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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

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Published on: November 11, 2013

Novel lithium-containing honeycomb structures.

Vinod Kumar¹, Neha Bhardwaj, Nobel Tomar

¹Materials Chemistry Group, Department of Chemistry, University of Delhi, Delhi, India.

Inorganic Chemistry

|October 6, 2012

Summary

This summary is machine-generated.

New lithium-based mixed-metal oxides with rock-salt honeycomb structures were synthesized. These materials containing tellurium (Te) and antimony (Sb) show promise for diverse applications.

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Area of Science:

Solid-state chemistry
Materials science
Inorganic chemistry

Background:

Rock-salt-based honeycomb structures are of interest due to their unique properties and potential applications.
Mixed-metal oxides offer tunable characteristics for advanced material design.

Purpose of the Study:

To synthesize and characterize two new series of mixed-metal oxides: Li(8)M(2)Te(2)O(12) and Li(8)M(2)Sb(2)O(12).
To explore the structural properties of these novel compounds, focusing on tellurium (Te) and antimony (Sb) containing materials.

Main Methods:

Synthesis of mixed-metal oxides Li(8)M(2)Te(2)O(12) (M(II) = Co, Ni, Cu, Zn) and Li(8)M(2)Sb(2)O(12) (M(III) = Cr, Fe, Al, Ga).
Single-crystal X-ray diffraction was employed to determine the crystal structures of Li(8)Co(2)Te(2)O(12) and Li(8)Cu(2)Te(2)O(12).

Main Results:

Successful realization of rock-salt-based honeycomb structures in the two new series of mixed-metal oxides.
First-time structural determination of Li(8)Co(2)Te(2)O(12) and Li(8)Cu(2)Te(2)O(12) using single-crystal X-ray diffraction.
Identification of mixed-occupancy of lithium (Li) and the secondary metal (M) in the determined crystal structures.

Conclusions:

The study presents novel lithium-based mixed-metal oxides featuring Te(VI) and Sb(V) in rock-salt honeycomb structures.
The structural analysis reveals intricate mixed-occupancy, providing insights for future materials design and property tuning.