Silver-Silver Chloride Electrode And Electrical Circuit

Abstract

A silver-silver chloride electrode contains silicone rubber as a binder in which silver powder, silver chloride powder and silica powder are dispersed. A current density of a current flowing through an electric circuit is equal to or greater than 0.64 μA/mm2 after 5 minutes from the beginning of voltage application to the electric circuit when the electric circuit in which two silver-silver chloride electrodes and a phosphate buffered saline are connected in series is made up of the two silver-silver chloride electrodes and the phosphate buffered saline containing no calcium and no magnesium interposed between the two silver-silver chloride electrodes.

What is claimed is: 
     
         1 . A method for producing a silver-silver chloride electrode, comprising:
 simultaneously pulverizing silver chloride powder and silica powder;   mixing the pulverized silver chloride powder and silica powder to produce a mixture of the silver chloride powder and silica powder;   mixing the mixture of the silver chloride powder and silica powder, silver powder, and a dispersant with a liquid silicone rubber binder to produce a paste;   coating the paste on a substrate made of silicone rubber; and   curing the paste on the substrate to form an electrode containing silver and silver chloride.   
     
     
         2 . The method according to  claim 1 , further comprising passing the mixture of the silver chloride powder and silica powder through a 0.20 mm-mesh screen before producing the paste. 
     
     
         3 . The method according to  claim 1 , wherein the silica powder is a hydrophilic fumed silica powder.