Top-Story of Elettra Synchrotron Trieste


Batteries – Interfacial chemical reactions and stability in 5V Lithium Ion Cells

Our research published recently in ACS Applied Materials and Interfaces demonstrates a high stability of LiCoPO4 tailored with LiCo2P3O10 (LCP-LCPO) as cathode material for Li-ion batteries upon electrochemical cycling to 5.1 V vs. Li+/Li. In contrast, the MoO3 coating layer on the top of the LCP−LCPO cathode undergoes chemical reactions with the electrolyte resulting in leaching of the oxide layer.

This work was selected as TOP-STORY of the Elettra Synchrotron Source.

G. Cherkashinin, R. Eilhardt, S. Nappini, M. Cococcioni, I. Píš, S. dal Zilio, F. Bondino, N. Marzari, E. Magnano, and L. Alff
Energy Level Alignment at the Cobalt Phosphate/Electrolyte Interface: Intrinsic Stability vs Interfacial Chemical Reactions in 5 V Lithium Ion Batteries
doi: 10.1021/acsami.1c16296
ACS Appl. Mater. Interfaces 14, 543-556 (2022)