I believe there are Nitecore labeled 14500s although they tap out at 2 amps but please don't quote me.
Edit:
Yep
https://www.fasttech.com/products/0/10001848/9648444-authentic-nitecore-nl1485-14500-3-7v-850mah

These are only .8 amp discharge, I think 2 amp discharge models can be had though.