title: High Rate, Long Lifespan LiV3O8Nanorods as a Cathode Material for Lithium-Ion Batteries.
abstract: LiV3O8nanorods with controlled size are successfully synthesized using a nonionic triblock surfactant Pluronic-F127 as the structure directing agent. X-ray diffraction, scanning electron microscopy, and transmission electron microscopy techniques are used to characterize the samples. It is observed that the nanorods with a length of 4-8 µm and diameter of 0.5-1.0 µm distribute uniformly. The resultant LiV3O8nanorods show much better performance as cathode materials in lithium-ion batteries than normal LiV3O8nanoparticles, which is associated with the their unique micro-nano-like structure that can not only facilitate fast lithium ion transport, but also withstand erosion from electrolytes. The high discharge capacity (292.0 mAh g-1at 100 mA g-1), high rate capability (138.4 mAh g-1at 6.4 A g-1), and long lifespan (capacity retention of 80.5% after 500 cycles) suggest the potential use of LiV3O8nanorods as alternative cathode materials for high-power and long-life lithium ion batteries. In particular, the synthetic strategy may open new routes toward the facile fabrication of nanostructured vanadium-based compounds for energy storage applications.
authors.affiliation: School of Power and Mechanical Engineering, Wuhan University, Wuhan, 430072, China.
authors.forename: Zhongxue
authors.initials: Z
authors.lastname: Chen
authors.affiliation: School of Power and Mechanical Engineering, Wuhan University, Wuhan, 430072, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Xu
authors.affiliation: School of Power and Mechanical Engineering, Wuhan University, Wuhan, 430072, China.
authors.forename: Shunan
authors.initials: S
authors.lastname: Cao
authors.affiliation: School of Power and Mechanical Engineering, Wuhan University, Wuhan, 430072, China.
authors.forename: Zhengfeng
authors.initials: Z
authors.lastname: Li
authors.affiliation: Hubei Key Laboratory of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
authors.forename: Hanxi
authors.initials: H
authors.lastname: Yang
authors.affiliation: Hubei Key Laboratory of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
authors.forename: Xinping
authors.initials: X
authors.lastname: Ai
authors.affiliation: Hubei Key Laboratory of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
authors.forename: Yuliang
authors.initials: Y
authors.lastname: Cao
keywords: batteries; cathode; high-power; long lifespan; nanorods