These challenges encompass the intricate Al 3+ intercalation process and the problem of anode corrosion, particularly in aqueous electrolytes. This review aims to explore various aluminum battery technologies, with a primary focus on Al-ion and Al‑sulfur batteries.
But without question, there are some downsides that hinder their wide-scale commercial applications. Flow batteries exhibit superior discharge capability compared to traditional batteries, as they can be almost fully discharged without causing damage to the battery or reducing its lifespan.
The commercialization of Al-air batteries is limited by the severe corrosion of aluminum alloys in alkaline electrolytes. Additionally, the poor solubility of the Al(OH)4-leads to clogging of the cathode . Additionally, Al-air cells are non-rechargeable batteries, which is a clear disadvantage.
One unique advantage of Al S batteries, compared to aluminum-air (Al-air) batteries, is their closed thermodynamic system. Additionally, Al S batteries have a notable edge over AIBs because the cathode material in Al S batteries doesn't rely on intercalation redox processes.
Unlike some other types of batteries, flow batteries don't contain flammable electrolytes, which reduces the risk of fire or explosion. The design of flow battery storage systems allows for the storage tanks to be installed separately from the conducting cell membrane and power stack, further enhancing safety.
4. Aluminum-air batteries have a distinct advantage in their ability to operate efficiently in aqueous environments, primarily due to their wide operating voltage range. However, this beneficial voltage range is typically achieved when using alkaline electrolytes.