That would depend on the definition of a "cycle." If these truly enable 5x energy density there would be cars on the market with 1,200 - 1,500 mile range. The

That would depend on the definition of a "cycle." If these truly enable 5x energy density there would be cars on the market with 1,200 - 1,500 mile range. The average American drives 40 miles per day. If I were an average American driving an average amount and I charged my car every night it would be topping the battery from 97% to 100%. Does that qualify as a cycle? I don't know, but I doubt it. Even if I recharged once per week that would be 80% to 100%, and I would also doubt that qualifies as a cycle. The authors estimated 10 year lifespan but I'm not sure how they came up with that number, either. If these batteries really do offer 5x density I would likely charge my car 30-40 times per year.