Stress‐Induced Anomalous Lithiation Plateau of LiFe<i><sub>y</sub></i>Mn<sub>1−</sub><i><sub>y</sub></i>PO<sub>4</sub> Over High‐Rate Discharging (Adv. Energy Mater. 10/2025)
Enhao Xu, Tuan Wang, Jinxuan Chen, Jie Hu, Haijun Xia, Hao Wu, Wenlong Cai, Qianyu Zhang, Yun Zhang, Kaipeng Wu
Abstract
Cathode Materials In article number 2404929, Kaipeng Wu and co-workers demonstrate that the anomalous lithiation plateau of LiFeyMn1−yPO4 originates from stress concentration occurring at the interface between particle surface and bulk during rapid lithium insertion. This stress alleviates the lattice distortion of MnO6 octahedra, thereby enhancing the Li+ diffusion kinetics and eventually unlocking the capacity of Mn3+.
Topics & Concepts
Materials sciencePlateau (mathematics)Stress (linguistics)Energy (signal processing)PhysicsLinguisticsPhilosophyMathematicsMathematical analysisQuantum mechanicsAdvancements in Battery MaterialsElectrical and Thermal Properties of Materials