| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.525 |
| 발표분야 |
[주제 8] 에너지 저장 |
| 제목 |
A Study of the Effects of Additives on the Rheological and Electrochemical Characteristics for Solid Polymer Electrolytes (SPEs) and Suspensions |
| 초록 |
In this study, solid polymer electrolytes (SPEs) containing ionic liquids (ILs) and silica nanoparticles (SiNPs) were examined for fabricating the better performance of Li-ion batteries. ILs were added to enhance the electrochemical characteristics of SPEs by improving the mobility of polymer chains and acting as free charge carriers. SiNPs reduce polymer crystallinity without deterioration of mechanical property. To study the effects of additives on PEO-based SPEs, we examined the rheological characteristics of SPE suspensions by small amplitude oscillatory shear (SAOS) test and time sweep test. Cryogenic electron microscopy (cryo-EM) image analysis demonstrated the relationship between the concentration of ILs and SiNP aggregation. Additionally, the electrochemical property of SPE films were characterized by electrochemical impedance spectroscopy (EIS) measurement in SS/SPE/SS system. The reversibility of LiFePO4/SPE/Li batteries was evaluated by cyclic voltammetry (CV) in a range between 2.5 and 4.3 V vs. Li/Li+. |
| 저자 |
이주영, 이정현, 현규
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| 소속 |
부산대 |
| 키워드 |
이동현상(Transport Phenomena) |
| E-Mail |
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| 원문파일 |
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