This Cleantechnica article about research and development advancements on batteries using aluminum-ion and aluminum-sulfur chemistries. German Universities; Lyten company announcing opening a pilot battery factory for lithium-sulfur cells.
Quote: “”Aluminium is the most abundant metal in the Earth’s crust and its recycling is easy. Its high volumetric capacity of 8040 mA-h/cm−3 as a negative electrode material even exceeds that of lithium of 2046 mA-h/cm−3. In contrast to the latter, it can be reversibly stripped and deposited without forming dendrites, preventing short circuits. Favorably, the ionic liquid electrolytes currently used in Al batteries are non-flammable. Hence, rechargeable Al ion batteries (AIBs) hold great promise as storage devices.””
https://cleantechnica.com/2023/06/16/aluminum-ion-lithium-sulfur-battery-news/