ProtoplanetaryNebula t1_j7rjcq0 wrote
Reply to comment by itsgoingtobeebanned in A new lithium-air battery design promises unprecedented energy density | A potentially transformative technology for electrifying transportation by chrisdh79
Battery density improves around 5-8% per year, so the gains are small but steady. None of these 50% gains that always get talked about ever come to anything, but over time it all adds up.
SandAndAlum t1_j7t3rv3 wrote
> 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
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
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.
ale_93113 t1_j7sh6t7 wrote
Same with cancer, a new cure is always on the way
It never materialises
Yet the mortality rate goes gradually down
Nows_a_good_time t1_j7tg9xg wrote
We havent gotten any of these talked about chemistry changes though. Just steady improvements on existing Li-ion or LiPo
ProtoplanetaryNebula t1_j7vd36o wrote
That was my point.
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