SolidEnergy/A123 venture: 800wh/kg

[xenodius]

http://green.autoblog.com/2013/10/27/a123-solidenergy-working-on-battery-to-quadruple-range/

800wh/kg, and -40F to 482F safe usage range? Wonder about cycle life.

Big line for me: prototypes out next year!

 

[Honk]

I wouldn't bet a dime on these guys achieving their claims of 800Wh/kg.
It's entirely a theoretical level, just like any other chemistry.
Ordinary LiCoO2 has en theoretical level of 1000Wh/kg but real life density peaks out at approx 250Wh/kg.

If you look at Solidenergy Systems update page, there's no report on actual energy density progress. Not a single line.

Don't get me wrong.
I really like their claims and look forward buying such batteries, but I fear it will not happen in the close future.

 

[xenodius]

Well I guess that's the bad news I expected to hear. My vote still goes out to yolk-shell titanate microsphere based cells, but... let's see what the market delivers. -mobile

 

[liveforphysics]

http://www.businesswire.com/news/home/20131021006124/en/A123-Venture-Technologies-Agrees-Collaboration-MIT-Start-up

Wow. It uses a metal lithium anode. They must have some amazing tech to safely encapsulate it and still have a high ionic conductivity.

Or they are VC scammers. Like each weeks new 2x 5x 10x battery energy density press release claim, Im always hoping I will be wrong and it will be the breakthrough the revolution needed.

 

[iperov]

this video 1 year ago
A123 bankrupt

 

[xenodius]

http://www.businesswire.com/news/home/20131021006124/en/A123-Venture-Technologies-Agrees-Collaboration-MIT-Start-up

Wow. It uses a metal lithium anode. They must have some amazing tech to safely encapsulate it and still have a high ionic conductivity.

Or they are VC scammers. Like each weeks new 2x 5x 10x battery energy density press release claim, Im always hoping I will be wrong and it will be the breakthrough the revolution needed.

I've used lithium and sodium to dewater solvents and... that surprised me too.

I have more hope for materials engineers to develop a good membrane for air batteries, I think.... but a solid battery seems like it would be safer if crushed. Unless it catches fire spontaneously.

 

[LockH]

"Technological breakthroughs for 2017":
http://www.thedailystar.net/bytes/technological-breakthroughs-2017-1338706

Includes:

New tech to double smartphone battery

An MIT spinout is preparing to commercialise a novel rechargable lithium metal battery that offers double the energy capacity of the lithium ion batteries that power many of today’s consumer electronics. Founded in 2012 by MIT alumnus and former postdoc Qichao Hu ’07, SolidEnergy Systems has developed an “anode-free” lithium metal battery with several material advances that make it twice as energy-dense, yet just as safe and long-lasting as the lithium ion batteries used in smartphones, electric cars, wearables, drones, and other devices, reports MIT News. New battery tech could double the battery life by 2017.

This was MIT "news" back on August 16th:
http://news.mit.edu/2016/lithium-metal-batteries-double-power-consumer-electronics-0817

 

[redilast]

I always take this kind of thing like a grain of salt. Unlikely to materialize into their claims, but we can hope.