Publication date: 10th April 2024
Developing solid electrolytes with high ionic conductivity, high Li-ion transference number (tLi+), and high electrochemical stability is strongly required for high-performance all-solid-state batteries. Molecular crystals have attracted considerable attention as a novel candidate for such solid electrolytes.[1] In this study, we fabricated the molecular crystalline electrolyte, Li2{N(SO2CF3)}2(NCCH2CH2CN)3 (Li2(TFSA)2(SN)3), through a quite simple process using Li{N(SO2CF3)2}2 (LiTFSA) and succinonitrile (SN) as precursor materials. Single crystal X-ray structural analysis confirmed the detailed crystal structure of Li2(TFSA)2(SN)3 with well-ordered arrangements of Li-ions corresponding to a Li-ion conduction path in the crystal lattice. Notably, Li2(TFSA)2(SN)3 demonstrated solid-state ion conductivity of 3 × 10-5 S/cm at room temperature, a high Li-ion transference number of 0.98, exceptional electrochemical stability for 5 V-class cathodes, and compatibility with the dissolution and deposition of Li metal. Additionally, scanning electron microscopy (SEM) observations revealed the presence of crystalline grain boundaries in this molecular crystalline electrolyte showing the significance of forming a crystal-based interface for selective Li-ion conduction within molecular crystalline electrolytes. These findings, based on the X-ray crystal structural determination, electrochemical measurements, and SEM observations, highlight the critical roles of component selection, conduction paths in the crystal structure, and crystalline interfaces in developing superior molecular crystalline electrolytes for advancing all-solid-state lithium batteries.
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.