Rechargeable aluminum batteries with aluminum metal as a negative electrode have attracted wide attention due to the aluminum abundance, its high theoretical capacity and stability under ambient conditions.
The thinnest samples are the less damaged after the electrochemical tests. Despite a huge loss in capacity due to volume changes in the electrode upon cycling, aluminum appears as a good material as a negative electrode for lithium ion batteries. 1. Introduction
Metal negative electrodes that alloy with lithium have high theoretical charge storage capacity and are ideal candidates for developing high-energy rechargeable batteries. However, such electrode materials show limited reversibility in Li-ion batteries with standard non-aqueous liquid electrolyte solutions.
Aluminum-based negative electrodes could enable high-energy-density batteries, but their charge storage performance is limited. Here, the authors show that dense aluminum electrodes with controlled microstructure exhibit long-term cycling stability in all-solid-state lithium-ion batteries.
These results demonstrate the possibility of improved all-solid-state batteries via metallurgical design of negative electrodes while simplifying manufacturing processes. Aluminum-based negative electrodes could enable high-energy-density batteries, but their charge storage performance is limited.
Aluminum batteries: Aluminum metal presents appealing properties as anode material for aluminum batteries. However, its initial surface properties are underappreciated. The performance of the device is greatly influenced by the purity, surface finishing and hardness of the aluminum metal.