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High-temperature thermal shock and material conversion: Jose Alarco and Amandeep Singh Pannu's team used flash Joule heating technology to quickly convert carbon in human hair into high-quality graphene carbon (GH) and applied it to the negative electrode of lithium-ion batteries. Flash Joule Heating Machine (FJH) technology can also quickly heat materials to high temperatures, triggering the reorganization of the internal structure of the material and the formation of defects, and achieve precise control of the material's microstructure. Both use the violent reaction conditions brought about by high-temperature thermal shock to promote the efficient conversion of target materials.
Rapid heating and performance optimization: Flash Joule heating technology achieves efficient preparation of GH materials through rapid heating, optimizes its graphitization degree and electrochemical properties, and significantly improves the specific capacity and cycle stability of lithium-ion 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 density and electronic structure of the material can be regulated by rapid heating, thereby optimizing its conductivity and chemical activity.
High efficiency and low cost: Flash Joule heating technology can complete the conversion of biowaste in a short time and is highly efficient. FJH technology also greatly shortens the time of material preparation, improves production efficiency and reduces production costs due to its rapid heating and cooling characteristics. The combination of the two can further improve the efficiency and performance of material preparation, reduce production costs, and provide technical support for large-scale production of high-performance battery materials.
Environmental friendliness: Flash Joule heating technology avoids the long-term energy consumption and environmental pollution problems in traditional high-temperature treatment, and does not require the use of solvents or reaction gases during material synthesis. It is an environmentally friendly preparation method. FJH technology also does not require the use of solvents or reaction gases, and has low energy consumption, which meets the current requirements of environmental protection and sustainable development.
Further optimization of material properties: FJH technology can be applied to the subsequent treatment of GH materials treated by flash Joule heating technology. Through further rapid heat treatment, the crystal structure and defect distribution of the material can be optimized to improve its electrochemical performance and stability. For example, the FJH technology can achieve a more uniform defect distribution and stronger metal-carrier interaction, and enhance the material's anti-sintering ability and long-term stability.
Development of new battery materials: Combine the rapid synthesis capability of FJH technology and the conversion advantages of flash Joule heating technology to explore and develop new battery materials. For example, try to use FJH technology to quickly heat treat and optimize the structure of other types of biowaste or composite materials, and then use flash Joule heating technology to convert them to achieve higher performance and better application effects.
Optimization and standardization of process parameters: In-depth study of the synergistic mechanism of FJH technology and flash Joule heating technology in the material preparation process, optimize process parameters such as heating temperature, heating time, current density, etc. Establish a standardized process flow to ensure the stability and consistency of material performance, and provide reliable technical guarantees for the commercial production and application of battery materials.
Electrospinning Nanofibers Article Source:
https://doi.org/10.1002/adsu.202300610
