Fig. 1. Schematic and characterization of Nb2O5 coatings on SC-NMC cathode particles by rotary-bed ALD.
A Schematic of ALD equipped with a rotary-bed attachment, ALD process for depositing a 5 nm thick amorphous Nb2O5 coating on SC-NMC particles, and composite cathode assembly. B High-resolution TEM micrograph showing amorphous Nb2O5 coating and layered (R-3m) structure of an SC-NMC particle. FFTs from marked regions are also presented. C HDAAF-STEM EDS maps showing conformal Nb2O5 coating and distribution of elements in an SC-NMC particle. XPS core scans corresponding to (D) Nb 3d peak (E) O 1s peak from Nb2O5-coated SC-NMC powder.