Abstract

Compared with lithium-ion batteries, magnesium ion batteries can theoretically provide more electrons, have a larger theoretical specific capacity, and are abundant in magnesium compared to increasingly scarce lithium resources, which can effectively reduce the production cost of batteries. Therefore, the research of cathode material for magnesium ion battery has important scientific significance and practical value. However, there are still some problems hindering the commercial development of magnesium ion batteries. Due to the high charge density, strong polarization effect and slow diffusion kinetics of Mg²⁺, it is still a great challenge to develop positive electrode materials that meet current commercial requirements. This paper mainly reviews the development status and future development trend of magnesium ion battery in recent years, as well as the working principle and characteristics of magnesium ion battery, and puts forward the related application of magnesium ion material in anode and cathode of battery. Compared with lithium ion battery, magnesium ion material has obvious performance advantages, which is an important topic for the development of electrode material in the future.

摘要

与锂离子电池相比，镁离子电池理论上可以提供更多的电子，理论比容量更大，与日益稀缺的锂资源相比，镁含量丰富，可以有效降低电池的生产成本。因此，镁离子电池正极材料的研究具有重要的科学意义和实用价值。但是，目前镁离子电池的商业化发展还存在一些问题。由于 Mg ^{2+的高电荷密度、强极化效应和缓慢的扩散动力学}，开发满足当前商业需求的正极材料仍然是一个很大的挑战。本文主要回顾了近年来镁离子电池的发展现状和未来发展趋势，以及镁离子电池的工作原理和特点，提出了镁离子材料在电池正负极方面的相关应用。与锂离子电池相比，镁离子材料具有明显的性能优势，是未来电极材料发展的重要课题。