| Autor: |
Xingqun Zhu, Jing Li, Rai Nauman Ali, Meng Huang, Ping Liu, Bin Xiang |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Materials & Design, Vol 160, Iss , Pp 636-641 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
0264-1275 |
| DOI: |
10.1016/j.matdes.2018.10.011 |
| Popis: |
Composites are usually better than a single material because they combine advantages of their component materials and, as a result, achieve better performance. Using a high temperature sulfuration process, a Co1−xS/ZnS@C composite was successfully synthesized by using a 3D disordered polystyrene spheres (PS) template coated on metal-organic framework (ZIF) precursor. The Co1−xS/ZnS in the composite was firmly encapsulated by C that came from the 3D disordered PS template. The carbon can efficiently reduce the volume expansion triggered by metal sulfide particles during the charge/discharge process. Furthermore, due to a synergistic effect between the composite's components, the Co1−xS/ZnS@C composite displays better cycling performance and rate capacity compared to Co1−xS@C and ZnS@C. The Co1−xS/ZnS@C composite electrode showed a higher stable capacity of ~586 mAh g−1 after ~100 cycles with a current density is 0.3 A/g and it also exhibited a more excellent rate capability compare with Co1−xS@C and ZnS@C. Keywords: Composite, Lithium ion battery, ZnS |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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Full Text from ScienceDirect