Researchers develop lithium-sulfur battery that can be cut, folded - Energy Storage (www.ess-news.com)
from schizoidman@lemm.ee to technology@lemmy.world on 19 Sep 23:52
https://lemm.ee/post/42738522

cross-posted from: lemm.ee/post/42738519

#technology

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apt8@sh.itjust.works on 20 Sep 00:03 next collapse

Big if true

calabast@lemm.ee on 20 Sep 00:07 next collapse

I really like the safety aspect of this, but 72% capacity after 300 cycles seems low. What’s a use case scenario where this is preferable over lipo batteries?

TerkErJerbs@lemm.ee on 20 Sep 00:11 next collapse

Boats, planes, drones, phones, bikes… Anywhere that you can maximize storage cell capacity in odd shaped volumes and spaces/designs. It’s great.

ThePantser@lemmy.world on 20 Sep 00:16 collapse

Dildos

TerkErJerbs@lemm.ee on 20 Sep 00:39 next collapse

👆

veeesix@lemmy.ca on 20 Sep 01:07 collapse

Why do you think they’re called D batteries? 😏

Ilovethebomb@lemm.ee on 20 Sep 00:12 next collapse

Much more stable chemistry. In stationary applications, like UPS systems and off grid electrical systems, lead acid is still the standard, due to having stable chemistry, very unlikely to catch fire, and a cost to capacity ratio that is still very good.

The degradation seems pretty bad, but if it’s stable from 300 cycles onwards, you could take 75% as the actual capacity of the battery.

orrk@lemmy.world on 20 Sep 01:41 collapse

Having looked at comparative data, it’s not really out of the norm…

graycube@lemmy.world on 20 Sep 01:34 next collapse

I bet if you cut it vertically the lights will go out.

orrk@lemmy.world on 20 Sep 01:37 next collapse

it is so interesting to learn just how far behind articles like this are

peopleproblems@lemmy.world on 20 Sep 04:30 next collapse

But, do they cause a runaway thermal reaction if pierced?

I demand spicy pillows, not mild ones

nous@programming.dev on 20 Sep 09:24 collapse

One of the fabricated battery pouch cells was even able to work after being folded and cut off. “That proves its high safety for practical application,” the researchers emphasized.

If you can cut it in half and it still works I doubt piercing it will do much.

peopleproblems@lemmy.world on 20 Sep 14:38 collapse

Oh, oh god. I know exactly how I reasoned that.

Slashing damage is different than piercing damage in the games I play. For whatever reason I ignored the context.

robotica@lemmy.world on 21 Sep 06:03 collapse

RPG ahh battery

0x0@programming.dev on 20 Sep 09:35 next collapse

After 300 cycles, a lithium carbide iron disulfide pouch cell retained 72.0% capacity

Put that on a phone and the battery will degrade almost 30% in one year… seems a lot tbh.

scarabic@lemmy.world on 20 Sep 16:24 next collapse

As a point of reference, Google says that somewhere between 500-2000 cycles you can expect a regular lithium battery to degrade to 80%. So this is worse, but in the ballpark. Seems reasonable for a research prototype to be a little worse than a commercial product that’s had years to become highly optimized.

OmgItBurns@discuss.online on 20 Sep 17:00 collapse

But depending on cost, in my hopeful optimistic universe, that could mean bringing back replaceable batteries.

rottingleaf@lemmy.world on 21 Sep 08:01 next collapse

But does it make a boom when Mossad needs it?

[deleted] on 21 Sep 08:13 collapse

.