| 학회 | 한국재료학회 |
| 학술대회 | 2016년 가을 (11/16 ~ 11/18, 경주 현대호텔) |
| 권호 | 22권 2호 |
| 발표분야 | C. 에너지 재료 분과 |
| 제목 | Electrochemical performance of all-solid-state-lithium-sulfur batteries(ASSLSBs) with sulfur-based cathodes prepared between Li2S-P2S5 amorphous solid electrolyte using mechanical milling. |
| 초록 | Elemental sulfur has been recognized as a cathode material owing to its large theoretical capacity of 1672 mAhg-1, low cost, and enviormental friendliness. Unfortunately, the sulfur has not been sufficiently utilized in lithium ion batteries with commercial liquid electrolytes because the lithium batteruies suffer from rapid capacity fading during cycling. The capacity fading during cycling results from polysulfides formed by the dissolution of sulfur in the organic liquid electrolytes. An alternative idea on how to eliminate the possibility of the problem is that all-solid-state cells using non-flammable inorganic solid electrolytes instead of the liquid electrolyte. however, poor cycle life of the all solid state lithium-sulfur batteries(ASSLSBs) could be ascribed to non-uniform distribution and agglomeration of the constituent particles due to the all solid state system. An attempt is made to improve the performance of the ASSLSBs by forming simultaneously sulfur-based cathode material between glass-like solid state electrolytes using the mechanical milling technique. Uniform distribution of the cathode materials within the fine powder electrolytes are appropriate for achieving balanced ionic/electronic conducting matrix in the ASSLSBs, and we confirmed that electrochemical performances of the ASSLSBs using the obtained powders. |
| 저자 | Jongyeop Park1, Sunho Choi1, Seunghyeon Son1, Chanhwi Park2, Dongwook Shin1 |
| 소속 | 1Department of Materials Science and Engineering hanyang Univ., 2Department of Materials science and Engineering hanyang Univ. |
| 키워드 | <P>Lithium sulfide; mechanical milling; lithium-sulfur battery</P> |
