Al(s) Al3+(aq) + 3e- and Au+(aq) + e- Au(s)

It's a difficult question without specifics. I suppose things such as nanowire batteries which have a high capacity and a low charge time whilst retaining their original charge for many cycles.

You can grab MEMS for electrical engineering degree at the University of California, San Diego electrical engineers are building a forest of tiny trees in order to nanowire cleanly capture solar energy and harvest it for hydrogen fuel generation.

No, a double "a" battery is a 1.5V battery.

No, a double "a" battery is a 1.5V battery.

it operates a battery,mostly a 9 volt battery