Critical element

Germanium (Ge)

Germanium can improve sulfide solid electrolyte performance and semiconductor behavior, but its strategic supply profile makes substitution important.

Supply signal
High concern: germanium availability and concentration can make Ge-rich materials hard to commercialize at scale.
Affected applications
  • LGPS-family solid electrolytes
  • Infrared and semiconductor materials
  • High-value functional ceramics
Patent note
Germanium-rich electrolyte work should include a substitution map and claim strategy around lower-Ge or Ge-free variants.
Substitution map

Candidate Substitute Materials

These are not automatic replacements. They are starting points for warehouse-backed screening across stability, synthesis, patent, and supply signals.
Related pages

Material Classes and Screens