Interfaces in solid-state sodium-ion batteries: NaCoO$_2$ thin films on solid electrolyte substrates

Guhl, Conrad; Kehne, Philipp; Tietz, Frank; Jaegermann, Wolfram; Ma, Qianli; Komissinskiy, Philipp; Hausbrand, René

doi:10.1016/j.electacta.2018.02.109

Journal Article

FZJ-2018-04621

Interfaces in solid-state sodium-ion batteries: NaCoO$_2$ thin films on solid electrolyte substrates

Guhl, C. (Corresponding author) ; Kehne, P. ; Ma, Q.FZJ* ; Tietz, F.FZJ* ; Komissinskiy, P. ; Jaegermann, W. ; Hausbrand, R.

2018
Elsevier New York, NY [u.a.]

Electrochimica acta 268, 226 - 233 (2018) [10.1016/j.electacta.2018.02.109]

This record in other databases:

Please use a persistent id in citations: doi:10.1016/j.electacta.2018.02.109

Abstract: On the way to sodium-based all-solid-state batteries, interface analysis is a key issue. In this work, the interface between two typical solid sodium-ion conductors (Na-β″-Al2O3 and NASICON) and the layered oxide material NaCoO2 is investigated. The formation of the interface between the electrolyte material and the NaCoO2 coating is studied using an in-situ X-ray photoemission spectroscopy (XPS) surface science approach. Only a slight reduction of zirconium and scandium in NASICON was observed in proximity to the cathode side interface, while severe reactions, including the formation of a CaOAl2O3 mixed phase, were detected between Na-β″-Al2O3 and NaCoO2.

Classification: