期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 130, 期 3, 页码 831-834出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2011.08.060
关键词
Lithium-ion batteries; Nanostructures; Coatings; Transmission electron microscope; Electrochemical properties
资金
- Energy Efficiency & Resources of the Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Korea government Ministry of Knowledge Economy (MKE) [2010 2020 100 330-11-1-000]
A new approach to investigate upon the electrochemical properties of Super P carbon black anode material is attempted and compared with conventional mesophase pitch-based carbon fibers (MPCFs) anode material for lithium-ion batteries. The prepared Super P carbon black electrodes are characterized using transmission electron microscope (TEM). The assembled 2032-type coin cells are electrochemically characterized by ac impedance spectroscopic and cyclic voltammetric methods. The electrochemical performance of charge and discharge was analyzed using a battery cycler at 0.1 C rate and cut-off potentials of 1.20 and 0.01 V vs. Li/Li+. The electrochemical test illustrates that the discharge capacity corresponding to Li intercalation into the Super P carbon black electrode is higher and coulombic efficiency is maintained approximately 84% at the end of the 20th cycling at room temperature. (C) 2011 Elsevier B.V. All rights reserved.
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