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Updated: Jun 12, 2026

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
Biphasic P2/O3-Na2/3Li0.18Mn0.8Fe0.2O2: a structural investigation
Jennifer H Stansby1, Maxim Avdeev2, Helen E A Brand3
1School of Chemistry, UNSW Australia, Sydney, NSW 2052, Australia. neeraj.sharma@unsw.edu.au and Australian Centre for Neutron Scattering, Australia Nuclear Science and Technology Organisation, Kirrawee DC, NSW 2253, Australia.
Abstract:
The P2/O3 layered oxide system is thought to benefit from a synergistic enhancement, resulting from the presence of both phases, which makes it a promising cathode material for Na-ion battery applications. Here, biphasic P2/O3-Na2/3Li0.18Mn0.8Fe0.2O2 is investigated via a combination of neutron and X-ray scattering techniques. Neutron diffraction data indicates that the O3 alkali metal site is fully occupied by Li. Real time operando X-ray diffraction data shows the structural evolution of the composite electrode - at the charged state there is no evidence of O2, OP4 or Z phases. The results presented herein provide new insight into site preference of Li in biphasic materials and highlights the value of utilizing multiple phases to achieve high performance layered cathode materials for sodium battery applications.
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