Low-temperature synthesis of amorphous FeP 2 and its use as anodes for Li ion batteries

Justin W. Hall, Nellymar Membreno, Jing Wu, Hugo Celio, Richard A. Jones, Keith J. Stevenson

Research output: Contribution to journalArticlepeer-review

118 Citations (Scopus)

Abstract

The reaction of Fe(N(SiMe 3) 2) 3 with PH 3 in THF at 100 °C gives amorphous FeP 2 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 -1, respectively, translating to 61% reversibility on the first cycle and a discharge capacity of 906 mA h g -1 after 10 cycles. This translates to 66% retention of the theoretical full conversion capacity of FeP 2 (1365 mA h g -1).

Original languageEnglish
Pages (from-to)5532-5535
Number of pages4
JournalJournal of the American Chemical Society
Volume134
Issue number12
DOIs
Publication statusPublished - 28 Mar 2012
Externally publishedYes

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