Interface design for high energy density polymer nanocomposites

Luo, Hang; Zhou, Xuefan; Ellingford, Christopher; Zhang, Yan; Chen, Sheng; Zhou, Kechao; Bowen, Chris; Wan, Chaoying

doi:10.1039/c9cs00043g

Cited by 563 publications

(397 citation statements)

References 273 publications

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“…This is in sharp contrast to the typical dielectric polymer composites with high‐ K inclusions whose E b is always largely reduced when compared to that of pristine polymers. [ 8,39,40 ] It is found that the systematic enhancement in the E b of the PI nanocomposites coincides with the increasing trend of Δ E of the nanofillers as summarized in Figure S8 in the Supporting Information. Al 2 O 3 has the largest Δ E among the fillers and results in the highest E b of the composites, while TiO 2 with the lowest Δ E leads to the smallest improvement in E b of the resulting composites.…”

Section: Figurementioning

confidence: 72%

Tuning Nanofillers in In Situ Prepared Polyimide Nanocomposites for High‐Temperature Capacitive Energy Storage

Zhou

et al. 2020

Advanced Energy Materials

271

215

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of 140 °C or above. [4,5] While dielectric ceramics are traditional materials for high-temperature capacitors, [6] they are severely limited by scalability, weight, fracture toughness, and breakdown strength in comparison to their polymer counterparts. [7][8][9][10][11][12][13][14][15][16][17] Biaxially oriented polypropylene film (BOPP), the state-of-the-art commercially available polymer dielectric, however, shows largely degraded high-field dielectric properties when operating at temperatures above 100 °C. [18] To address these imperative needs, a variety of well-established engineering polymers, including polycarbonate, polyimide (PI), polyetherimides, and poly(ether ether ketone), have been exploited as hightemperature dielectric materials. [19][20][21][22][23][24][25] As these aromatic polymers have high glass transition temperatures (T g ) and excellent thermal stability, it is anticipated that the engineering polymers would retain electromechanical properties and thus dielectric stability at high temperatures. However, when subjected to high applied fields, the engineering polymers exhibit limited working temperatures that are much lower than their T g s. [19,20] More recently, inorganic fillers represented by boron nitride nanosheets (BNNSs) have been incorporated into crosslinked divinyltetramethyldisiloxane-bis(benzocyclobutene) (c-BCB) to yield the dielectric polymer composites capable of operating efficiently at high temperatures, e.g. 150 °C. [26][27][28][29] Herein, we describe the hightemperature dielectric properties and capacitive performance of the PI-based polymer nanocomposites prepared via in situ polycondensation. Compared with c-BCB, PI possesses the inherent advantages including much better processability, considerably lower cost, and greater mechanical strength and flexibility, which potentially offers a scalable route toward robust hightemperature dielectric materials. [30,31] The investigation of the polymer composites containing the inorganic nanofillers with systematically varied dielectric constants (K) and bandgap (ΔE), including aluminium oxide (Al 2 O 3 ) with a K of 9.5 and a ΔE of 8.6 eV, hafnium dioxide (HfO 2 ) with a K of 25 and a ΔE of 5.8 eV, titanium dioxide (TiO 2 ) with a K of 110 and a ΔE of 3.5 eV, and BNNS with a K of 4 and a ΔE of 5.97 eV, [26,[32][33][34] would provide experimental guidelines for the design of highperformance high-temperature dielectric polymer composites. Modern electronics and electrical systems demand efficient operation of dielectric polymer-based capacitors at high electric fields and elevated temperatures. Here, polyimide (PI) dielectric composites prepared from in situ polymerization in the presence of inorganic nanofillers are reported. The systematic manipulation of the dielectric constant and bandgap of the inorganic fillers, including Al 2 O 3 , HfO 2 , TiO 2 , and boron nitride nanosheets, reveals the dominant role of the bandgap of the fillers in determining and improving the high-temperature capacitive performance of the polymer compo...

