This article is a bit odd. It does mention the "B" vacuum tube batteries you linked in that Wikipedia page, but B-size batteries are not the same thing. The article kinda mentions this ("voltage range of 45 to 90" vs 1.5v) but overall just conflates the two.
Yeah I was wondering if it might be LLM generated, it just seems so pointless though. Additionally while the date could obviously be fake, June 2022 is before ChatGPT came out.
https://en.m.wikipedia.org/wiki/Vacuum_tube_battery