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Scientists publish phosphorus-based composite materials as a negative electrode material for potassium ion batteries
[ Instrument Network Instrument Development ] Recently, Wu Zhongshuai, a researcher of the 2D Materials and Energy Devices Innovation Zone Research Institute of the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, and Yu Yan, a professor at the University of Science and Technology of China, published a book entitled "Phosphorus-Based Composites as Potassium Ions". A review article by The Promise and Challenge of Phosphorus-Based Composites as Anode Materials for Potassium-Ion Batteries.
Potassium-ion batteries (KIBs) are a core energy storage device with a similar energy storage mechanism as lithium-ion batteries, and their low cost and abundant metal potassium reserves are of strategic importance for large-scale energy storage in the future. The development of high performance electrode materials is a key factor in improving the performance of KIBs. Phosphorus-based materials, including phosphorus simple substances and various transition metal phosphides, have high theoretical capacity and low redox potential, and are a kind of high-performance cathode materials for high-performance potassium ion batteries, which have attracted much attention in recent years. Based on this, this work focuses on the research progress of the structural properties, synthesis methods and potassium storage mechanism of phosphorus-based anode materials, and reveals the relationship between the structure and electrochemical properties of phosphorus-based anode materials. At the same time, the paper reviews other key factors affecting the electrochemical performance of potassium-ion batteries, such as electrolytes and binders. The system summarizes the current modification strategies for improving the performance of phosphorus-based anodes. Finally, the paper also summarizes and summarizes the challenges and opportunities in designing high performance phosphorus-based anode materials, and proposes some feasible solutions and future development directions.
The above work was funded by the Chinese Academy of Sciences Clean Energy Innovation Research Institute cooperation project and the national key research and development plan, and was recently published in Advanced Materials.