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Capacitor With A Dielectric01:18

Capacitor With A Dielectric

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Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
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0D-1D-2D多维异构膜用于高性能灵活的微型超级电容器.

Junke Li1,2, Xuan Tian1, Kunyu He1

  • 1State key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, 430074 Wuhan, China.

ACS applied materials & interfaces
|November 27, 2024
PubMed
概括

研究人员为高性能平面微超电容器 (MSC) 开发了新的多维异构膜 (MHF). 这些先进的电极材料可以为灵活的电子产品提供增强的能量存储.

关键词:
3C2纳米薄膜可以使用.灵活的微型超级电容器高能量密度,高能量密度.面具辅助策略 面具辅助策略多维异构的多维结构.

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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
  • 纳米技术 纳米技术

背景情况:

  • 平面微超级电容器 (MSC) 对于灵活和可穿戴的电子产品至关重要.
  • 设计具有快速离子动力学和可访问的活性点的电极材料是高能MSC的关键.

研究的目的:

  • 为先进的MSCs开发新的多维异构膜 (MHFs).
  • 为了研究CDs/c-CNTs/Ti3C2 MHF在灵活的能量存储设备中的性能.

主要方法:

  • 使用面具辅助策略制造多维异构膜 (MHFs).
  • 加入0D碳点 (CDs),1D碳素碳纳米管 (c-CNTs) 和2DTi3C2MXene纳米板.
  • MHF电极和固态MSC的电化学表征.

主要成果:

  • CDs/c-CNTs/Ti3C2 MHF电极实现了1162.6mF cm-2.2的高面积电容.
  • 经过1万个循环后,表现出显著的循环稳定性,保持107.1%.
  • 制造的固态MSC表现出高能量密度 (11.1 mWh cm-2) 和长期稳定性 (102.1%的保留8000个循环后).

结论:

  • 开发的CDs/c-CNTs/Ti3C2 MHF为MSCs提供了卓越的电化学性能.
  • 这些MHF为下一代灵活和可穿戴电子产品提供了有前途的材料.
  • 模块化电源显示了为实际电子设备供电的潜力.