| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
19권 2호 |
| 발표분야 |
전기화학_포스터 |
| 제목 |
Electrochemical Properties of NiCo2O4 Spherical Clusters for Lithium Ion Batteries |
| 초록 |
The NiCo2O4 spherical cluster are prepared by hydrothermally treating microspheres comprised of metal precursors (nickel nitrate and cobalt nitrate) encapsulated on the surfaces of glucose-based carbon spheres as the template, followed by the calcination at 600 oC. The nanostructured NiCo2O4 spherical cluster with spinel structure show high capacitance. Because of its spinel structure, nickel cobaltite has high electronic conductivity which allows easy electron flow. Each of spherical metal oxide grains offer increased electrochemical reaction sites compared with its raw crystal form. Additionally, the abundant voids generated by decomposition and removal of the carbon spheres as the template have an effect on the prevention of the volume expansion. These voids play an important role in maintaining the nanostructures during lithiation and delithiation. Therefore, that nano-sized spherical NiCo2O4 electrode demonstrates high electrochemical performance. |
| 저자 |
이완진1, 신하은2
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| 소속 |
1Faculty of Applied Chemical Engineering, 2Chonnam National Univ. / Alan MacDiarmid Energy Research Institute |
| 키워드 |
electrode; battery; nano structure; carbon
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| E-Mail |
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