High-Temperature Phase Behavior of Li2O-MnO with a Focus on the Liquid-to-Solid Transition

• DOI: 10.1007/s11837-023-06179-6
• Publication Date: 2023-10-13T16:01:43Z
• Authors: Haojie Li; Marko Ranneberg; Michael Fischlsch...
• Keywords: CALPHAD; Inert gas; Inert; Thermal Stability

Abstract The Li-Mn-O system is a crucial constituent of cathode materials used in lithium-ion batteries (LIBs). Numerous research teams have focused on enhancing its electrochemical properties and thermal stability at lower temperatures to develop high-performance materials. However, the recycling LIBs pyrometallurgical processing, high temperature phase behavior important. Today, there still lack systematic understanding regarding high-temperature under well-defined atmospheric conditions, which highly sought after process route increase efficiency lithium from spent LIBs. In this study, we investigate pseudo binary Li 2 O-MnO inert atmosphere. Thermal caloric are measured as well contact angle identify solid-liquid transition. Based obtained behavior, thermodynamic database within Calphad framework developed, where liquid modelled by Modified Quasichemical Model (MQM).