That may not be as bad as it sounds.Their "EV" cell, with a projected 400 wh/kg in 2016, is only at 600 cycles
Depends on actual conditions under which those 600 cycles were obtained and how exactly would a battery pack made of such cells behave.
600 cycles of a 100 mile battery is bad. Only ~55k miles before <80%NOC
600 cycles of a 600 mile battery is *good*, ~300k miles before <80%NOC
The devil hides in details...