We need these batteries like yesterday, there are laboratories all over the world working on solid state batteries it’s good to see some practical breakthroughs being made in the field. Of course we shouldn’t get too excited just yet, until these are being manufactured and used in cars, laptops, and flying electric taxis, there is probably going to be quite a few years before we see this tech in common usage.

I will get really excited if Elon Musk announces he has invested in QuantumScape. It is encouraging to read that VW has a stake in it. Musk has said that one of his goals was to see the world turn away from ICE technology, and if other manufacturers get a piece of the action,he is okay with that.

The fast charging rate is really cool, but I want to see what happens to lifetime at more realistic temperatures. The outside of many batteries during fast charge or discharge is hot to the touch, so maybe 40-50 C instead?

But every bit helps. (And somebody has to figure out how to do fast charge on a bunch of vehicles without overloading the local electrical grid.)

All very interesting, but still does not address the major problem of energy density by comparison with fossil fuels.

It will take improvements of orders of magnitude, not incremental improvements, before battery storage will be capable of replacing fossil fuels to an major extent, as this graph makes clear.

https://upload.wikimedia.org/wikipedia/commons/c/c6/Energy_density.svg

In reply to Catweazles' comment: The battery density and performance is only a part (1/3rd?) of the equation. Electrical Motor performance, aerodynamics, weight and also the chargers will also improve as we take this journey towards fossil fuel free vehicles.The other important factor is people need to improve their driving habits/skills. It's no use saying "Yeah but I love my gas guzzler and won't give it up!" However, the writing is on the wall and this will have to happen, happy or not.

It's easy to get jaded reading about the 'latest' battery breakthrough. What is the downside? How about the amount of lithium available. Currently little or no lithium is recyclable and even if it was there isn't an infinite amount available. Current known reserves are woefully inadequate also.

@SteveMc the comparisons between battery energy density and oil/gasoline/etc energy density have always been wrongheaded, because they're basically apple trees to oranges. One of those things is the actual energy carrier, the other is the container for the energy carrier. As you point out, at the very least you have to compare the systems including motors, transmission, fuel system, exhaust system etc. (An internal combustion fan would similarly cry foul if someone compared the mass of a gallon of gasoline to the mass of an energy-equivalent number of electrons.)

Will they be available in 100ah size + for the 4WD and camping use and not just for electric cars.

Catweazle: Energy density per se is not the only consideration. ICE has plenty of energy density,but can only deliver ~ 15% of it to the wheels. EV batteries have much lower energy density,but can deliver 95% or more to the wheels. The reborn Aptera is a prime example of what you can do with batteries and an efficient design. The car has a drag co-efficient of 0.12, if memory serves,and with the largest battery pack,can travel ~ 1000 miles on a charge.

OH screw you're car..We need phones,laptops,hand held and wearable electronics first, that's were It's needed more I'm sick of battery tech lagging so far behind for decades It's not even funny.
NOn-rechargeble battery's need to go the way of the corner payphone and die.
Sorry, just tired of seeing really promising things "Only 2-5 years away" and then POOF! Nothing