Solid-state batteries: high-performance, low-cost and safe
What’s keeping people from buying electric vehicles? Many are concerned about:
- price tag
- driving range
- charging time
All three objections are linked to the safety limits of conventional lithium-ion batteries that use a liquid electrolyte.
Switching to batteries with a solid electrolyte can radically change the outlook for electrical vehicles. Research indicates that solid-state batteries could reach an energy density of 1200 Wh/L – enough to drive from Belgium to the south of France on a single charge. Recharging would only take 20 minutes. Finally, solid-state batteries would be low-cost and entirely safe.
SOLiDIFY: towards commercially available solid-state batteries
Right now, the fabrication of solid-state battery cells is at TRL (technology readiness level) 3: demonstration in the lab. The goal of the SOLiDIFY project is to elevate it to TRL 6: demonstration of prototypes in a pilot line.
The core objectives of the project relate to:
- cell performance: an energy density of more than 1200 Wh/l, charging time of 20 minutes and lifetime of more than 1000 cycles
- safety: reduced flammability in a temperature range from -40°C to +300°C and stable chemistry because of advanced coatings
- cost: less than € 100/Kwh
- sustainability: lower cobalt content and a water-based manufacturing process
That goal is to achieve these objectives by 2024.