Stabilizing the Interface between Sodium Metal Anode and Sulfide-Based Solid-State Electrolyte with an Electron-Blocking Interlayer

ACS Applied Materials & Interfaces
Pu HuYan Yao

Abstract

Sulfide-based Na-ion conductors are promising electrolytes for all-solid-state sodium batteries (ASSSBs) because of high ionic conductivity and favorable formability. However, no effective strategy has been reported for long-duration Na cycling with sulfide-based electrolytes because of interfacial challenges. Here we demonstrate that a cellulose-poly(ethylene oxide) (CPEO) interlayer can stabilize the interface between sulfide electrolyte (Na3SbS4) and Na by shutting off the electron pathway of the electrolyte decomposition reaction. As a result, we achieved stable Na plating/stripping for 800 cycles at 0.1 mA cm-2 in all-solid-state devices at 60 °C.

References

May 24, 2012·Nature Communications·Akitoshi HayashiMasahiro Tatsumisago
Nov 13, 2014·Chemical Reviews·Naoaki YabuuchiShinichi Komaba
Dec 17, 2016·Advanced Science·Long ZhangYueming Li
Feb 6, 2017·ACS Central Science·Weidong ZhouJohn B Goodenough

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Citations

Jul 13, 2021·Chemical Communications : Chem Comm·Yangyang XieZhian Zhang
Jul 1, 2020·Chemical Reviews·Abhik BanerjeeYing Shirley Meng

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