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 ...

Modern life relies on electricity and electrical devices, from cars and buses to phones and laptops, to the electrical systems in homes. Behind many of these devices is a type of energy storage device ...

Supercapacitors—also known as ultracapacitors—store energy similarly to batteries. However, they dispense power extremely quickly instead of over hours. As high-power-density energy storage systems, ...

(Nanowerk Spotlight) Inside the human digestive tract, an electronic capsule can now generate its own electricity using recycled seaweed, power small electronic devices, with the duration depending on ...