摘要
采用机械合金化的方法制备了碳纳米管(CNTs)与LaNi5合金粉的复合贮氢材料,考察了球磨时间对复合材料微观结构及电化学性能的影响。球磨时间越长,CNTs断裂程度越高;球磨后,复合材料具有好的活化过程,并保持了相对较高的放电容量,1C放电容量为311 mAh/g(5%CNTs),3C放电容量为244 mAh/g(10%CNTs)。
Composite hydrogen storage materials of carbon nanotubes （CNTs） and LaNi5 were prepared by mechanical alloying method. The influence of ball milling time on micro structure and electrochemical performance of composite materials was studied. The CNTs broke seriously with bailing time increasing. The composite materials had a good activation process and remained relatively high discharge capacity after ball milling, the discharge capacities were 311 mAh/g （5% CNTs） and 244 mAh/g （ 10% CNTs） at 1 C and 3 C.
出处
《电池》
CAS
CSCD
北大核心
2006年第3期208-209,共2页
Battery Bimonthly
关键词
贮氢合金
碳纳米管
球磨
hydrogen storage alloy
carbon nanotubes
ball milling
