You could use tantalum here but they are expensive and a fire hazard.
Batteries have positive and negative terminals, but I've also never heard of them referred to as the anode and cathode terminals.
Just out of curiosity, what happens, or what could happen, if the regulator asks for one, and I put a regular ceramic in place?
put the thing to test resistance, touched the leads together and it gives me positive values! WTF? What a POS!