Open Materials Challenge: Find a Solid-State Battery Electrolyte, Get It Verified

2026-10-19 · VIDRAFT AI Media

aimaterialsbatteriesscience

TL;DR

The Open Materials Challenge Season 1 asks for a solid-state battery electrolyte. You submit a crystal structure; the verifier relaxes it and scores it.

Scoring

Axis Weight Question
Oxidation stability 40 Does it survive on the cathode side?
Lithium metal stability 35 Does it survive against lithium metal?
Novelty of use 25 Is this composition new for this purpose?

Novelty is judged for the application. A known compound used as an electrolyte for the first time can score.

Gates, not gradients

Some properties are pass or fail. A structure with no percolating lithium path is not an electrolyte, so lithium mobility is an entry requirement rather than a ranked axis. The other gates: at most 60 atoms, at most 0.10 eV/atom above the convex hull, a band gap of at least 1.0 eV, and lithium must be present. A rejected entry is shown as rejected, not left looking like a queue.

Reproducibility

Relaxation is not bit-reproducible, so the pipeline keeps the best result seen for a submission instead of overwriting it with a noisier rerun.

Rules and limits: github.com/final-bench/open-materials-challenge

These are computational predictions, not experimental measurements. A high score is a hypothesis worth synthesising and testing.