Medina Alejandro, Pérez-Vicente Carlos, Alcántara Ricardo
Department of Inorganic Chemistry, Instituto Universitario de Investigación en Química Fina y Nanoquímica (IUNAN), Faculty of Sciences, Campus de Rabanales, University of Córdoba, Edificio Marie Curie, 14071 Córdoba, Spain.
Materials (Basel). 2021 Dec 6;14(23):7488. doi: 10.3390/ma14237488.
A post-lithium battery era is envisaged, and it is urgent to find new and sustainable systems for energy storage. Multivalent metals, such as magnesium, are very promising to replace lithium, but the low mobility of magnesium ion and the lack of suitable electrolytes are serious concerns. This review mainly discusses the advantages and shortcomings of the new rechargeable magnesium batteries, the future directions and the possibility of using solid electrolytes. Special emphasis is put on the diversity of structures, and on the theoretical calculations about voltage and structures. A critical issue is to select the combination of the positive and negative electrode materials to achieve an optimum battery voltage. The theoretical calculations of the structure, intercalation voltage and diffusion path can be very useful for evaluating the materials and for comparison with the experimental results of the magnesium batteries which are not hassle-free.
人们设想了一个后锂电池时代，寻找新的可持续储能系统迫在眉睫。多价金属，如镁，在取代锂方面很有前景，但镁离子迁移率低和缺乏合适的电解质是严重问题。本综述主要讨论了新型可充电镁电池的优缺点、未来方向以及使用固体电解质的可能性。特别强调了结构的多样性以及关于电压和结构的理论计算。一个关键问题是选择正负极材料的组合以实现最佳电池电压。结构、嵌入电压和扩散路径的理论计算对于评估材料以及与并非一帆风顺的镁电池实验结果进行比较非常有用。
