Surface Chemistry of Carbon-Treated LiFePO[sub 4] Particles for Li-Ion Battery Cathodes Studied by PES
Open Access
- 1 January 2003
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 6 (9), A202-A206
- https://doi.org/10.1149/1.1594413
Abstract
Photoelectron spectroscopy (PES) was used for depth-profile characterization of the interface formed on carbon-treated particles in the cathode of a lithium-ion battery after electrochemical cycling at 23 and 40°C in a 1 M mixture of ethylene carbonate and diethyl carbonate. Products from solvent reactions (such as polycarbonates) were not detected at the carbon-treated surface, contrary to findings for other cathode materials. Salt-based products like LiF, - and -type compounds were found on the cathode surface after cycling. Larger amounts of these compounds were detected on the surfaces of electrodes cycled at 40°C. © 2003 The Electrochemical Society. All rights reserved.Keywords
This publication has 14 references indexed in Scilit:
- Influence of Temperature on the Interface Chemistry of LixMn2O4 ElectrodesLangmuir, 2002
- The influence of lithium salt on the interfacial reactions controlling the thermal stability of graphite anodesElectrochimica Acta, 2002
- Surface Characterization of Electrodes from High Power Lithium-Ion BatteriesJournal of the Electrochemical Society, 2002
- Surface Analysis of LiMn[sub 2]O[sub 4] Electrodes in Carbonate-Based ElectrolytesJournal of the Electrochemical Society, 2002
- The source of first-cycle capacity loss in LiFePO4Journal of Power Sources, 2001
- Symmetric cell approach and impedance spectroscopy of high power lithium-ion batteriesJournal of Power Sources, 2001
- Approaching Theoretical Capacity of LiFePO[sub 4] at Room Temperature at High RatesElectrochemical and Solid-State Letters, 2001
- The Study of Surface Phenomena Related to Electrochemical Lithium Intercalation into Li[sub x]MO[sub y] Host Materials (M = Ni, Mn)Journal of the Electrochemical Society, 2000
- Phospho‐olivines as Positive‐Electrode Materials for Rechargeable Lithium BatteriesJournal of the Electrochemical Society, 1997
- The Electrochemical Behavior of Alkali and Alkaline Earth Metals in Nonaqueous Battery Systems—The Solid Electrolyte Interphase ModelJournal of the Electrochemical Society, 1979