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<DIV><FONT face=Arial size=2>The problem with the Duralites is they use Lithium
metal for the anode. The reason Erickson rejected them was due to safety
problems. Li-Ion is not in the same category and should not be confused
with a cell that uses lithium metal for the anode. The problem with using
lithium metal for the anode is that after several charges the morporology
of the surface is quite different in fact dendrites (potential shorts with
high temperature) can be formed on the surface of the lithium. In the case
of the lithium-ion the lithium is intercalated into graphite and is readily
moved back in upon charging. the reason charge control is critical (no
overcharging) is to control the plating of lithium metal in the cell. I
hope that this sheds light on the subject.</FONT></DIV></BODY></HTML>