Patent ID: 8877025
Filing Date: 2014-11-04
Classification: G01N,H01M,Y02E

Abstract:
1. An electrochemical test cell, comprising: an anode comprising a metal as an active component; a reference electrode comprising the same metal as the anode; an electrolyte; and a cathode; the cathode comprising: a hollow tube with a closed tip; an active material comprising elemental sulfur compatible with the metal of the anode within the tube at the tip; and a working electrode above the tip in contact with the active material and not in contact with the electrolyte; wherein at least the tip of the cathode is in contact with the electrolyte, the tube of the cathode consists of a material which is chemically inert to the electrolyte and is electrically nonconductive, the closed tip of the cathode is porous or the tip comprises an opening, and the only metal in contact with the electrolyte is the metal of the anode and the reference electrode.