Modeling and simulating of a MEMS micro-supercapacitor

摘要：

　　The work presented here aims at developing a mathematical model of an asymmetric electrochemical capacitor including both DL and faradic process and validating the model by experimental data.Porous electrode theory,concentrated solution theory and mass transport theory are used in our model to simulate the electric potential and current distribution in the electrodes and the electrolyte.The Faradic current density is calculated according to Butler-Volmer equation and the double-layer current density is also taken into account.COMOSOL Multiphysics 4.2 software is used to solve the system of partial differential equations,in order to simulate the electrochemical reactions in the electrodes of the micro-supercapacitor dynamically.Charge and discharge curves,which have been validated by experimental data,are obtained and the movement of H+ ion is tracked to understand the electrochemical process.

关键词： micro-capacitor modeling of capacitor Comsol

作者: LU Wushuang WANG Xiaofeng LI Xiangyu Yin Yajiang YOU Zheng

作者单位: State key laboratory of precision measuring technology and instruments, Tsinghua University,Beijing, China;Department of Precision Instrument & Mechanology , Tsinghua University, Beijing, China

会议类型: 国际会议

会议名称: 中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)

会议地点: 杭州

会议语种:英文

页码: 1-5

在线出版日期: 2012-11-04（万方平台首次上网日期，不代表论文的发表时间）