电源技术2012，Vol.36Issue(10)：1448-1450,3.
焙烧条件对碳包覆天然石墨电化学性能的影响
Influence of roast conditions on electrochemical characterization of natural graphite coated by carbon
裴晓英 1张颖 1韩恩山 1汪大云2
作者信息
- 1. 河北工业大学化工学院,天津300130
- 2. 河北工业大学理学院,天津300130
- 折叠
摘要
Abstract
Natural graphite (NG) was modified by concentrated HNO3 used as oxidant, then coated it with C6HO7, and treated in a nitrogen gas atmosphere. The effects of two different roast conditions, i.e. roast temperature and roast time, on the performance of as coated materials were investigated. The structure and electrochemical performance of the prepared carbon-coated graphite were characterized by XRD and electrochemical performance testing to determine the best modification process. The results indicate that, when roasted at 600 t for 18 h, the sample has the better cycle performance, its initial discharge capacity is 492.6 mAh/g, and the specific capacity keeps 347.4 mAh/g after 10 cycles.关键词
锂离子电池/天然石墨/焙烧/柠檬酸/包覆Key words
lithium-ion batteries/ natural graphite/ roast/ citric acid/ carbon coating分类
信息技术与安全科学引用本文复制引用
裴晓英,张颖,韩恩山,汪大云..焙烧条件对碳包覆天然石墨电化学性能的影响[J].电源技术,2012,36(10):1448-1450,3.
