期刊
ACS APPLIED ENERGY MATERIALS
卷 1, 期 8, 页码 4395-4402出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.8b01027
关键词
FePO4; amorphous nanosheets; mesoporous structure; sodium storage; cathode
资金
- National Natural Science Foundation of China [51577094, 21503112]
- 100 Talents Program of Nanjing Normal University
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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