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CATL sodium batteries, maybe in 2023: https://qz.com/2041051/chinas-catl-unveils-sodium-ion-battery-to-diversify-from-lithium/ https://qz.com/2041051/chinas-ca
by adamredwoods 5y ago
CATL sodium batteries, maybe in 2023:
https://qz.com/2041051/chinas-catl-unveils-sodium-ion-battery-to-diversify-from-lithium/ https://qz.com/2041051/chinas-catl-unveils-sodium-ion-batter...
- wffurr 5y agoSodium reacts explosively with water.
- ceejayoz 5y agoPure sodium, sure. You're full of sodium, though, and you don't explode.
- fy20 5y agoAs a kid I remember watching a documentary on spontaneous human combustion. That gave me nightmares for weeks...
- jlawer 5y agoSo does pure lithium
- wffurr 5y agoWhich is exactly why I am wondering how sodium batteries will be any easier to manage.
- ceejayoz 5y agohttps://spectrum.ieee.org/sodium-ion-battery https://spectrum.ieee.org/sodium-ion-battery > Sodium batteries are also more stable and safe than lithium-ion. They have a wider temperature range, are nonflammable, and there is no thermal runaway—which can cause lithium-ion batteries to catch fire—under any condition, says Pouchet.
- wffurr 5y agoThanks for the actual informative link instead of the CATL press release others are linking. Sodium-ion batteries seem to have some very desirable properties over other rechargeable battery chemistries. Has CATL substantially improved the energy density? Half the capacity on a per-weight basis than Lithium-ion seems pretty bad for EVs. Halving the range of already barely-acceptable vehicles seems pretty bad. Maybe it’s fine for short-range EVs and hybrids, but the range is one of the selling points of the Bolt.