Publication date: 10th April 2024
In developing all-solid-state batteries with oxide-based materials, the densification of ceramic electrolytes (CE) is a key step to allow circulation of lithium ions. Traditional sintering techniques require high temperatures that often lead to unwanted interactions between the CE and active materials, undermining battery performance.
This research presents an alternative approach using the glass-forming abilities of certain CEs that can facilitate sintering at lower temperatures. When glass is heated above its glass transition temperature, it transforms into a viscous phase that allows for simultaneous densification and crystallization. If the glass transition temperature and crystallization temperature are lower than the sintering temperature, the resulting thermal treatment leads to a more conductive and denser CE compared to an already crystallized one subjected to the same treatment. We use a Nasicon-type ceramic electrolyte—specifically, Li1.5Al0.5Ge1.5(PO4)3 (LAGP)—to explore this method.
The study investigates the crystallization behavior of LAGP and its impact on ionic conductivity. Our results demonstrate an improvement in the density and conductive properties of the glass-ceramic electrolyte with a significatively lower temperature treatment. Moreover, X-ray diffraction techniques are employed to monitor the progression of crystallinity, revealing that an autocatalytic nucleation process allows for earlier lithium-ion pathway creation.
This finding provides meaningful insights into the production of ASSBs that could avoid the drawbacks of high-temperature assembly.
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.