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Synthesis Sensitivities Of Lithium-Rich Layered Oxides
Cathode
Synthesis Sensitivities Of Lithium-Rich Layered Oxides
Lithium carbonate particle size is critical to the synthesis of lithium-rich layered oxides Busse and co-authors studied the impact of lithium carbonate particle size on the calcination process of lithium-rich layered oxides. Previous studies had suggested that Li2CO3 melting was key to the synthesis. Intermediate phases and reaction inhomogeneity are frequently observed, which this work has attributed to mismatched precursor particle sizes. Cation ordering occurs in lithium-rich cathode materials and affects the voltage profile and charge storage capacity. This cation ordering is strongly influenced by the synthesis protocol and particle characteristics. Careful control of these parameters is often implicit in industrial processes but may not be understood as the source of batch-to-batch differences. Particle size and morphology should be reported in academic papers. Lithium carbonate melting is not required to synthesize homogeneous lithium-rich cathode materials, if the lithium and transition metal precursors are of similar particle size.
Academia | P. 208 Source: G. Busse, Csernica, P.M., Lim, K., Lee, J., Jiang, Z., Rivera, D.F., Kim, Y.J., Shapiro, D.A., Gent, W.E., Chueh, W.C.
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