相关实验视频

Updated: Jul 12, 2025

Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites
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Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites

Published on: September 19, 2020

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聚乙烯基共聚合物复合物的优越高温电容性能,通过界面工程充电陷实现

Xinyi Li1, Yunchuan Xie1, Jie Xiong1

  • 1Department of Applied Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China. zhichengzhang@mail.xjtu.edu.cn.

Materials horizons
|October 20, 2023
PubMed
概括

研究人员使用涂有氨基酸 (ABA) 的BN纳米粒子开发了先进的聚合物介电薄膜. 这些材料在高温下提供高能量密度和效率,这对于储能系统至关重要.

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相关概念视频

Capacitor With A Dielectric01:18

Capacitor With A Dielectric

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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Dielectric Polarization in a Capacitor01:31

Dielectric Polarization in a Capacitor

The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
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