阳极
材料科学
静电纺丝
锂(药物)
碳纳米纤维
制作
纳米技术
化学工程
纳米纤维
电极
复合材料
碳纳米管
化学
聚合物
医学
替代医学
物理化学
病理
工程类
内分泌学
作者
R. Shanthappa,D. Narsimulu,Ashok Kumar Kakarla,Jae Su Yu
标识
DOI:10.1016/j.jallcom.2023.172606
摘要
The rich redox chemistry of vanadate-based materials makes them as a potential anode for the fabrication of advanced lithium-ion batteries (LiBs). However, poor conductivity as well as volume variation of vanadate-based anode materials hinders practical applications. Herein, magnesium vanadate (MgV3O8) incorporated carbon nanofibers (CNFs) (MgVO@CNFs) composites were prepared as a simple and scalable electrospinning technique, followed by pyrolysis. The synergistic effect of MgV3O8 and CNFs effectively offers a good conductive path and excellent integrity between the active particles with highly porous network. As an anode for LiBs, the MgVO@CNFs composite electrode material exhibited a good discharge capacity of 457 mA h g-1 (over 300 cycles) and 245 mA h g-1 (over 500 cycles) at 0.1 and 0.5 A g-1, respectively, and revealed excellent rate performance. The charge storage mechanism of MgVO@CNFs is contributed by both capacitive and diffusion-controlled behaviors. Consequently, this novel preparation process of the MgVO@CNFs may provide a new idea for the fabrication of different kinds of nanostructures for LiBs application.
科研通智能强力驱动
Strongly Powered by AbleSci AI