Ultrafast Synthesis of NASICON Solid Electrolytes for Sodium‐Metal Batteries

Abstract

NASICON‐structured solid‐state electrolytes (SSEs) are highly promising materials for sodium solid‐state metal batteries (NaSMBs). However, the current synthesis methods are often labor‐intensive and inefficient, consuming a significant amount of energy and time. Here, an ultrafast high‐temperature synthesis (UHS) technique is successfully demonstrated to directly synthesize NASICON‐type SSEs from mixed precursor powders, reducing the synthesis time from hours to merely seconds. The intermediate with a Na3PO4 structure plays a critical role in the rapid synthesis of NASICON‐type SSEs, ultimately leading to the formation of the final NASICON phase. Moreover, the UHS‐synthesizes NASICON‐type Na3.3Zr1.7Lu0.3Si2PO12 (NZLSP) exhibits high room temperature ionic conductivity of 7.7 × 10−4 S cm−1, approximately three times that of the undoped Na3Zr2Si2PO12 (NZSP). The Na|NZLSP|Na symmetric cell can sustain highly stable cycling for over 4800 h. This study provides a novel insight and validation in the precise and targeted synthesis of complex oxide solid‐state electrolytes.

PCTS‐Controlled Synthesis of L10/L12‐Typed Pt‐Mn Intermetallics for Electrocatalytic Oxygen Reduction

“…[37] More recently, Joule heating was applied to rapidly promote the phase transition of the nanoparticles into L1 0 intermetallic structure with ultrasmall particle size, [38] owing to its ultra-high temperature and rapid heating and cooling rate. [39][40][41][42] As far as we know, Joule heating synthesis of IMCs is still in the early stage, which still remains to be further explored.…”

Empowering Energy Storage Technology: Recent Breakthroughs and Advancement in Sodium-Ion Batteries

“…Recent research works reveal that solid-state electrolytes and quasi-solid-state electrolytes are more suitable for fast charging sodium-ion batteries. The primary factor contributing to this phenomenon is the enhanced stability of solid-state electrolytes even in high current density . The solid-state electrolyte allows for efficient ion migration during charging, leading to shorter charging durations compared to those of electrolytes with lower conductivity.…”

“…The primary factor contributing to this phenomenon is the enhanced stability of solid-state electrolytes even in high current density. 89 The solid-state electrolyte allows for efficient ion migration during charging, leading to shorter charging durations compared to those of electrolytes with lower conductivity. Furthermore, the enhanced stability of solid-state electrolytes mitigates issues such as electrode degradation and electrolyte decomposition, which suppress the problems arising during fast charging with conventional liquid electrolytes.…”

Review and New Perspectives on Non-Layered Manganese Compounds as Electrode Material for Sodium-Ion Batteries

“…It would be necessary to develop new methods of synthesis based on fast procedures and low-energy consumption. For example, ultrafast high-temperature sintering with Joule heating is a promising method that has been applied to NASICON-type solid electrolytes, but it may also be a source of inspiration for electrode materials [173].…”