Interconnected CoS2/NC-CNTs network as high-performance anode materials for lithium-ion batteries
| العنوان: | Interconnected CoS2/NC-CNTs network as high-performance anode materials for lithium-ion batteries |
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| المؤلفون: | Lingjun Kong, Wei Xu, Hui Huang, Ming Liu, Baiyan Li, Xian-He Bu, Yingying Liu |
| المصدر: | Science China Materials. 64:820-829 |
| بيانات النشر: | Springer Science and Business Media LLC, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Battery (electricity), Materials science, Nanostructure, chemistry.chemical_element, Nanoparticle, Nanotechnology, 02 engineering and technology, Carbon nanotube, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, law.invention, Anode, chemistry, law, Electrode, General Materials Science, Lithium, 0210 nano-technology, Carbon |
| الوصف: | Cobalt disulfide (CoS2) has been considered a promising anode material for lithium-ion batteries (LIBs) due to its high theoretical capacity of 870 mA h g−1. However, its practical applications have been hampered by undesirable cycle life and rate performance due to the volume change and deterioration of electronic conductivity during the discharge-charge process. In this study, an interconnected CoS2/N-doped carbon/carbon nanotube (CoS2/NC-CNTs-700) network was successfully prepared to boost its lithium storage performance, in which small-size CoS2 nanoparticles were confined by N-doped carbon and uniformly decorated on the surface of CNTs. N-doped carbon can effectively accommodate the large volume expansion of CoS2 nanoparticles. Additionally, the 3D conductive nanostructure design offers adequate electrical/mass transport spacing. Benefiting from this, the CoS2/NC-CNTs-700 electrode demonstrates a long cycle life (a residual capacity of 719 mA h g−1 after 100 cycles at 0.2 A g−1) and outstanding rate performance (335 mA h g−1 at 5.0 A g−1). This study broadens the design and application of CoS2 and fosters the advances in battery anode research. |
| تدمد: | 2199-4501 2095-8226 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::e6fec4815d111f80aa933611413e5428 https://doi.org/10.1007/s40843-020-1477-0 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........e6fec4815d111f80aa933611413e5428 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 21994501 20958226 |
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