A spinel high-entropy oxide with 20-40% oxygen vacancies enables 310-1400 nm photodetection while avoiding multi-material complexity.
Lowering sulfur in the active material to 0.68 wt% or less prevents spray-dryer nozzle clogging during niobium coating production.
Rapid drying and anion exchange produce uniform amorphous ceramics below 400°C while avoiding crystallization and phase separation.
A Li3InCl6 coating isolates LNMO from the electrolyte to suppress Mn dissolution while preserving ionic conductivity and cycle stability.