▲ 514 ▼ New sodium-ion battery skips mechanical cooling with 97.9% efficiency (interestingengineering.com) submitted 3 months ago by Return_of_Chippy@lemmy.world to c/technology@lemmy.world 91 comments fedilink hide all child comments I've been hearing about these for a few years now. Huge if they work out at a large scale.
[–] SaveTheTuaHawk@lemmy.ca 6 points 3 months ago (2 children) Nope. Too heavy for the power capacity. permalink fedilink source parent hideshow 2 child comments replies: [–] Folstar@lemmus.org 3 points 3 months ago (1 child) While I get that this is the narrative, people are overstating this case. High end sodium batteries have a similar energy density range to lower end lithium batteries (~150-175 wh/kg). This idea that people wouldn't buy a battery that is cheaper, safer, and has a much longer cycle life if it weighs a bit more or only runs 80% as long between the faster charges is puzzling at best. permalink fedilink source parent hideshow 1 child comment replies: [–] ThomasWilliams@lemmy.world 3 points 3 months ago They have less density than Li ion because of their honeycomb structure. They may have the same output per weight, but they have more volume. permalink fedilink source parent
[–] Folstar@lemmus.org 3 points 3 months ago (1 child) While I get that this is the narrative, people are overstating this case. High end sodium batteries have a similar energy density range to lower end lithium batteries (~150-175 wh/kg). This idea that people wouldn't buy a battery that is cheaper, safer, and has a much longer cycle life if it weighs a bit more or only runs 80% as long between the faster charges is puzzling at best. permalink fedilink source parent hideshow 1 child comment replies: [–] ThomasWilliams@lemmy.world 3 points 3 months ago They have less density than Li ion because of their honeycomb structure. They may have the same output per weight, but they have more volume. permalink fedilink source parent
[–] ThomasWilliams@lemmy.world 3 points 3 months ago They have less density than Li ion because of their honeycomb structure. They may have the same output per weight, but they have more volume. permalink fedilink source parent