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Lithium ions diffuse in 1 dimensional channels consist of chains of octahedral sites. It is a relatively economic cathode material, with iron being one of most abundant element on the earth.
Lithium ions diffuse in 2 dimensional planes separated by CoO2 layers.It is the most widely used cathode material in consumer electronics since SONY first introduced it in 1991.
Lithium ions diffuse in 3 dimensions in spinel LiMn2O4 by hopping between tetrahedral sites via intermediate octahedral sites.
Recent developments in Positive electrodes.
Stabilization of O-O bonds by d0 cations in Li4+xNi1-xWO6 (0≤ x≤ 0.25) rocksalt oxides as the origin of large voltage hysteresis
Z.N. Taylor, A.J. Perez, J.A. Coca-Clemente, F. Braga, N.E. Drewett, M.J. Pitcher, W.J. Thomas, M.S. Dyer, C. Collins, M. Zanella, T. Johnson, S. Day, C. Tang, V.R. Dhanak, J.B. Claridge, L.J. Hardwick and M.J. Rosseinsky
J. Am. Chem. Soc., 141 18 (2019), 7333- 7346.
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