锰基金属有机骨架复合CNT电极的制备及其储锂性能  

Preparation of Manganese-Based Metal-Organic Framework Composite CNT Electrode and Its Lithium Storage Properties

作　　者：王亚清 苏芸 李娜 都玲玲 王斌 Wang Yaqing;Su Yun;Li Na;Du Lingling;Wang Bin(School of Physics and Electronic Engineering,Xinxiang University,Xinxiang 453000,China;School of 3D Printing,Xinxiang University,Xinxiang 453000,China)

机构地区：[1]新乡学院物理与电子工程学院,河南新乡453000 [2]新乡学院3D打印学院,河南新乡453000

出　　处：《微纳电子技术》2024年第9期11-17,共7页Micronanoelectronic Technology

基　　金：新乡学院博士启动基金(1366020150,1366020149)。

摘　　要：为了制备出高性能的锂离子电池负极材料,以1,4-二氰基苯、碳纳米管(CNT)和氯化锰为原料,通过溶剂热法成功合成了一种新型锰基金属有机框架复合碳纳米管(Mn-MOF/CNT)材料。通过扫描/透射电子显微镜(SEM/TEM)、X射线衍射仪(XRD)和比表面积分析仪研究了Mn-MOF/CNT的结构和形貌。将Mn-MOF/CNT用作锂离子电池负极材料,表现出较好的储锂性能。Mn-MOF/CNT负极材料在0.1 A·g^(-1)的电流密度下,首圈循环的充电比容量达到1143 mA·h·g^(-1),经过100圈循环后,充电比容量还能保持787 mA·h·g^(-1)。同时,Mn-MOF/CNT负极材料展现出了优异的倍率性能,经过10 A·g^(-1)的大电流密度循环后,电流密度再恢复到0.1 A·g^(-1)时,其充电比容量仍然可以恢复到729 mA·h·g^(-1)。因此该新型Mn-MOF/CNT负极材料具有潜在的商业化前景。To prepare high-performance lithium-ion battery anode materials,a new manganesebased metal organic framework composite carbon nanotubes(Mn-MOF/CNT)material was successfully synthesized by solvothermal method using 1,4-dicyanobenzene,carbon nanotubes and manganese chloride as raw materials.The structure and morphology of Mn-MOF/CNT were studied by scanning/transmission electron microscope(SEM/TEM),X-ray diffractometer(XRD)and specific surface area analyzer.Mn-MOF/CNT was used as anode material for lithiumion batteries and showed good lithium storage performance.At a current density of 0.1 A·g^(-1),the charge specific capacity of Mn-MOF/CNT anode material in the first cycle reaches 1143 mA·h·g^(-1).After 100 cycles,the charge specific capacity can still maintain 787 mA·h·g^(-1).At the same time,the Mn-MOF/CNT negative electrode material shows excellent rate performance.After cycling at a high current density of 10 A·g^(-1),when the current density is restored to 0.1 A·g^(-1),its charge specific capacity can still be restored to 729 mA·h·g^(-1).Therefore,the new Mn-MOF/CNT negative electrode material has potential commercial prospects.

关 键 词：负极材料 锂离子电池 锰基金属有机骨架(Mn-MOF) 电化学性能 碳纳米管(CNT) 

分 类 号：TQ15[化学工程—电化学工业]