| 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 |
Double-Layered Perovskite Oxyfluoride Cathodes with High Capacity Involving O–O Bond Formation for Fluoride-Ion 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 fluoride-ion battery |
| 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 |
intercalation cathode |
| 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 |
perovskite oxyfluoride |
| 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 |
O–O bond formation |
| 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 |
Miki Hidenori
Yamamoto Kentaro
Nakaki Hiroyuki
Yoshinari Takahiro
Nakanishi Koji
Nakanishi Shinji
Iba Hideki
Miyawaki Jun
Harada Yoshihisa
Kuwabara Akihide
Wang Yanchang
Watanabe Toshiki
Matsunaga Toshiyuki
Maeda Kazuhiko
Kageyama Hiroshi
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 |
Developing electrochemical high-energy storage systems is of crucial importance toward a green and sustainable energy supply. A promising candidate is fluoride-ion batteries (FIBs), which can deliver a much higher volumetric energy density than lithium-ion batteries. However, typical metal fluoride cathodes with conversion-type reactions cause a low-rate capability. Recently, layered perovskite oxides and oxyfluorides, such as LaSrMnO<sub>4</sub> and Sr<sub>3</sub>Fe<sub>2</sub>O<sub>5</sub>F<sub>2</sub>, have been reported to exhibit relatively high rate performance and cycle stability compared to typical metal fluoride cathodes with conversion-type reactions, but their discharge capacities (∼118 mA h/g) are lower than those of typical cathodes used in lithium-ion batteries. Here, we show that double-layered perovskite oxyfluoride La<sub>1.2</sub>Sr<sub>1.8</sub>Mn<sub>2</sub>O<sub>7−δ</sub>F<sub>2</sub> exhibits (de) intercalation of two fluoride ions to rock-salt slabs and further (de) intercalation of excess fluoride ions to the perovskite layer, leading to a reversible capacity of 200 mA h/g. The additional fluoride-ion intercalation leads to the formation of O–O bond in the structure for charge compensation (i.e., anion redox). These results highlight the layered perovskite oxyfluorides as a new class of active materials for the construction of high-performance FIBs. |
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言語 |
en |
| bibliographic_information |
en : Journal of the American Chemical Society
巻 146,
号 6,
p. 3844-3853,
ページ数 8,
発行日 2024-01-09
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| 出版者 |
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出版者 |
American Chemical Society |
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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 |
1520-5126 |
| item_10001_relation_14 |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1021/jacs.3c10871 |
| 権利 |
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権利情報 |
© American Chemical Society |
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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 |
