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Polymer Nanocomposites with Ultrahigh Energy Density and High Discharge Efficiency by Modulating their Nanostructures in Three Dimensions
Advanced Materials ( IF 29.4 ) Pub Date : 2018-03-13 , DOI: 10.1002/adma.201707269
Xin Zhang 1, 2 , Jianyong Jiang 1 , Zhonghui Shen 1 , Zhenkang Dan 1 , Ming Li 1 , Yuanhua Lin 1 , Ce‐Wen Nan 1 , Longqing Chen 3 , Yang Shen 1
Affiliation  

Manipulating microstructures of composites in three dimensions has been a long standing challenge. An approach is proposed and demonstrated to fabricate artificial nanocomposites by controlling the 3D distribution and orientation of oxide nanoparticles in a polymer matrix. In addition to possessing much enhanced mechanical properties, these nanocomposites can sustain extremely high voltages up to ≈10 kV, exhibiting high dielectric breakdown strength and low leakage current. These nanocomposites show great promise in resolving the paradox between dielectric constant and breakdown strength, leading to ultrahigh electrical energy density (over 2000% higher than that of the bench‐mark polymer dielectrics) and discharge efficiency. This approach opens up a new avenue for the design and modulation of nanocomposites. It is adaptable to the roll‐to‐roll fabrication process and could be employed as a general technique for the mass production of composites with intricate nanostructures, which is otherwise not possible using conventional polymer processing techniques.

中文翻译:

通过在三个维度上调节其纳米结构,具有超高能量密度和高放电效率的聚合物纳米复合材料

在三个维度上操纵复合材料的微观结构一直是一个长期的挑战。提出并证明了一种通过控制聚合物基质中氧化物纳米颗粒的3D分布和方向来制造人造纳米复合材料的方法。这些纳米复合材料除了具有大大增强的机械性能外,还可以承受高达≈10kV的极高电压,表现出高介电击穿强度和低泄漏电流。这些纳米复合材料有望解决介电常数和击穿强度之间的矛盾,带来超高的电能密度(比基准聚合物介电材料高2000%以上)和放电效率。这种方法为纳米复合材料的设计和调制开​​辟了一条新途径。
更新日期:2018-03-13
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