Improving the cycling performance of LiNi0.8Co0.15Al0.05O2 cathode materials via zirconium and fluorine co-substitution

• Published in: Journal of alloys and compounds Vol. 806; pp. 136 - 145
• Main Authors: Qiu, Zhenping, Liu, Zheng, Fu, Xingjie, Liu, Jiaming, Zeng, Qingguang
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 25.10.2019; Elsevier BV
• Subjects: Cathodes; Cations; Co-substitution; Crystal structure; Cycling stability; Decay rate; Electrochemical analysis; Electrode materials; Electrode polarization; Energy of dissociation; Fluorine; Free energy; Heat of formation; LiNi0.8Co0.15Al0.05O2 cathode materials; Lithium; Lithium ions; Lithium-ion battery; Morphology; Nickel; Structural stability; Substitutes; Transition metal oxides; Transition metals; X ray photoelectron spectroscopy; Zirconium; LiNi0.8Co0.15Al0.05O2 cathode materials; Lithium-ion battery; Cycling stability; Co-substitution

High-nickel layered transition-metal oxides with large reversible capacity typically suffer from crystal instability and fast capacity decay during cycling. Herein, we report a co-substitution strategy using traditional solid state sintering technology to incorporate zirconium (Zr) and fluorine (F)...