Batch to execute 7zip to create a zip with password and put date into filename

I’ve installed Z-zip on my system and created a .batch file like this, that allows me to create a zip file protected by password:

@echo off  C:\Program Files-Zipz a -r -pZampa “%DATE:/"  TPV.accde  pause 

This code is barely perfect, but something is wrong, as system shows a screen with an error like this:

 "Can't recognize as a code" 

Any idea of what could be going wrong?