94
Betavolt's miniature battery could spell the end of smartphone chargers
(mobilesyrup.com)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 13 Jan 2024
94 points (71.4% liked)
Technology
59200 readers
2514 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
According to this article, an average smartphone uses 2W when in use. That number will largely be dependent on the screen and SOC, which can be turned off or be placed in a lower power state when the phone isn't actively being used. (The 5W - 20W figure is for charging a phone.)
With 8 of these cells, you'll have 800μW, or 0.0008W, and you need 2W. You will need to add a few more batteries... About 19,992 more. If 8 of these batteries are about the same size as a regular smartphone battery, you will need the equivalent of 2,500 smartphone batteries to power just one phone.
Too bad they don't say how much the new batteries weigh! It would have been fun to see...
If we ballpark it and assume something the size of a regular smartphone battery is 50g (1.7 oz), then our stack of 20,000 of these new batteries could be about 125kg (275 lbs).
I won't be replacing any of my batteries just yet.
Sure, you might have to wheel around a super heavy cart full of batteries …but think of the CONVENIENCE of not having to charge your phone!
Also, the thickness of the phone:
The power density is about 0.01125m³ per watt. A high end smartphone (snapdragon 8 gen 3 uses 11w of peak power) with a body size similar to Galaxy s23 ultra, would be almost 10 meters thick.