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|a 10.1002/adma.202415652
|2 doi
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|a pubmed24n1633.xml
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|a (DE-627)NLM381624862
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|a (NLM)39676395
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Guo, Yan
|e verfasserin
|4 aut
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|a Ultra-High Capacitive Energy Storage Density at 150 °C Achieved in Polyetherimide Composite Films by Filler and Structure Design
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 16.12.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2024 Wiley‐VCH GmbH.
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|a Polymer dielectrics are crucial for electronic communications and industrial applications due to their high breakdown field strength (Eb), fast charge/discharge speed, and temperature stability. The upcoming electronic-electrical systems pose a significant challenge, necessitating polymeric dielectrics to exhibit exceptional thermal stability and energy storage capabilities at high temperatures. Here, ultra-high dielectric constant (ɛr) and charge/discharge efficiency (η) of 0.55Bi0.5(Na0.84K0.16)0.5TiO3-0.45(Bi0.1Sr0.85)TiO3 (BNKT-BST) ceramics are prepared by the solid-phase reaction method and added to polyetherimide (PEI) to form BNKT-BST/PEI nanocomposites with various structures. The findings indicate that the sandwich-structured BNKT-BST/PEI nanocomposite achieves the highest discharged energy density (Ud) of 7.7 J cm-3 with η of 80.2% when the Eb is 650 MV m-1 at 150 °C. This is primarily due to the incorporation of BNKT-BST nanoparticles and the multilayer structure design, which significantly improves the composite's ɛr and Eb. Additionally, the sandwich-structured composites show excellent cycling stability at 500 MV m-1 and 150 °C, with Ud of ≈ 4.7 J cm-3 and η greater than 90%. The research presents nanocomposites with high energy storage density and excellent stability, crucial for the practical application of polymer dielectrics in high-temperature environments
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|a Journal Article
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|a BNKT‐BST/PEI nanocomposite
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|a charging/ discharging efficiency
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|a discharged energy density
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|a high‐temperature
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|a Zhao, Weichen
|e verfasserin
|4 aut
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|a Li, Da
|e verfasserin
|4 aut
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|a Liu, Jinnan
|e verfasserin
|4 aut
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|a Qian, Jin
|e verfasserin
|4 aut
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|a Pang, Lixia
|e verfasserin
|4 aut
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|a Zhou, Tao
|e verfasserin
|4 aut
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|a Liu, Wenfeng
|e verfasserin
|4 aut
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|a Liu, Zhaobo
|e verfasserin
|4 aut
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|a Huang, Houbing
|e verfasserin
|4 aut
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|a Zhai, Jiwei
|e verfasserin
|4 aut
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| 700 |
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|a Zhou, Di
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g (2024) vom: 15. Dez., Seite e2415652
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g year:2024
|g day:15
|g month:12
|g pages:e2415652
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|u http://dx.doi.org/10.1002/adma.202415652
|3 Volltext
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