화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.48, No.3, 292-299, June, 2010
Export Citation
그래핀 및 그래핀 기반 나노복합체의 에너지저장소자용 전극 특성
Electrode Properties of Graphene and Graphene-Based Nanocomposites for Energy Storage Devices
김광만†, 이영기, 김상욱1
  • 한국전자통신연구원 융합부품소재연구부문 전력제어소자팀, 305-700 대전광역시 유성구 가정로 138
  • 1한국과학기술원 신소재공학과, 305-701 대전광역시 유성구 과학로 335
Kwang Man Kim†, Young-Gi Lee, and Sang Ouk Kim1
  • 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
E-mail:
초록
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.
Keywords:Graphene Nanosheet;Graphite;Anode;Lithium-Ion Battery;Supercapacitor
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