Silicon and Carbon Nanocomposite Spheres with Enhanced Electrochemical Performance for Full Cell Lithium Ion Batteries
| Autor: | Zachary Favors, Chengyin Fu, Cengiz S. Ozkan, Changling Li, Mihrimah Ozkan, Krassimir N. Bozhilov, Juchen Guo, Wei Wang, Rachel Ye, Chueh Liu |
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| Rok vydání: | 2017 |
| Předmět: |
Battery (electricity)
Multidisciplinary Materials science Nanocomposite Silicon chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Article Cathode 0104 chemical sciences law.invention Anode Chemical engineering chemistry law Electrode Lithium 0210 nano-technology |
| Zdroj: | Scientific Reports |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/srep44838 |
| Popis: | Herein, facile synthesis of monodisperse silicon and carbon nanocomposite spheres (MSNSs) is achieved via a simple and scalable surface-protected magnesiothermic reduction with subsequent chemical vapor deposition (CVD) process. Li-ion batteries (LIBs) were fabricated to test the utility of MSNSs as an anode material. LIB anodes based on MSNSs demonstrate a high reversible capacity of 3207 mAh g−1, superior rate performance, and excellent cycling stability. Furthermore, the performance of full cell LIBs was evaluated by using MSNS anode and a LiCoO2 cathode with practical electrode loadings. The MSNS/LiCoO2 full cell demonstrates high gravimetric energy density in the order of 850 Wh L−1 with excellent cycling stability. This work shows a proof of concept of the use of monodisperse Si and C nanocomposite spheres toward practical lithium-ion battery applications. |
| Databáze: | OpenAIRE |
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