The rest of them. Lithium is only the electrolyte. They also need cathode and anode materials.
Specific energy of gasoline: 46.4 MJ/kg
Specific energy of high end Li-ion batteries: 1.3 MJ/kg
Specific energy of gasoline: 46.4 MJ/kg
Specific energy of high end Li-ion batteries: 1.3 MJ/kg