De Carolis, Dario M. ; Vrankovic, Dragoljub ; Kiefer, Samira A. ; Bruder, Enrico ; Dürrschnabel, Michael Thomas ; Molina‐Luna, Leopoldo ; Graczyk‐Zajac, Magdalena ; Riedel, Ralf (2024)
Towards a Greener and Scalable Synthesis of Na₂Ti₆O₁₃ Nanorods and Their Application as Anodes in Batteries for Grid‐Level Energy Storage.
In: Energy Technology : Generation, Conversion, Storage, Distribution, 2021, 9 (1)
doi: 10.26083/tuprints-00017782
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
Grid applications require high power density (for frequency regulation, load leveling, and renewable energy integration), achievable by combining multiple batteries in a system without strict high capacity requirements. For these applications however, safety, cost efficiency, and the lifespan of electrode materials are crucial. Titanates, safe and longevous anode materials providing much lower energy density than graphite, are excellent candidates for this application. The innovative molten salt synthesis approach proposed in this work provides exceptionally pure Na₂Ti₆O₁₃ nanorods generated at 900–1100 °C in a yield ≥80 wt%. It is fast, cost‐efficient, and suitable for industrial upscaling. Electrochemical tests reveal stable performance providing capacities of ≈100 mA h g⁻¹ (Li) and 40 mA h g⁻¹ (Na). Increasing the synthesis temperature to 1100 °C leads to a capacity decrease, most likely resulting from 1) the morphology/volume change with the synthesis temperature and 2) distortion of the Na₂Ti₆O₁₃ tunnel structure indicated by electron energy‐loss and Raman spectroscopy. The suitability of pristine Na₂Ti₆O₁₃ as the anode for grid‐level energy storage systems has been proven a priori, without any performance‐boosting treatment, indicating considerable application potential especially due to the high yield and low cost of the synthesis route.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | De Carolis, Dario M. ; Vrankovic, Dragoljub ; Kiefer, Samira A. ; Bruder, Enrico ; Dürrschnabel, Michael Thomas ; Molina‐Luna, Leopoldo ; Graczyk‐Zajac, Magdalena ; Riedel, Ralf |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Towards a Greener and Scalable Synthesis of Na₂Ti₆O₁₃ Nanorods and Their Application as Anodes in Batteries for Grid‐Level Energy Storage |
| Sprache: | Englisch |
| Publikationsjahr: | 30 Januar 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2021 |
| Ort der Erstveröffentlichung: | Weinheim |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Energy Technology : Generation, Conversion, Storage, Distribution |
| Jahrgang/Volume einer Zeitschrift: | 9 |
| (Heft-)Nummer: | 1 |
| Kollation: | 11 Seiten |
| DOI: | 10.26083/tuprints-00017782 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/17782 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | Grid applications require high power density (for frequency regulation, load leveling, and renewable energy integration), achievable by combining multiple batteries in a system without strict high capacity requirements. For these applications however, safety, cost efficiency, and the lifespan of electrode materials are crucial. Titanates, safe and longevous anode materials providing much lower energy density than graphite, are excellent candidates for this application. The innovative molten salt synthesis approach proposed in this work provides exceptionally pure Na₂Ti₆O₁₃ nanorods generated at 900–1100 °C in a yield ≥80 wt%. It is fast, cost‐efficient, and suitable for industrial upscaling. Electrochemical tests reveal stable performance providing capacities of ≈100 mA h g⁻¹ (Li) and 40 mA h g⁻¹ (Na). Increasing the synthesis temperature to 1100 °C leads to a capacity decrease, most likely resulting from 1) the morphology/volume change with the synthesis temperature and 2) distortion of the Na₂Ti₆O₁₃ tunnel structure indicated by electron energy‐loss and Raman spectroscopy. The suitability of pristine Na₂Ti₆O₁₃ as the anode for grid‐level energy storage systems has been proven a priori, without any performance‐boosting treatment, indicating considerable application potential especially due to the high yield and low cost of the synthesis route. |
| Freie Schlagworte: | anode materials, grid storage, lithium, molten salt synthesis, sodium |
| ID-Nummer: | 2000856 |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-177824 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Physikalische Metallkunde |
| Hinterlegungsdatum: | 30 Jan 2024 13:53 |
| Letzte Änderung: | 31 Jan 2024 07:42 |
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- Towards a Greener and Scalable Synthesis of Na₂Ti₆O₁₃ Nanorods and Their Application as Anodes in Batteries for Grid‐Level Energy Storage. (deposited 30 Jan 2024 13:53) [Gegenwärtig angezeigt]
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