Wow, that’s great! I can’t wait to read about it for the next decade and never see an actual product using it.<p>Seriously though, battery science must be as hard as they say. Every six months I read about some promising new development... that never, ever filters down to consumers.
>The result of this is a flexible, stretchable battery with an areal capacity of 50 milliamps per square centimeter, which the team says is 10 to 20 times greater than that of a typical lithium-ion battery. All up, the team says the device can provide five to 10 times more <i>power</i> than a typical lithium-ion battery of the same size.<p>Inaccurate title: the Zn/AgO battery has up to ten times the spatial <i>power</i> density of lithium-ion, which is useful but hardly new, being exceeded by most supercapacitors. It does not, however, have ten times the <i>energy</i> density, which is a much more difficult bar to reach.<p>It probably has a good energy density, as do all silver-zinc batteries, but there's no indication here that the energy density is dramatically higher than when these batteries were used on the Apollo missions in the '60s. They're just flexible now (which is nice).
> tretchable battery with an areal capacity of 50 milliamps per square centimeter, which the team says is 10 to 20 times greater than that of a typical lithium-ion battery.<p>50 milliamps is not "10 to 20 times" "greater," but somewhat less than what single sheet lithium provides...
3.7V/50mAh in 1cm^2(1/2.54 insq or half a dime) is between an LR/SR41(1.5V/25mAh) to LR44(120mAh).<p>Sounds handy for rechargeable smart rings, eyewears, pens, cards, clothes, where volume and surface areas are enough, but rigidity is questionable, and cannot accommodate round/thick coin cells.
This is great. Assuming it is environmentally on par with standard Li-Ion batteries, it would have great applications in many fields.<p><pre><code> - Medical Devices
- Wearables
- Foldable Phones
- Roll out Phone screens
</code></pre>
and what not.