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| Type |
Poster Presentation |
| Area |
Electrochemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 18일 (목요일) 11:00~12:30 |
| Code |
ELEC.P-436 |
| Subject |
Novel Propionitrile based electrolyte system for electrochemical double layer capacitors to enhance cycle stability at 3.5V |
| Authors |
Thi Hoai Van Nguyen, Kyung-koo Lee1,*
Chemistry, KunSan National University, Korea
1Department of Chemistry, Kunsan National University, Korea
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| Abstract |
To increase the cyclic ability of a portable device such as electrochemical double layer capacitors (EDLCs), different electrolyte systems have been tested. Here, Propionitrile (PN) electrolyte has been investigated with different quaternary ammonium salts (TEABF4, SBPBF4, and SP2BF4) and compared with well-known commercial electrolyte acetonitrile (ACN). ACN has high power density and cycle life at an operative voltage 2.7-2.8 V but PN showed better performance and cyclic ability at a higher voltage (3.5 V). The electrochemical performances i.e. galvanostatic charge-discharge (GCD), cyclic voltammetry (CV) and physical properties i.e. ionic conductivity, viscosity of these two electrolytes was carried out in activated carbon electrode based coil cells. Although the decreased conductivity and increased viscosity were observed, PN significantly enhances the cyclic ability of EDLCs and exhibit excellent performance at high voltage (3.5V). |
| E-mail |
hoaivan9415@gmail.com |
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123rd General Meeting of the KCS