Journalartikel

Autorenliste: Pagot, G; Kieser, JA; Brombin, F; Vezzu, K; Janek, J; Noto, VD

Jahr der Veröffentlichung: 2023

Zeitschrift: Journal of Power Sources

Bandnummer: 565

ISSN: 0378-7753

eISSN: 1873-2755

Open Access Status: Hybrid

DOI Link: https://doi.org/10.1016/j.jpowsour.2023.232910

Verlag: Elsevier

Abstract: 
The quest for the development of high performing secondary batteries is prompting the research activities in this field towards the exploitation of new cell concepts. In this concern, next-generation secondary batteries based on multivalent metals such as magnesium and tin are an important promise. In this report, a new family of multivalent metal-based ionic liquid (IL) electrolytes is developed. The proposed ILs are obtained by reacting 1butyl-1-methylpyrrolidinium chloride (Pyr(14)Cl), dimethyl-tin dichloride and the highly electroactive d-MgCl2 material. Thermal and vibrational spectroscopy studies reveal that the proposed electrolytes consist of domains of complex catenated 3D magnesium-organochlorostannate coordination networks neutralized by aggregates of Pyr(14)(+) stacks. The anionic domains are composed by a network of catenated [Me2xSnxCl2x+y]y-repeat units bonded by MgClx bridges. Cyclic voltammetry studies reveal that the metal deposition and stripping processes occur with a low overpotential in the order of few tens of mV. Finally, broadband electrical spectroscopy studies show that these new IL electrolytes: (i) are characterized by a room temperature ionic conductivity in the order of 10(- 3) S cm(- 1); and (ii) exhibit host matrix relaxations which are very effective in facilitating the long-range charge migration processes responsible for the overall conductivity of materials.

Harvard-Zitierstil: Pagot, G., Kieser, J., Brombin, F., Vezzu, K., Janek, J. and Noto, V. (2023) Catenated pyrrolidinium-magnesium-organochlorostannate ionic liquid electrolytes for multivalent metal batteries, Journal of Power Sources, 565, Article 232910. https://doi.org/10.1016/j.jpowsour.2023.232910

APA-Zitierstil: Pagot, G., Kieser, J., Brombin, F., Vezzu, K., Janek, J., & Noto, V. (2023). Catenated pyrrolidinium-magnesium-organochlorostannate ionic liquid electrolytes for multivalent metal batteries. Journal of Power Sources. 565, Article 232910. https://doi.org/10.1016/j.jpowsour.2023.232910