Hierarchical Mesoporous Iron Fluoride with Superior Rate Performance for Lithium-Ion Batteries

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• 作者：Yangmei Han ; Huiyu Li ; Jinfeng Li ; Huinan Si ; Wentao Zhu ; Xinping Qiu
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：December 7, 2016
• 年：2016
• 卷：8
• 期：48
• 页码：32869-32874
• 全文大小：502K
• ISSN：1944-8252

文摘

Monodispersed mesoporous iron fluorides were synthesized by a low-cost reversed micelle method. The as-prepared materials with hierarchical mesoporous structure exhibit excellent rate capability (115.6 mAh g^–1 at 2000 mA g^–1) which is superior to many other carbon-free iron fluorides. In addition, a high reversible capacity of 143.2 mAh g^–1 can be retained after 100 cycles at 1000 mA g^–1. The outstanding electrochemical features can be attributed to the particular hierarchical mesoporous structure, facilitating electrolyte penetration as well as rapid electronic and ionic transportation.