Structural Evolution in Disordered Rock Salt Cathodes

• Published in: Journal of the American Chemical Society Vol. 146; no. 35; pp. 24296 - 24309
• Main Authors: Li, Tianyu, Geraci, Tullio S., Koirala, Krishna Prasad, Zohar, Arava, Bassey, Euan N., Chater, Philip A., Wang, Chongmin, Navrotsky, Alexandra, Clément, Raphaële J.
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 04.09.2024; American Chemical Society (ACS)
• Subjects: Diffraction; Electrodes; Phase transitions; Spinel; Transition metals

Li-excess Mn-based disordered rock salt oxides (DRX) are promising Li-ion cathode materials owing to their cost-effectiveness and high theoretical capacities. It has recently been shown that Mn-rich DRX Li1+x Mn y M1–x–y O2 (y ≥ 0.5, M are hypervalent ions such as Ti4+ and Nb5+) exhibit a gradual ca...