Fe-ZIF@C with Porous Nanostructure as Anode Material for Lithium-Ion Batteries
| Autor: | Jing Wang, Zhitong Li, Jiajin Nie, Shaowei Yao, Guifei Shi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Nanostructure chemistry.chemical_element 02 engineering and technology Electrolyte 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Anode chemistry.chemical_compound chemistry Chemical engineering 0103 physical sciences Imidazolate Materials Chemistry Lithium Electrical and Electronic Engineering 0210 nano-technology Porosity Current density Carbon |
| Zdroj: | Journal of Electronic Materials. 50:2831-2839 |
| ISSN: | 1543-186X 0361-5235 |
| DOI: | 10.1007/s11664-021-08773-3 |
| Popis: | Fe-zeolitic imidazolate framework (ZIF)@C (Fe-ZIF wrapped by carbon) anode material has been manufactured. It has porous nanostructure, which can effectively shorten the distance of lithium ion transmission, thus achieving excellent rate performance, and can also reduce the volume expansion in the charging and discharging process, thus reducing the attenuation of capacity. The external carbon coating avoids direct contact between Fe-ZIF and the electrolyte, inhibits decomposition of the electrolyte, and impedes formation of the solid electrolyte interphase (SEI) film, thus obtaining higher reversible capacity in the cycling process. At a current density of 100 mA/g, Fe-ZIF@C achieves a high discharge capacity of 719 mAh/g after 100 cycles. This research shows that Fe-ZIF@C has potential for use as an anode material for lithium-ion batteries. |
| Databáze: | OpenAIRE |
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