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Fabrication of dense NaSICON solid electrolyte films via aerosol deposition method

Title data

Sozak, Mutlucan ; Nazarenus, Tobias ; Exner, Jörg ; Kita, Jaroslaw ; Moos, Ralf:
Fabrication of dense NaSICON solid electrolyte films via aerosol deposition method.
2022
Event: Keramik 2022 : 97. DKG-Jahrestagung , 07.03.-09.03.2022 , online.
(Conference item: Conference , Speech )

Abstract in another language

Solid-state batteries are promising energy storage devices that can be widely used in near future in stationary and mobile applications. Commercial lithium ion batteries contain liquid electrolytes, which need to be replaced with nonflammable solid electrolytes to provide increased safety. NaSICON solid electrolytes have gained much attention in recent years for their remarkable electric and chemical properties. One of the most attractive candidates for sodium ion conductive solid electrolytes is NaSICON regarding its low cost and abundant resources. The powder aerosol deposition (PAD) method enables to deposit dense films (> 95% of theoretical density) in the μm-range at room temperature on a wide variety of substrate materials. Therefore, it is to be expected that dense NaSICON solid electrolytes can be deposited with high deposition rates cost effectively by utilizing this method in contrast to conventional methods that require a final sintering step. In the current work, we produced NaSICON solid electrolyte powders by the mixed oxide technique using a planetary ball mill. X-ray diffraction analyses including Rietveld refinement were carried out on the calcined powders. The powders with the desired phase were sprayed on different substrates via PAD. Subsequently, characterization of the electrical properties of thin films and evaluation of the effect of annealing temperature on the ionic conductivity of NaSICON PAD films were presented. Our work demonstrates a successful room temperature application of dense NaSICON electrolyte films on different substrates, which is promising for stationary energy storage applications of solid-state sodium batteries.

Further data

Item Type: Conference item (Speech)
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Research Institutions > Research Centres > Bayerisches Zentrum für Batterietechnik - BayBatt
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 29 Mar 2022 08:42
Last Modified: 29 Mar 2022 08:42
URI: https://eref.uni-bayreuth.de/id/eprint/69053