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 ◽  
...  
2020 ◽  
Vol 8 (14) ◽  
pp. 6576-6585 ◽  
Author(s):  
Yushu Li ◽  
Yao Zhou ◽  
Yujie Zhu ◽  
Sang Cheng ◽  
Chao Yuan ◽  
...  

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


RSC Advances ◽  
2019 ◽  
Vol 9 (62) ◽  
pp. 35990-35997
Author(s):  
Tao Zhang ◽  
Mengfan Guo ◽  
Jianyong Jiang ◽  
Xueyou Zhang ◽  
Yuanhua Lin ◽  
...  

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


2019 ◽  
Vol 18 ◽  
pp. 213-221 ◽  
Author(s):  
Jianyong Jiang ◽  
Zhonghui Shen ◽  
Jianfeng Qian ◽  
Zhenkang Dan ◽  
Mengfan Guo ◽  
...  

2021 ◽  
Author(s):  
Li Xiali ◽  
Liuwei Shi ◽  
Lei Chen ◽  
Wenyao Yang ◽  
Xiaoting Zha ◽  
...  

Abstract Ceramic/polymer nanocomposites have shown great potential in high energy storage density capacitors for pulsed power applications. However, due to the difference in surface energy between inorganic fillers and polymers, the discharge energy density and efficiency of nanocomposites are limited. In this article, the BaTiO3 (BT) nanowires (nws) modified with dopamine (Dopa) was introduced into aromatic polythiourea (ArPTU) polymer matrix as composite for high performance dielectrics. This is a new path about the introduction of a high dielectric constant ceramic into high dipole moment linear polymers (HDMLP), which produces the polymer composite with high energy storage density and high discharge efficiency. The composite ArPTU/BT nws shows an energy density of 7.5 Jžcm-3 and high efficiency more than 90 % is obtained under an electric field of 250 MVžm-1. It also has been found that the modification of BT nws with the dopamine reduces the dielectric loss of composite effectively due to the good synergistic effective between ArPTU and BT nws, and high stability of composite for energy storage is also achieved. This work provides an effective solution for achieving high energy storage density and high discharge efficiency in polymer dielectrics for practical capacitor applications.


Molecules ◽  
2021 ◽  
Vol 26 (10) ◽  
pp. 2942
Author(s):  
Bhausaheb V. Tawade ◽  
Ikeoluwa E. Apata ◽  
Nihar Pradhan ◽  
Alamgir Karim ◽  
Dharmaraj Raghavan

The synthesis of polymer-grafted nanoparticles (PGNPs) or hairy nanoparticles (HNPs) by tethering of polymer chains to the surface of nanoparticles is an important technique to obtain nanostructured hybrid materials that have been widely used in the formulation of advanced polymer nanocomposites. Ceramic-based polymer nanocomposites integrate key attributes of polymer and ceramic nanomaterial to improve the dielectric properties such as breakdown strength, energy density and dielectric loss. This review describes the ”grafting from” and ”grafting to” approaches commonly adopted to graft polymer chains on NPs pertaining to nano-dielectrics. The article also covers various surface initiated controlled radical polymerization techniques, along with templated approaches for grafting of polymer chains onto SiO2, TiO2, BaTiO3, and Al2O3 nanomaterials. As a look towards applications, an outlook on high-performance polymer nanocomposite capacitors for the design of high energy density pulsed power thin-film capacitors is also presented.


2017 ◽  
Vol 9 (4) ◽  
pp. 4024-4033 ◽  
Author(s):  
Zhongbin Pan ◽  
Lingmin Yao ◽  
Jiwei Zhai ◽  
Dezhou Fu ◽  
Bo Shen ◽  
...  

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