打破障碍:用于先进的离子电池的结合剂辅助NiS/NiS2异构结构阳极,具有高初始库伦比效率
Rashid Khan1, Zhengwei Wan1, Waqar Ahmad1
1Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China.
ACS applied materials & interfaces
|July 26, 2023
概括
开发高性能离子电池 (SIB) 是非常重要的. 一个具有特殊三功能结合剂的新型NiS/NiS2阳极实现了90.7%的初始库伦比效率 (ICE) 和19,000个周期的稳定循环.
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:
- 在实际应用中,离子电池 (SIB) 需要高初始效率 (ICE) 和长期循环稳定性.
- 设计先进的阳极材料和粘合剂是提高SIB性能和能量密度的关键策略.
研究的目的:
- 为SIBs开发高性能阳极材料和三功能网络绑定器.
- 为了研究设计的SIB系统的电化学性能,特别是ICE和循环稳定性.
主要方法:
- 一个NiS/NiS2异构被合成为阳极材料.
- 一个三功能网络绑定器,SA-g-PAM,被设计和使用.
- 通过静电循环和容量保留测试来评估电化学性能.
主要成果:
- 带有SA-g-PAM结合剂的NiS/NiS2阳极实现了前所未有的90.7%的ICE.
- 显著的循环稳定性被证明,在19,000个循环后在10 A g-1.1下保持482.3 mAh g-1.
- 粘合剂提供了出色的机械性能和粘合力,有助于优越的电化学性能.
结论:
- NiS/NiS2异构和SA-g-PAM结合器的组合为高性能SIB提供了一个有前途的战略.
- 这种方法显著提高了ICE和长期循环稳定性,这对于储能设备至关重要.
- 这项研究为开发用于电池行业的先进电极材料和粘合剂提供了新的方向.
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