mollwollfumble said:
Spiny Norman said:
The claims are rather lofty, I hop they’re close to what’s mentioned.
Developer Of Aluminum-Ion Battery Claims It Charges 60 Times Faster Than Lithium-Ion, Offering EV Range Breakthrough.
The graphene aluminum-ion battery cells from the Brisbane-based Graphene Manufacturing Group (GMG) are claimed to charge up to 60 times faster than the best lithium-ion cells and hold three time the energy of the best aluminum-based cells.
They are also safer, with no upper Ampere limit to cause spontaneous overheating, more sustainable and easier to recycle, thanks to their stable base materials. Testing also shows the coin-cell validation batteries also last three times longer than lithium-ion versions.
GMG plans to bring graphene aluminum-ion coin cells to market late this year or early next year, with automotive pouch cells planned to roll out in early 2024.
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Knee jerk reaction. A supercapacitor will charge even faster.
Holding 3 times the energy and discharging 60 times as fast could mean that it only holds one twentieth (3 / 60) of the power of a lithium ion battery. Possibly.
https://en.wikipedia.org/wiki/Aluminium-ion_battery
“Rechargeable aluminium-based batteries offer the possibilities of low cost and low flammability, together with three-electron-redox properties leading to high capacity…….
This again means that the energy stored in aluminum-batteries on a per volume basis is higher than that in other metal-based batteries……… ………Hence, aluminum-batteries are expected to be smaller in size. Al-ion batteries also have a higher number of charge-discharge cycles. Thus, Al-ion batteries have the potential to replace Li-ion batteries………
…….Aluminium-ion batteries are conceptually similar to lithium-ion batteries, but possess an aluminum anode instead of a lithium anode. While the theoretical voltage for aluminium-ion batteries is lower than lithium-ion batteries, 2.65 V and 4 V respectively, the theoretical energy density potential for aluminium-ion batteries is 1060 Wh/kg in comparison to lithium-ion’s 406 Wh/kg limit….”