Lithium-air batteries have great potential. Could eventually store 10 x the energy as Tesla's best at this stage of refinement.
One thing we've learned over past five years is just how long a road it is from good results in a lab to disruption of current Li batteries.
If a big name scientist unveiled a new/better way (like aluminum air), press would jump on the news.
This June 2016 article in Bloomberg Business Week is great. It cover's every aspect of metals needed for Li ion cells we've been discussing on forum. Highlights:
1. Macquarie Research predicts a global lithium shortage of 46,000 tons, equal to 16% of total demand by 2021.
2. Elon Musk has said that the main determinant of cell cost is the price of nickel in the form they need. Luckily, the price of
nickel has fallen more than 50% this year due to some producing countries boosting supplies. It appears the world has much reserve mining and processing capacity.
3. Tesla doesn't use much cobalt in its batteries, and JB has said they are trying to get rid of what they do use, by substituting nickel in its place.
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