Changbao Zhu, Lin Gu, Liumin Suo, Jelena Popovic, Hong Li, Yuichi Ikuhara and Joachim Maier Size-Dependent Staging and Phase Transition in LiFePO4/FePO4 Advanced Functional Materials 24
The phenomenon of Li-ordering in the system LiFePO4/FePO4 is investigated by STEM-ABF for different sizes. While in small crystals, the ordering affect the whole particle; for larger crystals, it was found to characterize the LiFePO4/FePO4 contact and the interfacial zones narrow with increasing size. These findings are discussed in the light of phase transition thermodynamics and kinetics.
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