Quite an explosion if a 1 kg battery developed a mechanical cascade failure and released its 1 MJ in a few milliseconds. That's about the equivalent of 250g of TNT - approximately 5 hand grenades worth.
If this concept pans out, that means that ceramic vacuum tube batteries could also end up being extremely rugged. As long as the final sealing of the ceramic didn't turn out to be a problem with the heat. This could circumvented by maybe sealing it with a laser.
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.