Realizing enhanced energy density in ternary polymer blends by intermolecular structure design

Li, Kai; Liu, Yang; Ma, Weigang; Takesue, Naohisa; Samart, Chanatip; Tan, Hua; Jiang, Shenglin; Dou, Zhanming; Hu, Yongming; Zhang, Shujun; Zhang, Haibo

doi:10.1016/j.cej.2022.136980

Cited by 11 publications

(8 citation statements)

References 53 publications

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“…It is important to point out that dense chain packing contributes to the reduced leakage current and improved breakdown strength. 47 The DSC curves in Fig. 6(e and f) depict the second heating curves and the cooling curves of all the PVDF-based composite films.…”

Section: Resultsmentioning

confidence: 99%

Achieving synergistic improvement in dielectric constant and energy storage properties of all-organic liquid crystal molecule/PVDF composites

Luo

Yan

et al. 2022

J. Mater. Chem. C

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Section: Resultsmentioning

confidence: 99%

Achieving synergistic improvement in dielectric constant and energy storage properties of all-organic liquid crystal molecule/PVDF composites

Luo

Yan

et al. 2022

J. Mater. Chem. C

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“…It can be seen that the CSANG based on different CS concentrations all perform an excellent broadband acoustic response, the maximum output voltage of which occurring at 1.7% concentration. Corresponding to the morphology, this proves that the lamellar porous structure can enhance the acoustic response properties of the aerogel to a certain extent . Additionally, the resonant frequency of CSANG shifts to the right as the concentration increases to 2%, as the relatively dense structure results in higher mechanical strength.…”

mentioning

confidence: 65%

A Directional Chitosan Sound Sensor Based on Piezoelectric–Triboelectric Sensing

et al. 2023

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Herein, we have constructed a directional sound sensor based on an anisotropic chitosan aerogel. Because of the lamellar porous structure, this chitosan aerogel exhibits a distinct anisotropic behavior, featuring the compressive stress along the direction of the parallel laminate structure, being approximately 2.6 times that in the orthogonal direction. Simultaneously, the chitosan aerogel is used as a directional sound-sensing material, which exhibits excellent acoustic–electric conversion performance with a marked difference in the direction perpendicular to the laminate structure than in the parallel direction. The CSANG has an optimum electrical output of 66 V and 9.2 μA under a sound stimulation of 150 Hz and 120 dB in the orthogonal direction of the laminate structure. Therefore, this directional chitosan sound sensor with excellent biocompatibility and sound sensitivity demonstrates promising application potential in the field of intelligent sensing and artificial cochlea.

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“…From the perspective of the practical application, long-term operating stability and reliability of dielectric capacitors are also pivotal factors to satisfy the requirements of electronic component industrialization. , The charged–discharged cycling stability of the representative PBP nanocomposite is evaluated by the polarization fatigue behavior test under an electric field of 300 MV/m. From Figure a,b, the D – E loops of the PBP nanocomposite exhibiting a high consistency after 10 4 cyclic charge–discharge measurements and the corresponding U d and η maintain almost constant.…”

Section: Resultsmentioning

confidence: 99%

Significantly Enhanced Breakdown Strength and Energy Density in Nanocomposites by Synergic Modulation of Structural Design and Low-Loading Nanofibers

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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Polymer-based dielectric nanocomposites have attracted great attention due to the advantages of high-power density and stability. However, due to the limited breakdown strength (E b) of the dielectrics, the unsatisfactory energy density becomes the bottleneck that restricts their applications. Here, newly designed sandwich-structured nanocomposites are proposed, which includes the introduction of low-loading 0.4BiFeO3–0.6SrTiO3 (BFSTO) nanofibers into the poly(vinylidene fluoride-co-hexafluoropropylene) (P(VDF-HFP)) matrix as the polarization layer (B-layer) to offer high permittivity and the selection of poly(methylmethacrylate) (PMMA)/P(VDF-HFP) all-organic blend film as the insulation layer (P-layer) to improve E b of the nanocomposites. The optimized sandwich-structured PBP nanocomposite exhibits significant enhancement in E b (668.6 MV/m), generating a discharged energy density of 17.2 J/cm3. The dielectric and Kelvin probe force microscope results corroborate that the outer P-layer has a low surface charge density, which can markedly impede the charge injection from the electrode/dielectric interface and thereby suppress the leakage current inside the nanocomposite. Furthermore, both the finite element simulations and capacitive series models demonstrate that the homogenized distribution of electric field in the PBP sandwich-structured nanocomposite favors the improvement of energy storage performance. This work not only provides insightful guidance into the in-depth understanding of the dielectric breakdown mechanism in sandwich-structured nanocomposites but also offers a novel paradigm for the development of polymer-based nanocomposites with high E b and discharged energy density.

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Realizing enhanced energy density in ternary polymer blends by intermolecular structure design

Cited by 11 publications

References 53 publications

Achieving synergistic improvement in dielectric constant and energy storage properties of all-organic liquid crystal molecule/PVDF composites

Achieving synergistic improvement in dielectric constant and energy storage properties of all-organic liquid crystal molecule/PVDF composites

A Directional Chitosan Sound Sensor Based on Piezoelectric–Triboelectric Sensing

Significantly Enhanced Breakdown Strength and Energy Density in Nanocomposites by Synergic Modulation of Structural Design and Low-Loading Nanofibers

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