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Graphene ribbons could boost efficiency of Li-ion batteries

New research suggests hybrid ribbons of vanadium oxide and graphene could be the best electrode yet for lithium-ion (Li-ion) batteries.

A team from Rice University found that cathodes made from the material could be charged and discharged in just 20 seconds while still retaining more than 90% of their initial capacity after more than 1,000 cycles.

“This is the direction battery research is going, not only for something with high energy density but also high power density,” said materials scientist Pulickel Ajayan. “It’s somewhere between a battery and a supercapacitor.
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