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Updated: Sep 24, 2025

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
Electrical and electrochemical properties of Li2M(WO4)2 (M = Ni, Co and Cu) compounds
Karim Karoui1, Abdelfattah Mahmoud2, Abdallah Ben Rhaiem1
1Laboratory of Condensed Matter, Faculty of Science of Sfax, University of Sfax BP1171 - 3000 Sfax Tunisia karouikarim36@yahoo.com.
Abstract:
Li2M(WO4)2 (M = Co, Cu or Ni) materials have been synthesized using the solid-state reaction method. X-ray diffraction measurements confirmed the single phase of the synthesized compounds in the triclinic crystal system (space group P1̄). The SEM analyses revealed nearly spherical morphology with the particle size in the range of 1-10 μm. The IR spectra confirm the presence of all modes of WO4 2-. The impedance spectroscopy measurements showed the presence of grain boundaries and allow determination of the conductivity of the synthesized materials at room temperature. As positive electrode materials for lithium ion batteries, Li2M(WO4)2 (M = Co, Cu or Ni) cathode materials deliver initial discharge capacities of 31, 33 and 30 mA h g-1 for cobalt, nickel, and copper, respectively.
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