A High-Rate Manganese Oxide for Rechargeable Lithium Battery Applications
- 1 January 2001
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 148 (3), A230-A236
- https://doi.org/10.1149/1.1349883
Abstract
LixMnO2LixMnO2 made by ion exchange of glycine-nitrate combustion synthesis-processed (GNP) orthorhombic Na0.44MnO2Na0.44MnO2 (GNPLixMnO2)(GNPLixMnO2) has been cycled in lithium/liquid electrolyte cell configurations at room temperature and lithium/polymer cell configurations at 85°C over one hundred times without showing capacity fading or phase conversion to spinel. At 2.5 mA/cm2 in liquid cells (5C rate) or 1 mA/cm2 (1.5C rate) in polymer cells, 80-95% of the expected capacity is delivered. The remarkable stability is attributable to the unusual double tunnel structure, which cannot easily undergo rearrangement to spinel. The enhanced rate capability of GNPLixMnO2GNPLixMnO2 compared to conventionally prepared materials is attributable to the shorter particle length, which allows faster diffusion of lithium ions along the tunnels. © 2001 The Electrochemical Society. All rights reserved.Keywords
This publication has 16 references indexed in Scilit:
- Transport Properties of the Solid Polymer Electrolyte System P(EO)nLiTFSIThe Journal of Physical Chemistry B, 2000
- Structural Changes of LiMn2 O 4 Spinel Electrodes during Electrochemical CyclingJournal of the Electrochemical Society, 1999
- Layered Li‐Mn‐Oxide with the O2 Structure: A Cathode Material for Li‐Ion Cells Which Does Not Convert to SpinelJournal of the Electrochemical Society, 1999
- Structural Fatigue in Spinel Electrodes in High Voltage (4 V) Li/Li[sub x]Mn[sub 2]O[sub 4] CellsElectrochemical and Solid-State Letters, 1999
- Synthesis and Lithium Intercalation Properties of Na[sub 0.5−x]Li[sub x]MnO[sub 2+δ] and Na[sub 0.5−x]MnO[sub 2+δ] CathodesElectrochemical and Solid-State Letters, 1999
- Self‐Discharge of LiMn2 O 4/C Li‐Ion Cells in Their Discharged State: Understanding by Means of Three‐Electrode MeasurementsJournal of the Electrochemical Society, 1998
- Effect of Electrolyte Composition on the Performance of Sodium/Polymer CellsJournal of the Electrochemical Society, 1997
- FTIR Spectroscopy of Metal Oxide Insertion Electrodes: A New Diagnostic Tool for Analysis of Capacity Fading in Secondary CellsJournal of the Electrochemical Society, 1996
- Electrochemical Characterization of Orthorhombic NaXMnO2 for Alkali Metal Polymer BatteriesMRS Proceedings, 1995
- Glycine-nitrate combustion synthesis of oxide ceramic powdersMaterials Letters, 1990