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CATL says next-gen sodium-ion battery supports 500 km range, readies for 2026 mass production (carnewschina.com)
submitted 1 year ago by to c/technology@lemmy.world
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cross-posted from: https://lemmy.zip/post/48958993

energy density of 175 Wh/kg

CATL explained that sodium-ion batteries have slightly lower energy density than lithium-ion batteries but provide distinct advantages in low-temperature performance, carbon footprint, and safety.

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[–] 10 points 1 year ago (4 children)

"slightly lower" == 2/3rds, apparently. the model 3's pack is 250Wh/kg. also, 500km range in what? the only way you could fit an equal-range battery in a contemporary compact vehicle like the model 3 would be if it had almost double the density of Li-ion.

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