In the electrode fabrication of unit cell, it was ascertained that electrochemical characteristics were greatly increased with 90 wt.% of BP-20, 5 wt.% of Super P and 5 wt.% of mixed binder [P(VdF-co-HFP) : PVP =7 : 3] The self-discharge of unit cell showed that diffusion process was controlled by the ion concentration difference of initial electrolyte due to the characteristics of Electric Double Layer Capacitor (EDLC) charged by ion adsorption in the beginning, but this by current leakage through the double-layer at the electrode/electrolyte interface had a minor effect and voltages of curves were remained constant regardless of electrode material. The electrochemical characteristics of 2.3 V/3,000 F grade EDLC were as follows: 0.35 m of DC-ESR (100 A discharge), 0.14 mof AC-ESR (AC amplitude 100 mV), 2.80 Wh/kg (3.73 Wh/L) of energy density and 4.64 kW /kg (6.19 kW/L) of power density. Power output was compatible with electric vehicle applications, uninterrupted power supply and engine starter, in due consideration of Ragone relations.

Abstract
 1. 서론
 2. 실험 방법
  2.1. 실험재료 및 실험기기
  2.2. 단위셀의 제조
  2.3. 2.3 V/3,000 F급 supercapacitor 제조
 3. 실험결과 및 토론
  3.1 비정전용량
  3.2 Cyclic voltammogram
  3.3 자기방전
  3.4. 2.3 V /3,000 F급 supercapacitor의 전기적 특성
 4. 결론
 5. 참고문헌

• 허진우
• 강안수