Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

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

donutlab.com

Post reply on HN
Print view View original

11–20 of 279 posts

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

#11

Post by TheRealPomax »

Animats wrote: post #9
cyberax wrote: post #4

No physical address, no patents, no mentions of independent testing, the whole "drag&drop OS to build EVs". Totally legit.

You can supposedly go see the bike at the Verge store at Westfield Valley Fair, 2855 Stevens Creek Blvd., Santa Clara, CA 95050-6709. That's a large mall near Apple HQ. Open until 9 PM. Someone in Silicon Valley should stop by on their way home today and take a picture. You can't just pay $35,000 and ride it away, though. They're just taking pre-orders. Still, at least you can go kick the tires and make sure it's not…

Pretty sure we established several times over that hubless wheels are a solution in search of a problem - they don't make a bike better, they make it worse in almost every way except looks.

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

#12

Post by cwmoore »

TheRealPomax wrote: post #11
Animats wrote: post #9

Earlier quoted context omitted.

You can supposedly go see the bike at the Verge store at Westfield Valley Fair, 2855 Stevens Creek Blvd., Santa Clara, CA 95050-6709. That's a large mall near Apple HQ. Open until 9 PM. Someone in Silicon Valley should stop by on their way home today and take a picture. You can't just pay $35,000 and ride it away, though. They're just taking pre-orders. Still, at least you can go kick the tires and make sure it's not…

Pretty sure we established several times over that hubless wheels are a solution in search of a problem - they don't make a bike better, they make it worse in almost every way except looks.

Very attractive.

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

#13

Post by cloudfudge »

From the donutlab page:

  > It can be charged to full in just five minutes without limiting charging to 80%, and supports full discharge safely, repeatedly, and reliably.
From the motorcycle youtube video[1]:

  > delivers up to 370 miles (600 km) of range and adds up to 186 miles (300 km) in under 10 minutes
One is claiming 100% in 5 minutes, and the other is claiming ~50% in 10 minutes. Why are their claims so different?

[1] https://www.youtube.com/watch?v=cy_mXYItqXU

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

#15

Post by jonah »

TheRealPomax wrote: post #11
Animats wrote: post #9

Earlier quoted context omitted.

You can supposedly go see the bike at the Verge store at Westfield Valley Fair, 2855 Stevens Creek Blvd., Santa Clara, CA 95050-6709. That's a large mall near Apple HQ. Open until 9 PM. Someone in Silicon Valley should stop by on their way home today and take a picture. You can't just pay $35,000 and ride it away, though. They're just taking pre-orders. Still, at least you can go kick the tires and make sure it's not…

Pretty sure we established several times over that hubless wheels are a solution in search of a problem - they don't make a bike better, they make it worse in almost every way except looks.

More unsprung weight. Great!

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

#16

Post by ZeWaka »

cloudfudge wrote: post #13

From the donutlab page: > It can be charged to full in just five minutes without limiting charging to 80%, and supports full discharge safely, repeatedly, and reliably. From the motorcycle youtube video[1]: > delivers up to 370 miles (600 km) of range and adds up to 186 miles (300 km) in under 10 minutes One is claiming 100% in 5 minutes, and the other is claiming ~50% in 10 minutes. Why are their claims so different…

Temperature thresholds, maybe the bike has active cooling?

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

#17

Post by cloudfudge »

TheRealPomax wrote: post #11
Animats wrote: post #9

Earlier quoted context omitted.

You can supposedly go see the bike at the Verge store at Westfield Valley Fair, 2855 Stevens Creek Blvd., Santa Clara, CA 95050-6709. That's a large mall near Apple HQ. Open until 9 PM. Someone in Silicon Valley should stop by on their way home today and take a picture. You can't just pay $35,000 and ride it away, though. They're just taking pre-orders. Still, at least you can go kick the tires and make sure it's not…

Pretty sure we established several times over that hubless wheels are a solution in search of a problem - they don't make a bike better, they make it worse in almost every way except looks.

Yes, when I see hubless wheels, my immediate thought is, "why did they spend engineering time on this when their goal was completely unrelated to it?" It makes me think they needed a smokescreen.

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

#18

Post by cloudfudge »

ZeWaka wrote: post #16
cloudfudge wrote: post #13

From the donutlab page: > It can be charged to full in just five minutes without limiting charging to 80%, and supports full discharge safely, repeatedly, and reliably. From the motorcycle youtube video[1]: > delivers up to 370 miles (600 km) of range and adds up to 186 miles (300 km) in under 10 minutes One is claiming 100% in 5 minutes, and the other is claiming ~50% in 10 minutes. Why are their claims so different…

Temperature thresholds, maybe the bike has active cooling?

Or maybe swags since this is vapor. I look forward to finding out.

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

#19

Post by metalman »

they dont use the word patented, but claim to have engineered the battery but avoid discussing any particulars of chemistry, other than to say it is not lithium, which strongly suggests a silent partner. At 35k for a bike they have to be more forthcoming, though as there are only be so many serious solid state battery developers out there, and even less working on non lithium, someone will put the pieces together quick.

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

#20

Post by cloudfudge »

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.

"Now shipping?" I do not see evidence of that. I am not even convinced the one you can test ride has this battery tech. They announced this same bike at least a year ago with regular LIon batteries.
Post reply on HN