静电纺丝法制备钴酸镍及其电化学性能试验研究  

Preparation of Nickel Cobaltate by Electrospinning and its Electrochemical Performance

作　　者：邓庚凤[1,2] 李志午 邓同生 李勇 刘锦平[1,2] 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)

机构地区：[1]江西理工大学材料冶金化学学部,江西赣州341000 [2]栋梁铝业有限公司,浙江湖州313008

出　　处：《湿法冶金》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)。

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.

关 键 词：静电纺丝法 制备 纳米纤维 NiCo_(2)O_(4) 前驱体 电化学性能 

分 类 号：TQ343.5[化学工程—化纤工业]