**Layered P3-Type K₀.₄Fe₀.₁Mn₀.₈Ti₀.₁O₂ as a Low-Cost and Zero-Strain Electrode Material for Potassium and Sodium Storage**
Layered transition metal oxides have emerged as promising candidates for potassium-ion (KIB) and sodium-ion (NIB) battery cathodes due to their high theoretical capacities, suitable working potentials, and scalable synthesis routes.…