Nucleation-density-regulated dimensional evolution of growth unit from 2D nanosheets to 1D nanoneedles in self-assembled hierarchical NiCo2O4 for enhanced lithium storage

We present a supersaturation-driven nucleation-density-regulated strategy for precise dimension-tuning in self-assembled hierarchical NiCo 2 O 4 . This approach provides new insights into the growth mechanism and reveals unique electrochemical behaviors.