Tin nanoparticle/3D framework carbon composite derived from sodium citrate as the stable anode of lithium-ion batteries
| Autor: | Jie Wu, Yajuan Li, Pengbo Wu, You-Nian Liu, Gaoyao Jin, Yaopeng Chen |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
General Chemical Engineering Composite number General Engineering General Physics and Astronomy chemistry.chemical_element Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Anode chemistry.chemical_compound chemistry Chemical engineering General Materials Science Lithium 0210 nano-technology Tin Carbon Trisodium citrate |
| Zdroj: | Ionics. 27:1003-1011 |
| ISSN: | 1862-0760 0947-7047 |
| DOI: | 10.1007/s11581-020-03886-x |
| Popis: | Sn-based anode materials have gained more attention for application in lithium-ion batteries (LIBs), due to tin having the characteristics of high specific capacity, low cost, and environmentally friendly. However, low capacity retention due to the large volume changes upon lithiation/delithiation limits their further development. In this paper, tin nanoparticle/3D framework carbon composite (denoted as Sn@SC) is obtained by calcining the composite of trisodium citrate and stannous sulfide. The Sn@SC composite delivers a stable cycling capacity of 410.9 mAh/g after 150 cycles and 300.1 mAh/g after 950 cycles at 1 A/g. The excellent electrochemical performance can be assigned to the fact that the hollow porous carbon can provide enough space for the volume change of tin nanoparticles in the step-by-step alloying process and shorten the electron transport path, thus increasing the structural stability and rate capability. |
| Databáze: | OpenAIRE |
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