If theh exist they don't have a good enough discharge rate to power a saber. If you want more capacity, you are going to have to use a bigger battery. Evej though the AW batteries might say they have less capacity than the trustfires, the AWs aren't overrated like trustfires are.
In short, for our purposes, there is no such thing as a 2200 mAh 14500 (again, for pur purposes).