Giant Energy Density and Improved Discharge Efficiency of Solution-Processed Polymer Nanocomposites for Dielectric Energy Storage

2016 ◽  
Vol 28 (10) ◽  
pp. 2055-2061 ◽  
Author(s):  
Xin Zhang ◽  
Yang Shen ◽  
Ben Xu ◽  
Qinghua Zhang ◽  
Lin Gu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Polymer Nanocomposites ◽  
Solution Processed ◽  
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.

Superior discharge energy density and efficiency in polymer nanocomposites induced by linear dielectric core–shell nanofibers

2019 ◽  
Vol 7 (2) ◽  
pp. 405-413 ◽  
Author(s):  
Zhongbin Pan ◽  
Lingmin Yao ◽  
Jinjun Liu ◽  
Xiaoyan Liu ◽  
Feipeng Pi ◽  
...  
Keyword(s):  
Energy Density ◽  
Composite Film ◽  
Polymer Nanocomposites ◽  
Core Shell ◽  
Discharge Energy ◽  
High Discharge ◽  
Discharge Efficiency ◽  
Large Discharge ◽  
Discharge Energy Density

Novel SrTiO3@Al2O3/PVDF composite film capacitors have remarkably large discharge energy density (15.3 J cm−3) along with high discharge efficiency (68.52%) and ultrafast discharge speed (127 ns).

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.

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).

Non-intuitive concomitant enhancement of dielectric permittivity, breakdown strength and energy density in percolative polymer nanocomposites by trace Ag nanodots

2019 ◽  
Vol 7 (25) ◽  
pp. 15198-15206 ◽  
Author(s):  
Xin Huang ◽  
Xin Zhang ◽  
Guang-Kun Ren ◽  
Jianyong Jiang ◽  
Zhenkang Dan ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Dielectric Permittivity ◽  
Polymer Nanocomposites ◽  
Breakdown Strength ◽  
Electrostatic Energy

In situ synthesized Ag nanodots enhances electrostatic energy storage by tuning dipoles.

scholarly journals Interface design for high energy density polymer nanocomposites

2019 ◽  
Vol 48 (16) ◽  
pp. 4424-4465 ◽  
Author(s):  
Hang Luo ◽  
Xuefan Zhou ◽  
Christopher Ellingford ◽  
Yan Zhang ◽  
Sheng Chen ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Polymer Nanocomposites ◽  
Interface Design ◽  
High Energy ◽  
High Energy Density ◽  
Energy Storage Applications ◽  
And Control

A detailed overview on interface design and control in polymer based composite dielectrics for energy storage applications.

Solution-processed ferroelectric terpolymer nanocomposites with high breakdown strength and energy density utilizing boron nitride nanosheets

2015 ◽  
Vol 8 (3) ◽  
pp. 922-931 ◽  
Author(s):  
Qi Li ◽  
Guangzu Zhang ◽  
Feihua Liu ◽  
Kuo Han ◽  
Matthew R. Gadinski ◽  
...  
Keyword(s):  
Energy Density ◽  
Boron Nitride ◽  
Polymer Nanocomposites ◽  
Breakdown Strength ◽  
Solution Processed ◽  
Boron Nitride Nanosheets ◽  
Ferroelectric Polymer ◽  
Charge Discharge

Ferroelectric polymer nanocomposites with boron nitride nanosheets exhibit greatly improved energy densities and higher charge–discharge efficiencies.

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