NiS2 @MWCNTs as a promising anode material for lithium and sodium-ion batteries with superior cycling stability
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- NiS2 @MWCNTs as a promising anode material for lithium and sodium-ion batteries with superior cycling stability
- 发表刊物：
- Journal of Alloys and Compounds
- 摘要：
- The NiS2 @MWCNTs materials were synthesized using a straightforward hydrothermal one-step process, forming a 3D conductive network structure with stable and uniformly distributed nanosphere morphology. Electro chemical tests yielded a sodium storage capacity of 463.99 mAh g− 1 after 400 cycles with 0.2 A g− 1
, and a coulomb efficiency of 83.3% at the first cycle, followed by excellent long-cycle stability with a capacity retention rate of 96.7% after 600 cycles at a high current of 1 A g− 1. It’s interesting to note that Na+ storage mechanism is provided by a pseudocapacitor. The 3D conductive network was credited with enhanced electrochemical per formance and structural stability. The incorporation of multi-walled carbon nanotubes (MWCNTs) also improves the material conductivity and accelerated the ion transport efficiency, while modulation of the nano microsphere structure increases the reactive active sites and reduce the capacity loss. These findings highlight the great potential NiS2 @MWCNTs composites as a perfect anode material for sodium-ion batteries (SIBs), opening up new possibilities for sustainable energy storage solutions.
- 合写作者：
- W.X. Zhang, Z. Li, J.H. Zhang, C. He,* X.H. Ning
- 卷号：
- 971 (2024) 172669
- 页面范围：
- 971 (2024) 172669
- 是否译文：
- 否
- 发表时间：
- 2024-01-15