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Section: Figurementioning

confidence: 72%

Tuning Nanofillers in In Situ Prepared Polyimide Nanocomposites for High‐Temperature Capacitive Energy Storage

Zhou

et al. 2020

Advanced Energy Materials

271

215

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“…Inorganic dielectric fillers have been modified with organic dielectric materials by chemical treatment, grafting shell layers, using multiple hierarchical shells on the surface of the fillers, or multi‐layered structures as reviewed in refs. [ 166–169 ] Luo et al [ 168 ] summarized the range of organic modifiers for improving filler dispersion and compatibility with a polymer matrix. Based on this information, the authors tabulated the combination of inorganic core and organic shell in a simpler format, as shown in Table 3.…”

Section: Endeavors To Enhance Dielectric Strengthmentioning

confidence: 99%

The search for enhanced dielectric strength of polymer‐based dielectrics: A focused review on polymer nanocomposites

Tan

2020

J of Applied Polymer Sci

141

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Author Daniel Tan summarized the recent advances in dielectric composites with the focused search for the method of enhancing dielectric strength. A SEM image of the polymer composite is presented showing the nanoparticle dispersion and bonding with polymer matrix via an in-situ polymerization synthesis. The defects, electrical charge transport, surface imperfection causing dielectric breakdown may be suppressed by the adequate design of nanoparticle incorporation, core-shell configuration, and filler-polymer interface, which eventually leads to high performance dielectric nanocomposites for capacitors and electrical insulation.ARTICLES 48192 Microfibrillated-cellulose-reinforced polyester nanocomposites prepared by filtration and hot pressing: Bending properties and three-dimensional formability

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“…To meet the demands of everyday life, synthetic polymers have been playing an important role from the past century. Natural polymers include proteins, enzymes, DNA, in addition, few cases of synthesized polymers are polyethylene, polyester (PE), polyvinyl chloride (PVC), etc., within the arrangement of plastic fibers and the products with exceptional properties and substituting metal counterparts in every industry with cost-effectiveness [81].…”

Section: Polymer Materialsmentioning

confidence: 99%

Carbon-Based Polymer Nanocomposite for High-Performance Energy Storage Applications

et al. 2020

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In recent years, numerous discoveries and investigations have been remarked for the development of carbon-based polymer nanocomposites. Carbon-based materials and their composites hold encouraging employment in a broad array of fields, for example, energy storage devices, fuel cells, membranes sensors, actuators, and electromagnetic shielding. Carbon and its derivatives exhibit some remarkable features such as high conductivity, high surface area, excellent chemical endurance, and good mechanical durability. On the other hand, characteristics such as docility, lower price, and high environmental resistance are some of the unique properties of conducting polymers (CPs). To enhance the properties and performance, polymeric electrode materials can be modified suitably by metal oxides and carbon materials resulting in a composite that helps in the collection and accumulation of charges due to large surface area. The carbon-polymer nanocomposites assist in overcoming the difficulties arising in achieving the high performance of polymeric compounds and deliver high-performance composites that can be used in electrochemical energy storage devices. Carbon-based polymer nanocomposites have both advantages and disadvantages, so in this review, attempts are made to understand their synergistic behavior and resulting performance. The three electrochemical energy storage systems and the type of electrode materials used for them have been studied here in this article and some aspects for example morphology, exterior area, temperature, and approaches have been observed to influence the activity of electrochemical methods. This review article evaluates and compiles reported data to present a significant and extensive summary of the state of the art.

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Interface design for high energy density polymer nanocomposites

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

Cited by 563 publications

References 273 publications

Tuning Nanofillers in In Situ Prepared Polyimide Nanocomposites for High‐Temperature Capacitive Energy Storage

Tuning Nanofillers in In Situ Prepared Polyimide Nanocomposites for High‐Temperature Capacitive Energy Storage

The search for enhanced dielectric strength of polymer‐based dielectrics: A focused review on polymer nanocomposites

Carbon-Based Polymer Nanocomposite for High-Performance Energy Storage Applications

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