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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.12
- 수록면
- 127 - 137 (11page)
- DOI
- 10.11629/jpaar.2019.15.4.127
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초록· 키워드
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Recently, high electrochemical performance anode materials for lithium ion secondary batteries are of interest. Here, we present silicon-carbon-graphene (Si-C-GR) composites for high performance anode materials of lithium ion secondary battery (LIB). Aerosol process and heat-treatment were employed to prepare the Si-C-GR composites using a colloidal mixture of silicon, glucose, and graphene oxide precursor. The effects of the size of the silicon particles in Si-C-GR composites on the material properties including the morphology and crystal structure were investigated. Silicon particles ranged from 50 nm to 1 μm in average diameter were employed while concentration of silicon, graphene oxide and glucose was fixed in the aerosol precursor. Morphology of as-fabricated Si-C-GR composites was generally the shape of a crumpled paper ball and the Si particles were well wrapped in carbon and graphene. The size range of composites was about from 2.2 to 2.9 μm. The composites including silicon particles larger than 200 nm in size exhibited higher performance as LIB anodes such as capacity and coulombic efficiency than silicon particles less than 100 nm, which were about 1500 mAh/g at 100 cycles in capacity and 99% in coulombic efficiency, respectively.
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참고문헌 (28)
참고문헌 신청
Ashuri, M. / 2016 / Silicon as a potential anode material for Li-ion batteries : where size, geometry and structure matter / Nanoscale 8:74~103
Bao, Z. H. / 2007 / Chemical reduction of three-dimensional silica micro-assemblies into microporous silicon replicas / Nature 446:172~175
Beaulieu, L. Y. / 2001 / Colossal Reversible Volume Changes in Lithium Alloys / Electrochemical Solid State Letters 4:A137~A140
Cai, H. / 2017 / Self-standing silicon-carbon nanotube/graphene by a scalable in situ approach from low-cost Al-Si alloy powder for lithium ion batteries / Journal of Physics and Chemistry Solid 109:9~17
Chan, C. K. / 2010 / Solution grown silicon nanowires for lithium-ion battery anodes / ACS Nano 4:1443~1450
Bao, Z. H. / 2007 / Chemical reduction of three-dimensional silica micro-assemblies into microporous silicon replicas / Nature 446:172~175
Beaulieu, L. Y. / 2001 / Colossal Reversible Volume Changes in Lithium Alloys / Electrochemical Solid State Letters 4:A137~A140
Cai, H. / 2017 / Self-standing silicon-carbon nanotube/graphene by a scalable in situ approach from low-cost Al-Si alloy powder for lithium ion batteries / Journal of Physics and Chemistry Solid 109:9~17
Chan, C. K. / 2010 / Solution grown silicon nanowires for lithium-ion battery anodes / ACS Nano 4:1443~1450
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