Oxide-Based Composite Electrolytes Using Na3 Zr2 Si2 PO12 /Na3 PS4 Interfacial Ion Transfer

ACS Applied Materials & Interfaces
Kousuke NoiMasahiro Tatsumisago

Abstract

All-solid-state sodium batteries using Na3Zr2Si2PO12 (NASICON) solid electrolytes are promising candidates for safe and low-cost advanced rechargeable battery systems. Although NASICON electrolytes have intrinsically high sodium-ion conductivities, their high sintering temperatures interfere with the immediate development of high-performance batteries. In this work, sintering-free NASICON-based composites with Na3PS4 (NPS) glass ceramics were prepared to combine the high grain-bulk conductivity of NASICON and the interfacial formation ability of NPS. Before the composite preparation, the NASICON/NPS interfacial resistance was investigated by modeling the interface between the NASICON sintered ceramic and the NPS glass thin film. The interfacial ion-transfer resistance was very small above room temperature; the area-specific resistances at 25 and 100 °C were 15.8 and 0.40 Ω cm2, respectively. On the basis of this smooth ion transfer, NASICON-rich (70-90 wt %) NASICON-NPS composite powders were prepared by ball-milling fine powders of each component. The composite powders were well-densified by pressing at room temperature. Scanning electron microscopy observation showed highly dispersed sub-micrometer NASICON grains in a dense N...Continue Reading

References

May 24, 2012·Nature Communications·Akitoshi HayashiMasahiro Tatsumisago
Jul 24, 2013·Scientific Reports·Atsushi SakudaMasahiro Tatsumisago
Jun 5, 2014·Physical Chemistry Chemical Physics : PCCP·Mouad DahbiShinichi Komaba
Nov 13, 2014·Chemical Reviews·Naoaki YabuuchiShinichi Komaba
Aug 31, 2016·Scientific Reports·Shufeng SongLi Lu

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Citations

Apr 9, 2020·Chemical Reviews·Zheyi ZouSiqi Shi

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