Comments by "roidroid" (@roidroid) on "Exploring the 1000 Mile Car Battery - Aluminum Air Hype?" video.

6:56 "of the same weight" But because aluminium is so light weight, that equivalent weight battery would be GIGANTIC in the space it takes up. It's like the "1 ton of feathers vs 1 ton of rocks" question, 1 ton of feathers takes up a LOT of room! The more realistic scenario would be a car with an aluminium battery of the same energy capacity as lith-ion, and probably taking up the same sized space (coz easy swapability will increase the size), but simply lighter weight. If this ever becomes a thing it'll be a bolt-on "500 km range extender" for your normal rechargable lith-ion electric car, that you return once it's used up. It's sort of like a 1-time use "jerry can" you'd use for trips out to the middle of the Australian outback.
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@seneca983 Surprisingly Lithium is only a small part of a lithium-ion battery, approx 2% by volume. The batteries are mostly made of Nickel & Graphite.
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