Always happy to see further development in the field of battery chemistry, but I temper my expectations with the realities of both cost and difficulty to mass produce. More investment and breakthroughs are good, and they push the industry forward, but keep in mind that most people (myself included) would rather a cheaper EV that takes twice as long to charge than vice versa (assuming a base capacity that is enough for all but roadtrips). The article does point out though that short-duration battery-powered flights may be a perfect application for a more pricey but higher-density battery.