I suggest reconsidering whether or not you want to give resources to the AI at all. The AI is not bad as far as computer AI goes, but it's unlikely that the AI will be able to make better use of the resources than you can. The AI has almost no sense of real strategy or tactics and does an awful job of micromanaging its ships. However, perhaps helping the AI to fight other AI might make sense, but if I were you I'd rather use the resources and credits to make myself more powerful. Really, the best thing you can do is to use that money to wipe out opposing AI players.
Note that in the online multiplayer community, people barely regard AI as a player at all and hope that, at best, an AI ally (which takes over when human teammates drop) will serve as a meatshield or minor distraction to opponents.