One-dimensional Li_(3)VO_(4)/carbon fiber composites for enhanced electrochemical performance as an anode material for lithium-ion batteries
作者机构：Department of ChemistryDong-A UniversityBusan 49315South Korea Department of Chemical Engineering(BK21 FOUR Graduate Program)Dong-A UniversityBusan 49315South Korea Department of Community and Environmental Resource PlanningUniversity of the Philippines Los BañosLos BañosLaguna 4031Philippines
出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)
年 卷 期：2023年第140卷第9期
页 面：142-152页
核心收录：
学科分类：0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
主 题：Lithium-ion batteries Anode materials Lithium vanadium oxide One-dimensional electrode Carbon fiber
摘 要：Lithium vanadium oxide(Li_(3)VO_(4))has gained attention as an alternative anode material because of its higher theoretical capacity(592 mAh g^(−1)),moderate ionic conductivity(∼10^(−4)S cm^(−1)),and lower working voltage range(∼0.5–1.0 V ***/Li^(+))in comparison to other metal ***,there are disadvantages to using Li_(3)VO_(4)as an anode material,such as low initial Coulombic efficiency and poor rate performance that is attributed to its low electronic conductivity(10^(−1)0 S cm^(−1)).In the present study,the synthesis of one-dimensional Li_(3)VO_(4)electrode was performed via a facile method by using oxidized vapor grown carbon fiber as a template and the formation of the outer shells of conductive carbon via chemical vapor deposition *** a half-cell configuration,the prepared Li_(3)VO_(4)composites exhib-ited an enhanced electrochemical performance with a reversible capacity of 516.2 mAh g^(−1)after 100 cycles at a rate of 0.5 C within the voltage range of 0.01–3.0 *** a high rate of 5 C,a large reversible capacity of 322.6 mAh g^(−1)was also observed after 500 *** full cell(LVO/VGCF16-C||LiCoO_(2))using LiCoO_(2)as the cathode showed competitive electrochemical performance,which demonstrates its high potential in commercial applications.
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