Hybrid Ribbons (IMAGE) Rice University Caption Graphene-coated ribbons of vanadium oxide, seen in a scanning electron microscope image, might be the best electrode for lithium-ion batteries yet tested, according to researchers at Rice University. Credit Ajayan Group/Rice University Usage Restrictions For news reporting purposes only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.