Futurology

2422 readers

194 users here now

founded 2 years ago

MODERATORS

Graphene is FINALLY Here - Energy Game-changer? (youtube.com)

submitted 5 days ago by sabreW4K3@lazysoci.al to c/futurology

3 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] sabreW4K3@lazysoci.al 2 points 5 days ago (1 children)

I'm thinking it's about size. But these graphene advancements have the potential to change everything

permalink
fedilink
source
parent
hideshow 2 child comments

[–] SlopppyEngineer@lemmy.world 2 points 4 days ago

Yes, size is the big issue. And that's linked to power density. In the video they say normal battery has 200-400 Wh/kg and these superscapacitors get 7-11 Wh/kg.

That means your phone that lasts a day with the same size in superscapacitors now only lasts an hour. Or the range of an EV goes from 500 miles to 20 miles.

permalink
fedilink
source
parent