Improved Li<sup>+</sup> Storage through Homogeneous N-Doping within Highly Branched Tubular Graphitic Foam.

Dong, Jinyang; Xue, Yanming; Zhang, Chao; Weng, Qunhong; Dai, Pengcheng; Yang, Yijun; Zhou, Min; Li, Cuiling et al. · Adv Mater · 2017

basic_science · Level V

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Abstract

A novel carbon structure, highly branched homogeneous-N-doped graphitic (BNG) tubular foam, is designed via a novel N, N-dimethylformamide (DMF)-mediated chemical vapor deposition method. More structural defects are found at the branched portions as compared with the flat tube domains providing abundant active sites and spacious reservoirs for Li<sup>+</sup> storage. An individual BNG branch nanobattery is constructed and tested using in situ transmission electron microscopy and the lithiation process is directly visualized in real time.