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Nano-vault architecture mitigates stress in silicon-based anodes for lithium-ion batteries
https://oist.repo.nii.ac.jp/records/2047
https://oist.repo.nii.ac.jp/records/2047f6b2e773-fd46-430c-b69b-432cf88f101d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Haro-2021-Nano-vault architecture mitigates st (2.1 MB)
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Creative Commons Attribution 4.0 International(https://creativecommons.org/licenses/by/4.0/)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2021-05-12 | |||||
| タイトル | ||||||
| タイトル | Nano-vault architecture mitigates stress in silicon-based anodes for lithium-ion batteries | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者（英） |
Haro, Marta
× Haro, Marta× Kumar, Pawan× Zhao, Junlei× Koutsogiannis, Panagiotis× Porkovich, Alexander James× Ziadi, Zakaria× Bouloumis, Theodoros× Singh, Vidyadhar× Juarez-Perez, Emilio J.× Toulkeridou, Evropi× Nordlund, Kai× Djurabekova, Flyura× Sowwan, Mukhles× Grammatikopoulos, Panagiotis |
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| 書誌情報 |
en : Communications Materials 巻 2, 号 1, p. 16, 発行日 2021-02-05 |
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| 抄録 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Nanomaterials undergoing cyclic swelling-deswelling benefit from inner void spaces that help accommodate significant volumetric changes. Such flexibility, however, typically comes at a price of reduced mechanical stability, which leads to component deterioration and, eventually, failure. Here, we identify an optimised building block for silicon-based lithium-ion battery (LIB) anodes, fabricate it with a ligand- and effluent-free cluster beam deposition method, and investigate its robustness by atomistic computer simulations. A columnar amorphous-silicon film was grown on a tantalum-nanoparticle scaffold due to its shadowing effect. PeakForce quantitative nanomechanical mapping revealed a critical change in mechanical behaviour when columns touched forming a vaulted structure. The resulting maximisation of measured elastic modulus (~120 GPa) is ascribed to arch action, a well-known civil engineering concept. The vaulted nanostructure displays a sealed surface resistant to deformation that results in reduced electrode-electrolyte interface and increased Coulombic efficiency. More importantly, its vertical repetition in a double-layered aqueduct-like structure improves both the capacity retention and Coulombic efficiency of the LIB. | |||||
| 出版者 | ||||||
| 出版者 | Nature Portfolio | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2662-4443 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1038/s43246-021-00119-0 | |||||
| 権利 | ||||||
| 権利情報 | © 2021 The Author(s). | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.nature.com/articles/s43246-021-00119-0 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
