The anode is graphite, cathode is LiFePO4 for LFP cells. I just heat mine to 65F while the car is parked at home similar to Rick. Have almost the same range in winter as summer with the cabin heater off as a result. This is the sixth winter for the car.
I think there is quite a lot known about lithium chemistries and main effects for cycle life, but not by diy ev'ers. Additives to the electrolyte can make a big difference to cell performance. See e.g.: https://www.youtube.com/watch?v=9qi03QawZEk Note that the company wouldn't tell him what the additives were. Same with any tech industry, the insiders know much more than outsiders like us know. Don't infer they are ignorant just because we are. -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/Cold-Charging-Lithium-Experiences-tp4667675p4673983.html Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.com. _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
