Solid Power, Inc. engages in the manufacture and supply of power batteries. The firm develops 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. It focuses on the development and commercialization of all-solid-state battery cells and solid electrolyte materials, primarily for the battery-powered electric vehicle market. The company was founded on August 3, 2011 and is headquartered in Louisville, CO.