| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
19권 2호 |
| 발표분야 |
나노_포스터 |
| 제목 |
Preparation of Silicon Nanoball Encapsulated with Graphene Shell by CVD and Electroless Plating Process |
| 초록 |
Carbon materials such as graphite have been widely used as the anode materials of secondary batteries. In spite of good stability, they are limited by low capacity. Silicon has a 4 times higher capacity than any other carbon material. It cannot be used, because it has a low stability caused by the volume expansion. In this study, we fabricated a silicon nanoball encapsulated with graphene(Si-GB) to overcome the mentioned problems. In order to form a core/shell structured graphene encapsulated silicon nanoball, The Si-GBs were made by electroless plating method CVD process. The Si-GBs were formed with a spherical void between the silicon particle and the graphene layer, by which it has a better safety against to volumetric change of anode during lithiation/delitiation of repeated charging-discharging in secondary betteries. Morphology of the Si-GB was observed by the FESEM and the FETEM to find core-shell structured nanoball. The Si-GB was investigated by the Raman, the X-ray Photoelectron Spectroscopy to identify graphene layer on the surface of the inner silicon core. |
| 저자 |
소대섭1, 박성진2, 허훈3, 김희진3
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| 소속 |
1한국과학기술정보(연), 2인하대, 3한국생산기술(연) |
| 키워드 |
graphene; silicon nanoball; encapsulate; CVD; secondaty battery
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| E-Mail |
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