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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

#71

Post by stasomatic »

jaggs wrote: post #8
tedk-42 wrote: post #3

I'm very skeptical of any company that just 'pops up' and makes a bunch of claims that will shake up the industry. I doubt they'd sell to endusers, but not having any partnerships with established brands with sales figures is a big red flag. No mention of manufacturing capabilities either so I think it's just hype (or worse a rug pull for early investors)

Um... Did nobody see the Verge motorbike which is now shipping as standard with this battery? And the three companies which are also deploying the new battery tech? If this is a scam, it's definitely a very very sophisticated one.

The Verge was discussed at least 2 times, most recently yesterday, on the Wheel Bearings podcast (which I enjoy for the simple motorhead banter). https://overcast.fm/+AA7tJqdxHkE

Robbie from SAE International, who is of the hosts, and an avid motorcyclist, is impressed with the bike and the promise of SSBs. I only ride bicycles, can’t comment on the bike itself, but thought to share and widen their audience. It was kind of a mini shallow yet “deep dive”. It doesn’t seem to be mentioned on their own site for this episode, but the chapter in Overcast is the last one, linking to https://sustainablecareers.sae.org/article/donut-lab-verge-s...

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

#72

Post by xbmcuser »

1970-01-01 wrote: post #68

So solid state battery tech is very likely on-schedule for mass production over the next 4 years. There really isn't much time left for the haters to post stories attempting to factually dismantle and dismiss EVs before EVs pass the 51% adoption curve in 2030.

For me current battery tech is already good enough for passenger ev they cant even use the full charging speed capacity or the charge discharge cycles. Solid state batteries might be useful for heavy duty trucking or aeroplanes/drones

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

#73

Post by tw04 »

jjcm wrote: post #48

One of the things I haven't seen discussed yet in the comments is this claim: Clay-like design freedom They're claiming this not only can fit custom geometries, but can be part of the structure itself. Would love to see what they're building this out of. I expect we'll see some people dissecting the verve cycle batteries soon enough.

I don’t see any mention of clay in the article, just this:

> It can be produced in custom sizes, voltages, and geometries, enabling structural integration and non-traditional formats like serving as the body of a drone or a vehicle chassis.

Battery packs are part of the structure of basically all EVs. That’s not really something new or unique.

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

#74

Post by givemeethekeys »

1970-01-01 wrote: post #68

So solid state battery tech is very likely on-schedule for mass production over the next 4 years. There really isn't much time left for the haters to post stories attempting to factually dismantle and dismiss EVs before EVs pass the 51% adoption curve in 2030.

I will wait until the reviews and 3rd party lab tests come out before getting excited.

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

#76

Post by Alex2037 »

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

no one hates Kyrgyzstan though ;)

https://media.licdn.com/dms/image/D5622AQHRq_efww0ZsQ/feedsh...

regardless, batteries with 10% more wh/kg @ 500% the cost would be used for preciously few things, if any. after a few years of war, Russia had the presence of mind to revert to "quantity has a quality all its own" doctrine.

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

#77

Post by Alex2037 »

amarant wrote: post #67
cogman10 wrote: post #54

Earlier quoted context omitted.

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.

I don't really see why Finland would be unable to scale production though? Expensive workforce? Surely that could be worked around, Sweden still produces semis and have similarly costly workforce. What other impediments do they even face?

because building things in Europe requires complying with a myriad laws and regulations.

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

#78

Post by Thorondor »

Alex2037 wrote: post #70
nine_k wrote: post #45

Earlier quoted context omitted.

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

that depends. transferring 1 MW at 1 MV produces very little heat

Yes, but a car can't use electricity at 1 MV and converting the megawatt back to something lower than 1 MV still produces a lot of heat.

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

#79

Post by kevinsync »

The press release says they're demonstrating this at CES 2026, which starts tomorrow (Jan 6, 2026) so I imagine we'll have some kind of verification one way or the other..

Or maybe CES is already happening?? [0]

[0] https://www.cnet.com/home/electric-vehicles/donut-lab-produc...

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

#80

Post by taneq »

tw04 wrote: post #73
jjcm wrote: post #48

One of the things I haven't seen discussed yet in the comments is this claim: Clay-like design freedom They're claiming this not only can fit custom geometries, but can be part of the structure itself. Would love to see what they're building this out of. I expect we'll see some people dissecting the verve cycle batteries soon enough.

I don’t see any mention of clay in the article, just this: > It can be produced in custom sizes, voltages, and geometries, enabling structural integration and non-traditional formats like serving as the body of a drone or a vehicle chassis. Battery packs are part of the structure of basically all EVs. That’s not really something new or unique.

Yeah but they’re usually a rectangular prism, more or less.
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