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Xin Zhao, Cary M. Hayner, Mayfair C. Kung and Harold H. Kung In-Plane Vacancy-Enabled High-Power Si–Graphene Composite Electrode for Lithium-Ion Batteries Advanced Energy Materials 1

Article first published online: 6 OCT 2011 | DOI: 10.1002/aenm.201100426

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Introducing a high density of in-plane, nanometer-sized carbon vacancies in graphene sheets greatly enhances ion diffusion across the sheets in a Si–graphene composite. The flexible, self-supporting three-dimensional conducting graphenic scaffold incorporating Si nanoparticles exhibit excellent rate performance and tolerance to structural deformation, which represents an attractive high power-high capacity anode material for Li-ion batteries.

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