[hunterpayne]

This isn't correct. This is only true when the battery is first manufactured just like with Li-ion. Once the battery starts functioning, it is ionized metallic Sodium. All the volatility of Na but with corrosion too. There is no Chlorine nor any other halogen in there to engage in an ionic bond. In short, once the battery is functioning, the trick used to keep the Na in an ionic bond stops working (by design). After all, the ionic bond would prevent the battery from functioning.

It should be noted that most manufactures aren't doing pure Na-ion. They are mixing in a little Na with the Li to stretch Li supplies and gather data on the impact of the increased volatility on safety. I wouldn't expect their first use to be in cars. I would expect them to be in grid stabilizing batteries.

[margalabargala]

I was sure you were wrong so I went and did some reading and, you're right. I'm wrong.

I was thinking of the aqueous sodium ion batteries, which do not have the issues described. I thought those were the ones that are commercially available, but that's not the case.

[hunterpayne]

Kudos on being big enough and actually caring about accuracy.

[rkagerer]

This chain is an example of why I love HN so much.

[aixpert]

you deserve a high value metal medal

[Tade0]

Isn't there very little free sodium in such batteries? At any point in time most of it should be intercalated in one or the other electrode, no?