Rate capability of lithium intercalation into nano-porous graphitized carbons

摘要：

Nano-porous graphitized carbons were successfully prepared by using mono-dispersed SiO2 colloidal crystal as a template and mesophase pitch as a carbon source with final heat treatment temperatures (IITT) of 1000-2500℃. Rate capability of lithium intercalation/de-intercalation of the nano-porous graphitized carbons was investigated. 35-60% of capacities were retained when the current density was increased from 37.2 mA g-1 to 372 mA g-1. Electrochemical impedance spectra indicated that formation of SEI layers caused increased polarization.

关键词： Lithium ion battery Porous carbon Graphite

作者: Hirotoshi Yamada Yuko Watanabe Isamu Moriguchi Tetsuichi Kudo

作者单位: Faculty of Engineering, Nagasaki University, 1-14, Bunkyo-machi, Nagasaki 852-8521, Japan Graduate School of Science and Technology, Nagasaki University, 1-14, Bunkyo-machi, Nagasaki 852-852 National Institute of Advanced Industrial Science and Technology, Tsukuba Central 2, 1-1-1, Umezono,

会议类型: 国际会议

会议名称: The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)

会议地点: 上海

会议语种:英文

页码: 1706-1709

在线出版日期: 2007-07-01（万方平台首次上网日期，不代表论文的发表时间）