>>Well if you can store 61 times more energy, that just means there's room for >>improvement in the existing batteries... Good news, if nature was able to do >>it so can we I hope.
Zinc-air batteries, which combine atmospheric oxygen and zinc metal in a liquid alkaline electrolyte to generate electricity with a byproduct of zinc oxide; and when re-processed – that is re-charged - the process is reversed and oxygen and zinc metal are regenerated. These battery types are attractive, because zinc is cheap and abundant and because they have much higher energy density than lithium-ion batteries – the current high density leaders; Zinc air batteries ware also non-flammable unlike lithium ion (which is nice). Zinc air offers about twice the gravimetric density (Wh/kg) and three times the volumetric density (Wh/L) of Li-ion technology. Lithium air has a theoretical specific energy of 11,140 wh/kg (lithium metal is around 45 Mj/kg) – you could fly an all-electric turbine jet with that kind of energy density. Le 28 févr. 2014 00:50, "LizR" <lizj...@gmail.com> a écrit : On 28 February 2014 07:47, John Clark <johnkcl...@gmail.com> wrote: Lithium batteries are the most energy dense batteries in use today and also the most expensive, they can store .72 megajoules per kilogram, gasoline stores 44 megajoules per kilogram; so gasoline is 61 times more energy dense than the best batteries and is far far far cheaper. Are you talking about the real costs here or just the cost at the pump (which is of course subsidised massively by ignoring its environmental effects) ? I mean the real cost MAY be cheaper but you have to factor in saving the Earth... -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com <mailto:everything-list%2bunsubscr...@googlegroups.com> . To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
