title: Low Defect FeFe(CN)6 Framework as Stable Host Material for High Performance Li-Ion Batteries.
abstract: Low cost and high performance Li-ion batteries have been extensively pursued for grid-scale energy storage applications; however, their development has been impeded for a long time due to the lack of qualified cathode materials with not only decent electrochemical performance but also resource abundance and low price. In this paper, we report Prussian-blue type FeFe(CN)6 nanocrystals with well-controlled lattice defects and perfect nanocubic morphology, which can exhibit a high Li-storage capacity of 160 mAh g(-1), a strong rate performance at 24 C, and a superior cycle stability with 90% capacity retention over 300 cycles. This low defect lattice and its excellent Li-insertion performance might provide a new insight into the design of advanced Li-ion battery materials and also a competitive alternative to the presently developed Li(+) insertion cathodes to develop low cost and high performance Li-ion batteries for grid-scale energy storage applications.
authors.affiliation: College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan, Hubei 430072, China.
authors.forename: Xianyong
authors.initials: X
authors.lastname: Wu
authors.affiliation: College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan, Hubei 430072, China.
authors.forename: Miaomiao
authors.initials: M
authors.lastname: Shao
authors.affiliation: College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan, Hubei 430072, China.
authors.forename: Chenghao
authors.initials: C
authors.lastname: Wu
authors.affiliation: College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan, Hubei 430072, China.
authors.forename: Jiangfeng
authors.initials: J
authors.lastname: Qian
authors.affiliation: College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan, Hubei 430072, China.
authors.forename: Yuliang
authors.initials: Y
authors.lastname: Cao
authors.affiliation: College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan, Hubei 430072, China.
authors.forename: Xinping
authors.initials: X
authors.lastname: Ai
authors.affiliation: College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan, Hubei 430072, China.
authors.forename: Hanxi
authors.initials: H
authors.lastname: Yang
keywords: FeFe(CN)6 nanocrystal; Prussian blue compounds; cathode material; lithium ion batteries; low-defect lattice