Tiamat Energy

Tiamat Energy’s NASICON cathode cells achieve 30C continuous and 100C pulse discharge, making them the fastest-charging sodium-ion option for power tools, UPS, and data centers. Gen1 cells provide 90 to 110 Wh/kg with over 5,000 cycles, while Gen2 targets 140 to 160 Wh/kg. Compared to #8 Altris’s Prussian White cells, Tiamat sacrifices 50 Wh/kg in energy density for 60 times faster charging via 100C pulses. Founded in 2017 in Amiens as a CNRS spin-off, the company secured $30 million in January 2024 from investors including Stellantis and Arkema. A 5 GWh gigafactory planned for 2029 will produce 500,000 cells daily, with 1.5 GW power output targeted for mid-2027. First 700 MWh/year phase shifted to 2026.