lime

joined 2 years ago
[–] lime@feddit.nu 7 points 4 days ago

let's make them enjoy it less

[–] lime@feddit.nu 9 points 1 week ago (1 children)

maybe because it's not true, at least if what the ex-head writer said on bsky is to be believed.

[–] lime@feddit.nu 36 points 1 week ago* (last edited 1 week ago) (3 children)

serious answer: they don't know how to prompt. not that knowing how to prompt makes it look better, but it can at least make it look different. like how google used to give you more specific results if you formulated the query in a certain way.

[–] lime@feddit.nu 3 points 1 week ago

yeah the swedish name for carbonated drinks is literally kolsyrad, "carbonic acid-ed".

[–] lime@feddit.nu 14 points 1 week ago (3 children)

the more co2 we put in the atmosphere, the more carbonated the oceans will become

[–] lime@feddit.nu 28 points 1 week ago (1 children)

door bells here are just literal bells mounted to the door. modern problems require modern solutions.

[–] lime@feddit.nu 4 points 1 week ago

i think the big issue is asymmetry. they charge at 3C, but they discharge at 8C. so you need the significantly overbuild.

[–] lime@feddit.nu 1 points 1 week ago (1 children)

one is energy density, the other is power density.

[–] lime@feddit.nu 3 points 1 week ago

i think bmw was working on something like that.

[–] lime@feddit.nu 4 points 1 week ago (3 children)

from other comments it seems the energy density of batteries currently on the market is about 2/3rds that of lithium cells.

there's also the asymmetry to worry about: with a max discharge rate of 8C but a charge rate of 3C there could potentially be limits on regen braking. if i'm understanding it correctly, sodium cells degrade quickly at higher charge rates.

[–] lime@feddit.nu 41 points 1 week ago (12 children)

idk about that, the regularly cited reason Na-ion batteries are mainly being looked at for grid storage rather than vehicle applications is their bad Wh/l and W/kg numbers compared to Li-ion. the table in the Na-ion article seems to use "1000W/kg" without a source, and it shows lithium as being about a third of that even though the Li-ion article quotes figures up to 10kW/kg.

seems the editors of the two articles aren't cross-checking eachother.

[–] lime@feddit.nu 7 points 1 week ago (18 children)

according to their product page, the charge rate for a single cell seems to max out at 3C, which could be a pretty big obstacle to grid-scale deployment. unless that's a problem that can be fixed with a different arrangement; i'm not too up on how to build batteries.

-1
doot doot (feddit.nu)
 
view more: next ›