Ultimately takeup of EV vehicles is around price, and component input costs of the component parts - obviously economies of scale and large sclae production in itself also reduces unit costs of EV per se, as occurred when the Model T Ford was built all those years ago.
We did deal,in part, with this a little while ago around input costs,makeup of batteries etc as their are different types, and different battery makeupost #: 30326381
Within the embedded post is this link which says:
The Tesla Model S, with its 70kWh lithium-ion battery, uses 63kg of LCE (12kg of Li) - 14% percent by weight, or 10,000 times that of a cell phone
For every 1% of electric vehicle penetration of the global passenger car market, add 50-70,000t of LCE demand, or around 30% of the total current lithium market
Various iterations of the lithium-ion battery have been produced or are in development, but lithium, due to its unique properties, is integral to each battery design. Lithium-based batteries are able to store as much as three times more energy than other materials, have no memory effect, and have a high energy to weight ratio, giving it a competitive advantage, and making it the key ingredient for rechargeable batteries.
EV vehicles require a lot of different commodities as well. For example an EV vehicle requires 4 times as much copper as a combustion engine vehicle - see https://hotcopper.com.au/resources/...g-point-for-electric-cars.86220/#.Wf2UCogRUcB. Now you don't need a lot of copper in a combustion engine vehicle btw but 4 times as much means 4 times as much in an EV vehicle meaning you need more copper. Ditto, relating to cobalt and lithium - how much you need in a battery is irrelevant when we are saying EV vehicles need batteries and therefore we need lithium.
This post is probably more relevant in a general lithium forum so posted for information only.