The list of international projects SAS
Institute of Materials Research
Research and development of high-entropy ferroelectric materials for energy storage
Výskum a vývoj vysokoentropických feroelektrických materiálov pre uskladnenie elektrickej energie
| Duration: |
1.7.2024 - 30.6.2026 |
| Program: |
Bilateral - other |
| Project leader: |
RNDr. Kovaľ Vladimír DrSc. |
| Annotation: | The main goal of the proposed project is to establish and develop a scientific cooperation between Slovakia and China in the field of ferroelectric materials for energy storage applications. Joining of the research teams from both countries is motivated not only because of great technological potential of the ferroelectrics but also due to the fascinating physics behind their energy storage properties. Dielectrics play an important role in high-power energy storage applications, such as electromagnetic devices and hybrid electric vehicles, due to their fast charge-discharge capability. However, dielectric capacitors, although presenting faster charging/discharging rates and better stability compared with supercapacitors or Li-ion batteries, are limited in applications due to their relatively low energy density. To date, the best materials for dielectric capacitors are ferroelectrics based on lead-containing oxides. Toxicity of lead and environmental concerns, however, have prompted the search for lead-free alternatives. In the proposed collaborative research, we will employ the high entropy concept to develop novel lead-free ferroelectrics for effective energy storage in next generation dielectric capacitors. Recently, we have demonstrated that the energy density and efficiency of high-entropy ferroelectrics can be substantially improved by texturing their microstructure and optimizing the field-induced phase transitions. However, the origin of reversible phase transitions and enhanced energy storage performance in these modern high-entropy functional materials still needs a proper interpretation and confirmation from detailed experimental studies. Our aim is to combine research on relaxor ferroelectrics in Slovakia with activities in China focused on innovative technique of templated grain growth of electroceramics and develop lead-free highly textured ferroelectric ceramics with excellent properties for high-power energy storage applications. |
High performance duplex ceramics for efficient maschining of nickel superalloysd
Vysoko odolná duplexná keramika pre efektívne obrábanie niklových superzliatin
Developoment and processing of advanced metal hydride composites with specific microstructure properties for mobile hydrogen storage applications
Vývoj a spracovanie pokročilých metalhydridových kompozitných materiálov pre uskladnenie vodíka určených pre mobilné aplikácie
| Duration: |
1.5.2023 - 30.4.2026 |
| Program: |
ERANET |
| Project leader: |
RNDr. Nigutová Katarína PhD. |
| Annotation: | The innovation goals of this project are to provide a novel metal hydride composite offering hydrogenation capacity close to Mg alloys, faster kinetics, higher dehydrogenation capacity, and limited material degradation per cycle. The material will be based on the concept of high entropy alloy with the addition of catalysts and will be produced not only in the conventional powder form, but also as thin sheets and bulk materials. The project will improve the fundamental understanding of the mechanisms governing the hydrogenation and high-temperature behavior of HEA-based composites and also provide a functional model of a new composite material for hydrogen storage, followed by a technology for its fabrication. |
The total number of projects: 3
