The first battery was the “voltaic pile”, invented by Alessandro Volta in 1800. In subsequent years, the technology was constantly developed and improved. Since then, chemists have tested every imaginable material in the search for a new type of battery. Lithium-ion, sulphur, sodium-ion and lithium-air batteries, the research keeps moving forward. The search for alternative power is breathing new life into batteries. Great Inventions navigates the energy storage jungle.