this post was submitted on 29 Dec 2023
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The first EV with a lithium-free sodium battery hits the road in January - Sodium-ion batteries have lower density but are cheaper and perform better in cold weather (www.engadget.com)
submitted 10 months ago by [email protected] to c/[email protected]
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The first EV with a lithium-free sodium battery hits the road in January - Sodium-ion batteries have lower density but are cheaper and perform better in cold weather::JAC Motors, a Volkswagen-backed Chinese automaker, unveiled the first mass-produced EV with a sodium-ion battery through its new Yiwei brand. Although sodium-ion battery tech has a lower density than lithium-ion, its lower costs, simpler and more abundant supplies and superior cold-weather performance could help accelerate mass EV adoption.

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[–] [email protected] 1 points 10 months ago* (last edited 10 months ago)

There are ways to calculate a batteries remaining life, usually you'd have a chip dedicated to tracking all of that. They can tell you a battery's history, health, estimated charge capacity etc. So if the station detects a batteries life is low or it's marked as chaged but it's charged significantly below it's initial capacity it can be taken out of rotation and inspected and fixed/disposed of if need be.

Personally I wonder, once we have interchangeable batteries, if it will be more common to have several smaller, shorter life span batteries that add up to a certain range. That way the recharge station only has to change out the batteries with a lower charge, and even if the battery system trips up and you get a borked battery your range would be slightly reduced not completely gone or halved