| 학회 | 한국재료학회 |
| 학술대회 | 2017년 가을 (11/15 ~ 11/17, 경주 현대호텔) |
| 권호 | 23권 2호 |
| 발표분야 | 14. 에너지 저장 및 하베스팅 특별심포지엄(Energy storage and harvesting special symposium) |
| 제목 | Li+ and Na+ ion superionic conductors for all-solid-state batteries |
| 초록 | Recently, all-solid-state batteries using inorganic solid electrolytes (SEs) have emerged because of their ultimate safety as well as the potential of high energy density. Particularly, bulk-type all-solid-state batteries are highly promising because thick composite electrodes can be fabricated by scalable wet-slurry process. Among various SE candidates, sulfide materials are suitable for bulk-type all-solid-state batteries owing to their exceptionally high ionic conductivities (max. 10-2 S cm-1) and deformability that allows two-dimensional contacts with active materials by simple cold-pressing process. While the most previous R&D efforts focused on high ionic conductivity of SEs, there are also other important aspects that should be addressed to develop high-performance bulk-type all-solid-state batteries; new synthesis protocols, chemical stability such as air stability, fabrication of sheet-type electrodes. Recently, our group reported solution-based processing of SE materials for Li and Na ion SEs. And the solution-processing of SEs was demonstrated to apply for the coating on active materials and infiltration into conventional lithium-ion battery electrodes. In this presentation, the relevant results on all-solid-state Li and Na-ion batteries will be presented. References 1. Y. S. Jung, D. Y. Oh, Y. J. Nam, K. H. Park, Israel J. Chem. 2015, 55, 472. 2. K. H. Park, D. Y. Oh, Y. E. Choi, Y. J. Nam, L. Han, J.-Y. Kim, H. Xin, F. Lin, S. M. Oh, Y. S. Jung, Adv. Mater. 2016, 28, 1874. 3. A. Banerjee, K. H. Park, J. W. Heo, Y. J. Nam, C. K. Moon, S. M. Oh, S.-T. Hong, Y. S. Jung, Angew. Chem. Int. Ed. 2016, 55, 9634. 4. D. H. Kim, D. Y. Oh, K. H. Park, Y. E. Choi, Y. J. Nam, H. A. Lee, S.-M. Lee, Y. S. Jung, Nano Lett. 2017, 17, 3013. |
| 저자 | 정윤석 |
| 소속 | UNIST |
| 키워드 | <P>batteries; solid electrolytes; conductivities; solid-state batteries; solution-processes</P> |
