Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The rapid development of renewable energy systems, electric vehicles, and pulsed equipment requires energy storage media to have a high energy storage density and efficiency in a wide temperature range. The state-of-the-art biaxially oriented polypropylene (BOPP) film is insufficient to meet the growing demand for energy storage devices due to its low energy storage density and working temperature, which make it a research hotspot for developing dielectric energy storage materials. In this manuscript, based on the epoxy materials that have been shown as a potential energy storage medium, we aim to reduce the influence of the benzene ring delocalization structure on the energy storage losses and enhance the efficiency by gradually replacing them with cyclohexane structures to adjust the segment unsaturation of epoxy materials. The results show that by partially reducing the unsaturation of the curing agent, the epoxy material achieves an excellent high-temperature energy storage density of 2.21 J/cm at 150 °C and 300 MV/m while maintaining an extremely high energy storage efficiency of 99.2%. Leakage current density and high-voltage dielectric spectroscopy tests confirm that a moderate reduction of the segment unsaturation of epoxy materials can greatly inhibit polarization loss at high temperatures, which may explain their high energy storage efficiency.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.langmuir.3c01211 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
CuCo-Layered Double Hydroxide Nanosheets Grown on Hierarchical Carbonized Wood as Bifunctional Electrode for Supercapacitor and Hydrogen Evolution Reaction.
Adv Sci (Weinh)
September 2025
Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China.
Carbonized wood has great potential as a self-supported electrode for energy storage/conversion applications. However, developing efficient and economical bifunctional electrodes by customizing the surface structure remains a challenge. This study proposes a novel multifunctional electrode design strategy, using N/P co-doped carbonized wood (NPCW) as carriers and in situ grows copper nanoparticles (Cu NPs) as nucleation centers to induce vertical growth of CuCo-layered double hydroxid (LDH) nanosheets along the substrate.
View Article and Find Full Text PDFConstructing Aggregation-Induced Emission Luminogens With Significantly Improved Performance Through Local Chemical Modification From Thiophene to Thiophene Sulfone.
Luminescence
September 2025
Beijing Key Laboratory of Energy Conversion and Storage Materials, Beijing, China.
A novel aggregation-induced emission (AIE) system with superior performance was successfully developed through local chemical modification from thiophene to thiophene sulfone. This approach, leveraging easily accessible tetraphenylthiophene precursors, dramatically enhances the photophysical properties in a simple oxidation step. Notably, the representative 2,3,4,5-tetraphenylthiophene sulfone (3c) demonstrates remarkable solid-state emission characteristics with a fluorescence quantum yield of 72% and an AIE factor of 240, substantially outperforming its thiophene analog.
View Article and Find Full Text PDFSelf-Transformation of 2D SnSe Nanosheets into SnO/Se Nanocomposites for Efficient Photodetection.
ACS Appl Mater Interfaces
September 2025
School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong518055, China.
The rapid development of liquid exfoliation technology has boosted fundamental research and applications of ultrathin two-dimensional (2D) materials. However, the small-sized exfoliated 2D materials with a high specific surface area may exhibit poor chemical stability. Understanding the stability of 2D crystals will be significant for their preservation and service and for the development of new stable phases via the spontaneous transition from unstable structures.
View Article and Find Full Text PDFExploring the functional properties of the diamond-like quaternary compound LiZnGeS for potential energy applications: a theoretical approach.
Phys Chem Chem Phys
September 2025
Department of Physics, Mizoram University, Aizawl-796004, India,.
It is anticipated that wide-bandgap semiconductors (WBGSs) would be useful materials for energy production and storage. A well-synthesized, yet scarcely explored, diamond-like quaternary semiconductor LiZnGeS has been considered for this work. Herein, we have employed two well-known functionals GGA and mGGA within a framework of density functional theory (DFT).
View Article and Find Full Text PDFSignificantly enhanced breakdown strength and energy density performances of methyl methacrylate--glycidyl methacrylate nanocomposites filled with BNNs@PDA-Ag hybrid structures.
Nanoscale
September 2025
School of Chemical Engineering, Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China.
Electronic capacitor films based on polymer matrices and inorganic nanofillers capable of storing more energy play a crucial role in advanced modern electrical industries and devices. Herein, a series of nanocomposite films composed of "core-shell-dot" BNNs-PDA@Ag hybrid structures with multiple breakdown strength enhancement mechanisms as fillers and methyl methacrylate--glycidyl methacrylate (MG) copolymers as matrices were successfully synthesized. The introduced 2D and wide-bandgap BNNs not only enhanced the breakdown strength by taking advantage of their excellent physical properties, but also further improved their energy storage properties both at ambient and elevated temperatures through the formation of deeper traps at the organic-inorganic interface.
View Article and Find Full Text PDF