高活性和可逆的NiPSe3阳极用于离子电池:可实现超快速的储存,具有特殊的循环稳定性
Chuanqi Li1, Tiantian Liu2, Zipeng Wang2
1College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, China.
Journal of colloid and interface science
|July 27, 2025
概括
硫化 (NiPSe3) 显示出作为离子电池电极材料的前景,提供出色的循环稳定性和高容量. 本研究探讨了它在先进的储能应用中的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 硫化 (NiPSe) 由于其导电性和结构,具有用于离子电池的潜力.
- 它的离子储存能力以前没有被研究过.
研究的目的:
- 为了研究二维NiPSe3的离子储存能力.
- 阐明其电化学性能背后的机制.
主要方法:
- 通过化学蒸汽运输合成2D NiPSe3.
- 在现场/外现场表征技术.
- 理论上的计算. 理论上的计算.
主要成果:
- 证明了特殊的速度能力和超长周期稳定性.
- 可逆容量为277.3 mAh g-1 (5000个周期在20 A g-1) 和249.3 mAh g-1 (10,000个周期在15 A g-1).
- 在1Ag-1时,高初始库伦比效率为93.64%.
结论:
- NiPSe3表现出卓越的性能,归因于金属导电性,Se p频段能量和Na+吸附.
- 可逆的结构进化是由弱的NiSe结合和低的旋转极化促进的.
- 为设计用于储能的金属硫酸基材料提供了基本的理解.
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