My suggestion would be the round receptacle designed as a temporary storage system for useless stuff. The nonsense about how much water it takes to refine lithium, the dangerous processes and the health effects on those working in the industry is all part of the last ditch efforts of the petroleum industry to hold on to what they have at the moment. we heard the same sort of B/S about solar panels and wind turbines, the fact cobalt is rapidly being phased out of battery manufacture seems to be missed by these people, so does the modern methods of refining lithium ore to the end product.
As for how much weight of material is required to make a certain amount of lithium, surely anyone can see just what level of nonsense that is, every type of material refined from a raw product relies on just how concentrated the required product is in that ore seam. The fact lithium is being extracted from dumped waste product left over from other ore extraction processes is ignored along with the huge improvement in just how lithium is extracted and refined.
The fact a lot of arsenic is released while gold is refined seems to not be an issue for those that love to wear the stuff as some sort of status symbol or as a decoration doesn't seem to affect the desirability of the end product and its price on the market reflects this, so if lithium in a battery is a bad thing, then gold must be as well .......
T1 Terry