| Structural Reversibility of Nanoscaled Sn Anodes | |
| Su, Yi1,2; Lei, Xincheng3; Han, Zhen3; Liu, Haowen1,2; Xiao, Jianhua1,2; Su, Yipeng1,2; Ren, Shuaiyang1,2; Lin, Yitao1,2; Hu, Qingmiao4; Yang, Rui4; Zhou, Gang4; Su, Dong3; Zhang, Yuegang1,2,5 | |
| 通讯作者 | Zhou, Gang(gzhou@imr.ac.cn) ; Su, Dong(dongsu@iphy.ac.cn) ; Zhang, Yuegang(yuegang.zhang@tsinghua.edu.cn) |
| 2024-04-18 | |
| 发表期刊 | NANO LETTERS
 |
| ISSN | 1530-6984 |
| 卷号 | 24期号:17页码:5332-5341 |
| 摘要 | Alloying-type anode materials provide high capacity for lithium-ion batteries; however, they suffer pulverization problems resulting from the volume change during cycling. Realizing the cycling reversibility of these anodes is therefore critical for sustaining their electrochemical performance. Here, we investigate the structural reversibility of Sn NPs during cycling at atomic-level resolution utilizing in situ high-resolution TEM. We observed a surprisingly near-perfect structural reversibility after a complete cycle. A three-step phase transition happens during lithiation, accompanied by the generation of a significant number of defects, grain boundaries, and up to 202% volume expansion. In subsequent delithiation, the volume, morphology, and crystallinity of the Sn NPs were restored to their initial state. Theoretical calculations show that compressive stress drives the removal of vacancies generated within the NPs during delithiation, therefore maintaining their intact morphology. This work demonstrates that removing vacancies during cycling can efficiently improve the structural reversibility of high-capacity anode materials. |
| 关键词 | Sn nanoparticles in situ TEM phase transition structural reversibility vacancyremoval |
| 资助者 | National Natural Science Foundation of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; Beijing Innovation Center for Future Chips, Tsinghua University ; Chinese Academy of Sciences ; National Supercomputing Center in Zhengzhou |
| DOI | 10.1021/acs.nanolett.4c01183 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[2022YFA1203400] ; National Natural Science Foundation of China[2020YFB2007400] ; National Key R&D Program of China[22150710516] ; National Key R&D Program of China[22209202] ; National Key R&D Program of China[22075317] ; National Key R&D Program of China[52101277] ; National Natural Science Foundation of China[XDB33030200] ; Beijing Innovation Center for Future Chips, Tsinghua University ; Chinese Academy of Sciences ; National Supercomputing Center in Zhengzhou |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS记录号 | WOS:001240874700001 |
| 出版者 | AMER CHEMICAL SOC |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/186809 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Zhou, Gang; Su, Dong; Zhang, Yuegang |
| 作者单位 | 1.Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China 2.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 3.Chinese Acad Sci, Inst Phys, Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 5.Frontier Sci Ctr Quantum Informat, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Yi,Lei, Xincheng,Han, Zhen,et al. Structural Reversibility of Nanoscaled Sn Anodes[J]. NANO LETTERS,2024,24(17):5332-5341. |
| APA | Su, Yi.,Lei, Xincheng.,Han, Zhen.,Liu, Haowen.,Xiao, Jianhua.,...&Zhang, Yuegang.(2024).Structural Reversibility of Nanoscaled Sn Anodes.NANO LETTERS,24(17),5332-5341. |
| MLA | Su, Yi,et al."Structural Reversibility of Nanoscaled Sn Anodes".NANO LETTERS 24.17(2024):5332-5341. |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论