7 posts • Page 1 of 1
A battery is dead when the system is at equilibrium. This occurs when there is a buildup of charge in the cathode and the anode, so there will no longer be any flow of charge. This can be avoided by having something like a porous disk to maintain a neutral state in the anode and cathode.
For a galvanic cell, a battery is also dead when you run of out metal in the anode. If Zn has to give off 2 electrons to become Zn2+ to power the battery, then your battery will die when you run out of Zn metal, since all you are left with is Zn2+ ion.
Who is online
Users browsing this forum: No registered users and 1 guest