| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 가을 (11/08 ~ 11/10, 부산 벡스코(BEXCO)) |
| 권호 |
21권 2호 |
| 발표분야 |
환경에너지_포스터 |
| 제목 |
Improvement of Electrochemical Performance of Vanadium Oxide Cathode Material by Hierarchically Structured Reduced Graphene Oxide |
| 초록 |
Hierarchically structured composite of Vanadium Oxide (V2O5)/reduced graphene oxide (rGO) was synthesis by facile mixing combined with ice-templating method and used as cathode material for lithium-ion battery. The physical properties and morphologies were investigated by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. The results suggested that V2O5 nanoparticles were maintained their crystal structure and chemical composition after composed with rGO. Hierarchically structured V2O5/rGO composite displays greater electrochemical performance compared to pristine V2O5 due to superior electrical conductivity, high surface area, fast ion diffusion and structural stability provided by conductive rGO matrix. The initial discharge capacity up to 375 mAh g-1 could be obtained as well as good rate capability. Our work may open up new method and material design for the improvement of lithium-ion battery cathodes. |
| 저자 |
puritut nakhanivej, 박슬기, 신강호, 박호석
|
| 소속 |
Sungkyunkwan Univ. |
| 키워드 |
Vanadium oxide; Reduced graphene oxide; Hierarchical structure; Lithium-ion batteries
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| E-Mail |
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