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New graphene-based super-capacitors last as long as lead-acid batteries

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Researcher from Australia’s Monash University developed new graphene-based supercapacitors that feature high energy density – in fact about 12 times higher than commercially available capacitors. These supercapacitors last as long as a conventional battery (lead-acid).

The researchers used an adaptive graphene gel film, developed at Monash in 2012. They used liquid electrolytes to control the spacing between graphene sheets on the sub-nanometre scale. Those electrolytes played a dual role: maintaining the minute space between the graphene sheets and conducting electricity. In this new electrode design, the density is maximized without compromising porosity.



Source: http://www.graphene-info.com/new-graphene-based-super-capacitors-last-long-lead-acid-batteries

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