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Microwave-Assisted Synthesis of Sulfide Solid Electrolytes for All-Solid-State Sodium Batteries

  • Poyil Aswathy
    Poyil Aswathy
    School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
  • Shruti Suriyakumar
    Shruti Suriyakumar
    School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
  • Sreelakshmi Anil Kumar
    Sreelakshmi Anil Kumar
    School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
  • Muhammed Shafeek Oliyantakath Hassan
    Muhammed Shafeek Oliyantakath Hassan
    School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
  • Vinesh Vijayan
    Vinesh Vijayan
    School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
  • , and 
  • Manikoth M. Shaijumon*
    Manikoth M. Shaijumon
    School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
    *Email: [email protected]
Cite this: ACS Appl. Energy Mater. 2022, 5, 10, 12592–12601
Publication Date (Web):October 4, 2022
https://doi.org/10.1021/acsaem.2c02224
Copyright © 2022 American Chemical Society

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    Abstract

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    Sulfide-based solid electrolytes are one of the potential candidates for all-solid-state batteries due to their high ionic conductivity and low synthesis temperature compared to their oxide counterparts. However, the preparation methods involve the requirement of an inert atmosphere for ball milling, heating, and quenching facilities that severely limit their implementation, which necessitates a resurgence of interest in alternate synthesis approaches. Herein, a simple, accelerated, and energy-efficient method for the synthesis of highly crystalline cubic sodium thiophosphate solid electrolyte (Na3PS4) is developed using the microwave-assisted irradiation technique. Along with impedance studies, 23Na solid-state NMR spin-lattice relaxation experiments are performed to obtain insights into Na-ion mobility in Na3PS4 solid electrolytes. The electrochemical properties and the interfacial stability of the electrolyte with the metallic sodium anode are thoroughly investigated and presented in this work. Further, a prototype full-cell constructed using a Na3V2(PO4)3 cathode, a Na3PS4 solid electrolyte, and a modified sodium anode showed promising electrochemical properties. Although numerous studies focus on solid electrolyte interface modification and design, the simple and energy-efficient approach for sodium-ion solid electrolyte synthesis presented here will provide a meaningful advance to the accelerated synthesis of sulfide electrolyte-based all-solid-state batteries.

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    The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acsaem.2c02224.

    • Details of solvent and temperature optimization for SSE preparation, effect of quenching on SSE formation, TEM of Na3PS4, comparison of the conductivity of reported Na3PS4, SEM of interface-modified sodium, digital photograph, dq/dv plot, and Nyquist plot of the ASSB (PDF)

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    Cited By

    This article is cited by 1 publications.

    1. Kundan Kumar, Rajen Kundu. Empowering Energy Storage Technology: Recent Breakthroughs and Advancement in Sodium-Ion Batteries. ACS Applied Energy Materials 2024, 7 (9) , 3523-3539. https://doi.org/10.1021/acsaem.4c00592

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