Quote:
Originally Posted by john70t
Say Hello to the Future of Technology - Imgur
" It’s one atom thick and has phenomenal electron mobility – roughly 100 times greater than silicon.
This is because the graphene-based supercapacitor charges 100,000 times faster than regular batteries.
Unlike the average battery, which is made of lithium, a graphene-based supercapacitor can be charged and recharged one million times.
graphene is completely BIODEGRADABLE and safe for the environment because it is carbon based"
|
That performance sort of makes sense based just on the length scales involved. Atom-scale things happen WAY faster than mm-scale things. Sure, it charges fast and has high power density but it's still so darn small (thin, low volume). It'll be world-changing if they can scale it up to a useful size.
Weren't we promised some "super batteries" one of these days just a few years ago? Traditional lead-acid chemistry but scaled down so that there were many more thin electrolyte layers to provide fast charging and high power density? (note that that's a similar strategy to the graphene above - shorten the length scale and things get better)
Anyway, materials science is cool - and is our ticket out of many of today's problems!