| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-10-22 |
| タイトル |
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タイトル |
A Practical and Sustainable Ni/Co-Free High-Energy Electrode Material: Nanostructured LiMnO2 |
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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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主題 |
Chemical structure, Electrodes, Ions, Phase transitions, Transition metals(en) |
| 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 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
Miyaoka, Yuka
| en |
Miyaoka, Yuka
Department of Chemistry and Life Science, Yokohama National University
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Search repository
Sato, Takahito
| en |
Sato, Takahito
Department of Applied Chemistry, Tokyo Denki University
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Search repository
Oguro, Yuna
| en |
Oguro, Yuna
Department of Chemistry and Life Science, Yokohama National University
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Search repository
Kondo, Sayaka
| en |
Kondo, Sayaka
Frontier Research Institute for Materials Science (FRIMS), Nagoya Institute of Technology
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Search repository
Nakano, Koki
| en |
Nakano, Koki
Frontier Research Institute for Materials Science (FRIMS), Nagoya Institute of Technology
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Search repository
Nakayama, Masanobu
Ugata, Yosuke
ORCID
0000-0002-8233-6725
e-Rad_Researcher
70975367
| en |
Ugata, Yosuke
Department of Chemistry and Life Science, Yokohama National University
Advanced Chemical Energy Research Center, Institute of Advanced Sciences
|
Search repository
Goonetilleke, Damian
Sharma, Neeraj
Glushenkov, M., Alexey
Hiroi, Satoshi
Ohara, Koji
Takada, Koji
Fujii, Yasuhiro
Yabuuchi, Naoaki
ORCID
0000-0002-9404-5693
e-Rad_Researcher
80529488
| en |
Yabuuchi, Naoaki
Department of Chemistry and Life Science, Yokohama National University
Advanced Chemical Energy Research Center, Institute of Advanced Sciences, Yokohama National University
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Search repository
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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 |
Ni/Co-free high-energy positive electrode materials are of great importance to ensure the sustainability of Li-ion battery production and its supply chain in addition to minimizing environmental impact. Here, nanostructured LiMnO2 with both orthorhombic/monoclinic layered domains is synthesized, and its lithium storage properties and mechanism are examined. High-energy mechanical milling is used to convert the metastable and nanosized LiMnO2 adopting the cation-disordered rocksalt structure to an optimal domain-segregated layered LiMnO2. This positive electrode produces an energy density of 820 W h kg–1, achieved by harnessing a large reversible capacity with relatively small voltage hysteresis on electrochemical cycles. Moreover, voltage decay for cycling, as observed for Li-excess Mn-based electrode materials, is effectively mitigated. Furthermore, by determining the structure–property relationships of different LiMnO2 polymorphs, LiMnO2 with similar domain structure and surface area is successfully synthesized with an alternative and simpler method, without the metastable precursor and high-energy mechanical milling. The cyclability of domain-containing LiMnO2 is also improved with the use of a highly concentrated electrolyte coupled with a lithium phosphate coating due to the suppression of Mn dissolution. These findings maximize the possibility of the development of high-energy, low-cost, and practical rechargeable batteries made from sustainable and abundant Mn sources without Ni/Co. |
|
言語 |
en |
| 書誌情報 |
en : ACS Central Science
巻 10,
号 9,
p. 1718-1732,
ページ数 15,
発行日 2024-09-25
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| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
23747943 |
| DOI |
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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/acscentsci.4c00578 |
| 権利 |
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言語 |
en |
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権利情報Resource |
https://creativecommons.org/licenses/by/4.0/ |
|
権利情報 |
Creative Commons Attribution 4.0 International |
| 著者版フラグ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 出版者 |
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出版者 |
American Chemical Society (ACS) |
miyaoka-et-al-2024-a-practical-and-sustainable-ni-co-free-high-energy-electrode-material-nanostructured-limno2.pdf (8.1 MB)
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