Supercapacitors that employ a graphene-based layer instead of soot from burnt coconut shells have the potential to replace lithium-ion batteries in automotive vehicles and other applications, Peter Harrop of IDTechEx writes. "There is plenty of development space ahead as we move from such things as carbon form carbide, which has a bit of graphene -- and most other things -- in it to properly tailored and mounted sheets of one atom thickness," he writes.

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