Structural fatigue in spinel electrodes in high voltage (4 V) Li/Li < inf> x Mn < inf> 2 O < inf> 4 cells
Document Type
Article
Publication Date
1-1-1998
Abstract
Evidence of structural fatigue has been detected at the surface of discharged Lix[Mn2]O4 spinel electrodes in (4 V) Li/Lix[Mn2]O4 cells. Under nonequilibrium conditions, domains of tetragonal Li2[Mn2]O4 coexist with cubic Li[Mn2]O4, even at 500 mV above the thermodynamic voltage expected for the onset of the tetragonal phase. The presence of Li2[Mn2]O4 on the particle surface may contribute to some of the capacity fade observed during cycling of Li/Lix[Mn2]O4 cells. © 1998 The Electrochemical Society, Inc.
Publication Title
Electrochemical and Solid-State Letters
Recommended Citation
Thackeray, M.,
Shao-Horn, Y.,
Kahaian, A.,
Kepler, K.,
Skinner, E.,
Vaughey, J.,
&
Hackney, S.
(1998).
Structural fatigue in spinel electrodes in high voltage (4 V) Li/Li < inf> x Mn < inf> 2 O < inf> 4 cells.
Electrochemical and Solid-State Letters,
1(1), 7-9.
http://doi.org/10.1149/1.1390617
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/12634