batteries

https://en.wikipedia.org/wiki/Aluminium_battery

Aluminium batteries or aluminum batteries are commonly known as aluminium-air batteries or Al-air batteries, since they produce electricity from the reaction of oxygen in the air with aluminium. They have one of the highest energy densities of all batteries, but they are not widely used because of previous problems with cost, shelf-life, start-up time and byproduct removal, which have restricted their use to mainly military applications. An electric vehicle with aluminium batteries could have potentially ten to fifteen times the range of lead-acid batteries with a far smaller total weight[1].



https://exo.net/~pauld/activities/AlA...irbattery.html

https://en.wikipedia.org/wiki/Activated_carbon

The word activated in the name is sometimes substituted by active.

Due to its high degree of microporosity, just one gram of activated carbon has a surface area in excess of 500 m² (or about 2 tennis courts),

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The French company Métalectrique (www.metalectrique.com) demonstrated at the "European Research and Innovation Exhibition", Paris, June 2007, an aluminium can battery and have since made a 6-pack "trash power" battery for the 3rd world, where electricity is scarce but discarded aluminium is often plentiful. [3]
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https://www.google.com/search?client=...UTF-8&oe=UTF-8

https://www.europositron.com/en/background.html

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