Hi Rod, Understand what your saying about lithium batteries in...

Hi Rod,

Understand what your saying about lithium batteries in its current state. But there are still things to explore that can make it more energy dense covered by the article at the end...
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Argonne’s Srinivasan bets some form of lithium-metal battery will be the next step. That’s based on the advances researchers have made in reducing “dendrites,” which can form in batteries over the course of many charge and discharge cycles. They can cause short circuits, which in turn can lead to fires. “The last five years have seen tremendous progress,” Srinivasan says. “Five years ago I wasn’t optimistic, but now I’m very optimistic that lithium-metal could work.”

Once that problem is solved, he says, it could open the door for more materials, including sulfur or oxygen. This latter is the potential solution being chased most aggressively by Viswanathan and his colleagues at Carnegie Mellon, who are pursuing a lithium-oxygen battery that could prove perfect for aviation.
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So I think the article you refer to is actually more positive than negative for lithium in the future.