Sn‐Driven Grain Boundary Elimination for Single‐Crystalline Ni‐Rich Cathodes with Superior High‐Voltage Stability in Lithium‐Ion Batteries
ABSTRACT Single‐crystalline Ni‐rich cathodes are regarded as promising candidates for high‐energy‐density lithium‐ion batteries (LIBs), providing superior mechanical and structural stability compared to polycrystalline counterparts. In this work, we present a low‐temperature grain‐boundary‐elimination approach to synth...