A lithium-ion capacitor is a supercapacitor with a high energy density — up to about 20 Wh/kg which is roughly four times higher than a conventional supercapacitor and five times lower than a lithium-ion battery. The anode is usually graphite containing (intercalated with) lithium ions. General Capacitor in Florida was at the show with these units. They have a pouch form factor. The smaller version is a 200 F capacitor that operates up to 3.8 V and has a 30 mΩ internal resistance. It can discharge 10 A. The larger version is a 3,000 F unit. It also works up to 3.8 V and will supply 150 A. Its internal resistance is 2 mΩ.