Lithium intercalation into bilayer graphene

Kemeng Ji; Jiuhui Han; Akihiko Hirata; Takeshi Fujita; Yuhao Shen; Shoucong Ning; Pan Liu; Hamzeh Kashani; Yuan Tian; Yoshikazu Ito; Jun ichi Fujita; Yutaka Oyama

doi:10.1038/s41467-018-07942-z

Lithium intercalation into bilayer graphene

Kemeng Ji, Jiuhui Han, Akihiko Hirata, Takeshi Fujita, Yuhao Shen, Shoucong Ning, Pan Liu, Hamzeh Kashani, Yuan Tian, Yoshikazu Ito, Jun ichi Fujita, Yutaka Oyama

Graduate School of Fundamental Science and Engineering

Research output: Contribution to journal › Article

19 Citations (Scopus)

Abstract

The real capacity of graphene and the lithium-storage process in graphite are two currently perplexing problems in the field of lithium ion batteries. Here we demonstrate a three-dimensional bilayer graphene foam with few defects and a predominant Bernal stacking configuration, and systematically investigate its lithium-storage capacity, process, kinetics, and resistances. We clarify that lithium atoms can be stored only in the graphene interlayer and propose the first ever planar lithium-intercalation model for graphenic carbons. Corroborated by theoretical calculations, various physiochemical characterizations of the staged lithium bilayer graphene products further reveal the regular lithium-intercalation phenomena and thus fully illustrate this elementary lithium storage pattern of two-dimension. These findings not only make the commercial graphite the first electrode with clear lithium-storage process, but also guide the development of graphene materials in lithium ion batteries.

Original language	English
Article number	275
Journal	Nature communications
Volume	10
Issue number	1
DOIs	https://doi.org/10.1038/s41467-018-07942-z
Publication status	Published - 2019 Dec 1

ASJC Scopus subject areas

Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
Physics and Astronomy(all)

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Ji, K., Han, J., Hirata, A., Fujita, T., Shen, Y., Ning, S., Liu, P., Kashani, H., Tian, Y., Ito, Y., Fujita, J. I., & Oyama, Y. (2019). Lithium intercalation into bilayer graphene. Nature communications, 10(1), [275]. https://doi.org/10.1038/s41467-018-07942-z

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AU - Hirata, Akihiko

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AU - Ning, Shoucong

AU - Liu, Pan

AU - Kashani, Hamzeh

AU - Tian, Yuan

AU - Ito, Yoshikazu

AU - Fujita, Jun ichi

AU - Oyama, Yutaka

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