期刊
ELECTROCHIMICA ACTA
卷 55, 期 1, 页码 311-315出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2009.08.057
关键词
LiFePO4/carbon composite; Rheological phase; Lithium-ion batteries; Stearic acid; Surfactant dispersion
资金
- National Nature Science Foundation of China [20573078, 29833090, 29771025]
LiFePO4/carbon composite was synthesized at 600 degrees C for 4 h in an At atmosphere by a stearic acid assisted theological phase method using amorphous nano-FePO4 as the iron source. XRD, SEM and TEM observations show that the LiFePO4/carbon composite has good crystallinity, ultrafine and well-dispersed particles of 60-150 nm size and in situ carbon coated on the surface of LiFePO4 crystallites. The synthesized LiFePO4/carbon composite shows a high discharge capacity of 160 mAh g(-1) and 155 mAh g(-1) at rates of 0.5 C and 1 C, respectively. Even at a high current density of 30 C, the material still presents a discharge capacity of 93 mAh g(-1) and exhibits an excellent cycling performance. (C) 2009 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据