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稀土高值化利用是提升我国稀土资源附加值的重要途径,开拓稀土离子在电化学储能材料中的应用是稀土高值化利用的具体方案之一。综述了稀土离子在电化学储能电极材料应用中的最新研究进展,证明了稀土离子能够有效提升电极材料的电化学性能,同时分析了稀土离子在电化学反应中的作用机制,探讨了稀土离子的利用形式以及高效提升电化学性能的方式。从稀土离子掺杂、稀土离子包覆电极材料入手,具体介绍了稀土离子在稳定电极材料结构、改善电极材料电子电导率、离子扩散特性等中的作用。稀土离子的电负性和离子尺寸是调节锂离子电池和超级电容器电极材料性能的主要设计依据。希望充分利用我国稀土资源优势,提升我国在稀土电化学储能领域中的研究地位和原始创新能力。
The use of rare earth high value is an important way to enhance the added value of rare earth resources in our country, and the application of rare earth ions in electrochemical energy storage materials is one of the specific solutions for high value utilization of rare earth. The recent progress in the application of rare earth ions in electrochemical energy storage electrode materials is reviewed. It is demonstrated that the rare earth ions can effectively improve the electrochemical performance of the electrode materials. At the same time, the mechanism of action of rare earth ions in the electrochemical reaction is analyzed. The effects of rare earth ions The use of forms and efficient ways to improve electrochemical performance. Starting from rare earth ion doping and rare earth ion-coated electrode materials, the role of rare earth ions in stabilizing the electrode material structure, improving the electronic conductivity and ionic diffusion properties of electrode materials is introduced. The electronegativity and ionic size of rare earth ions are the main design basis for adjusting the performance of the electrode materials of lithium ion batteries and supercapacitors. Hope to make full use of our advantages of rare earth resources, enhance our country in the field of rare earth electrochemical energy storage research and the status of the original innovation ability.