A Scalable, High‐Throughput, and Environmentally Benign Approach to Polymer Dielectrics Exhibiting Significantly Improved Capacitive Performance at High Temperatures,Advanced Materials

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A Scalable, High‐Throughput, and Environmentally Benign Approach to Polymer Dielectrics Exhibiting Significantly Improved Capacitive Performance at High Temperatures
Advanced Materials ( IF 27.4 ) Pub Date : 2018-10-03 , DOI: 10.1002/adma.201805672
Yao Zhou ₁ , Qi Li ₁ , Bin Dang ₁ , Yang Yang ₁ , Tao Shao ₂ , He Li ₃ , Jun Hu ₁ , Rong Zeng ₁ , Jinliang He ₁ , Qing Wang ₃

Affiliation

High‐temperature capability is critical for polymer dielectrics in the next‐generation capacitors demanded in harsh‐environment electronics and electrical‐power applications. It is well recognized that the energy‐storage capabilities of dielectrics are degraded drastically with increasing temperature due to the exponential increase of conduction loss. Here, a general and scalable method to enable significant improvement of the high‐temperature capacitive performance of the current polymer dielectrics is reported. The high‐temperature capacitive properties in terms of discharged energy density and the charge–discharge efficiency of the polymer films coated with SiO₂ via plasma‐enhanced chemical vapor deposition significantly outperform the neat polymers and rival or surpass the state‐of‐the‐art high‐temperature polymer nanocomposites that are prepared by tedious and low‐throughput methods. Moreover, the surface modification of the dielectric films is carried out in conjunction with fast‐throughput roll‐to‐roll processing under ambient conditions. The entire fabrication process neither involves any toxic chemicals nor generates any hazardous by‐products. The integration of excellent performance, versatility, high productivity, low cost, and environmental friendliness in the present method offers an unprecedented opportunity for the development of scalable high‐temperature polymer dielectrics.

中文翻译：

一种可扩展，高通量和环境友好的方法，可在高温下显着改善电容性能的高分子电介质

高温性能对于恶劣环境电子产品和电力应用中所需的下一代电容器中的聚合物电介质至关重要。众所周知，电介质的储能能力会随着温度的升高而急剧下降，这是因为传导损耗呈指数级增长。在此，报告了一种通用且可扩展的方法，可以显着改善当前聚合物电介质的高温电容性能。就放电能量密度和涂有SiO ₂的聚合物薄膜的充放电效率而言，高温电容特性通过等离子体增强的化学气相沉积，其性能明显优于纯净的聚合物，并且可以与之媲美或超过通过乏味和低通量方法制备的最新的高温聚合物纳米复合材料。此外，介电膜的表面改性是在环境条件下与快速通量卷对卷处理相结合进行的。整个制造过程既不涉及任何有毒化学物质，也不产生任何有害的副产品。本方法中优异的性能，多功能性，高生产率，低成本和环境友好性的集成为可扩展的高温聚合物电介质的开发提供了前所未有的机会。

更新日期：2018-10-03

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