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Korean Chemical Engineering Research,
Vol.48, No.3, 292-299, 2010
Vol.48, No.3, 292-299, 2010
그래핀 및 그래핀 기반 나노복합체의 에너지저장소자용 전극 특성
Electrode Properties of Graphene and Graphene-Based Nanocomposites for Energy Storage Devices
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.
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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[Cited By]
참고문헌정보(참고문헌, 인용문헌)는 화학공학소재연구정보센터에 의해 제공되고 있습니다.