AlphaGo beating the top human player was in 2016. To my memory, that was one of the first public breakthroughs of the new era of machine learning.
Around 2010 when I was at university, a friend did their undergraduate thesis on neural networks. Among our cohort it was seen as a weird choice and a bit of a dead-end from the last AI winter.
I compare solid-state battery manufacturing, to extreme ultraviolet lithography.
I remember reading about attempts to commercialise EUV lithography in the early 2000s (in a paper magazine!) The same issues that SSB have now - some lucky examples from tiny yields in the lab, but the devil's own problem to scale it and develop reliable manufacturing.
ASML was able to commercialise it in 2018. I expect the timeline for SSB to be about the same, twenty years or so. I think we will see it but not until the 2030s.
Around 2010 when I was at university, a friend did their undergraduate thesis on neural networks. Among our cohort it was seen as a weird choice and a bit of a dead-end from the last AI winter.