摘要
通过一步归中反应同时回收含铜蚀刻废液与金属铜边角料得到CuCl四面体晶粒,并考察其电化学储锂性能。结果表明:四面体CuCl晶粒具有4个光滑的三角形表面及6个等长的棱;即使在10 C循环2000圈,CuCl负极的可逆放电比容量仍能稳定在101.8 mAh/g,高于同样条件下石墨负极的放电比容量,表现了良好的大倍率长循环储锂稳定性。该结果有助于推进废铜资源的循环经济模式和可持续能源的发展。
Waste Cu scraps and waste copper etchant were simultaneously recycled in the form of tetrahedron-like CuCl crystal via one-step facile comproportionation reaction,and its electrochemical Li-storage performance was also evaluated.The results show that the resultant tetrahedron-like CuCl crystals possess four smooth triangular surfaces and six isometric sides.CuCl-based anode delivers a reversible discharge capacity of 101.8 mAh/g even cycling at 10 C for 2000 cycles,which is greater than that of graphite anode under the same conditions,implying the satisfactory long term Li-storage cyclic stability at a high rate.These results could facilitate to promote the development of circular economy mode of waste Cu-based resources and sustainable energy.
作者
朱境
侯宏英
刘显茜
姚远
邱进旭
王雷
ZHU Jing;HOU Hongying;LIU Xianxi;YAO Yuan;QIU Jinxu;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
2020年第2期169-173,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)
云南省第十九批学术带头人资助项目.
关键词
氯化亚铜
废铜
蚀刻废液
锂离子电池
负极材料
回收
tetrahedron-like cuprous chloride
waste copper scraps
waste copper etchant
lithium ion battery
anode
recycle
作者简介
第一作者:朱境(1994—),男,硕士研究生;通信作者:侯宏英(1971—),女,教授,博士研究生导师。
