TY  - JOUR
AU  - Guhl, Conrad
AU  - Kehne, Philipp
AU  - Ma, Qianli
AU  - Tietz, Frank
AU  - Komissinskiy, Philipp
AU  - Jaegermann, Wolfram
AU  - Hausbrand, René
TI  - Interfaces in solid-state sodium-ion batteries: NaCoO$_2$ thin films on solid electrolyte substrates
JO  - Electrochimica acta
VL  - 268
SN  - 0013-4686
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2018-04621
SP  - 226 - 233
PY  - 2018
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000427657600025
DO  - DOI:10.1016/j.electacta.2018.02.109
UR  - https://juser.fz-juelich.de/record/850870
ER  -