LiFePO4 was a huge jump in cycle count, charge rate and cobalt usage but charge rate wasn't even state of the art once commercial. Lithium was a huge jump in density. Hard carbon anodes were a huge jump when first investigated, but small hop once commercialised. Various low nickel and low cobalt cathode improvements were 20-40% better than status quo when discovered. Some Zinc based chemistries are a huge jump from what was normal when discovered, but are niche now.

The techniques and knowledge also apply to other things.