Solid Power Incorporated ( formerly Decarbonization Plus Acquisition Corp III) develops all-solid-state battery cells and solid electrolyte materials, primarily for the EV market. The company is developing all-solid-state battery cell technology that replaces the liquid or gel polymer electrolyte used in conventional lithium-ion battery cells with a sulfide-based solid electrolyte. Solid Power was founded in 2011 and is headquartered in Louisville, CO.