this post was submitted on 24 Apr 2025
427 points (93.5% liked)

Technology

69343 readers
6073 users here now

This is a most excellent place for technology news and articles.

Our Rules

  1. Follow the lemmy.world rules.
  2. Only tech related news or articles.
  3. Be excellent to each other!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. 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.
  9. Check for duplicates before posting, duplicates may be removed
  10. Accounts 7 days and younger will have their posts automatically removed.

Approved Bots

founded 2 years ago
MODERATORS
L3s@lemmy.world
enu@lemmy.world
technopagan@lemmy.world
L4s@lemmy.world
L3s@hackingne.ws
L4s@hackingne.ws
427
Applying 'extreme heat' to lithium-ion batteries reportedly restores their capacity, and I think it's the sustainable tech breakthrough of 2025 (www.techradar.com)
submitted 2 days ago by floofloof@lemmy.ca to c/technology@lemmy.world
109 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[โ€“] xep@fedia.io 21 points 2 days ago (1 children)

How does heat mitigate the dendrites? Also doesn't extreme heat damage the batteries? They barely hold up under high temperatures as-is.

[โ€“] Thetimefarm@lemm.ee 1 points 2 days ago

I think it has to do with whether or not the battery has a current going through it while hot. I imagine heat probably makes the lithium more soluable in the electrolyte liquid, then the disolved material migrates with the current flow. Heating it without a current flow might allow it to redissolve and at least distribute it more evenly so it doesn't make one long spike that shorts the battery.