Synthesis and Characterization of Na 3 SbS 4 Solid Electrolytes via Mechanochemical and Sintered Solid-State Reactions: A Comparative Study

Celastin Bebina Thairiyarayar, Chia-Hung Huang, Yasser Ashraf Gandomi, Chien-Te Hsieh () and Wei-Ren Liu ()
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Celastin Bebina Thairiyarayar: Department of Chemical Engineering, R&D Center for Membrane Technology, Chung Yuan Christian University, 200 Chung Pei Road, Chungli District, Taoyuan City 32023, Taiwan
Chia-Hung Huang: Department of Electrical Engineering, National University of Tainan, No. 33, Sec. 2, Shulin St., West Central District, Tainan City 700, Taiwan
Yasser Ashraf Gandomi: Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
Chien-Te Hsieh: Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City 32003, Taiwan
Wei-Ren Liu: Department of Chemical Engineering, R&D Center for Membrane Technology, Chung Yuan Christian University, 200 Chung Pei Road, Chungli District, Taoyuan City 32023, Taiwan

Sustainability, 2023, vol. 15, issue 21, 1-16

Abstract: A sulfide-based solid electrolyte is an enticing non-organic solid-state electrolyte developed under ambient conditions. Na 3 SbS 4 , a profoundly enduring substance capable of withstanding exceedingly elevated temperatures and pressures, emerges as a focal point. Within this investigation, we employ dual distinct techniques to fabricate Na 3 SbS 4 , encompassing ball milling and the combination of ball milling with sintering procedures. A remarkable ionic conductivity of 3.1 × 10 −4 S/cm at room temperature (RT), coupled with a meager activation energy of 0.21 eV, is achieved through a bifurcated process, which is attributed to the presence of tetragonal Na 3 SbS 4 (t-NSS). Furthermore, we delve into the electrochemical performance and cyclic longevity of the Na 2/3 Fe 1/2 Mn 1/2 O 2 |t-NSS|Na system within ambient environs. It reveals 160 mAh/g initial charge and 106 mAh/g discharge capacities at 0.01 A/g current density. Furthermore, a cycle life test conducted at 0.01 A/g over 30 cycles demonstrates stable and reliable performance. The capacity retention further highlights its enduring energy storage capabilities. This study underscores the sustainable potential of Na 3 SbS 4 as a solid-state electrolyte for advanced energy storage systems.

Keywords: t-Na 3 SbS 4; mechanochemical (BM); sintering; ionic conductivity; activation energy (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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