：国家基础研究重大项目前期研究专项资助项目(2001CCA05000);国家重点基础研究发展计划资助项目(2002CB11800)

摘　　要：应用sol-gel浸渍与热处理工艺相结合,在活性炭表面包覆Sb掺杂的SnO2薄膜对电极进行修饰,构成AC-SnO2/KOH/AC-SnO2双电层电容器,测试结果表明,400 mA/g电流密度条件下,修饰后的双电层电容器在0.001～1.5 V相对较高电压区间的放电容量,比AC/KOH/AC双电层电容器在0.001～1.0 V电压区间高36%,但AC-SnO2的单电极比电容仅为AC单电极比电容的91.9%;当电流密度大于400 mA/g,两种电极的大电流性能相当。The activated carbon was coated with a Sb-doped SnO2 thin film by a sol-gel dipping and heat treating process. Then the AC-SnO2/KOH/AC-SnO2 EDLC was assembled. The test results indicate that the discharge capacity of the EDLC using modified electrode at 0.001-1.5 V voltage range is 36 % higher than that of the AC/KOH/AC EDLC at 0.001-1.0 V voltage at a 400 mA/g current density. However, the specific capacitance of AC-SnO2 electrode is only about 91.9% of that of the AC electrode. When the current density is above 400 mA/g, the AC-SnO2 electrode and the AC electrode show a similar large current performance. ctrode; EDLC

关 键 词：电子技术 Sb掺杂SnO2 活性炭电极 双电层电容 

分 类 号：TM53[电气工程—电器]