Flexible polyolefin dielectric by strategic design of organic modules for harsh condition electrification

Deshmukh, Ajinkya A.; Wu, Chao; Yassin, Omer; Mishra, Ankit; Chen, Lihua; Alamri, Abdullah; Li, Zongze; Zhou, Jierui; Mutlu, Zeynep; Sotzing, Michael; Rajak, Pankaj; Shukla, Stuti; Vellek, John; Baferani, Mohamadreza Arab; Çakmak, Mükerrem; Vashishta, Priya; Ramprasad, Rampi; Cao, Yang; Sotzing, Gregory A.

doi:10.1039/d1ee02630e

Cited by 96 publications

(67 citation statements)

References 44 publications

(51 reference statements)

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“…F‐PI/PCBM delivered a record 709 MV m −1 in E η90 at 150 °C. This is a 29% enhancement versus its pristine counterpart and is 1.34‐ and 1.08‐fold larger than those of PEI/PCBM [ 35 ] and recently reported synthesized novel polymer o ‐POFNB [ 53 ] in E η90 , respectively. It is even comparable to the room‐temperature value (≈700 MV m −1 ) of BOPP.…”

Section: Resultsmentioning

confidence: 82%

“…F‐PI/PCBM also provides an E b as high as 815 MV m −1 at 150 °C, which is comparable to the room‐temperature value (≈820 MV m −1 ) [ 6 ] of BOPP. The E b of F‐PI/PCBM at 200 °C delivers an E b of up to 692 MV m −1 , which is much larger than those of F‐PI and PEI/PCBM [ 35 ] and o ‐POFNB [ 53 ] in E b . Notably, pristine F‐PI offers a relatively high E η90 and E b , up to E η90 ≈ 550 MV m −1 and E b ≈ 664 MV m −1 at 150 °C.…”

Section: Resultsmentioning

confidence: 99%

“…Concurrently, the tanδ of F-PI and F-PI/PCBM is basically lower than 1% over the frequency range. Figure 3a and Figure S11, Supporting Information show that both ε r and tanδ exhibit a slight enhancement with increasing temperature from −50 to 200 °C, [3,35] novel synthesized polymers [51][52][53]64,65] and polymer composites [3,23,[29][30][31]35,47] at 150 °C (e) at 200 °C (f). for example, 2.99 at 150 °C to 3.08 at 200 °C.…”

Section: Electric Energy Storage Capabilitymentioning

confidence: 99%

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Scalable Ultrathin All‐Organic Polymer Dielectric Films for High‐Temperature Capacitive Energy Storage

et al. 2022

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The miniaturization of electronic devices and power systems for capacitive energy storage under harsh environments requires scalable high‐quality ultrathin high‐temperature dielectric films. To meet the need, ultrasonic spray‐coating (USC) can be used. Novel polyimides with a dipolar group, CF3 (F‐PI), and all‐organic composites with trace organic semiconductor can serve as models. These scalable high‐quality ultrathin films (≈2.6 and ≈5.2 µm) are successfully fabricated via USC. The high quality of the films is evaluated from the micro‐millimeter scale to the sub‐millimeter and above. The high glass transition temperature Tg (≈340 °C) and concurrent large bandgap Eg (≈3.53 eV) induced by weak conjugation from considerable interchain distance (≈6.2 Å) enable F‐PI to be an excellent matrix delivering a discharge energy density with 90% discharge efficiency Uη90 of 2.85 J cm−3 at 200 °C. Further, the incorporation of a trace organic semiconductor leads to a record Uη90 of ≈4.39 J cm−3 at 200 °C due to the markedly enhanced breakdown strength caused by deep charge traps of ≈2 eV. Also, a USC‐fabricated multilayer F‐PI foil capacitor with ≈85 nF (six layers) has good performance at 150 °C. These results confirm that USC is an excellent technology to fabricate high‐quality ultrathin dielectric films and capacitors.

