Reversible Silicon Anodes with Long Cycles by Multifunctional Volumetric Buffer Layers
| العنوان: | Reversible Silicon Anodes with Long Cycles by Multifunctional Volumetric Buffer Layers |
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| المؤلفون: | Mengxue He, Ruying Li, Tiansheng Mu, Chunyu Du, Pengjian Zuo, Jiajun Wang, Xiaoting Lin, Changhong Wang, Yulin Ma, Nathaniel Graham Holmes, Shuaifeng Lou, Geping Yin, Baicheng Shen, Xueliang Sun |
| المصدر: | ACS Applied Materials & Interfaces. 13:4093-4101 |
| بيانات النشر: | American Chemical Society (ACS), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Battery (electricity), Materials science, Silicon, Doping, Nanoparticle, chemistry.chemical_element, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Electrochemistry, 01 natural sciences, 0104 chemical sciences, Anode, chemistry, General Materials Science, Lithium, 0210 nano-technology, Carbon |
| الوصف: | Establishing a stable, stress-relieving configuration is imperative to achieve a reversible silicon anode for high energy density lithium-ion batteries. Herein, we propose a silicon composite anode (denoted as T-Si@C), which integrates free space and mixed carbon shells doped with rigid TiO2/Ti5Si3 nanoparticles. In this configuration, the free space accommodates the silicon volume fluctuation during battery operation. The carbon shells with embedded TiO2/Ti5Si3 nanoparticles maintain the structural stability of the anode while accelerating the lithium-ion diffusion kinetics and mitigating interfacial side reactions. Based on these advantages, T-Si@C anodes demonstrate an outstanding lithium storage performance with impressive long-term cycling reversibility and good rate capability. Additionally, T-Si@C//LiFePO4 full cells show superior electrochemical reversibility. This work highlights the importance of rational structural manipulation of silicon anodes and affords fresh insights into achieving advanced silicon anodes with long life. |
| تدمد: | 1944-8252 1944-8244 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e359d4d39c1640a962a659eda1a9475 https://doi.org/10.1021/acsami.0c21455 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....4e359d4d39c1640a962a659eda1a9475 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 19448252 19448244 |
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