基于碳材料和二氧化锰的复合型超级电容器性能研究
上传时间:2010/3/17 15:46:10
摘要:利用碳材料廉价、高比电容、易制取等独特优点,通过优化组合活性炭、碳纳米管和二氧化锰材料的配比,制备碳基复合电极材料。根据循环伏安、交流阻抗和恒流充放电等实验测试,结果显示由上述复合电极组装的电化学超级电容器具有较高的功率密度和能量密度,并具有适用于大电流放电的频率特性和阻抗特性。经过若干次的充放电后,电容仍呈现出良好的循环特性。因此得出,由该炭基复合电极材料组成的超级电容器是一种理想的储能器件。
叙词:碳材料 超级电容器 储能器件
Abstract:Since the carbon material has the advantage such as: cheapness, high specific capacitance and easy to produce. A carbon based electrode material was made via a optimized proportion of active carbon, carbon nano-tubes and MnO2.The results of cyclic voltammetry and alternate current impedance spectroscopy and charge-discharge demonstrate the capacitor made by the composite electrodes have large power density and energy density, and have perfect frequency and impedance characteristics for high-current charge and discharge. The capacitor still has an excellent circulation property after many cycles of charge-discharge. As a result this carbon based super-capacitor is a kind of good device for energy storage.
Keyword:Carbon material, Super-capacitors, Energy storage
说明:本站会员正确输入用户名和密码进行登录系统后才能查看文章详细内容和参与评论。
--本文摘自《电源世界》,已被阅读2114次
免责声明:本文仅代表作者个人观点,与电源在线网无关。其原创性以及文中陈述文字和内容未经本站证实,对本文以及其中全部或者部分内容、文字的真实性、完整性、及时性本站不作任何保证或承诺,请读者仅作参考,并请自行核实相关内容。
投稿热线 :0755-82905460 邮箱 :news@cps800.com