| アイテムタイプ |
default_学術雑誌論文 / Journal Article(1) |
| タイトル |
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タイトル |
An Electron/Ion Dual Conductive Integrated Cathode Using Cationic/Anionic Redox for High‐Energy‐Density All‐Solid‐State Lithium‐Sulfur Batteries |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
all-solid-state lithium-sulfur batteries |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
ionic-electronic conductive cathodes |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
synchrotron X-ray analyses |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
metadata only access |
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アクセス権URI |
http://purl.org/coar/access_right/c_14cb |
| 著者 |
Pan Wenli
Yamamoto Kentaro
Matsunaga Toshiyuki
Toshiki Watanabe
Kumar Mukesh
Thakur Neha
Uchiyama Tomoki
Uesugi Masayuki
Takeuchi Akihisa
Sakuda Atsushi
Hayashi Akitoshi
Tatsumisago Masahiro
Uchimoto Yoshiharu
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
All-solid-state lithium-sulfur batteries (ASSLSB), composed of sulfur cathode and lithium metal anode with high theoretical capacity, have a potentially higher energy density by weight than a typical lithium-ion battery (LIB). However, due to insulating sulfur, a relatively large proportion of electronic (carbon) and ionic (solid electrolyte) conductors are mixed for cathode fabrication, leading to inferior practical capacity. Herein, we report a novel integrated cathode Li<sub>2</sub>S-LiI-MoS<sub>2</sub> which has relatively high electronic and ionic conductivities (the order of 10<sup>−4</sup> S cm<sup>−1</sup>) without any carbon and solid electrolyte. The ASSLSB with integrated Li<sub>2</sub>S-LiI-MoS<sub>2</sub> cathode delivers a remarkably high energy density of 1020 Wh kg<sup>−1</sup> at the cathode level at room temperature. By applying precise X-ray diffraction, pair distribution function analysis and X-ray computed tomography, it is found that the formation of an ionic conducting phase composed mainly of LiI during discharge is responsible for the high rate capability. Furthermore, X-ray absorption fine structure (XAFS) has also revealed the charge compensation mechanism and ascertained the involvement of both Mo 3d and S 3p orbitals during the charging and discharging process. It is believed the strategy will pave the way for developing high practical energy density at room temperature for all-solid-state batteries. |
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言語 |
en |
| bibliographic_information |
en : Batteries & Supercaps
巻 7,
号 1,
p. e202300427,
発行日 2024
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| 出版者 |
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出版者 |
Wiley-VCH GmbH |
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言語 |
en |
| item_10001_source_id_9 |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
2566-6223 |
| item_10001_relation_14 |
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識別子タイプ |
DOI |
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関連識別子 |
10.1002/batt.202300427 |
| 権利 |
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権利情報 |
© Wiley-VCH GmbH |
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言語 |
en |
| 出版タイプ |
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出版タイプ |
NA |
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出版タイプResource |
http://purl.org/coar/version/c_be7fb7dd8ff6fe43 |
https://doi.org/10.1002/batt.202300427
