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Construction of a Unique Two-Dimensional Hierarchical Carbon Architecture for Superior Lithium-Ion Storage

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journal contribution
posted on 23.11.2016, 00:00 by Zhijie Wang, Xiaoliang Yu, Wenhui He, Yusuf Valentino Kaneti, Da Han, Qi Sun, Yan-Bing He, Bin Xiang
Two-dimensional nanocarbons are intriguing functional materials for energy storage. However, the serious aggregation problems hinder their wider applications. To address this issue, we developed a unique two-dimensional hierarchical carbon architecture (2D-HCA) with ultrasmall graphene-like carbon nanosheets uniformly grown on hexagonal carbon nanoplates. The obtained 2D-HCA shows an interconnected porous structure and abundant heteroelement doping. When employed as anode for lithium ion batteries, it exhibits a high discharge capacity of 748 m Ah g–1 even after 400 cycles at 2 A g–1.