Thread for new battery breakthrough PR releases

I've had good luck with "Just Have a Think".

With "Undecided", its a useful start to some research, but it is not reliable information. I look at it as infotainment which is one level above clickbait, but not quite as useful as wikipedia...
 
This is interesting, not a "battery" but can store and release energy with amazing energy density:

Twisted carbon nanotubes store 3 times more energy than lithium batteries

The researchers found that their twisted carbon nanotubes could hold 15,000 times more energy than steel springs per unit mass. The researchers successfully demonstrated an energy storage density three times higher than the standard lithium-ion battery. Unlike the variable performance that lithium-ion batteries deliver under different operating temperatures, the twisted carbon nanotubes demonstrated consistency in energy storage through a wide temperature range of -76 Fahrenheit (-60 degrees Celsius) to 212 °F (100 °C).
Click to expand...

It's like a high-tech version of a rubber band airplane. While we probably won't see spring powered bikes anytime soon, it may be good for applications where you want a very tiny power source.
 
Hillhater said:
Ok !. So it's been a few years since thes Li-S cells first started production, and with apparently huge improvement potential to over 600-1000 Whr/ kg. And reported very low costs (<<$100/kWhr ?)
So where are they ??
Click to expand...

BTW - This quote from @Hillhater was from 2015.....

www.pcmag.com

Lithium-Sulfur Batteries to Power Combat Drones: Are EVs and Phones Next?

You may not have heard of this next-gen formula from Lyten, but it's primed to show up in military drones and, eventually, help your devices charge quickly and stay powered up longer.
www.pcmag.com www.pcmag.com
 
fechter said:
This is interesting, not a "battery" but can store and release energy with amazing energy density:

Twisted carbon nanotubes store 3 times more energy than lithium batteries



It's like a high-tech version of a rubber band airplane. While we probably won't see spring powered bikes anytime soon, it may be good for applications where you want a very tiny power source.
Click to expand...
Here's the actual paper in question that discusses its implementation:
www.nature.com

Giant nanomechanical energy storage capacity in twisted single-walled carbon nanotube ropes - Nature Nanotechnology

A single-walled carbon nanotube spring stores three times more mechanical energy than a lithium-ion battery, while offering wide temperature stability and posing no explosion risk.
www.nature.com www.nature.com

It reminds me of carbon flywheels having insanely high energy density because you can rotate them extremely quickly and not fly apart.
 
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