Owing to the low cost and high abundance of sodium, sodium-based batteries, especially those employing metallic sodium anodes, are considered for post-lithium energy storage. In order to develop high-performance and long-lasting sodium-metal batteries, however, the reversible Na-metal stripping and plating challenge must be addressed. Most organic electrolytes suffer from non-uniform and continuous formation of the solid electrolyte interphase as well as unfavorable dendritic growth. The use of sodium cyclopentadienide dissolved in tetrahydrofuran as the electrolyte reveals an improved reversibility of sodium dissolution and electrodeposition combined with an electrochemical stability window of around 2.2 V vs. Na/Na+ and an ionic conductivity of 1.36 mS cm−1 at 25 °C. Furthermore, the plated electrodes showed a remarkable morphology of the Na deposits, that is, no dendrite formation, whereby the above-mentioned electrolyte could overcome the aforementioned cycling issues, thus suggesting suitability for further studies. © 2020 The Authors. ChemElectroChem published by Wiley-VCH GmbH

Sodium cyclopentadienide as a new type of electrolyte for sodium batteries / Binder, M.; Mandl, M.; Zaubitzer, S.; Wohlfahrt-Mehrens, M.; Passerini, S.; Böse, O.; Danzer, M. A.; Marinaro, M.. - In: CHEMELECTROCHEM. - ISSN 2196-0216. - 8:2(2021), pp. 365-369. [10.1002/celc.202001290]

Sodium cyclopentadienide as a new type of electrolyte for sodium batteries

Passerini, S.;
2021

Abstract

Owing to the low cost and high abundance of sodium, sodium-based batteries, especially those employing metallic sodium anodes, are considered for post-lithium energy storage. In order to develop high-performance and long-lasting sodium-metal batteries, however, the reversible Na-metal stripping and plating challenge must be addressed. Most organic electrolytes suffer from non-uniform and continuous formation of the solid electrolyte interphase as well as unfavorable dendritic growth. The use of sodium cyclopentadienide dissolved in tetrahydrofuran as the electrolyte reveals an improved reversibility of sodium dissolution and electrodeposition combined with an electrochemical stability window of around 2.2 V vs. Na/Na+ and an ionic conductivity of 1.36 mS cm−1 at 25 °C. Furthermore, the plated electrodes showed a remarkable morphology of the Na deposits, that is, no dendrite formation, whereby the above-mentioned electrolyte could overcome the aforementioned cycling issues, thus suggesting suitability for further studies. © 2020 The Authors. ChemElectroChem published by Wiley-VCH GmbH
File allegati a questo prodotto
File Dimensione Formato  
Binder_Sodium Cyclopentadienide_2020.pdf

accesso aperto

Note: https://doi-org.ezproxy.uniroma1.it/10.1002/celc.202001290
Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Creative commons
Dimensione 900.25 kB
Formato Adobe PDF
900.25 kB Adobe PDF Visualizza/Apri PDF

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1600242
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact