the quoted website also confuses magnesium and manganese: the torqueedo batteries are also Lithium-Mangenese (Mn): This has nothing to do with Magnesium (Mg)
Bernd, I stand corrected. Thank you. Germans always were good at chemistry. Maybe I should use something other than a Cabela's Outfitters catalog for my research? Anyway, I do stand by my broad brushing of being careful how to use and store higher capacity Lithium batteries. It seems the thermal runaway chance is just too great, to use or store them in anything but a very careful manner! If they are too close together, one bad apple can spoil the bunch. There is some talk of using Magnesium and Sulfur for some kind of electric car batteries. Hope the Magnesium isn't in a dangerous state in that case.