Szczegóły publikacji
Opis bibliograficzny
Core-shell structured ${ZnS-C}$ nanoparticles with enhanced electrochemical properties for high-performance lithium-ion battery anodes / Xuefei Du, Hailei Zhao, Zijia Zhang, Yao Lu, Chunhui Gao, Zhaolin Li, Yongqiang Teng, Lina Zhao, Konrad ŚWIERCZEK // Electrochimica Acta : Journal of the International Society of Electrochemistry ; ISSN 0013-4686. — 2017 — vol. 225, s. 129–136. — Bibliogr. s. 136, Abstr. — Publikacja dostępna online od: 2016-12-21. — Z. Zhang - afiliacja: University of Science and Technology Beijing
Autorzy (9)
- Du Xuefei
- Zhao Hailei
- Zhang Zijia
- Lu Yao
- Gao Chunhui
- Li Zhaolin
- Teng Yongqiang
- Zhao Lina
- AGHŚwierczek Konrad
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 105525 |
|---|---|
| Data dodania do BaDAP | 2017-05-25 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.electacta.2016.12.118 |
| Rok publikacji | 2017 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Electrochimica Acta |
Abstract
Core-shell structured ZnS-C nanoparticles are successfully synthesized by a chitosan-assisted hydrothermal method followed by a chemical vapor deposition process using C2H2. The ZnS nanoparticles (c. a. 100-150 nm in size) are uniformly coated by a thin carbon shell with a thickness of about 10 nm, forming well-dispersed nano-powders. When applied as anode in lithium cells, the synthesized nano-ZnS-C composite exhibits a specific capacity of 565 mAh g(-1) at 0.1 A g(-1) and 363 mAh g(-1) at 5 A g(-1) current density. After 600 cycles at a current density of 0.5 A g(-1), the constructed electrode shows over 87% capacity retention, indicating excellent electrochemical performance. The outstanding properties of the obtained nano-ZnS-C can be attributed to the well-defined core-shell nanostructure, in which the nano-sized ZnS core provides short lithium ion diffusion pathways, while the carbon shell allows for a fast electron conduction, and at the same time accommodates the volume changes caused by the lithiation/delithiation of ZnS.
