3D Graphitic Foams Derived from Chloroaluminate Anion Intercalation for Ultrafast Aluminum-Ion Battery.

Wu, Yingpeng; Gong, Ming; Lin, Meng-Chang; Yuan, Chunze; Angell, Michael; Huang, Lu; Wang, Di-Yan; Zhang, Xiaodong et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

A 3D graphitic foam vertically aligned graphitic structure and a low density of defects is derived through chloroaluminate anion intercalation of graphite followed by thermal expansion and electrochemical hydrogen evolution. Such aligned graphitic structure affords excellent Al-ion battery characteristics with a discharge capacity of ≈60 mA h g<sup>-1</sup> under a high charge and discharge current density of 12 000 mA g<sup>-1</sup> over ≈4000 cycles.