A lot of these at least sound plausible, but you also get delightfully bizarre ones like this ABC article. (Charging an iPhone battery in under a second, no matter how the battery works, would require a current of around 10,000 amperes at 5 volts.)
And this “discovery”, too, has been around for many decades now:
“The storage battery is, in my opinion, a catchpenny, a sensation, a mechanism for swindling the public by stock companies. The storage battery is one of those peculiar things which appeals to the imagination, and no more perfect thing could be desired by stock swindlers than that very selfsame thing. … Just as soon as a man gets working on the secondary [rechargeable] battery it brings out his latent capacity for lying.”—Thomas Edison, 1883 (http://www.its.caltech.edu/~matsci/btf/EdisonText.html)
From the mailing list, also from 2018-07-23:
Batteries, and the concept of perennial discoveries itself