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|
| Type |
Poster Presentation |
| Area |
Environmental Energy |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 19일 (목요일) 11:00~12:30 |
| Code |
ENVR.P-521 |
| Subject |
Study on Electrical Energy Storage System for Supplying with Environmental System |
| Authors |
CHANSOO CHOI
Department of Applied chemistry, Daejeon University, Korea |
| Abstract |
Among the various conducting polymers, polyaniline (PANI) has received a lot of attention due to their high conductivity, good redox reversibility and environmental stability. To explore a cheap and durable power source for environmental use, polyaniline was prepared by chemical polymerization in an aqueous solution, and was tested as the cathode of a zinc-polyaniline battery with electrolyte containing 0.25 M ZnCl2, 0.5 M NH4Cl, 0.4 M H3BO3 (pH 4.0). The zinc-polyaniline battery was charged and discharged at a constant current. During the charging and discharging process, lead metal increased performance more than cadmium metal because of increasing overvoltage for the reduction of H+ ions in the electrolyte. When the lead metal ion concentration was 20 ppm, zinc metal could be protected from corrosion in the aqueous acidic electrolyte. And the lead metal could improve the specific capacity of the zinc-polyaniline battery. The maximum specific capacity of 100.0 mAh/g and the coulombic efficiency of 140.1% were achieved, respectively. The battery energy efficiency was calculated to be at least 97.0%. |
| E-mail |
cse110@dju.ac.kr |
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120th General Meeting of the KCS