Posted on 08/29/2024 6:01:33 PM PDT by aimhigh
Charging lithium-ion batteries at high currents just before they leave the factory is 30 times faster and increases battery lifespans by 50%, according to a study at the SLAC-Stanford Battery Center.
A lithium-ion battery’s very first charge is more momentous than it sounds. It determines how well and how long the battery will work from then on – in particular, how many cycles of charging and discharging it can handle before deteriorating.
In a study published today in Joule, researchers at the SLAC-Stanford Battery Center report that giving batteries this first charge at unusually high currents increased their average lifespan by 50% while decreasing the initial charging time from 10 hours to just 20 minutes.
(Excerpt) Read more at eurekalert.org ...
just shaking my head here...
The wonders and mysteries of materials science and chemistry. Yet they tell us God doesn’t exist.
Were these fire starting marvels subject to load testing before foisted on unsuspecting public?
If this is true, than it is a major game changer.
if not, well then any defective batteries will flame up during initial testing.
Win Win
Is charging at 440v even better?
I once spent a week in a class with a bunch of SLAC PhD’s.
I only have a BS in Computer Science and years of experience.
I had to the hit the ground running to keep up with those guys.(I got a B in that class)
If they made it work, it will work.
expensive high tech bonfire
Now with more molecules!
In this case, it sounds like you need a linear accelerator.
In this case, it sounds like you need a linear accelerator.
just shaking my head here...
________________________
I didn’t read how it was done. I suppose they crank up the amperes on the first charge while keeping the volts within the battery’s capacity.
Batteries last longer if you don’t use them very much. < sarc >
I would go with 880 just to be safe
I see advertisements on the web where a cell phone is charged in a few seconds - not sure what their rapid method actually is though
.
China just released a phone that charges at 330 watts in four minutes from zero to full. Given that the rest of the world uses 240V not 120V to the residential plug and 15 amps is the common rating. 3600 watts is in tap in the EU and China over ten times as much. If you could get a phone pack to take the full 3600 watts that’s like 26 seconds from zero.to.full if it was a 4 min charge at 330w.
Aluminium ion cells with graphene electrodes have demonstrated 66C charge rates. 66C rate out of 3600 seconds is 54 seconds from zero to full you would only need 1800 ish watts not 3600 so an American 120v 15 amp plug could get you there, not just AC to DC is 100% but still close.
You likely carry one of these firestarting marvels in your pocket right next to the ole babalones every day and don’t think twice about it. Every smartphone has a lithium ion cell powering it nearly all of them are nickle manganese cobalt cells at that the super flammable ones but to those cells having the highest energy density and phone companies always choose the highest energy density for maximum run time that consumers demand. But hey don’t let that little fact get in the way of a good ole fashion tissy. That tablet on the table and the laptop in the backpack also have Li-ion NMC cells too. Overcharge one or better yet leave it plugged in a hot car charging. The cognitive dissonance is staggering it’s all battery bad, battery bad but wait I want my smartphone to run for days off the charger while ranting on the internet and playing cat videos.
pretty cool
Yikes. Back to a kite on a string and Morse code.
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