학회 | 한국화학공학회 |
학술대회 | 2011년 가을 (10/26 ~ 10/28, 송도컨벤시아) |
권호 | 17권 2호, p.1575 |
발표분야 | 에너지 |
제목 | Electrochemical performance of Fe or Cu/graphene composites as anode materials for lithium ion batteries |
초록 | Recently, transition metal oxides (MO, M = Fe, Cu, Sn, etc) have been attracted as one of the most candidates because of their high theoretical capacities and energy densities. However, a huge volume change with agglomeration of the metals during lithium ion insertion and extraction leads to mechanical stresses on the electrodes and result in a rapid capacity fading and poor cyclic performance. To overcome these problems, one possible way is to disperse nan-sized transition metal oxide particles onto carbon supports such as graphite, graphene, etc. In the presentation, nano-sized Fe and Cu particles supported on graphene were synthesized via a chemical reduction method using ethylene glycol(EG). The morphologies and phase structures of the nano-sized Fe/Graphene and Cu/Graphene particles are thoroughly investigated using X-ray diffractometer (XRD), field emission scanning electron microscopy (FE-SEM), and so on. We also perform several electrochemical tests: coin-half cell test, CV, impedence. |
저자 | 정재훈1, 오은석1, 정동원1, 한상욱1, 김광현1, 공병선2 |
소속 | 1울산대, 2KCC |
키워드 | |
원문파일 | 초록 보기 |