Kodiaq Technologies, a University of Cambridge spin-out developing organic, metal-free electrolytes for long-duration energy storage, has raised £850,000 from more than 20 high-net-worth investors.

The funding will help the company refine its UK-developed electrolytes, which it says can boost flow-battery energy density and cut the cost per unit of storage compared with lithium or vanadium systems.

Kodiaq’s capital-light plan is to retrofit existing flow batteries first, then co-develop next-generation systems with OEMs and integrators, aiming for pilot deployments ahead of a larger raise in mid-2026.