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Solid Electrolyte Screening

Accelerate solid-state battery development by pre-screening electrolyte candidates. Analyze LLZO, LGPS, sulfides, and novel compositions for thermodynamic stability, raw material cost, and synthesis complexity.

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The Solid-State Battery Challenge

Solid-state batteries promise higher energy density and improved safety, but finding the right solid electrolyte remains challenging. Matproof helps you rapidly evaluate candidate compositions before committing to synthesis.

Supported Electrolyte Families

  • Garnets - Li7La3Zr2O12 (LLZO) and doped variants (Ta, Al, Nb substitutions)
  • Sulfides - Li3PS4, Li6PS5Cl (argyrodites), Li10GeP2S12 (LGPS)
  • NASICON-type - Li1.3Al0.3Ti1.7(PO4)3 (LATP), Li1.5Al0.5Ge1.5(PO4)3 (LAGP)
  • Perovskites - Li3xLa2/3-xTiO3 (LLTO)
  • Anti-perovskites - Li3OCl, Li3OBr

Key Metrics for Electrolyte Selection

  1. Phase Stability - Is the target phase thermodynamically stable or metastable?
  2. Critical Materials - Does it contain Ge, La, or other constrained elements?
  3. Cost Analysis - Raw material cost per kg of electrolyte
  4. Synthesis Route - Solid-state, sol-gel, or melt-quench recommended?

Example: Screening LLZO Dopants

Evaluate the effect of Ta doping on LLZO stability:

  • Li7La3Zr2O12 (undoped cubic LLZO)
  • Li6.75La3Zr1.75Ta0.25O12 (0.25 Ta)
  • Li6.5La3Zr1.5Ta0.5O12 (0.5 Ta)
  • Li6.25La3Zr1.25Ta0.75O12 (0.75 Ta)

Each formula returns stability and cost metrics, helping identify optimal dopant levels.

Frequently Asked Questions

What solid electrolyte types does Matproof support?

Matproof analyzes all major solid electrolyte families including garnets (LLZO, Li7La3Zr2O12 variants), sulfides (Li3PS4, LGPS, argyrodites), NASICON-types (Li1.3Al0.3Ti1.7(PO4)3), and perovskites. Enter any composition to get instant analysis.

Can Matproof predict ionic conductivity?

Our current analysis focuses on thermodynamic stability, cost, and synthesis feasibility. Ionic conductivity depends on microstructure and processing, which requires experimental validation. However, stable phases are prerequisites for achieving good conductivity.

How do I screen LLZO dopant variations?

Simply enter the doped formula like Li6.75La3Zr1.75Ta0.25O12 or Li6.5La3Zr1.5Ta0.5O12. Matproof will analyze each composition for stability and cost, helping you identify the most promising dopant concentrations.

Are sulfide electrolytes flagged for air sensitivity?

Yes. Our synthesis feasibility analysis notes that sulfide-based electrolytes (containing S, P-S bonds) require inert atmosphere handling. This is factored into the synthesis method recommendations.

Screen Your Electrolyte Candidates

100 free queries per month. Accelerate your solid-state battery R&D.

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