Analysis of the discharge/charge mechanism in VS4 positive electrode material

Kazuto Koganei; Atsushi Sakuda; Tomonari Takeuchi; Hikari Sakaebe; Hironori Kobayashi; Hiroyuki Kageyama; Tomoya Kawaguchi; Hisao Kiuchi; Koji Nakanishi; Masashi Yoshimura; Toshiaki Ohta; Toshiharu Fukunaga; Eiichiro Matsubara

doi:10.1016/j.ssi.2018.05.010

Analysis of the discharge/charge mechanism in VS₄ positive electrode material

Kazuto Koganei, Atsushi Sakuda, Tomonari Takeuchi, Hikari Sakaebe, Hironori Kobayashi, Hiroyuki Kageyama, Tomoya Kawaguchi, Hisao Kiuchi, Koji Nakanishi, Masashi Yoshimura, Toshiaki Ohta, Toshiharu Fukunaga, Eiichiro Matsubara

研究成果: ジャーナルへの寄稿 › 学術誌 › 査読

15 被引用数 (Scopus)

抄録

Among transition metal sulfides, VS₄ is a promising candidate material for the positive electrode in rechargeable Li/metal-sulfide batteries, due to its long, flat plateau at about 2.0 V and its high theoretical capacity (1195 mAh g⁻¹). In this study, we prepared VS₄ positive electrode material by heating in a sealed tube, and studied local structural changes during charge/discharge cycles via X-ray absorption and scattering spectroscopies, focusing on the reversibility of VS₄. The findings reveal that a VS₄-like local structure was formed in the first cycle, and that subsequent cycles showed reversible changes.

本文言語	英語
ページ（範囲）	32-36
ページ数	5
ジャーナル	Solid State Ionics
巻	323
DOI	https://doi.org/10.1016/j.ssi.2018.05.010
出版ステータス	出版済み - 10月 1 2018
外部発表	はい

!!!All Science Journal Classification (ASJC) codes

化学 (全般)
材料科学（全般）
凝縮系物理学

文献へのアクセス

10.1016/j.ssi.2018.05.010

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引用スタイル

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title = "Analysis of the discharge/charge mechanism in VS4 positive electrode material",

abstract = "Among transition metal sulfides, VS4 is a promising candidate material for the positive electrode in rechargeable Li/metal-sulfide batteries, due to its long, flat plateau at about 2.0 V and its high theoretical capacity (1195 mAh g−1). In this study, we prepared VS4 positive electrode material by heating in a sealed tube, and studied local structural changes during charge/discharge cycles via X-ray absorption and scattering spectroscopies, focusing on the reversibility of VS4. The findings reveal that a VS4-like local structure was formed in the first cycle, and that subsequent cycles showed reversible changes.",

author = "Kazuto Koganei and Atsushi Sakuda and Tomonari Takeuchi and Hikari Sakaebe and Hironori Kobayashi and Hiroyuki Kageyama and Tomoya Kawaguchi and Hisao Kiuchi and Koji Nakanishi and Masashi Yoshimura and Toshiaki Ohta and Toshiharu Fukunaga and Eiichiro Matsubara",

note = "Funding Information: This work was financially supported by the New Energy and Industrial Technology Development Organization (NEDO) under the RISING2 project. Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

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T1 - Analysis of the discharge/charge mechanism in VS4 positive electrode material

AU - Koganei, Kazuto

AU - Sakuda, Atsushi

AU - Takeuchi, Tomonari

AU - Sakaebe, Hikari

AU - Kobayashi, Hironori

AU - Kageyama, Hiroyuki

AU - Kawaguchi, Tomoya

AU - Kiuchi, Hisao

AU - Nakanishi, Koji

AU - Yoshimura, Masashi

AU - Ohta, Toshiaki

AU - Fukunaga, Toshiharu

AU - Matsubara, Eiichiro

N1 - Funding Information: This work was financially supported by the New Energy and Industrial Technology Development Organization (NEDO) under the RISING2 project. Publisher Copyright: © 2018 Elsevier B.V.

PY - 2018/10/1

Y1 - 2018/10/1

N2 - Among transition metal sulfides, VS4 is a promising candidate material for the positive electrode in rechargeable Li/metal-sulfide batteries, due to its long, flat plateau at about 2.0 V and its high theoretical capacity (1195 mAh g−1). In this study, we prepared VS4 positive electrode material by heating in a sealed tube, and studied local structural changes during charge/discharge cycles via X-ray absorption and scattering spectroscopies, focusing on the reversibility of VS4. The findings reveal that a VS4-like local structure was formed in the first cycle, and that subsequent cycles showed reversible changes.

AB - Among transition metal sulfides, VS4 is a promising candidate material for the positive electrode in rechargeable Li/metal-sulfide batteries, due to its long, flat plateau at about 2.0 V and its high theoretical capacity (1195 mAh g−1). In this study, we prepared VS4 positive electrode material by heating in a sealed tube, and studied local structural changes during charge/discharge cycles via X-ray absorption and scattering spectroscopies, focusing on the reversibility of VS4. The findings reveal that a VS4-like local structure was formed in the first cycle, and that subsequent cycles showed reversible changes.

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