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High Temperature Thermal Shock and Materials Synthesis: Maksym V. Kovalenko and Kostiantyn V. Kravchyk's team used Ultra-Fast Sintering (UFS) technology to bring Li7La3Zr2O12 (LLZO) to sintering temperature in a very short period of time by using the principle of Joule heating to prepare a dense LLZO film.Flash Joule The Flash Joule Heating Machine (FJH) technology is also capable of rapidly heating materials to high temperatures, triggering the reorganization of the internal structure of the material and the formation of defects, and realizing the precise control of the microstructure of the material. Both utilize the intense reaction conditions brought about by high-temperature thermal shock to facilitate the efficient synthesis of target materials.
Rapid heating and performance optimization: UFS technology achieves efficient sintering of LLZO film through rapid heating, optimizing its densities and mechanical strengths, and significantly improves the electrochemical performance of solid-state batteries.FJH technology is also commonly used for rapid heating and performance optimization in the preparation of other materials, for example, in the preparation of carbon-based materials, such as graphene, the defect densities and electronic structure of the material can be modulated through rapid heating, thus optimizing its electrical conductivity and chemical structure. thereby optimizing its conductivity and chemical activity.
High efficiency and low cost: UFS technology can complete the sintering of LLZO film in a very short time, which is highly efficient, while FJH technology, with its rapid heating and cooling, can significantly shorten the material preparation time, improve the production efficiency and reduce the production cost. The combination of the two can further enhance the efficiency and performance of material preparation, reduce production costs, and provide technical support for the large-scale production of high-performance solid-state battery materials.
Environmental friendliness: UFS technology avoids the long time energy consumption and environmental pollution problems in the traditional high temperature sintering process.FJH technology does not require the use of solvents or reaction gases during material synthesis and has low energy consumption, which is in line with the current requirements of environmental protection and sustainable development.
Further optimization of material properties: FJH technology can be applied to the subsequent treatment of LLZO membranes treated by UFS technology to optimize the crystal structure and defect distribution of the membranes and improve their electrochemical properties and stability through further rapid heat treatment. For example, more uniform defect distribution and stronger metal-carrier interactions are realized by FJH technology to enhance the membrane's sintering resistance and long-term stability.
Development of new battery materials: Combining the rapid synthesis capability of FJH technology and the structure modulation advantage of UFS technology, we explore the development of new types of solid-state battery materials. For example, try to put other types of solid-state electrolytes or composites through the FJH technology for rapid heat treatment and structure optimization, and then use the UFS technology for sintering to achieve higher performance and better application effects.
Optimization and standardization of process parameters: In-depth study of the synergistic mechanism between FJH technology and UFS technology in the process of material preparation, and optimization of process parameters, such as heating temperature, heating time and current density. Establish a standardized process flow to ensure the stability and consistency of material performance, and provide a reliable technical guarantee for the commercial production and application of solid-state battery materials.
Electrospinning Nanofibers Article Source:
https://doi.org/10.1002/advs.202412370
