氟化多壁碳纳米管制备与电化学性能  

Structure and Discharge Performance of Multi-walled Carbon Nanotube Fluoride

作　　者：黄萍[1] 刘志超[1] 卢嘉春[1] 方荃[1] 朱敏华[1] 

机构地区：[1]西北核技术研究所,陕西西安710024

出　　处：《材料保护》2013年第S2期56-57,共2页Materials Protection

基　　金：国家科技部863计划项目(2012AA052202)

摘　　要：氟化碳作为一种高储能材料广泛用于一次锂电池中,不同碳源制得的氟化碳材料电化学性能存在差异。研究了多壁纳米碳管的氟化温度及其对氟化产物电化学性能的影响。结果表明:多壁碳纳米管在450℃时即开始氟化,并随着氟化温度的提高,氟化程度提高;氟化温度在580℃以上时氟化产物有较好的电化学性能,放电平台在2.5 V左右,放电比容量接近理论值。Li/carbon fluoride( CF x) cells are well known to have high energy density,good reliability,long shelf life,high safety and wide operation temperature. Multi-walled carbon nanotube( MWCNT) is a valuable materials to be fluoridated to a good energy keeper because of its particular structure. The XRD and IR spectra show that the fluoride which is synthesized at580 ℃ has high fluorine content, good discharge flat at2.5 V,and its special capacity is close to theoretical value.

关 键 词：多壁纳米碳管 氟化 XRD 红外光谱 电化学性能 

分 类 号：TB383.1[一般工业技术—材料科学与工程]