Just won't work, to affect a capship, you gotta have, 1. huge energy/shield damage, 2. huge radius for it to reach a battleship's shield core, which means it would rape the shields of any bombers/fighers nearby, and it would end up affecting them more than the battleship..
EMP missiles already exist. Paralysers knock down shields and energy.
The Inferno does very much the same, and is thus one of the best weapons to put on a bomber and to use against a bomber (fire it and they can't use their SN)