Chinese scientists have successfully developed a supercapacitor with better energy capacity using nitrogen and graphene-like carbon.

"We are able to make carbon a much better supercapacitor," said Huang Fuqiang, a material chemist at the the Shanghai Institute of Ceramics.

The new material will enable electric vehicles travel 35 kilometers after charging for just seven seconds, said the research team from the institute.

Details of the research were published in the latest issue of the journal "Science."