Factorial Energy
Solid-state cells tested by Mercedes-Benz and Stellantis
Ranked #4 in Best Solid-State Battery Companies.
Factorial Energy, founded in 2018, develops lithium-metal solid-state cells for vehicles, aerospace and data centres. It began trading on Nasdaq under the ticker FAC on 8 June 2026 after a SPAC merger valuing it at about $1.3 billion.
At a glance
| Price from | Custom |
| Best for | Automakers wanting cells already proven in road tests |
From Factorial Energy's own website.
What stands out
- Real-world road testing with Mercedes-Benz
- Several automaker partners
Worth knowing
- Not yet in volume production
- Price not published
How it ranks
Factorial Energy is ranked 4th of 10 in Best Solid-State Battery Companies (Lister Score 93.3).
#4 in Best Solid-State Battery Companies · Lister Score 93.3
A Mercedes-Benz EQS fitted with Factorial cells drove 1,205 km from Stuttgart to Malmo on one charge in September 2025..
| Rank | Best Solid-State Battery Companies | Score |
|---|---|---|
| 1 | QuantumScape | 97.0 |
| 2 | Toyota | 95.9 |
| 3 | Samsung SDI | 94.6 |
| 4 | Factorial Energy | 93.3 |
| 5 | Solid Power | 92.0 |
| 6 | ProLogium | 90.6 |
| 7 | CATL | 89.2 |
| 8 | Blue Solutions | 87.8 |
| 9 | Ilika | 86.3 |
| 10 | Ion Storage Systems | 85.0 |
Frequently asked questions
How does Factorial Energy rank on Lister?
Factorial Energy is ranked 4th of 10 in Best Solid-State Battery Companies (Lister Score 93.3).
Appears in
Add this badge to your site
If you work at Factorial Energy, paste this code into your website to show where it ranks on Lister. The badge links to the ranking and updates within a day when the rank changes.