Stability and Rate Capability of Al Substituted Lithium-Rich High-Manganese Content Oxide Materials for Li-Ion Batteries
- 1 January 2011
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 159 (2), A116-A120
- https://doi.org/10.1149/2.044202jes
Abstract
The structures, electrochemical properties and thermal stability of Al-substituted lithium-excess oxides, Li1.2Ni0.16 Mn0.56Co0.08−yAlyO2 (y = 0, 0.024, 0.048, 0.08), are reported, and compared to the stoichiometric compounds, LiNizMnzCo1−2zO2. A solid solution was found up to at least y = 0.06. Aluminum substitution improves the poor thermal stability while preserving the high energy density of lithium-excess oxides. However, these high manganese compositions are inferior to the lithium stoichiometric materials, LiNizMnzCo1−2zO2 (z = 0.333, 0.4), in terms of both power and thermal stability.Keywords
This publication has 25 references indexed in Scilit:
- Comparative Study of the Capacity and Rate Capability of LiNiyMnyCo1–2yO2 (y = 0.5, 0.45, 0.4, 0.33)Journal of the Electrochemical Society, 2011
- Key challenges in future Li-battery researchPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2010
- Layered Mixed Transition Metal Oxide Cathodes with Reduced Cobalt Content for Lithium Ion BatteriesChemistry of Materials, 2008
- Li2MnO3-stabilized LiMO2 (M = Mn, Ni, Co) electrodes for lithium-ion batteriesJournal of Materials Chemistry, 2007
- Structural and electrochemical behavior of LiMn0.4Ni0.4Co0.2O2Journal of Power Sources, 2007
- Advances in manganese-oxide ‘composite’ electrodes for lithium-ion batteriesJournal of Materials Chemistry, 2005
- Structure and Electrochemistry of Li[Ni[sub x]Co[sub 1−2x]Mn[sub x]]O[sub 2] (0≤x≤1/2)Journal of the Electrochemical Society, 2002
- Layered Lithium Insertion Material of LiCo1/3Ni1/3Mn1/3O2 for Lithium-Ion BatteriesChemistry Letters, 2001
- Layered Cathode Materials Li[Ni[sub x]Li[sub (1/3−2x/3)]Mn[sub (2/3−x/3)]]O[sub 2] for Lithium-Ion BatteriesElectrochemical and Solid-State Letters, 2001
- Electrical Energy Storage and Intercalation ChemistryScience, 1976