摘要
通过水热和高温热解碳化联用的方法回收过期废药急支颗粒制备碳微球材料,并研究其微观形貌、元素组成及电化学储锂性能。结果表明:碳微球的平均粒径约为3.5μm,且少量氮元素以原位掺杂的形式保留;即使在高达7 A/g的电流密度循环充/放电500圈时,碳微球电极的可逆充电比容量仍为101 mA?h/g,表现了良好的高倍率充/放电循环稳定性。
The expired acute bronchitis granules were recycled via hydrothermal and pyrolysis carbonization to prepare carbon microspheres,and the corresponding micro-morphology,element composition and electrochemical performances were investigated.The results show that the mean particle size of carbon microspheres is 3.5μm,N element can be kept in the form of in-situ doping,and carbon microspheres anode delivers a reversible charge capacity of 101 mA?h/g even at a high current density of 7 A/g for 500 cycles,indicating a high stability during the fast cyclic charge/discharge.
作者
邱进旭
侯宏英
刘显茜
姚远
朱境
王雷
QIU Jinxu;HOU Hongying;LIU Xianxi;YAO Yuan;ZHU Jing;WANG Lei(Faculty of Material Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China;Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming 650093,China)
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2019年第3期320-324,共5页
Journal of The Chinese Ceramic Society
基金
国家自然科学基金资助项目(51566006和51363011)
教育部第46批留学归国科研启动基金资助项目(6488-20130039)
云南省高层次引进人才工作经费资助项目(10978125)
云南省第十九批学术带头人资助项目(1097-10978240)
昆明理工大学重点学科建设资助项目(14078232和14078311)
关键词
回收过期废药
急支颗粒
氮掺杂碳微球
负极
锂离子电池
reutilization of the expired drugs
acute bronchitis granules
N-doped carbon microspheres
anode material
lithium ion battery
