SandAndAlum t1_j7t3rv3 wrote on February 9, 2023 at 5:11 AM

Reply to comment by ProtoplanetaryNebula in A new lithium-air battery design promises unprecedented energy density | A potentially transformative technology for electrifying transportation by chrisdh79

> None of these 50% gains that always get talked about ever come to anything, but over time it all adds up.

They often do, it just takes a decade, so it looks like another 5-8% improvement when it hits market.

ProtoplanetaryNebula t1_j7t4ijt wrote on February 9, 2023 at 5:18 AM

No, they are just small iterations actually. No one cell make that much of a big jump in one go. I follow battery news and youtube channels on the subject every single day.

SandAndAlum t1_j7t5fi8 wrote on February 9, 2023 at 5:28 AM

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.