| 학회 | 한국화학공학회 |
| 학술대회 | 2016년 가을 (10/19 ~ 10/21, 대전컨벤션센터) |
| 권호 | 22권 2호, p.2282 |
| 발표분야 | 재료 |
| 제목 | Characterization and Electrochemical Performance of Copper-antimony Based Alloy Composites for Lithium ion Storage |
| 초록 | Cu-Sb-Al2O3@C composite as an anode for lithium ion batteries has been prepared via high energy mechanical milling, where Cu-Sb active materials are dispersed in an inactive hybrid matrix comprised of Al2O3 and carbon. This matrix can accommodate large volume changes during cycling, resulting in good electrochemical performance. However, it reveals very large initial irreversible loss. The irreversible loss is caused by SEI formation, defect-site trapping of Li ions, and Li2O formation from surface oxides and unreacted precursors (Sb2O3). The introduction of an 8 hour heating step facilitates complete reduction of Sb2O3 and results in a drastic decrease in first cycle irreversibility with little effect on reversible capacity or cyclability. Keywords: lithium-ion batteries, copper-antimony alloys, hybrid matrix, composite anode |
| 저자 | Nguyen Tuan Loi, 김일태 |
| 소속 | 가천대 |
| 키워드 | 화공나노소재 |
| 원문파일 | 초록 보기 |
