| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2023-02-25 |
| タイトル |
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タイトル |
Role of SiOx in rice-husk-derived anodes for Li-ion batteries |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 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 |
| 作成者 |
Abe, Yusuke
Tomioka, Masahiro
Kabir, Mahmudul
Kumagai, Seiji
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| 内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
The present study investigated the role of SiOx in a rice-husk-derived C/SiOx anode on the rate and cycling performance of a Li-ion battery. C/SiOx active materials with different SiOx contents (45, 24, and 5 mass%) were prepared from rice husk by heat treatment and immersion in NaOH solution. The C and SiOx specific capacities were 375 and 475 mAh g(-1), respectively. A stable anodic operation was achieved by pre-lithiating the C/SiOx anode. Full-cells consisting of this anode and a Li(Ni-0.5,Co-0.2,Mn-0.3) O-2 cathode displayed high initial Coulombic efficiency (similar to 85%) and high discharge specific capacity, indicating the maximum performance of the cathode (similar to 150 mAh g(-1)). At increased current density, the higher the SiOx content, the higher the specific capacity retention, suggesting that the time response of the reversible reaction of SiOx with Li ions is faster than that of the C component. The full-cell with the highest SiOx content exhibited the largest decrease in cell specific capacity during the cycle test. The structural decay caused by the volume expansion of SiOx during Li-ion uptake and release degraded the cycling performance. Based on its high production yield and electrochemical benefits, degree of cycling performance degradation, and disadvantages of its removal, SiOx is preferably retained for Li-ion battery anode applications. |
|
言語 |
en |
| 出版タイプ |
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出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 書誌情報 |
en : SCIENTIFIC REPORTS
巻 12,
発行日 2022
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| 収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2045-2322 |
| 出版者 |
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出版者 |
Nature Research |
|
言語 |
en |
| 関連情報 |
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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/10.1038/s41598-022-04979-5 |
| 権利情報 |
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権利情報 |
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. © The Author(s) 2022 |
riA_2022_29.pdf (3.1 MB)
