Company Profile

Project K personnel organize around developing to commercial condition a potassium-ion battery capable of operating similarly to lithium-ion batteries. During discharge, potassium ions move from negative graphite electrode through electrolyte—a liquid combining organic solvents, dissolved conductive salts, and specialty additives—to positive electrode containing a Prussian blue analog material synthesized from low-cost and abundant raw materials. Potassium ions can migrate through the electrolyte much faster than lithium ions. Additionally, the thermodynamics of the reaction of potassium ion with graphite allows much higher currents to be applied to the cell. These two fundamental properties of the potassium-ion system allow it to charge much faster than lithium-ion batteries while also enabling operation at reduced temperatures. Potential Impact: EVs4ALL’s primary objective is to increase the domestic adoption of new and used EVs by enabling safe, resilient, fast-charging batteries with improved performance at low temperatu