Aqueous rechargeable aluminum-ion batteries promise a safe, sustainable and affordable energy storage solution. In the aqueous system, water plays a critical role in enabling high fire safety and fast ion transport to store the intermittent renewables. However, the water could also easily react with the electrodes, leading to various parasitic side reactions and, ultimately, catastrophic failure of the cell. This review summarizes and evaluates the recent electrolyte engineering and electrode modifications strategies that hold the key to enabling the long cycle life of aluminum-based anodes in the aqueous energy storage system. More information can be found in the Review by Madhavi Srinivasan et al.