| 학회 | 한국화학공학회 |
| 학술대회 | 2020년 가을 (10/14 ~ 10/16, e-컨퍼런스) |
| 권호 | 26권 1호, p.909 |
| 발표분야 | Highly Cited Researcher 특별 심포지엄 |
| 제목 | Promises and Challenges of Na-Ion Batteries |
| 초록 | Na-ion batteries have been considered a promising candidate to replace Li-ion batteries for large-scale energy storage systems because of their low cost compared to Li-ion batteries. However, current Na-ion batteries have slightly lower energy densities than Li-ion batteries. The energy density limitations offset the cost savings due to the use of Na+ as a charge carrier. As a result, the cost per energy ($/Wh) of current Na-ion batteries is not attractive yet. Therefore, it is necessary to improve the energy density of Na-ion batteries by developing high-capacity electrode materials with appropriately redox potentials. In this presentation, we introduce promising high-capacity electrode materials that our group has recently developed. In particular, we demonstrate the reaction and failure mechanisms of phosphate- and oxide-based cathode materials and phosphorus-based anode materials. Our findings will provide fundamental insights into strategies to improve the electrochemical performance of Na-ion batteries. |
| 저자 | Kyu Tae Lee |
| 소속 | Seoul National Univ. |
| 키워드 | Na-ion battery; Cathode; Anode; Reaction mechanism |
| 원문파일 | 초록 보기 |
