Electrochemical behaviors of lithium intercalation and de-intercalation into and out of B/C materials as anodes of LIBs

Shotaro Nagakura; Yukako Kouge; Masae Yoshida; Kazuma Gotoh; Ishin Nishimura; Masayuki Kawaguchi

doi:10.7209/carbon.020205

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Electrochemical behaviors of lithium intercalation and de-intercalation into and out of B/C materials as anodes of LIBs

Shotaro Nagakura, Yukako Kouge, Masae Yoshida, Kazuma Gotoh, Ishin Nishimura, Masayuki Kawaguchi

著者情報

キーワード: B/C material, Electrochemical intercalation of Li, Reversible capacity, XRD, NMR

ジャーナル認証あり早期公開

論文ID: 020205

DOI https://doi.org/10.7209/carbon.020205

この記事には本公開記事があります。

The final version of this article is now available: Vol. 2 (2023), No. 2 pp. 123-129

詳細

抄録

Boron/carbon materials (B/C materials) having graphite-like layered structure were prepared and characterized as the anodes of lithium (Li) ion batteries (LIBs). Li was electrochemically intercalated and de-intercalated into and out of the host B/C materials, respectively. The material with a composition of BC_7.9 showed the highest reversible capacity about 580 mAh/g among the materials prepared in this study. Ex-situ XRD study indicated that the intercalation of Li into the layers of B/C materials occurred during the discharge process to form finally first stage compound. ⁷Li and ¹¹B-NMR observations suggested that the intercalated Li had an interaction with the boron in B/C materials. This interaction could make larger capacities of B/C materials as the anodes of LIBs.

責任著者(Corresponding author)

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