Reply To: Sea Salt Battery has 4 times the capacity of lithium Some interesting news I read today, seems the new sea-salt battery has 4 times the capacity of lithium, which could be amazing and removes the reliability on lithium mining “brine…

[UK Sentinel]

I also noticed on my news feeds that another technology, ‘aluminium-ion battery (GAIB) technology’ is making headline news for use with electric vehicle technology by offering a far superior product compared with lithium-ion.

Aluminium-ion batteries are a class of rechargeable battery in which aluminium ions serve as charge carriers. Aluminium can exchange three electrons per ion. This means that insertion of one Al3+ is equivalent to three Li+ ions. Thus, since the ionic radii of Al3+ (0.54 Å) and Li+ (0.76 Å) are similar, significantly higher numbers of electrons and Al3+ ions can be accepted by cathodes with little damage. Al has 50 times (23.5 megawatt-hours m-3) the energy density of Li and is even higher than coal.

Rechargeable aluminium-based batteries offer the possibilities of low cost and low flammability, together with high capacity. Aluminum’s inertness and ease of handling in an ambient environment potentially offer significant safety improvements. Hence, aluminum-batteries have the potential to be smaller in size. Al-ion batteries may also have more charge-discharge cycles. Thus, Al-ion batteries have the potential to replace Li-ion batteries.

https://en.wikipedia.org/wiki/Aluminium-ion_battery

In a completely sane world, madness is the only freedom (J.G.Ballard).

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