阳极
无定形固体
材料科学
介孔材料
电化学
阴极
纳米材料
钠
化学工程
纳米技术
电极
化学
催化作用
冶金
有机化学
工程类
物理化学
作者
Zhuangzhuang Zhang,Yu Han,Jiamin Xu,Jinghan Ma,Xiaosi Zhou,Jianchun Bao
出处
期刊:ACS applied energy materials
[American Chemical Society]
日期:2018-07-24
卷期号:1 (8): 4395-4402
被引量:28
标识
DOI:10.1021/acsaem.8b01027
摘要
Two-dimensional (2D) nanomaterials have drawn enormous attention as anode materials for sodium-ion batteries. However, the synthesis of 2D cathode materials for advanced sodium-ion batteries remains a big challenge. Herein, amorphous FePO4 nanosheets are successfully synthesized through a simple template method. The as-synthesized amorphous FePO4 nanosheets possess a mesoporous structure. Electrochemical measurements reveal that the amorphous FePO4 nanosheets exhibit a large initial discharge capacity of 126.4 mAh g–1 at a current density of 20 mA g–1, superior cycling performance (89.8% capacity retention over 100 cycles), and high rate capability (42.1 mAh g–1 at 1000 mA g–1). These results indicate that the amorphous FePO4 nanosheets can serve as a promising cathode material for sodium-ion batteries.
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