Designing a ternary NiS <sub>2</sub> /CoS <sub>2</sub> @SnS <sub>2</sub> nanocube as a secondary battery anode displaying excellent capacity and stability
Simultaneously achieving rapid electron/ion transfer and high capacity in Na-ion batteries remains a great challenge. Here, we describe our development of a ternary composite consisting of SnS<sub>2</sub> grown on NiS<sub>2</sub>/CoS<sub>2</sub> nanocubes, forming a NiS<sub>2</sub>/CoS<sub>2</sub>@SnS<sub>2</sub> structure that displays excellent performances as a Na-ion battery anode. The synergy of ternary sulfides improves electrical and ionic conductivities, while the hierarchical architecture enhances structural stability. <i>In situ</i> characterizations demonstrate good reversibility upon cycling. The NiS<sub>2</sub>/CoS<sub>2</sub>@SnS<sub>2</sub> anode displays a high capacity of 475.6 mAh g<sup>-1</sup> after 1000 cycles at 2 A g<sup>-1</sup>, and of 223.4 mAh g<sup>-1</sup> after cycling 2500 times at a high rate of 5 A g<sup>-1</sup>. These findings are of great importance for the development of emerging energy-storage composites and battery systems.
Authors
- Xulai Yang (ORCID: https://orcid.org/0000-0001-7209-7479)
- Fan Bu (ORCID: https://orcid.org/0000-0002-6820-6502)
- Jinyun Liu (ORCID: https://orcid.org/0000-0001-6619-3886)
- Jinjin Li (ORCID: https://orcid.org/0000-0003-4661-4051)
- Ke Wang (ORCID: https://orcid.org/0000-0002-9970-220X)
- Fan Zhou
- Tianli Han
- MA Feng-ming
- Huizi Songtian
Institutions
- Hefei University of Technology (CN)
- Shanghai Jiao Tong University (CN)
- Hefei University (CN)
- Anhui Normal University (CN)
- Hubei University (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-12-08
- DOI
- https://doi.org/10.1039/d5cc06187c
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00