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Flexible barium titanate@polydopamine/polyvinylidene fluoride/polymethyl methacrylate nanocomposite films with high performance energy storage

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Abstract

The introduction of high-permittivity inorganic ceramic materials into organic polymer-based dielectric materials can effectively increase the energy density of film capacitors. In this study, polydopamine (PDA) was coated on BaTiO3 (BT) nanoparticles through a condensation reaction to form a core–shell structure of BT@PDA. Then it is introduced into the polyvinylidene fluoride/polymethyl methacrylate (PVDF/PMMA) matrix, and the BT@PDA/PVDF-PMMA nanocomposite flexible energy storage films are prepared by the solution casting method. When BT@PDA is 5%, the breakdown strength of the nanocomposite film is 378 MV/m, and the maximum energy density is 11.15 J/cm3. Excellent comprehensive electrical properties are due to the enhanced interface coupling between the BT nanofiller and the PVDF macromolecular chain. The introduction of PMMA can suppress the increase in residual polarization. Utilizing the respective advantages of BT@PDA nanocomposite and PVDF-PMMA blending, while improving the breakdown strength and polarization difference, this work provides feasible strategy for improving the energy density and discharge efficiency of flexible PVDF-based films capacitors.

Graphical abstract

The energy density of the nanomaterials with 5% BT@PDA filler was 11.15 J/cm3 at 378 MV/m electric field intensity.

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Funding

This work was supported in part by the National Natural Science Foundation of China (No. 21005003), the Natural Science Basic Research Plan in Shaanxi Province of China (2019JM-091), the Scientific Research Program funded by the Department of Science and Technology of Shaanxi Province (No. 2019JQ-897), and Serving Local Special Scientific Research Project of Shaanxi Provincial Education Department (22JC004). This work was also supported by Taif University Researchers Supporting Project (number TURSP-2020/109), Taif University, Taif, Saudi Arabia.

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Authors and Affiliations

  1. Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of Chemistry, Northwest University, Xi’an, 710127, China

    Yan Wang & Bin Cui

  2. Faculty of Chemistry and Chemical Engineering, Key Laboratory of Functional Materials of Baoji, Engineering Research Center of Advanced Ferroelectric Functional Materials, Baoji University of Arts and Sciences, 1 Hi-Tech Avenue, Baoji, Shaanxi, 721013, China

    Yan Wang, Dandan Yang, Kang Du, Yao Su, Rong Ma & Dengwei Hu

  3. Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21974, Saudi Arabia

    Mahmoud M. Hessien, Mohamed M. Ibrahim & Gaber A. M. Mersal

  4. Department of Chemistry, Turabah University College, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia

    Salah M. El-Bahy

  5. School of Electronic Information & Artificial Intelligence, Shaanxi University of Science and Technology, Xi’an, 710021, China

    Qibin Yuan

  6. College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, China

    Mina Huang

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  1. Yan Wang
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Wang, Y., Yang, D., Hessien, M.M. et al. Flexible barium titanate@polydopamine/polyvinylidene fluoride/polymethyl methacrylate nanocomposite films with high performance energy storage. Adv Compos Hybrid Mater 5, 2106–2115 (2022). https://doi.org/10.1007/s42114-022-00552-w

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