Warning this is a long story as to why I am overly passionate about this stuff....
About a decade ago I was woking on a project to run a network of instruments in the Arctic that needed to run over the polar night, powered by batteries charged by wind and solar. We of course looked at all the available batteries to power these, and during that research noticed 'Lead Crystal' batteries which looked super promising. We did a bunch of digging into these and discovered much of what I have been talking about here, made in China etc. We wanted to order ~100 batteries so we contacted the vendor with some questions and asked for some details - they were unable to answer relatively basic questions and unable to provide much of any actual test data. We quickly realized there was something amiss, and moved on.
Jump forward 10 years, I have a small RV with a DIY battery and I am a lurker on this forum, reading occasionally. About a year ago I notice the talk about these new 'SiO2' batteries that sound really good. I am surprised I have not heard of them, so I do some research, quickly realize these are the same old 'Lead Crystal' as before with a new name and new marketing. I say oh well, and move on. But then I notice they are being pushed really hard on the forum, and the narrative is moving from should I choose between FLA, AGM or LiFePO4, to should I choose between LiFePO4 or 'SiO2'. People actually start buying these things, and there is a bunch of marketing mumbo-jumbo being passed of as fact without much fundamental knowledge if energy storage or how these work. This is what motivated me to sign up and try and point out the massive holes in all these claims.
Sorry for the rant.