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Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density

donutlab.com

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Re: Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density

#51

Post by [deleted] »

trhway wrote: post #46
nine_k wrote: post #41

> Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density This is damn impressive. I suppose all the makers of military drones are lining up at the factory already. I mean, electric bikes are fine, but who has the most burning need to increase range and payload?..

i don't see them mentioning of price and C-rating. Suppose their C-rating is sufficient. Current widely available cheap batteries are almost 300Wh/kg. So, on a 3 kg drone with up to 3 kg payload (say RPG-7 single shaped charge warhead) with say 30 min flight time the new battery will give you 10 min additional flight time. At what price? If the price results in having only one 40 min drone instead of 2 30 min drones,…

[deleted]

Re: Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density

#52

Post by rubyn00bie »

trhway wrote: post #46
nine_k wrote: post #41

> Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density This is damn impressive. I suppose all the makers of military drones are lining up at the factory already. I mean, electric bikes are fine, but who has the most burning need to increase range and payload?..

i don't see them mentioning of price and C-rating. Suppose their C-rating is sufficient. Current widely available cheap batteries are almost 300Wh/kg. So, on a 3 kg drone with up to 3 kg payload (say RPG-7 single shaped charge warhead) with say 30 min flight time the new battery will give you 10 min additional flight time. At what price? If the price results in having only one 40 min drone instead of 2 30 min drones,…

Yeah, I was noticing that too. There is a company out there, Amprius, which has validated their silicon anode lithium ion batteries that can discharge at 10C (or 20C pulses), have varying densities from ~345wh/kg to 450wh/kg, and are shipping them to customers for drones and VTOLs.

I think until we have an independent lab verify the results, it's pretty much impossible to say if their (Donut Labs) claims are true or not. The only thing I'm particularly suspicious of is that they claim their battery was verified but didn't say by who or provide a whitepaper on it. Both of those seem to be the bare minimum for most battery manufacturers, and with their extraordinary claims I'd assume they'd have them front and center.

Re: Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density

#53

Post by viraptor »

_carbyau_ wrote: post #25

Seems vaporware at the moment. But has anyone else had thoughts on how solid "solid state" batteries are? IE could the frame of my next motorbike be made from solid state batteries?

In theory. There's a few "car frame made of solid state batteries" idea explorations on YouTube. Of course someone actually has to make it. And ensure you don't electrocute the emergency personnel touching the car, after you get into a crash.

Re: Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density

#54

Post by cogman10 »

cm2012 wrote: post #50

If true, would have massive geopolitical implications. 1) China has gone all in on batteries. A competitor from Finland would be shocking. Scale is the real issue. 2) Luckily Finland hates Russia so this probably can't be used for Russian drones

Nah.

Being able to scale out is far more important than the underlying tech ultimately. I'd expect that China would pretty quickly copy this if it proves out and would likely start outstripping them.

Re: Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density

#55

Post by stevage »

_carbyau_ wrote: post #25

Seems vaporware at the moment. But has anyone else had thoughts on how solid "solid state" batteries are? IE could the frame of my next motorbike be made from solid state batteries?

>With Verge Motorcycles bikes now using the company’s solid state battery technology in vehicles out on the road in use in Q1

Claiming that a technology is shipping imminently doesn't fit the normal definition of vapourware.

Re: Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density

#57

Post by Aloisius »

cm2012 wrote: post #50

If true, would have massive geopolitical implications. 1) China has gone all in on batteries. A competitor from Finland would be shocking. Scale is the real issue. 2) Luckily Finland hates Russia so this probably can't be used for Russian drones

Eh. There are at least a half dozen other companies with working solid state batteries outside China like Rimac in Estonia (with ProLogium in Taiwan and Mitsubishi), Solid Power in Colorado (with Samsung SDI) and QuantumScape in California (with VW's PowerCo SE).

Mass manufacturing them is the big issue.

Re: Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density

#59

Post by [deleted] »

nine_k wrote: post #45
slaw wrote: post #43

Earlier quoted context omitted.

1 MW chargers don't look any bigger than standard chargers. https://insideevs.com/news/761403/byd-thousands-megawatt-cha...

The thickness of the cables is often due to their water cooling. Transferring 1 MW at 99.9% efficiency means 1kW escaping as heat.

[deleted]

Re: Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density

#60

Post by Freebytes »

theLegionWithin wrote: post #22

I guess we'll see what happens in ~5 years

Some models of the motorcycle are available right now and can charge to 80% in 10 minutes and go ~350 miles. Unless it is a scam, and you will not get your motorcycle... However, this seems legitimate.
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