A battery’s best friend is a capacitor. Powering everything from smartphones to electric vehicles, capacitors store energy from a battery in the form of an electrical charge and enable ultrafast charging and discharging. However, their Achilles’ heel has always been their limited energy storage efficiency. Now, Washington University in St. Louis researchers have unveiled a Read more about Capacitor Breakthrough: 19-Fold Increase in Energy Storage Potential – could kill batteries[…]