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基于过期废药急支颗粒碳化的锂离子电池氮掺杂碳微球负极材料
作者:邱进旭1 侯宏英1 刘显茜2  远1  境1  雷1 
单位:(1. 昆明理工大学材料科学与工程学院 昆明 650093 2. 昆明理工大学机电工程学院 昆明 650093) 
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 
分类号:O646
出版年,卷(期):页码:2019,47(3):0-0
DOI:
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3.5 μm,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 3.5 μm, 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.

基金项目:
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)。
作者简介:
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