[philipkglass]

There can also be a very long lag between initial research and industrialization. PERC cell technology for high efficiency solar has been growing rapidly to multiple gigawatts of manufacturing capacity over the past couple of years. It's expected to account for over half of all monocrystalline cell manufacturing within the next few years.

10 years ago PERC cells weren't available on an industrial scale, even though the technological basics were discovered, explored at the lab scale, and published in the 1980s. It took a lot of manufacturing advances and market evolution before PERC technology was both practical and profitable to manufacture for large scale use.

http://www.aleo-solar.com/perc-cell-technology-explained/

Likewise, I expect that some battery ideas that are published and "go nowhere" will eventually reach industrial scale, but only much later.