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Sozak, Mutlucan ; Zhao, Chen ; Moos, Ralf:
Electrochemical properties of powder aerosol co-deposited NaCrO₂/C binder-free composite cathodes for sodium-ion batteries.
2025
Veranstaltung: SBS6 - International Sodium Battery Symposium
, 3.9.-4.9.2025
, Dresden.
(Veranstaltungsbeitrag: Kongress/Konferenz/Symposium/Tagung
,
Poster
)
Abstract
Post-lithium batteries are currently in the spotlight as a promising solution to the rising pricesof lithium sources. Sodium-based layered intercalation compounds have attracted attention foruse as cathode active materials in rechargeable sodium-ion batteries. The accessibility ofsodium resources and the ease of synthesis of rock salt structured NaCrO2 (NCO) puts it forward as a positive electrode material due to its structural stability and favourable electrochemical properties. Powder Aerosol Deposition (PAD) is a room temperature powder spraying process for the production of dense ceramic films, allowing control of film thickness. With the flexibility of simultaneously depositing two different powders on metal substrates as current collectors, this method may pave the way for the fabrication of binder-free composite cathodes in a relatively short time. In this work, NCO powders were synthesised by the solid state route and the cathode active material was mixed with glassy carbon as a conductive additive in a planetary ball mill in an 80:20 wt% ratio. The NCO/C composite mixture powder aerosol was co-deposited on stainless steel substrates via PAD. Coin cells assembled in an argon-filled glove box with Na|1M NaPF6 EC:EMC 30:70 wt%|NCO/C configuration. The rate capability and long-term cycling stability of NCO/C PAD cathodes were investigated. We demonstrate successful deposition of NCO/C cathodes on stainless steel at room temperature without binder addition.
Weitere Angaben
| Publikationsform: | Veranstaltungsbeitrag (Poster) |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Funktionsmaterialien > Lehrstuhl Funktionsmaterialien - Univ.-Prof. Dr.-Ing. Ralf Moos Profilfelder > Advanced Fields > Neue Materialien Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen > Bayreuther Materialzentrum - BayMAT Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen > Bayerisches Zentrum für Batterietechnik - BayBatt |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 25 Sep 2025 07:08 |
| Letzte Änderung: | 25 Sep 2025 07:08 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/94783 |