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Hye Ryung Byon, Betar M. Gallant, Seung Woo Lee and Yang Shao-Horn Role of Oxygen Functional Groups in Carbon Nanotube/Graphene Freestanding Electrodes for High Performance Lithium Batteries Advanced Functional Materials 23

Article first published online: 8 JUN 2012 | DOI: 10.1002/adfm.201200697

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Free-standing electrodes of hierarchically structured oxygen-functionalized multiwalled carbon nanotubes and graphene oxide are shown to deliver high volumetric energies up to 450 Wh L−1 at 5 kW L−1 in lithium cells, which are attributable to high mass densities (>1 g cm−3) and controllable utilization of surface oxygen species for Li+ Faradaic reactions.

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