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Precursor-driven Jahn–Teller distortion as a hidden origin of surface instability in Mn-stabilized Ni-rich cathodes

Energy Environ. Sci., 2026, 19,3845-3864
DOI: 10.1039/D6EE00713A, Paper
JinHa Shim, Young Geol Yu, Yu Bin Choi, Jin Ho Bang
Interfacial destabilization caused by a chemically unstable Jahn–Teller distorted Mn4βˆ’x–O coordination environment was observed for the first time in high-Ni cathodes due to surface Mn oxidation in the precursor stage.
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