Donut Lab's Battery has a Problem with Physics (and manufacturing)

Описание: Donut Lab claims to have a battery that achieves a whopping 400 Wh/kg of energy density, charges in 5 minutes, lasts for 100,000 cycles, uses abundant non-toxic materials, can maintain performance at extremely low temperatures, is safe at very abusive temperatures, and is lower cost than lithium ion batteries.

The question is: Is the Donut Battery real?

In my view, it’s not, and in today’s video, I’m going to walk you through why that’s the case from a first principles physics perspective and from a more pragmatic manufacturing perspective.


Ziroth Analysis Video on Speculation:    • Decoding The World's First Solid State Bat...  

Two Bit's Analysis on Donut's First Set of Test Results:    • Donut Lab's Solid State Battery Test are S...  

Tom Bötticher Analysis Video:    • Donut's "Super-Feststoff-Akku": Batterie-C...  


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Timeline
00:00 Introduction
01:11 Defining Real
02:10 Ragone Plotting
04:17 Remembering QuantumScape
06:39 Battery Physics
10:56 Supercap Physics
14:11 Physics Summary
15:19 Manufacturing
18:45 Summary



Intro Music by Dyalla: Homer Said