| 학회 | 한국공업화학회 |
| 학술대회 | 2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 | 24권 1호 |
| 발표분야 | 학생우수논문발표(석사과정) |
| 제목 | Development of carbon slurry cathode using mussel-inspired hydrophilic binder for seawater batteries |
| 초록 | Seawater batteries (SWBs) are promising energy storage systems using natural abundant seawater as the cathode material. However, battery performance is hindered due to the extremely slow kinetics of the cathode reaction (i.e. oxygen evolution reaction (OER) and oxygen reduction reaction (ORR)). While commercial binders (e.g. PVDF) have poor reaction kinetics due to the poor wettability with water because of their hydrophobic nature, hydrophilic slurry cathodes can noticeably improve the OER/ORR kinetics. Herein, we synthesized a DOPA-based hydrophilic binder (DB) and developed a slurry cathode using hydrophilic activated carbon powder (ACP) and the binder. The SWBs with DB-ACP cathode showed reduced voltage gap (0.62 V) and higher energy efficiency (94.5%) compared to hydrophilic activated carbon cloth (ACC) (1.74 V, 64.8%) and PVDF-ACP cathode (1.48 V, 84.5 %) after 100 cycles in a charge-discharge cycle test carried out at a current density of 0.1 mA cm-2 for 5 h. |
| 저자 | 성진수, 명민훈, 최지은, 백명진, 이동욱 |
| 소속 | 울산과학기술원(UNIST) |
| 키워드 | Seawater batteries; DOPA-based binder; hydrophilic; slurry cathode |
