Research Articles

State of Solid-State Batteries in 2025: What the Data Actually Shows

Solid-state batteries promise higher energy density, faster charging, and improved safety over liquid electrolyte cells. But computational screening of 14,000+ candidate electrolytes and analysis of 340 patent filings reveals a gap between press releases and material reality. Here is what the data says about sulfide, oxide, and polymer electrolyte families — and which approaches are closest to commercialization.