Abstract
Recent years, supercapacitors have been attracting a growing attention as an efficient energy storage, due to their long-lifetime, device reliability, simple device structure and operation mechanism and, most importantly, high power density. Along with the increasing interest in flexible/stretchable electronics, the supercapacitors with compatible mechanical properties have been also required. A eutectic gallium-indium (EGaIn) liquid metal could be a strong candidate as a soft electrode material of the supercapacitors because of its insulating surface oxide layer for electric double layer formation. Here, we report the electrochemical study on the charging/reaction process at the interface of EGaIn liquid metal and electrolyte. Numerical fitting of the charging current curves provides the capacitance of EGaIn/insulating layer/electrolyte (~38 F/m 2 ). This value is two orders of magnitude higher than a capacitance of a general metal electrode/electrolyte interface
| Translated title of the contribution | Study on the Electrochemical Characteristics of a EGaIn Liquid Metal Electrode for Supercapacitor Applications |
|---|---|
| Original language | Korean |
| Pages (from-to) | 176-181 |
| Number of pages | 6 |
| Journal | 한국수소및신에너지학회논문집 |
| Volume | 27 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2016 |