 The development of a rechargeable magnesium battery has been a long, standing challenge due to the lack of suitable materials and slow reaction kinetics. Recent advances in material science and electrochemistry have led to the discovery of novel materials and techniques that could potentially lead to the realization of a practical rechargeable magnesium battery. However, there remain many unanswered questions regarding the interaction between the various components of the battery and the underlying mechanisms behind their performance. Further research is needed to fully understand these interactions and to identify the best strategies for overcoming the remaining challenges. This article was authored by Rana Motati and Fumonori Mizuno.