Kinetics Study of the High Potential Range of Lithium-Rich Transition-Metal Oxides for Lithium-Ion Batteries by Electrochemical Methods
- 1 January 2010
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 13 (5), A62-A64
- https://doi.org/10.1149/1.3338899
Abstract
Lithium-rich transition-metal oxides lose oxygen during the first removal of lithium. In this study, the kinetics of the oxygen-loss process of the lithium-rich oxide, , of varying particle sizes was studied. The electrochemical data were analyzed, and oxygen diffusion constants of and were determined for the oxygen-loss process at 30 and , respectively. This is about 1000 times smaller than typical lithium diffusion constants in layered oxides. The material with a particle size was cycled without capacity loss at a specific capacity of at .Keywords
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