134
this post was submitted on 29 May 2024
134 points (82.8% liked)
Technology
59674 readers
3223 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- 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, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Some minor changes here and there, but the underlying makeup of the batteries and their shortcomings have been largely the same. Lithium and issues with dendrites that cause them to go bad/lose capacity after around 2,500 complete charge cycles. Most of the improvements have consisted of pulse charging different cells at a time in large batteries and trying to always keep the batteries in the 30% to 80% capacity range to extend the lifespan. Batteries last longer if you put one big enough in a vehicle to go 400 miles, but only allow for a 200 mile range.
5-8% per year is a doubling every 9-15 years. This is not a small change. That means we've doubled at least once since the first Tesla Roadster.
We haven't doubled at all over the past 15 years, though. That's completely false. Not in capacity or cycles.
They have doubled in capacity: https://rockymntstage.wpengine.com/wp-content/uploads/2024/01/slide-2-battery-charts.png