Project K Energy, Inc.

Project K is developing a potassium-ion battery that is lithium-free, low-cost, energy-efficient, and long-lived for grid-scale energy storage. The innovation combines old and new battery features, like a Prussian blue analog (PBA) cathode with a graphite anode and an electrolyte composed of a small-molecule organic solvent; conductive salts; and stabilizing additive into a device with an architecture that is essentially identical to that of contemporary, mass-produced lithium-ion batteries.