Cover Page - Molecular-Cling-Effect of Fluoroethylene Carbonate Characterized via Ethoxy(pentafluoro)cyclotriphosphazene on SiOx/C Anode Materials – A New Perspective for Formerly Sub-Sufficient SEI Forming Additive Compounds

Ghaur, Adjmal; Pfeiffer, Felix; Diddens, Diddo; Peschel, Christoph; Dienwiebel, Iris; Du, Leilei; Profanter, Laurin; Weiling, Matthias; Winter, Martin; Placke, Tobias; Nowak, Sascha; Baghernejad, Masoud

Zusammenfassung

In article number 2302486, Martin Winter, Masoud Baghernejad, and co-workers investigate the complementary effect of fluoroethylene carbonate (FEC) and ethoxy(pentafluoro) cyclotriphosphazene as additive compounds in an aprotic organic electrolyte in NCM523 II SiOx/C pouch cells. The authors discuss a novel property of FEC, here called molecular-cling-effect (MCE) and verified it with multiple analysis techniques. Also they thoroughly discuss the electrochemical impact of the additives on the cell performance and the relevant underlying reaction mechanisms.