A battery can hold a lot of energy, but it takes a long time to charge it. A capacitor can be charged very quickly, but doesn't hold a comparable amount of energy.

A graphene super capacitor is the best of both: it takes just seconds to charge, yet stores a lot of energy. Imagine being able to charge your spent laptop or phone battery in 30 seconds, and your electric car in a few minutes. Also, unlike batteries, Graphene supercapacitors are non-toxic.

The Nobel Prize was awarded to the inventors of Graphene in 2010. Wikipedia defines Graphene as a "substance composed of pure carbon, with atoms arranged in a regular hexagonal pattern similar to graphite, but in a one-atom thick sheet. It is very light, with a 1-square-meter sheet weighing only 0.77 milligrams."

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source: http://boingboing.net/2013/02/21/graphene-supercapacitors-could.html

Moral lesson?

tosnat: Moral lesson?

Didn't you read it
In a few more years, capacitors would replace batteries in our electronic devices.

Imagine being able to charge your phone from 0% to 100% within 2minitues.

okay..

Wow,i hope dis is out by d time samsung's 5G will be made public by 2017,

ninja4life: Wow,i hope dis is out by d time samsung's 5G will be made public by 2017,

It is already out but more developments need to be made because their energy density still falls short when compared to batteries... Fingers crossed by 2015.