As history has shown w.r.t spam, the stuff eventually gets sorted out
I'm sure people could have come with similar criticism for li-ion batteries, before them took over
I'm sure people could have come with similar criticism for li-ion batteries, before them took over
[x] it lacks thermal stability at low or high temperatures.
[x] it is too likely to catch fire or explode.
Too many people think Li-ion is magic, when it just happens to occupy a particular niche of characteristics that let it get a good early jump in the race for portable power. Nothing about the chemistry involved mandates it remain in a position of primacy.
This particular alternative is useful in some very specific niches in which Li-ion will _never_ be competitive.