Integrated structure of tin-based anodes enhancing high power density and long cycle life for lithium ion batteries
Article
Chen, Lei, Weng, Yuehua, Meng, Yiming, Dou, Fei, An, Zhongxun, Song, Pingan, Chen, Guorong and Zhang, Dengsong. 2020. "Integrated structure of tin-based anodes enhancing high power density and long cycle life for lithium ion batteries." ACS Applied Energy Materials. 3 (9), pp. 9337-9347. https://doi.org/10.1021/acsaem.0c01688
| Article Title | Integrated structure of tin-based anodes enhancing high power density and long cycle life for lithium ion batteries |
|---|---|
| ERA Journal ID | 211583 |
| Article Category | Article |
| Authors | Chen, Lei (Author), Weng, Yuehua (Author), Meng, Yiming (Author), Dou, Fei (Author), An, Zhongxun (Author), Song, Pingan (Author), Chen, Guorong (Author) and Zhang, Dengsong (Author) |
| Journal Title | ACS Applied Energy Materials |
| Journal Citation | 3 (9), pp. 9337-9347 |
| Number of Pages | 11 |
| Year | 2020 |
| Publisher | American Chemical Society |
| Place of Publication | United States |
| ISSN | 2574-0962 |
| Digital Object Identifier (DOI) | https://doi.org/10.1021/acsaem.0c01688 |
| Web Address (URL) | https://pubs.acs.org/doi/10.1021/acsaem.0c01688 |
| Abstract | Tin-based materials have been considered as promising anode materials due to their advantages including high specific capacity, abundant resources, and low toxicity. Unfortunately, it has remained an intractable challenge for reasonable design with improved power density and long-term cycle performance for Li ion batteries because of the huge irreversible volume change during the alloying/dealloying process. Herein, an integrated electrode is designed by in situ growing SnSSe on the graphene sheet, followed by self-assembly and multiscale coated with conductive carbonized polyacrylonitrile. Pleasantly, dynamic evolution of integrated electrode thickness during cycles is in situ monitored by dilatometer, which exhibits effectively suppression of the thickness change to a low level with great reversibility (38.2% expansion ratio) compared with the pristine SnSSe electrode (161.8% expansion ratio) in the first cycle. Moreover, the electrochemical impedance of the integrated electrode shows a great stability after 500 cycles. As a result, the integrated electrode of SnSSe/GR@C shows a great rate performance (518.4 mA h g–1 at 5.0 A g–1) and stable cycle life (capacities retention of 107.1% at 5.0 A g–1 after 850 cycles). This work offers an innovative strategy for the development of high-performance tin-based anodes. |
| Keywords | lithium ion battery, tin-based anode, volume expansion, integrated electrode, high power |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 401807. Nanomaterials |
| 401602. Composite and hybrid materials | |
| Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
| Byline Affiliations | Zhejiang A & F University, China |
| Shanghai University, China | |
| Chariot Motors, China | |
| Centre for Future Materials | |
| Institution of Origin | University of Southern Queensland |
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