Results 11 to 20 of about 6,743 (213)

High energy storage density and power density achieved simultaneously in NaNbO3-based lead-free ceramics via antiferroelectricity enhancement

open access: yesJournal of Materiomics, 2021
High-performance lead-free dielectric ceramics with simultaneously high energy storage density and power density are in high demanded for pulse power systems. To realize excellent energy-storage characteristics, a strategy to enhance antiferroelectricity
Xiaoyan Dong   +7 more
doaj   +3 more sources

Maximization of Spatial Charge Density: An Approach to Ultrahigh Energy Density of Capacitive Charge Storage [PDF]

open access: yesAngewandte Chemie - International Edition, 2020
AbstractCapacitive energy storage has advantages of high power density, long lifespan, and good safety, but is restricted by low energy density. Inspired by the charge storage mechanism of batteries, a spatial charge density (SCD) maximization strategy is developed to compensate this shortage by densely and neatly packing ionic charges in capacitive ...
Hongyun Ma, , Mingmao Wu
exaly   +3 more sources

High density mechanical energy storage with carbon nanothread bundle [PDF]

open access: yesNature Communications, 2020
Carbon nanothreads are promising for applications in mechanical energy storage and energy harvesting. Here the authors use large-scale molecular dynamics simulations and continuum elasticity theory to explore mechanical energy storage in carbon ...
Haifei Zhan   +4 more
doaj   +4 more sources

Selection of metal hydrides-based thermal energy storage: Energy storage efficiency and density targets

open access: yesInternational Journal of Hydrogen Energy, 2018
Thermochemical energy storage based on metal hydrides has gained tremendous interest in concentrated solar power systems (CSP). In such systems, two metal hydride beds are connected and operating in an alternative way as energy storage or hydrogen storage. However, the selection of metal hydrides is essential for a smooth operation of these CSP systems
Serge Nyallang Nyamsi   +2 more
exaly   +3 more sources

Enhanced energy storage properties of amorphous BiFeO3/Al2O3 multilayers

open access: yesJournal of Materials Research and Technology, 2021
The energy storage density of ferroelectric thin film capacitors is mainly limited by the breakdown strength. Here we demonstrate that the high breakdown strength and high energy storage density can be achieved by constructing BiFeO3/Al2O3 ...
Ze Li   +8 more
doaj   +1 more source

Enhancing the Energy Density of Tricritical Ferroelectrics for Energy Storage Applications [PDF]

open access: yesMaterials, 2019
Recently, tricritical ferroelectrics have been drawn tremendous attention, owing to their ultrahigh dielectric permittivities of up to εr > 5 × 104, and their consideration for prototype materials in the development of high-performance energy storage devices.
Li He   +8 more
openaire   +2 more sources

Perspectives and challenges for lead-free energy-storage multilayer ceramic capacitors

open access: yesJournal of Advanced Ceramics, 2021
The growing demand for high-power-density electric and electronic systems has encouraged the development of energy-storage capacitors with attributes such as high energy density, high capacitance density, high voltage and frequency, low weight, high ...
Peiyao Zhao   +5 more
doaj   +1 more source

Characteristics of energy evolution during total stress-strain in rocks under uniaxial compression

open access: yesMeikuang Anquan, 2023
To study the energy evolution of rocks under uniaxial compression, uniaxial compression and uniaxial step loading and unloading tests were performed on granite, sandstone, and coal, and the stress-strain curves under different conditions were obtained ...
LI Dongwen   +3 more
doaj   +1 more source

Circuit response and experimental verification of high energy storage density materials

open access: yesScientific Reports
The electrical performance of high energy storage density materials has always been a research direction that has received high attention. This study used three typical high energy storage density materials and a traditional energy storage material to ...
Zheng Li   +4 more
doaj   +3 more sources

Performance of compressed air energy storage system with regenerative heat exchangers [PDF]

open access: yesE3S Web of Conferences, 2020
In order to improve the heat storage and heat exchange system of advanced adiabatic compressed air energy storage (AA-CAES) system, an AA-CAES system with regenerative heat exchangers (RHEs) is studied. The RHE is used to replace the conventional complex
Wang Shibiao   +3 more
doaj   +1 more source

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