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.