We use them now at NASA. The SLS rocket has silver zinc cells for the Booster Avionics as well as the Core stage Avionics. The rocket is one time use, they don’t recover it so cycle life is irrelevant. It’s hard to get them past safety hazards with lithium. Although they are using a small one on Core stage.
Sent from my iPhone > On Oct 7, 2018, at 3:25 AM, Paul Compton via EV <ev@lists.evdl.org> wrote: > > The Lunar Rover used Silver Zinc cells. It's usually reported that > these were primary cells, but they were the same cells used by NASA in > rechargable applications, they just didn't bother with any provision > to recharge them. > > Looking around, available Silver Zinc cells seem to have an energy > density of around 130 Wh/Kg, so Lithium have them matched on energy > density and well beaten on cycle life. > > > -- > Paul Compton > www.morini-mania.co.uk > www.paulcompton.co.uk (YouTube channel) > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) > _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
