▲ 635 ▼ 'It doesn’t catch fire': Why China’s "fireproof" sodium battery could be the breakthrough that makes EVs safer than ICE cars (www.techradar.com) submitted 3 months ago by schizoidman@lemmy.zip to c/technology@lemmy.world 204 comments fedilink hide all child comments cross-posted from : https://lemmy.zip/post/62209262
[+] BlackLaZoR@lemmy.world -15 points 3 months ago (4 children) Technically correct. Sodium blows up when exposed to water. permalink fedilink source hideshow 8 child comments replies: [–] Benaaasaaas@group.lt 29 points 3 months ago So does lithium, even more violently, good thing is that nobody is using pure lithium or sodium permalink fedilink source parent [–] SkaveRat@discuss.tchncs.de 15 points 3 months ago (1 child) So does lithium. Not relevant for battery tech, tho permalink fedilink source parent hideshow 2 child comments replies: [–] BlackLaZoR@lemmy.world -4 points 3 months ago Very relevant for firefighters who have to deal with lithium and sodium fires. BTW: Explosion in case of lithium is indirect since you need a hydrogen buildup first. In case of sodium plus water it goes boom almost instantly permalink fedilink source parent [–] ProgrammingSocks@pawb.social 6 points 3 months ago Jesus Christ you all want to discount Chinese innovations so bad. America won't fund anything that doesn't immediately return anymore. They've fallen off. permalink fedilink source parent [–] gandalf_der_12te@discuss.tchncs.de 2 points 3 months ago (1 child) they're not using raw sodium but obviously mixing it with other chemicals. so it's not relevant. permalink fedilink source parent hideshow 2 child comments replies: [–] BlackLaZoR@lemmy.world 1 point 3 months ago No, by design, you have as close as possible to raw metal on one of the electrodes when battery is fully charged. That's the chemistry behind it - its moving metal between oxidation states. When it burns down, it also moves to higher oxidation states. Volatility is baked in. Usually you have lithium in carbon matrix that acts as physical sponge. But that's just raw lithium in a sponge. It will still burn like hell. permalink fedilink source parent
[–] Benaaasaaas@group.lt 29 points 3 months ago So does lithium, even more violently, good thing is that nobody is using pure lithium or sodium permalink fedilink source parent
[–] SkaveRat@discuss.tchncs.de 15 points 3 months ago (1 child) So does lithium. Not relevant for battery tech, tho permalink fedilink source parent hideshow 2 child comments replies: [–] BlackLaZoR@lemmy.world -4 points 3 months ago Very relevant for firefighters who have to deal with lithium and sodium fires. BTW: Explosion in case of lithium is indirect since you need a hydrogen buildup first. In case of sodium plus water it goes boom almost instantly permalink fedilink source parent
[–] BlackLaZoR@lemmy.world -4 points 3 months ago Very relevant for firefighters who have to deal with lithium and sodium fires. BTW: Explosion in case of lithium is indirect since you need a hydrogen buildup first. In case of sodium plus water it goes boom almost instantly permalink fedilink source parent
[–] ProgrammingSocks@pawb.social 6 points 3 months ago Jesus Christ you all want to discount Chinese innovations so bad. America won't fund anything that doesn't immediately return anymore. They've fallen off. permalink fedilink source parent
[–] gandalf_der_12te@discuss.tchncs.de 2 points 3 months ago (1 child) they're not using raw sodium but obviously mixing it with other chemicals. so it's not relevant. permalink fedilink source parent hideshow 2 child comments replies: [–] BlackLaZoR@lemmy.world 1 point 3 months ago No, by design, you have as close as possible to raw metal on one of the electrodes when battery is fully charged. That's the chemistry behind it - its moving metal between oxidation states. When it burns down, it also moves to higher oxidation states. Volatility is baked in. Usually you have lithium in carbon matrix that acts as physical sponge. But that's just raw lithium in a sponge. It will still burn like hell. permalink fedilink source parent
[–] BlackLaZoR@lemmy.world 1 point 3 months ago No, by design, you have as close as possible to raw metal on one of the electrodes when battery is fully charged. That's the chemistry behind it - its moving metal between oxidation states. When it burns down, it also moves to higher oxidation states. Volatility is baked in. Usually you have lithium in carbon matrix that acts as physical sponge. But that's just raw lithium in a sponge. It will still burn like hell. permalink fedilink source parent