Engineered for
the fleet.
TaiSan builds next-generation sodium batteries around a novel polymer electrolyte — making cells smaller, lighter, cheaper and inherently safer than today's lithium-ion.
Lithium is dangerous, expensive, unsustainable.First-generation sodium cells are too heavy and too large to replace it.Our solid-state electrolyte fixes both.
The result is a sodium cell with the energy density of premium lithium-ion, the safety of a solid state architecture, and a bill of materials made entirely from earth-abundant elements.
Read the science
lighter & compact
Our polymer chemistry strips out heavy liquid electrolyte and inactive packaging — fitting 20–30% more energy into the same pack volume.
drop-in for existing fleets
Standard form factors that swap straight into e-bikes and scooters built around lithium-ion or lead-acid — no chassis change.
safe by chemistry
No flammable solvent. Stable from −40 °C to +80 °C. Designed around the failure modes that ground fleets and burn warehouses.
Built for the segment that lithium hurts most.
E-bikes & shared mobility
Swappable packs from 0.25 to 1.5 kWh for urban and trekking e-bikes.
E-scooters & mopeds
0.5–2 kWh modules engineered for shared-fleet swap rhythms.
Power tools & light vehicles
High-discharge cells for the tools and small EVs lithium can't be insured into.