期刊
IONICS
卷 26, 期 12, 页码 5879-5887出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11581-020-03764-6
关键词
Electrospinning; SnO2@C composite; Polydopamine; Anode
资金
- Key Research Projects of Henan Provincial Department of Education [20A480005]
- National Natural Science Foundation of China [11874317, 11804289, 11604282]
- Program Projects of Science and Technology Innovative Research Team of Henan Province [18IRTSTHN017]
- Open Fund Project of Key Laboratory of Inorganic Non-Metallic Crystalline and Energy Conversion Materials of China Three Gorges University [2019KIE03]
- Nanhu Scholars Program for Young Scholars of XYNU
SnO(2)microbelt coating carbon composite was fabricated via electrospinning precursor, thermal treatment, and polymer adhesion process. Primarily, the solvent of electrospinning jet quickly evaporates in a relatively high-temperature environment; intermediate microtubules simultaneously form when the solute containing tin salt and binder converge on the skin of the jet; then, the microtubules collapse into flat microbelt product under the action of atmospheric pressure. Subsequently, SnO(2)microbelts can be obtained by annealing the electrospinning products. Finally, the SnO2@C microbelts are synthesized by dopamine polymerization and carbonization process. The SnO2@C microbelts present a regular strip with width similar to 1.2 mu m and thickness similar to 120 nm. Because of the synergy effect of carbon coating and SnO(2)microbelt design project, the composite shows superior lithium storage of 504 mAh g(-1)after 100 cycles at 0.2 A g(-1). The SnO2@C microbelts are expected to be competitive alternative anode material of next-generation LIBs.
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