In reply to Horace Heffner's message of Thu, 19 Jul 2007 11:08:37 -0800: Hi, [snip] >It's stuck in the >polyethylene oxide? Hmmm... I wonder what the anode reaction is >then. I'm utterly confused - but it still seems worth posting because >O18 might play some role in all this. It will be interesting to see >if the lithium titanate battery continues to have some heating >problems despite replacement of the cathode. [snip] I think chemical exchange mechanisms occur at the atomic rather than the nuclear level. IOW whole atoms or ions of the same element simply bump one another aside as the energy required to break the old chemical bond matches that released by formation of the new bond. That means that normal thermal energy is enough to bring about the exchange. However slight binding energy differences between isotopes could easily lead to enrichment over time, especially if the binding energy of the heavier isotope to the electrode material is slightly greater than that of the respective lighter isotope. Regards,
Robin van Spaandonk The shrub is a plant.
