Batteries and New Battery Technologies

[BertKu]

Originally Posted by philSweet

don't think these have made an appearance here yet.

http://www.redflow.com.au/

I had a look at them. The volume needed for 10 Kwh = 8 x 4 x 8 dm = 256 litre while the number of RT12240 EV I bought , is 0.8 x 1.8 x 1.7 x 35 = 85.7 Litre and the weight for those 35 (also 10Kwh) is 248 Kg. Not a fraction of the weight, like it is claimed, only 10% more over the 220 Kg. What I don't know is the lifetime of those Zinc batteries. My experience from SLABS (sealed lead acid batteries) is very good. Some of them I have here already for 8 years and are still OK. But I immediately re-charge them to just under the gassing voltage of 13.6/8 Volt and keep it there until next usage.
Bert

[Pericles]

Don't know what to make of this announcement.

http://nlpc.org/stories/2012/04/04/t...ompany-withers

Looks like only EEStor are left researching bigger and better electrical storage science and I'm not sure about them either. Ho hum!

http://www.freewebs.com/eestorfaq/