研究・研究者
研究会・セミナー
| 演 題 | 「Computer Simulation Study of Carbon-based Supercapacitors with an Ionic Liquid Electrolyte」 |
|---|---|
| 日 時 | 2015年11月20日(金) 17:00 |
| 講演者 | Prof. Hyung Kim (Carnegie Mellon University, USA) |
| 場 所 | 分子研研究棟2F 201号室 |
| 概 要 |
Electric double layer capacitors (EDLCs), or supercapacitors, are an important energy storage system that offers high power densities and reasonable energy densities. In this talk, we present highlights of our recent molecular dynamics computer simulation study to understand the capacitance behavior of supercapacitors based on carbon materials, in particular, activated microporous carbon and reduced graphene oxide. As an electrolyte, the ionic liquid, 1-ethyl-3-methylimidazolium tetrafluoroborate, is employed. The influence of pore size of the microporous electrodes on the specific capacitance is analyzed by employing carbon nanotube as a model system. Their anomalous capacitance behavior observed experimentally is explained in terms of the solvation effect of ions inside pores (“internal solvation”). In the case of reduced graphene oxide supercapacitors, the influence of the electrode oxidation on the electrolyte structure, cell voltage and capacitance is examined and compared with available experimental results. 講演者詳細：Prof. Hyung Kim |
| お問合せ先 |
対応者：斉藤 真司 |
