Roger Stockton via EV wrote:
I think that it is possible that people are confusing *theoretical* cell
chemistry with that of *practical* cells.
I think that is exactly the case.
In theory, theory and practice are the same.
In practice, they are not. -- Albert Einstein
Of course there is an electric field inside a battery. Without an
electric field, there would be no voltage, and you wouldn't have a
battery. By definition, an electric field exists whenever there is a
voltage difference between two points. The electric field provides the
force that moves electrons and ions (polarized molecules) between plus
and minus sides of the cell. These charges *will* find a way to leak.
An analogy: The designers may *think* their wonderful new concrete dam
doesn't leak a drop. But the tourist notices that the walls of the
canyon below it are wet, and the farmer notices the change in ground
water at his wells. The pressure is there, and the water *will* find
ways around the dam, whether you like it or not.
The important *practical* consideration is whether this leakage matters,
or not. In a pacemaker, an ultra-low self-discharge rate is important
(so they don't have to cut you open every few years to replace the
battery)! In an EV that you can plug in any time you like, it's not very
important.
So, can we go back to discussing the practical aspects of EVs now?
--
The greatest pleasure in life is to create something that wasn't
there before. -- Roy Spence
--
Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com
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