Reversible Lithium Uptake by FeP[sub 2]
Open Access
- 1 January 2003
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 6 (8), A162-A165
- https://doi.org/10.1149/1.1588112
Abstract
The electrochemical reaction of lithium with the metal phosphide is reported. Li uptake in this material was investigated using electrochemical studies combined with X-ray diffraction, X-ray absorption spectroscopy, and magnetic measurements. The uptake of six Li during the first discharge leads to a specific capacity of 1365 mAh/g, and an amorphous phase retaining substantial Fe-P bonding that displays superparamagnetic behavior and an extremely low transition temperature. Upon charge, 5.5 lithium can be extracted from this metastable ternary “Li-Fe-P” phase, leading to a reversible capacity of 1250 mAh/g. The low (ca. 10-15%) irreversibility exhibited by makes it an interesting candidate in the search for new negative electrode materials. © 2003 The Electrochemical Society. All rights reserved.Keywords
This publication has 23 references indexed in Scilit:
- Electrochemical Studies of Nanoncrystalline Mg[sub 2]Si Thin Film Electrodes Prepared by Pulsed Laser DepositionJournal of the Electrochemical Society, 2003
- A Reversible Solid-State Crystalline Transformation in a Metal Phosphide Induced by Redox ChemistryScience, 2002
- Reversible lithium uptake by CoP3 at low potential: role of the anionElectrochemistry Communications, 2002
- Bonding in skutterudites: Combined experimental and theoretical characterization ofPhysical Review B, 2001
- X-Ray Absorption Spectroscopy Study of the Structural and Electronic Changes upon Cycling of LiNiVO[sub 4] as a Battery ElectrodeJournal of the Electrochemical Society, 2001
- Lithium secondary batteries using a lithium cobalt nitride, Li2.6Co0.4N, as the anodeSolid State Ionics, 2000
- In Situ X‐Ray Absorption Spectroscopy Characterization of V 2 O 5 Xerogel Cathodes upon Lithium IntercalationJournal of the Electrochemical Society, 1999
- Li[sub x]Cu[sub 6]Sn[sub 5] (0<x<13): An Intermetallic Insertion Electrode for Rechargeable Lithium BatteriesElectrochemical and Solid-State Letters, 1999
- Intermetallic Insertion Electrodes with a Zinc Blende-Type Structure for Li Batteries: A Study of Li[sub x]InSb (0≤x≤3)Electrochemical and Solid-State Letters, 1999
- Synthesis and electrochemical studies of a new anode material, Li3 − xCoxNSolid State Ionics, 1996