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China's waste asphalt recycling material utilization rate is very low, every year in the road maintenance and treatment period will produce tens of millions of tons of waste asphalt recycling material, because of its poor degradability, can not achieve the purpose of saving resources and reducing environmental pollution.
Professor Jia Chuankun's team of Changsha University of Science and Technology invented a preparation method for ionic battery anode material based on waste asphalt, and successfully prepared a mesoporous carbon material with a high specific surface area, which overcomes the problem of low specific capacity of the existing graphite as the negative electrode of the ion battery, the preparation process is simple, the process time is short, and the "waste is treasure".
At the same time, the study also found that mesoporous carbon materials as electrodes can show excellent electrochemical properties in sodium-ion batteries, potassium-ion batteries and large-scale energy storage flow batteries.
The existing carbon-based materials of the anode of alkali metal ion batteries have problems such as lower specific capacity and rising cost of raw material sources. The electrode materials of flow batteries for large-scale energy storage also have problems such as low conductivity, low specific surface area and poor catalytic activity. The development of new electrode materials with low prices and high quality is particularly critical to promoting the commercialization process of electrochemical energy storage.
The resource utilization of waste asphalt in energy storage, through Professor Jia Chuankun's method, effectively solves the problems of environmental pollution and high recovery cost caused by waste asphalt, and only needs to be heat treated, which solves the problem of complex and low specific capacity of the existing graphite anode preparation process, which is suitable for large-scale industrialization. Once the technology is industrialized, it is expected to greatly reduce the cost of anode materials, and then promote the development of the new energy industry.
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