Low-Temperature Synthesis of Amorphous FeP2 and Its Use as Anodes for Li Ion Batteries

详细信息    查看全文

• 作者：Justin W. Hall ; Nellymar Membreno ; Jing Wu ; Hugo Celio ; Richard A. Jones ; Keith J. Stevenson
• 刊名：The Journal of the American Chemical Society
• 出版年：2012
• 出版时间：March 28, 2012
• 年：2012
• 卷：134
• 期：12
• 页码：5532-5535
• 全文大小：264K
• 年卷期：v.134,no.12(March 28, 2012)
• ISSN：1520-5126

文摘

The reaction of Fe(N(SiMe₃)₂)₃ with PH₃ in THF at 100 掳C gives amorphous FeP₂ in high yield. As an anode material in a Li ion battery, this material shows remarkable performance toward electrochemical lithiation/delithation, with gravimetric discharge and charge capacities of 1258 and 766 mA h g^鈥?, respectively, translating to 61% reversibility on the first cycle and a discharge capacity of 906 mA h g^鈥? after 10 cycles. This translates to 66% retention of the theoretical full conversion capacity of FeP₂ (1365 mA h g^鈥?).