Mesoporous Reduced Graphene Oxide as a High Capacity Cathode for Aluminum Batteries

Jasmin Smajic, Amira Alazmi, Nitinkumar Batra, Tamilarasan Palanisamy, Dalaver H. Anjum, Pedro M. F. J. Da Costa

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Research in the field of aluminum batteries has focused heavily on electrodes made of carbonaceous materials. Still, the capacities reported for these multivalent systems remain stubbornly low. It is believed that a high structural quality of graphitic carbons and/or specific surface areas of >1000 m2 g-1 are key factors to obtain optimal performance and cycling stability. Here an aluminum chloride battery is presented in which reduced graphene oxide (RGO) powder, dried under supercritical conditions, is used as the active cathode material and niobium foil as the current collector. With a specific surface area of just 364 m2 g-1, the RGO enables a gravimetric capacity of 171 mAh g-1 at 100 mA g-1 and remarkable stability over a wide range of current densities (
Original languageEnglish (US)
Pages (from-to)1803584
JournalSmall
Volume14
Issue number51
DOIs
StatePublished - Oct 25 2018

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