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I'm curious. Are they in the market in large enough volumes yet? I've been waiting for ages for something better than Li-Ion and LiPo tech to become widely avai
by goku12 6mo ago
I'm curious. Are they in the market in large enough volumes yet? I've been waiting for ages for something better than Li-Ion and LiPo tech to become widely available. We need much higher energy densities, and preferably without the fire hazard.
- AndrewDucker 6mo agoLithium-Ion density has basically doubled over the last decade. And the cost has dropped by 2/3. See figure 2 here: https://rmi.org/the-rise-of-batteries-in-six-charts-and-not-too-many-numbers/ https://rmi.org/the-rise-of-batteries-in-six-charts-and-not-... and the data here: https://elements.visualcapitalist.com/charted-lithium-ion-batteries-keep-getting-cheaper/ https://elements.visualcapitalist.com/charted-lithium-ion-ba... (Both of these are a couple of years old. I'm sure there's newer data out there that looks even beter.) Newer batteries chemistries are slowly arriving, but they mostly aren't replacing Li-ion because Li-ion is getting better all the time. Except in specific circumstances. Like the Sodium-Ion ones that work far better at low temperatures and entered mass production two months ago: https://carnewschina.com/2026/01/22/catl-unveils-worlds-first-mass-production-sodium-ion-battery-for-commercial-vehicles/ https://carnewschina.com/2026/01/22/catl-unveils-worlds-firs...