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Section: Resultsmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 99%

Section: Electric Energy Storage Capabilitymentioning

confidence: 99%

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Scalable Ultrathin All‐Organic Polymer Dielectric Films for High‐Temperature Capacitive Energy Storage

et al. 2022

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“…The comparison suggests the superior energy storage properties obtained with 5 vol% 2D BNNs/CRC composite films. Therefore, only a few prior research studies 9,42,[46][47][48][49][50][51] are reported achieving U d over 23 J cm À3 accompanied by Z above 80%, e.g., Cd 1Àx Zn x Se 1Ày S y nanodots/PVDF-HFP B 12.5 J cm À3 , 48 P(VDF-TrFE-CFE)/BNNS nanocomposite B9.9 J cm À3 , and a liner dielectric constant of polyoxafluoronorbornene of B6.7 J cm À3 . 49 The stability and reliability of discharged energy density and efficiency for the composite films play a vital role in practical applications.…”

Section: Resultsmentioning

confidence: 99%

Flexible cyanoethyl cellulose-based nanocomposites with superior energy storage capability

Zhao

et al. 2022

J. Mater. Chem. C

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“…At 150 °C, POFNB features an unprecedented U e of 5.7 J/cm −3 far outperforming the best reported flexible dielectrics (Wu et al, 2020). Deshmukh et al (2022) prepared a class of POFNB by the versatile ROMP, which is designed by changing the -CF 3 substitution position on the benzene ring to optimize the electrical and thermal properties (Figure 7A). Wide bandgap, freely rotatable structural groups along with a combination of flexible and rigid moieties, achieved through a molecular engineering approach and verified using computational methods resulted in a class of polymer dielectrics with the highest ever discharged energy density (6.5 J/cc) up to 200 °C.…”

Section: The Application Of Romp In Preparation Of Polymer Dielectricmentioning

confidence: 99%

Controllable synthesis and structural design of novel all-organic polymers toward high energy storage dielectrics

Gong

Cheng

et al. 2022

Front. Chem.

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As the core unit of energy storage equipment, high voltage pulse capacitor plays an indispensable role in the field of electric power system and electromagnetic energy related equipment. The mostly utilized polymer materials are metallized polymer thin films, which are represented by biaxially oriented polypropylene (BOPP) films, possessing the advantages including low cost, high breakdown strength, excellent processing ability, and self-healing performance. However, the low dielectric constant (εr < 3) of traditional BOPP films makes it impossible to meet the demand for increased high energy density. Controlled/living radical polymerization (CRP) and related techniques have become a powerful approach to tailor the chemical and physical properties of materials and have given rise to great advances in tuning the properties of polymer dielectrics. Although organic-inorganic composite dielectrics have received much attention in previous studies, all-organic polymer dielectrics have been proven to be the most promising choice because of its light weight and easy large-scale continuous processing. In this short review, we begin with some basic theory of polymer dielectrics and some theoretical considerations for the rational design of dielectric polymers with high performance. In the guidance of these theoretical considerations, we review recent progress toward all-organic polymer dielectrics based on two major approaches, one is to control the polymer chain structure, containing microscopic main-chain and side-chain structures, by the method of CRP and the other is macroscopic structure design of all-organic polymer dielectric films. And various chemistry and compositions are discussed within each approach.

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Flexible polyolefin dielectric by strategic design of organic modules for harsh condition electrification

Abstract: A paradigm-shifting design strategy is demonstrated that unifies the treatment of electronic and conformational properties of polymer dielectrics for concurrent high electric field and elevated temperature harsh conditions.

Cited by 96 publications

References 44 publications

Scalable Ultrathin All‐Organic Polymer Dielectric Films for High‐Temperature Capacitive Energy Storage

Scalable Ultrathin All‐Organic Polymer Dielectric Films for High‐Temperature Capacitive Energy Storage

Flexible cyanoethyl cellulose-based nanocomposites with superior energy storage capability

Controllable synthesis and structural design of novel all-organic polymers toward high energy storage dielectrics

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