Fe2(MoO4)3/Nanosilver Composite as a Cathode for Sodium-Ion Batteries

被引：16
|
作者：
VanTu Nguyen [1 ]
Liu, YueLi [1 ]
Yang, Xue [1 ]
Chenz, Wen [1 ]
机构：
[1] Wuhan Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
来源：
ECS ELECTROCHEMISTRY LETTERS | 2015年 / 4卷 / 03期
关键词：
FLUOROPHOSPHATE; INSERTION;
D O I：
10.1149/2.0021503eel
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The precursor of Fe-2(MoO4)(3) has been synthesized by precipitation method, which is used to prepare high-capacity cathode material Fe-2(MoO4)(3)/nanosilver composite for sodium-ion batteries. The silver modifying does not affect the monoclinic structure of Fe-2(MoO4)(3) but improves its kinetics in terms of discharge capacity and rate capability. AC impedance measurements show that the Ag modification decreases the charge transfer resistance of Fe-2(MoO4)(3)/nanosilver composite cathodes. Electrochemical studies confirm that the Fe-2(MoO4)(3)/nanosilver composite exhibits capacity of 90 mAhg(-1), and retains 84.5 % of capacity even after 50 cycles. (C) 2014 The Electrochemical Society.
引用
收藏
页码：A29 / A32
页数：4
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