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Received February 10, 2010
Accepted March 8, 2010
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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그래핀 및 그래핀 기반 나노복합체의 에너지저장소자용 전극 특성

Electrode Properties of Graphene and Graphene-Based Nanocomposites for Energy Storage Devices

한국전자통신연구원 융합부품소재연구부문 전력제어소자팀, 305-700 대전광역시 유성구 가정로 138 1한국과학기술원 신소재공학과, 305-701 대전광역시 유성구 과학로 335
Research Team of Power Control Devices, Electronics & Telecommunications Research Institute (ETRI), 138 Gwahak-ro, Yuseong-gu, Daejeon 305-700, Korea 1Department of Material Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Gwahak-ro, Yuseong-gu, Daejeon 305-701, Korea
kwang@etri.re.kr
Korean Chemical Engineering Research, June 2010, 48(3), 292-299(8), NONE Epub 5 July 2010
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Abstract

그래핀(graphene)은 sp2 탄소원자들이 벌집 격자를 이룬 형태의 2차원 나노시트를 의미하며, 높은 비표면적(이론치 2600 m2 g-1)과 우수한 전기전도도(전형치 8×10^(5) S cm-1) 및 기계적 강도로 인해 리튬이온전지의 음전극 활물질 및 초고용량 커패시터의 전극 활물질로서 사용 가능성이 높아지고 있다. 본 총설에서는 현재까지 알려진 그래핀 나노시트와 그래핀을 기반으로 하는 나노복합체의 제조법을 소개하고, 이를 리튬이온전지와 초고용량 커패시터의 전극소재로 적용하였을 때의 특성을 그 나노구조적 관점과 연관하여 논의하였다.
Graphene is a two-dimensional nanosheet consisting of honeycomb lattices of sp2 carbon atoms. It is one of promising active materials for the anode of lithium-ion battery and the electrode of supercapacitor, due to its large specific surface area(theoretically 2600 m2 g-1), high electric conductivity(typically 8×10^(5) S cm-1), and mechanical strength. In this review, the synthetic methods of graphene nanosheet and graphene-based nanocomposite are introduced._x000D_ Also, the electrochemical properties obtainable when the graphene-based materials are adopted to the electrodes of lithium-ion battery and supercapacitor are discussed along with their nanostructures.

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