Post by @EisFrei

In reply to 6 earlier posts

@schizoidman@lemmy.zip on lemmy.zip Open parent

'It doesn’t catch fire': Why China’s "fireproof" sodium battery could be the breakthrough that makes EVs safer than ICE cars

cross-posted from : lemmy.zip/post/62209262

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@SolarMonkey@slrpnk.net on slrpnk.net Open parent

I thought sodium batteries had considerably less energy density than conventional? Is that not a problem anymore?

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@EisFrei@lemmy.world on lemmy.world Open parent

They indeed have less energy density, but I don’t get your point about less safety. They work better in high and low temperatures, can be charged a lot faster and don’t degrade as fast. Sodium isn’t as reactive as Lithium, lowering the risk of fires.

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@SolarMonkey@slrpnk.net on slrpnk.net Open parent

My point is that if they have less energy density, they aren’t a particularity great choice for EVs, as the increased battery size to get the same capacity makes the whole thing much heavier, requiring even more battery to move it. I guess for like short range vehicles, it might be fine, but at least around here, thats gunna be a pretty tough sell, because everything is spread out. It can’t really make EVs safer if its not being used for them due to the drawbacks, is all.

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@nucleative@lemmy.world on lemmy.world Open parent

ICE engines use a bunch of physical space for accessory components related to the engine. Li-ion powered e-cars reclaimed a ton of that space (i.e. Tesla has a frunk) Perhaps next using a bit more space for a less dense sodium battery in exchange for a vehicle that is 0% explodable is a worthy trade (if claims are true).

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@encelado748@feddit.org on feddit.org Open parent

Battery density is energy per kilos. The problem is not only were to put the battery, but also the added weight.

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EisFrei in !technology

@EisFrei@lemmy.world · 9d

Leave the weight as it’s, accept lower range which is offset by faster charging speeds. Or just buy a car with a lithium battery if you cannot accept this.

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