Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.070
Publication date: 16th December 2024
High-temperature sintering of composite cathodes triggers lithium loss and secondary phase formation, one of the major challenges in oxide-based solid-state batteries. However, the interdiffusion during sintering in the different partial pressures of lithium and oxygen remains poorly understood. Here, we study the reaction mechanism for the formation of impurity phases during the co-firing of Li-garnet (Li7La3Zr2O12) and LiCoO2 at high temperature and propose an alternative processing strategy that enables the production of impurity-free all-oxide composite cathodes. By using Li-rich atmospheres, the secondary phase of LaCoO3 is avoided and the composite cathodes exhibit >95% relative density. The electrical resistance of the composite cathode is increased by 3-4 orders of magnitude. Electronic conductivity of over 1 mS cm-1 is achieved at room temperature. An unprecedented areal discharge capacity of 3.48 mAh cm-2 is realised at current densities of 0.25 mA cm-2, demonstrating the high performance of the cathodes. Our results encourage further demonstration of all oxide solid state battery prototypes in combination with thin oxide electrolytes and lithium metal anodes.
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.