Quasi‐Zero Volume Strain Cathode Materials for Sodium Ion Battery through Synergetic Substitution Effect of Li and Mg

• Published in: Advanced functional materials Vol. 33; no. 41
• Main Authors: Shen, Ming‐Yuan, Wang, Jing‐Song, Ren, Zhouhong, Wu, Tao, Liu, Xi, Chen, Liwei, Li, Wen‐Cui, Lu, An‐Hui
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc 01.10.2023
• Subjects: Cathodes; Crystal structure; Cycles; Electrode materials; High voltages; Materials science; Oxygen atoms; Phase transitions; Sodium; Sodium-ion batteries; Structural stability; Substitutes; Transition metals

P2‐type layered oxide material Na 2/3 Ni 1/3 Mn 2/3 O 2 is a competitive candidate for sodium‐ion batteries (SIBs). Nevertheless, it suffers from the strong P2–O2 phase transition during charging to the high voltage regime, rendering drastic volume variations and poor cycling performance. Here, a Qu...