Tesla battery researcher unveils new cell that could last 1M miles
>> The new battery tested is a Li-Ion battery cell with a next-generation “single crystal” NMC cathode and a new advanced electrolyte.If this is anything like growing single-crystal parts for aircraft, it won't be cheap.  The real question should be whether these new battery modules will last twice as long while remaining less than twice as expensive.>> Controlling the charge to less than 100% state-of-charge also helps push the longevity.Um, that is cheating.  Running any battery at less than capacity will extend its life.  You could put two batteries in the car, run them at 50% or alternate between them, and get double the life.  No prizes for that.