At 94 years old, John B. Goodenough isn't done changing the landscape of battery technology. The University of Texas at Austin professor who's widely credited for the invention of lithium-ion batteries has developed a better alternative. Goodenough, Cockrell School senior research fellow Maria Helena Braga and their team have created a low-cost solid state battery that's safer than lithium-ion. It stores thrice as much energy, which means more miles for electric vehicles in between charges. When you do need to charge, it can be done minutes instead of hours. Plus, it can withstand a greater number of charge and discharge cycles.