| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
콜로이드 및 분자조립 부문위원회 Ⅰ,Ⅱ |
| 제목 |
Advanced hydrophilic adhesive polymer binder for high-performance seawater batteries |
| 초록 |
Conventional hydrophobic binders [e.g., poly(vinylidene fluoride) (PvdF), Nafion] can cause various problems such as an unstable galvanostatic reaction and low power performance due to poor wettability toward seawater and adhesion property. The hydrophilic adhesive polymer binder is achieved using three moieties; (i) dopamine methacrylamide (DMA), (ii) Poly(ethylene glycol) (PEG), and (iii) Poly(ethylene glycol) diacrylate (PEGDA). The synthesized polymer showed excellent adhesion against carbon felt and Pt surface, measured by surface force apparatus (SFA). Moreover, the seawater battery with the polymer binder showed higher power and cycle stability compared to that of PvdF binder. The cross-section of carbon felt was imaged with transmission electron microscopy (TEM), which directly showed that the synthesized polymer binder prevents Pt/C from detachment and protection against carbon corrosion during the charge-discharge cycle. |
| 저자 |
최지은, 백명진, 위태웅, 임찬웅, 이현욱, 이동욱
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| 소속 |
울산과학기술원 |
| 키워드 |
Catchol; DOPA; hydrophilic binder; cathode; carbon corrosion; seawater battery
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| E-Mail |
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