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[Richard230]

The Chinese EV manufacturer, Nio has announced that their new ES6 SUV will have semi-solid-state batteries that offer long range with a higher energy density. See the attached article which was published in my newspaper yesterday.

[Specter]

What exactly is a solid state battery anyways?  No liquid?  That's where we are at now I thought.  Cap based? well then it's not really a battery then since it's not chem based.

Either way if they can get more capacity with less weight / greater longevity then more power to them and I hope its the start of something really good here.

aaron

[jotjotde]

Yeah, no liquids inside freeing the manufacturers from some physical boundaries resulting in much higher energy density (factor 2 and up).

If that article is really true, remains to be seen. Wouldn't be the first piece of Chinese propaganda which turns into thin air when closely looked at.

[Stonewolf]

What exactly is a solid state battery anyways?  No liquid?  That's where we are at now I thought.  Cap based? well then it's not really a battery then since it's not chem based.

Either way if they can get more capacity with less weight / greater longevity then more power to them and I hope its the start of something really good here.

aaron

Current cells are sealed with a liquid electrolyte inside (the cell is actually tightly packed and is more wet than fluid so it's best not to think of it like a can of cola or whatever), Energicas use Lithium Polymer which is still technically a liquid electrolyte but the electrolyte is some kind of weird polymerised substance rather than a simple compound. Solid state batteries use a solid electrolyte (though again, less brick, more powder) which potentially can achieve greater power density, higher charge/discharge rates, and better thermal performance but not all of those are realised in current solid state products and IIRC nobody has managed to get a mass produced one out yet.