219
China's new iron battery hits 99.4 percent efficiency over 6000 cycles
(interestingengineering.com)
this post was submitted on 29 Apr 2026
219 points (95.1% liked)
Technology
84597 readers
3861 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related news or articles.
- Be excellent to each other!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, this includes using AI responses and summaries. To ask if your bot can be added please contact a mod.
- Check for duplicates before posting, duplicates may be removed
- Accounts 7 days and younger will have their posts automatically removed.
Approved Bots
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Just make hot swapping batteries normal again like it used to be.
There actually was a Chinese EV startup that had battery swap stations: drive up onto the system, and the battery is directly under your car; the swap takes <1 minute. I don't remember what it was called, though, nor if it ever made it.
Tom Scott did a video on it. In all honesty, there are a number of things about this system that I just don’t see working well in the long term, but it’s an interesting prototype nonetheless.
https://youtu.be/hNZy603as5w
That's it: Nio! Yeah, I dislike the reliability on the company, too.
Tesla did that as well about 10 years ago. They opted to not do it anymore if I recall correctly because they couldn’t control how the batteries were being maintained or what age of battery you would get.
There was one like that in Taiwan for scooters.
When was hot-swapping batteries normal? What was the backup power source? I'd only ever seen normally swappable batteries where the phone would need to power off and back on.
I’ve never owned a flip phone that I couldn’t plug in and swap the battery with a new one without it turning off. If that wasn’t normal with your phones I’m not sure why, maybe different circuitry?
Regardless making devices easy to repair, and thus open and maintainable was what I was getting at.
Somehow, I forgot about charging cables.
Somehow, charging cables returned
...in POG form!
Gogoro a moped/scooter company in Taiwan has these. Little stations all over the country where you can swap your battery out, it was pretty amazing.
In your ideal scenario would you own multiple batteries and keep them at your house, or are you looking for a subscription service where you would just buy the car (batteryless?) and then go to a rental station to have one put in, swapping batteries when they need a charge?