Revealing the Role, Mechanism, and Impact of AlF3 Coatings on the Interphase of Silicon Thin Film Anodes (Adv. Energy Mater. 41/2022)

Adhitama, Egy; van Wickeren, Stefan; Neuhaus, Kerstin; Frankenstein, Lars; Demelash, Feleke; Javed, Atif; Haneke, Lukas; Nowak, Sascha; Winter, Martin; Gomez-Martin, Aurora; Placke, Tobias

Zusammenfassung

Solid Electrolyte Interphases In article number 2201859, Aurora Gomez-Martin, Tobias Placke, and co-workers discuss the role, mechanism, and impact of AlF3 coating on Si thin film anodes. The observations were done in different (de-)lithiation states. AlF3 transforms to Li-Al-F compounds with higher ionic conductivity, thus, increasing cycling stability. This study provides significant insights into the solid electrolyte interphase behavior with regard to the functional coating layer.