For decades researchers and technologists have regarded batteries and capacitors as two distinct energy storage devices — batteries, known for storing more energy but releasing it slowly; capacitors, ...

In this video, we take a closer look at the current state of batteries and supercapacitors, particularly in light of Tesla’s recent acquisition of Maxwell Technologies. We explore the concept of ...

A new battery-supercapacitor hybrid system will go online soon in Philadelphia, aimed at providing split-second power on-demand to the entire city and running the subway network at the same time.

Materials engineers at Monash University in Australia have devised a method of producing graphene supercapacitors that have the same energy density as the lead-acid battery under your car's hood. Not ...