Battery help please! (samsung inr18650-13q)

To all the battery gurus, do you have any information on the samsung INR18650-13q.
I have found out that they are 1300ma and a 18amp max continuous discharge rate. What I would like to know is what chemistry they are? I am hoping that they have a “safe” chemistry type similar to a lithium manganese type.
Thanks!
(btw they came from a ryobi one+ 18v Pack - thanks home depot battery recycle bin)

With a voltage of 4.17, a XML T6 pulled 4.76 amps with the crappy leads! I think a DD XML is a bad idea with these cells. With my TF flames it only pulled 2.6amps.
4 of the cells are >4.08V and 1 is 0.00V. The pack looks brand new.

INR are cells where the cathode material is lithium nickel oxide.

They are probably worn out. I would not use them.

Still aren't. Check the specs: http://www.samsungsdi.com/battery/cylindrical-INR18650-13Q.jsp

It says NCA which stands for Nickel Cobalt Aluminium.

I wish I had taken pictures of the battery pack, it looked brand new. No wear on the contacts no scuffs or marks. It could have been put back in a blister pack and sold as new. I really don’t think that this pack saw many cycles at all. Combined with the one cell being a 0.00v (completely open). I think it was a lemon pack and the owned had no receipt –> recycled.
Anyone have any thoughts on the chemistry in regards to safety? Better than lico but not quite llimn?
I like the 18A max continuous draw spec!