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SolidEnergy - 13 Wh in 29 g li-ion cell - any independent confirmation?

Posted: Tue Sep 12, 2017 5:13 pm
by Munchausen
This company is claiming 13 Wh in a 29 g li-ion cell:

http://assets.solidenergysystems.com/wp ... Sheet1.pdf

http://www.solidenergysystems.com/

Quite outrageous. Is this yet another startup soon to be forgotten or is there any indepent confirmation?

They also claim they make 5000 a month of them

http://www.solidenergysystems.com/hermes/

Re: SolidEnergy - 13 Wh in 29 g li-ion cell - any independent confirmation?

Posted: Tue Sep 12, 2017 6:45 pm
by Maui
After they made press last August claiming a breakthrough, I checked up on them every couple of weeks. It has been crickets and had been assuming this was another false hope. Perhaps it still is, but happy to have hope still alive.

Edit: ... also, this is for a solid state lithium battery, not Li-ion

Re: SolidEnergy - 13 Wh in 29 g li-ion cell - any independent confirmation?

Posted: Wed Sep 13, 2017 2:50 am
by Maui
Excuse me, I guess I wasn't right either. This is Li-Metal which is apparently different than solid state lithium... I guess I need to go read some.

I did find this:
I contacted SES (Solid Energy Systems) yesterday, because the specs of the Hermes battery cell had a typo, I used the opportunity to ask them when do they expect to have it commercially available. The response I got was that it will be available mid next year in commercial drones.

http://pushevs.com/2017/09/08/lg-chem-w ... next-year/

... yet in August 2016 they said it would be available by the end of that year in drones. This also sounds very different from actively producing 5000/cells a month (and what is one "cell"?)

Above link pointed to this recent interview:
http://www.koreatimes.co.kr/www/tech/20 ... 35645.html
... that doesn't really provide any details.

Re: SolidEnergy - 13 Wh in 29 g li-ion cell - any independent confirmation?

Posted: Tue Jul 03, 2018 10:46 am
by Carl White
https://spectrum.ieee.org/energy/enviro ... -in-drones

They seem to be in exactly the same place they claimed to be about two years ago.

The company is currently testing its batteries for drones and expects to begin selling them later this year, followed by batteries for wearables in 2019 and for electric vehicles after 2021.


Also:

At $500 per kilowatt-hour, SolidEnergy’s battery is currently much pricier than conventional lithium-ion batteries, which now sell for about $200. But Hu expects costs to go down with large-scale manufacturing and is talking with major battery makers.

Re: SolidEnergy - 13 Wh in 29 g li-ion cell - any independent confirmation?

Posted: Wed Jul 04, 2018 3:08 pm
by paperburn1
Doing some back of envelope guesses and they are claiming to have a energy density equivalent to TNT.
How stable is this stuff If it decides to spontaneously disassemble, i mean current batteries are bad enough.

https://www.youtube.com/watch?v=AAZ62tUtc0w

Re: SolidEnergy - 13 Wh in 29 g li-ion cell - any independent confirmation?

Posted: Wed Jul 04, 2018 6:52 pm
by Maui
Carl White wrote:They seem to be in exactly the same place they claimed to be about two years ago.


If you look back to two years ago in their original press release and news stories (too lazy to search right now), pretty much the same as that too. Actually, I think at that point they were projecting cars in two years at that point, now they say three.

Last year I was excited to see they weren’t dead— this year I’m pretty much convinced they are.

Re: SolidEnergy - 13 Wh in 29 g li-ion cell - any independent confirmation?

Posted: Fri Jul 06, 2018 2:45 pm
by Munchausen
Seems there is no other option than wait and see if there is anything real in this.

They are hiring a director:

https://www.linkedin.com/jobs/view/dire ... -687106908

Fresh article:

https://spectrum.ieee.org/energy/enviro ... -in-drones