摘要
研究了采用静电纺丝法制备NiCo_(2)O_(4)纳米纤维前驱体,并将煅烧后的NiCo_(2)O_(4)纤维用作锂离子电池负极材料,考察了其电化学性能。结果表明:质量比2∶1的Co(NO_(3))_(2)和Ni(NO_(3))_(2)经电纺可制备出直径约400 nm的NiCo_(2)O_(4)纳米纤维前驱体;以NiCo_(2)O_(4)纤维作负极材料的锂离子电池首次放电比容量为1141 mAh/g,100次循环后放电比容量约为415 mAh/g;电池内部成分电阻仅为3.77Ω,循环性能稳定。
Nanofiber NiCo_(2)O_(4) precursors were prepared by electrospinning,and the calcined NiCo_(2)O_(4) fibers were used as anode materials for lithium ion batteries,and their electrochemical performance were studied.The results show that NiCo_(2)O_(4) nanofiber precursors with a diameter of about 400 nm can be prepared by electrospinning with the weight ratio of cobalt nitrate to nickel nitrate of 2∶1.The first discharge capacity of the anode material is 1141 mAh/g,and the discharge capacity is about 415 mAh/g after 100 cycles.The internal component resistance of the battery is only 3.77Ωand the cycle performance is stable.
作者
邓庚凤
李志午
邓同生
李勇
刘锦平
DENG Gengfeng;LI Zhiwu;DENG Tongsheng;LI Yong;LIU Jinping(Department of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,China;Dongliang Aluminum Co.,Ltd.,Huzhou 313008,China)
出处
《湿法冶金》
CAS
北大核心
2023年第1期45-49,共5页
Hydrometallurgy of China
基金
国家自然科学基金资助项目(51564022)。
