Identify dead component in notebook battery
Its a current sensing resistor, probably 5mΩ maybe a cree because they make resistors that neck down and have FZ in their ordering name (but the ones made now do not print the FZ on the resistor, so this makes me somewhat unsure, might be an older version of the same part):

https://www.bourns.com/docs/Product-Datasheets/CRE.pdf

I'm 80% sure it's a 2512 (you did not supply dimensions and should have), I'm 90% sure its a 5mΩ resistor.

You need to be sure of the value though. Maybe contact cree and see if this is one of theirs. 

Edit:
It's possible that the battery pack reached a critical or short circuit condition, and BMS protection fuses. Check the battery voltage and make sure it's above the danger levels for li ion