Polymer nanocomposites with high energy density and improved charge–discharge efficiency utilizing hierarchically-structured nanofillers

2020 ◽  
Vol 8 (14) ◽  
pp. 6576-6585 ◽  
Author(s):  
Yushu Li ◽  
Yao Zhou ◽  
Yujie Zhu ◽  
Sang Cheng ◽  
Chao Yuan ◽  
...  
Keyword(s):  
Energy Density ◽  
Polymer Nanocomposites ◽  
High Energy ◽  
High Energy Density ◽  
Hierarchical Nanostructure ◽  
Discharge Efficiency ◽  
Charge Discharge ◽  
Dielectric Polymer

A hierarchical nanostructure as a new design of nanofillers is demonstrated for high-energy-density dielectric polymer nanocomposites.

Tuning Phase Composition of Polymer Nanocomposites toward High Energy Density and High Discharge Efficiency by Nonequilibrium Processing

2017 ◽  
Vol 9 (35) ◽  
pp. 29717-29731 ◽  
Author(s):  
Jianyong Jiang ◽  
Xin Zhang ◽  
Zhenkang Dan ◽  
Jing Ma ◽  
Yuanhua Lin ◽  
...  
Keyword(s):  
Phase Composition ◽  
Energy Density ◽  
Polymer Nanocomposites ◽  
High Energy ◽  
High Energy Density ◽  
High Discharge ◽  
Discharge Efficiency

scholarly journals Sandwich-structured polymer nanocomposites with high energy density and great charge–discharge efficiency at elevated temperatures

2016 ◽  
Vol 113 (36) ◽  
pp. 9995-10000 ◽  
Author(s):  
Qi Li ◽  
Feihua Liu ◽  
Tiannan Yang ◽  
Matthew R. Gadinski ◽  
Guangzu Zhang ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
High Temperature ◽  
Energy Density ◽  
Polymer Nanocomposites ◽  
Elevated Temperatures ◽  
High Energy ◽  
Operating Conditions ◽  
High Dielectric ◽  
Discharge Efficiency ◽  
Charge Discharge

The demand for a new generation of high-temperature dielectric materials toward capacitive energy storage has been driven by the rise of high-power applications such as electric vehicles, aircraft, and pulsed power systems where the power electronics are exposed to elevated temperatures. Polymer dielectrics are characterized by being lightweight, and their scalability, mechanical flexibility, high dielectric strength, and great reliability, but they are limited to relatively low operating temperatures. The existing polymer nanocomposite-based dielectrics with a limited energy density at high temperatures also present a major barrier to achieving significant reductions in size and weight of energy devices. Here we report the sandwich structures as an efficient route to high-temperature dielectric polymer nanocomposites that simultaneously possess high dielectric constant and low dielectric loss. In contrast to the conventional single-layer configuration, the rationally designed sandwich-structured polymer nanocomposites are capable of integrating the complementary properties of spatially organized multicomponents in a synergistic fashion to raise dielectric constant, and subsequently greatly improve discharged energy densities while retaining low loss and high charge–discharge efficiency at elevated temperatures. At 150 °C and 200 MV m−1, an operating condition toward electric vehicle applications, the sandwich-structured polymer nanocomposites outperform the state-of-the-art polymer-based dielectrics in terms of energy density, power density, charge–discharge efficiency, and cyclability. The excellent dielectric and capacitive properties of the polymer nanocomposites may pave a way for widespread applications in modern electronics and power modules where harsh operating conditions are present.

scholarly journals Modulating interfacial charge distribution and compatibility boosts high energy density and discharge efficiency of polymer nanocomposites

RSC Advances ◽  
2019 ◽  
Vol 9 (62) ◽  
pp. 35990-35997
Author(s):  
Tao Zhang ◽  
Mengfan Guo ◽  
Jianyong Jiang ◽  
Xueyou Zhang ◽  
Yuanhua Lin ◽  
...  
Keyword(s):  
Energy Density ◽  
Charge Distribution ◽  
Polymer Nanocomposites ◽  
High Energy ◽  
High Energy Density ◽  
Discharge Efficiency ◽  
Polymer Shells ◽  
Interfacial Charge

Fluoro-polymer shells concomitantly enhance the energy density and discharge efficiency by active interactions with BTO cores and P(VDF-HFP).

Ultrahigh Charge-discharge Efficiency and High Energy Density of High-temperature Polymer Sandwiched

2021 ◽  
Author(s):  
Hanxi Chen ◽  
Zhongbin Pan ◽  
Yu Cheng ◽  
Xiangping Ding ◽  
Jinjun Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Energy Density ◽  
Elevated Temperatures ◽  
Dielectric Materials ◽  
High Energy ◽  
High Energy Density ◽  
Capacitive Energy Storage ◽  
New Generation ◽  
Discharge Efficiency ◽  
Charge Discharge

A new generation of high-temperature dielectric materials toward capacitive energy storage is highly demanded as power electronics are always exposed to elevated temperatures in high-power applications. Polymer dielectric materials, an...

scholarly journals Research on epoxy-based nanocomposites with high energy density and charge-discharge efficiency filled with Ti02 nanofibers

2020 ◽  
Vol 431 ◽  
pp. 012045
Author(s):  
Bo Kong ◽  
YongPeng Meng ◽  
SiYu Chen ◽  
YuShuan Gao ◽  
YongHong Cheng ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Discharge Efficiency ◽  
Charge Discharge

Ultrahigh discharge efficiency in multilayered polymer nanocomposites of high energy density

2019 ◽  
Vol 18 ◽  
pp. 213-221 ◽  
Author(s):  
Jianyong Jiang ◽  
Zhonghui Shen ◽  
Jianfeng Qian ◽  
Zhenkang Dan ◽  
Mengfan Guo ◽  
...  
Keyword(s):  
Energy Density ◽  
Polymer Nanocomposites ◽  
High Energy ◽  
High Energy Density ◽  
Discharge Efficiency

High-Energy-Density Dielectric Polymer Nanocomposites with Trilayered Architecture

2017 ◽  
Vol 27 (20) ◽  
pp. 1606292 ◽  
Author(s):  
Feihua Liu ◽  
Qi Li ◽  
Jin Cui ◽  
Zeyu Li ◽  
Guang Yang ◽  
...  
Keyword(s):  
Energy Density ◽  
Polymer Nanocomposites ◽  
High Energy ◽  
High Energy Density ◽  
Dielectric Polymer
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