Who wants this battery in their blank Slate?

[ScooterAsheville]

Another result this week. They show the Verge motorcycle with an air-cooled pack charging in the real world. One by one they seem to be answering objections. But there's still more to be proved. Also, everyone is waiting to see if they ship the Verge motorcycle with solid state battery by the end of Q1. If they do that, you'll be seeing the Sandy Munro teardown videos days later.

So far they've shown...

• 100C High temperature operation (at the cell level)
• very rapid charging speeds (5 minute charge at the cell level)
• Charge retentian (prove it's not a supercapacitor)
• Real-world, pack-level recharge time

But the big ones still remain...

• claimed battery lifespan (100,000 recharges)
• claimed gravimetric energy density
• claimed ability to scale and manufacture at competitive cost

I still find it interesting that the test timeline seems coordinated to be finished right about the time they say they'll ship cycles. And also that that date happens to be 1 April.

Donut is kind of like Slate. One crowd is highly skeptical. The other crowd absolutely believes. Not a lot of middle ground.


https://idonutbelieve.com/

 

[KevinRS]

Another result this week. They show the Verge motorcycle with an air-cooled pack charging in the real world. One by one they seem to be answering objections. But there's still more to be proved. Also, everyone is waiting to see if they ship the Verge motorcycle with solid state battery by the end of Q1. If they do that, you'll be seeing the Sandy Munro teardown videos days later.

So far they've shown...

• 100C High temperature operation (at the cell level)
• very rapid charging speeds (5 minute charge at the cell level)
• Charge retentian (prove it's not a supercapacitor)
• Real-world, pack-level recharge time

But the big ones still remain...

• claimed battery lifespan (100,000 recharges)
• claimed gravimetric energy density
• claimed ability to scale and manufacture at competitive cost

I still find it interesting that the test timeline seems coordinated to be finished right about the time they say they'll ship cycles. And also that that date happens to be 1 April.

Donut is kind of like Slate. One crowd is highly skeptical. The other crowd absolutely believes. Not a lot of middle ground.


https://idonutbelieve.com/

I think there is a lot of middle ground with Slate, lots of people who are either hopeful but cautious, etc.
With Donut, they have made extraordinary claims, and so far have trickled out evidence, and engineers who work on batteries think the physics don't work. So far they seem to be working from the least extreme parts of their claims. Those engineers know high temperature operation, fast charging, and the other things with tests shown so far are possible, and with some work they could reproduce those, it's the lifespan and energy density that are problematic, especially in combination with high temp and fast charging, scaling is a challenge for all new batteries.

 

[metroshot]

Promising news from solid state battery development:

A solid-state EV battery that can achieve 800 miles of driving range — It’s becoming a reality

 

[Tom Sawyer]

It will be interesting to see how much this technology will cost.

 

[metroshot]

It will be interesting to see how much this technology will cost.

Probably too expensive for the first EV production batteries - probably not going into a Slate as it's a low cost EV.