Journalartikel

Autorenliste: Zuo, TT; Walther, F; Ahmed, S; Ruess, R; Hertle, J; Mogwitz, B; Volz, K; Janek, J

Jahr der Veröffentlichung: 2023

Seiten: 1322-1329

Zeitschrift: ACS Energy Letters

Bandnummer: 8

Heftnummer: 3

ISSN: 2380-8195

DOI Link: https://doi.org/10.1021/acsenergylett.2c02835

Verlag: American Chemical Society

Abstract: 
Sulfide-based electrolytes and Ni-rich cathode materials (i.e., LiNixCoyMn1-x-yO2, x >= 0.8) are considered as promising materials for high-performance solid-state batteries. However, their poor chemical compatibility causes stability issues and fast capacity fading, particularly at high potentials. Here, we propose a coating concept inspired by the natural cathode-electrolyte interphase (CEI) formation to overcome the degradation at the solid electrolyte-cathode active material interface. An artificial CEI (coating) is derived from sulfide-based electrolytes prior to cell assembly by a dry-coating approach combined with a heat treatment. A proof-of-concept using Li3PS4 and Li6PS5Cl as precursors confirms the interfacial stability. Accordingly, the Li6PS5Cl-derived coating enables a capacity retention of 84% after 100 cycles (2.6-4.5 V vs Li+/Li). Overall, this work emphasizes the suitability and the (as yet unexploited) great potential of this coating concept to suppress interfacial degradation in sulfide-based composite cathodes.

Harvard-Zitierstil: Zuo, T., Walther, F., Ahmed, S., Ruess, R., Hertle, J., Mogwitz, B., et al. (2023) Formation of an Artificial Cathode-Electrolyte Interphase to Suppress Interfacial Degradation of Ni-Rich Cathode Active Material with Sulfide Electrolytes for Solid- State Batteries, ACS Energy Letters, 8(3), pp. 1322-1329. https://doi.org/10.1021/acsenergylett.2c02835

APA-Zitierstil: Zuo, T., Walther, F., Ahmed, S., Ruess, R., Hertle, J., Mogwitz, B., Volz, K., & Janek, J. (2023). Formation of an Artificial Cathode-Electrolyte Interphase to Suppress Interfacial Degradation of Ni-Rich Cathode Active Material with Sulfide Electrolytes for Solid- State Batteries. ACS Energy Letters. 8(3), 1322-1329. https://doi.org/10.1021/acsenergylett.2c02835