Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
DOI: https://doi.org/10.29363/nanoge.matsus.2024.277
Publication date: 18th December 2023
The rapidly growing need for energy storage exceeds the energy density of the currently dominant commercial lithium-ion batteries (~200 Wh/kg). Therefore, there is an exhaustive search to find a viable alternative to lithium-ion batteries. Thus, metal-sulfur technology is strongly emerging to become the next-generation of rechargeable batteries. Lithium-sulfur (Li-S) and sodium-sulfur (Na-S) batteries are gaining attention because of their high theoretical gravimetric energy densities, 2615 and 1673 Wh/kg, respectively, as well as the low cost and non-toxicity of sulfur [1][2].
Nevertheless, sulfur has a few drawbacks that negatively affect battery life, being the shuttle effect and its sluggish reaction kinetics the most studied. Among the different solutions proposed to alleviate these problems, it is worth highlighting the trapping of polysulfides through chemical interaction [3]. Recently, it has been demonstrated that the application of a magnetic field to materials with paramagnetic properties can improve cycling performance [4].
One of the materials showing these properties is ZnFe2O4 [5]. As a novelty, we propose the use of recycled ZnFe2O4 from display wires. Detailed study on the effect of applying a magnetic field on the electrochemical behavior has been carried out. Tests have shown that this sustainable material can act as an efficient sulfur matrix in electrodes with high sulfur content >70% S and high sulfur loading of up to 10 mg/cm2. This excellent performance has also been demonstrated for high-rate capability up to 10C. These results overperform those previously published for ZnFe2O4 based sulfur cathodes, demonstrating higher specific charge values when applying a permanent magnetic field, especially in long-term tests.
This research has been funded by Ministerio de Ciencia e Innovación MCIN/AEI/10.13039/501100011033 and European Union “NextGenerationEU”/PRTR [Projects PID2020–113931RB–I00 & PDC2021-120903-I00] and Junta de Andalucía [Group FQM–175]. Alvaro Bonilla gratefully acknowledges Spanish Ministry of Universities the granting of aid for predoctoral contracts (FPU20/02673). The authors wish to acknowledge the technical staff from the Instituto Químico para la Energía y el Medioambiente (IQUEMA) and Servicio Central de Apoyo a la Investigacion (SCAI) of Córdoba University.
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.