title: Porous nitrogen-doped carbon microspheres as anode materials for lithium ion batteries.
abstract: Nitrogen-doped carbon microspheres (NCSs) were fabricated via a simple, fast and energy-saving microwave-assisted method followed by thermal treatment under an ammonia atmosphere. NCSs thermally treated at different temperatures were investigated as anode materials for lithium ion batteries (LIBs). The results show that NCSs treated at 900 °C exhibit a maximum reversible capacity of 816 mA h g(-1) at a current density of 50 mA g(-1) and preserve a capacity of 660 mA h g(-1) after 50 cycles, and even at a high current density of 1000 mA g(-1), a capacity of 255 mA h g(-1) is maintained. The excellent electrochemical performance of NCSs is due to their porous structure and nitrogen-doping. The present NCSs should be promising low-cost anode materials with a high capacity and good cycle stability for LIBs.
authors.affiliation: Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, Shanghai Key Laboratory of Magnetic Resonance, Department of Physics, East China Normal University, Shanghai 200062, China. lkpan@phy.ecnu.edu.cn.
authors.forename: Taiqiang
authors.initials: T
authors.lastname: Chen
authors.forename: Likun
authors.initials: L
authors.lastname: Pan
authors.forename: T A J
authors.initials: TA
authors.lastname: Loh
authors.forename: D H C
authors.initials: DH
authors.lastname: Chua
authors.forename: Yefeng
authors.initials: Y
authors.lastname: Yao
authors.forename: Qun
authors.initials: Q
authors.lastname: Chen
authors.forename: Dongsheng
authors.initials: D
authors.lastname: Li
authors.forename: Wei
authors.initials: W
authors.lastname: Qin
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Sun