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Regulated interface conduction in halide solid electrolyte for all-solid-state sodium batteries
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DOI：10.1007/s42864-025-00343-y.png)
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Abstract
En 中文
All-solid-state sodium-ion batteries (ASSSIBs) that applied inorganic solid electrolytes offer enhanced safety and stand out as promising contenders for the next-generation energy storage systems. Herein, an oxygen-incorporated Na2ZrCl6 (NZC) composite electrolyte with high ionic conductivity (1.52 × 10‒4 S·cm‒1) at an ambient temperature was reported. The composite electrolyte, which was prepared through a mechanochemical reaction and formed a highly ionic conductive interface, consists of oxide between ZrO2 and NZC. A series of characterization confirmed that oxygen interacted with sodium ions, resulting in enhanced Na+ diffusivity at the interface. The ASSSIBs, which comprise a NaNi1/3Fe1/3Mn1/3O2 cathode, a Na15Sn4 anode, and a Na3PS4 anodic interlayer with ZrO2-NZC electrolyte, demonstrate a high discharged capacity of 104.9 mAh·g‒1, and significantly outstrip the baseline NZC electrolyte. This work offers an idea of methods for improving ion migration in halide solid electrolytes for practical feasibility in all-solid-state batteries.
Keywords:
Halie solid electrolyte
Interface regulation
High ionic conductivity
All-solid-state sodium-ion batteries
Journal
IF:
11.2
Papers:
364
Citations:
2.0K