Definitely is a possibility. I will explore this more.Here's an idea.
Instead of the Library sharing research, how about building it gives us medical knowledge, and we can heal some of the units we lose in each battle.
Free heal: 10% of units healed
With Silver: 25% of units healed
With Gold: 50% of units healed (Innogames might make a ton of money off that lol)
Note...Units disappear after twelve hours...tweak these percentages to make them work if you decide to use this.
Another Note...If you don't want the library to do this replace it with some medically related special building, or even a temple to the god/dess of healing. (I don't feel like looking up who that would be right now, I think Apollo?)