What new batteries are about to be widely used?

Lithium-sulfur batteries have been used in the United States. SionPower took the lead in using lithium-sulfur batteries on an unmanned aerial vehicle, flying with lithium-sulfur batteries at night and charging with solar batteries during the day, flying continuously for 17 days. In Britain and Europe (because gentlemen are clamoring to leave Europe recently, let's talk about it separately), there are also companies that claim to start mass production of soft-package lithium-sulfur batteries, but the performance of the batteries (working voltage, power, power, etc.). ) There is no explanation, which is expected. Professor Cui Yi of Stanford University in the United States said in his speech at the Chinese Academy of Sciences that lithium-sulfur batteries should be used in ev, that is, electric vehicles, in 5- 10 years. A few days ago, I chatted with an awesome person from other places and said that lithium-sulfur batteries have been put into factory production in China. The specific situation and battery performance can only be said, please look forward to it. Lithium-air battery is still in the laboratory stage, after all, how to protect lithium from N2 reaction is also a difficult problem. Someone talked about vanadium batteries, and I know a thing or two. Vanadium battery has the advantages of low price, easy maintenance and easy availability of raw materials. But the disadvantage is still obvious. His theoretical discharge capacity is only equivalent to that of lead-acid batteries. . . Moreover, the discharge voltage is not high, only1.5v. To be honest, it is not optimistic, and the quality may be an advantage compared with lead batteries.