Structural and electrical properties of mol% (100 − x)Li2SO4:xP2O5 solid electrolyte system (0 ≤ x ≤ 20)
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Sony Varghese
and
Krishnaswamy Hariharan
Abstract
Extensive research has been focused on solid electrolytes exhibiting high lithium ion conductivity, with the goal of advancing their use in solid-state lithium-ion batteries. This study investigates the influence of a glass former, P2O5, on the structure and ionic conductivity of the solid electrolyte Li2SO4. Quenching of Li2SO4 in the presence of P2O5 resulted in a glass–crystal composite with significant amorphous content. The XRD analysis of the 20 mol% glass ceramics detects the presence of Li4P2O7 without altering the original crystal structure. Notably, a conductivity value of 1.11 × 10−4 S cm−1 at 563 K was observed for 20 mol%, which is around two orders higher than that of polycrystalline Li2SO4. The introduction of a small amount of glass former P2O5 appears to loosen the structure of Li2SO4 creating an easier path for Li+ ion migration in the combined SO4–PO4 network structure.
Acknowledgments
We gratefully acknowledge the Indian Institute of Technology Madras, Chennai for providing the facilities to carry out this research work.
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Research ethics: Not applicable.
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Author contributions: Sony Varghese: Investigation, Data curation, Visualization, Writing-Original draft. Krishnaswamy Hariharan: Conceptualization, Methodology, Supervision, Validation.
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Competing interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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Research funding: Not applicable.
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Data availability: Upon request to the corresponding author.
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- Impact of annealing temperature on the structural, morphological and optical properties of Ni doped ZnO nanostructured thin films synthesized by sol–gel methodology
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- Microwave synthesis of magnesium phosphate-rGO as an effective electrode for supercapacitor application
- Adsorptive removal of Cu(II) ions from aqueous solution using Teff (Eragrostis tef) hay based magnetized biocarbon: RSM-GA, ANN based optimization and kinetics aspects
- Efficiency assessment of hydrothermally synthesized Mn2+/3+ modified LaCoO3 nanoparticles for advanced wastewater remediation
- Synthesis of BaO/NiO/rGO nanocomposite for supercapacitor application
- Ethanedithiol-modified silica nanoparticles for selective removal of Hg2+ ions from aqueous wastewater
- Effect of Zr substitution on photocatalytic and magnetic properties of lanthanum titanate
- Investigations on the microbial activity and anti-corrosive efficiency of nickel oxide nanoparticles synthesised through green route
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