Method for producing electrodes

Abstract

The invention relates to a method for producing an electrode, in particular a negative electrode, of an electrochemical cell having a metal substrate, wherein the method includes the steps of treating the metal substrate with UV irradiation and treating the metal substrate using an organic acid.

1 - 8 . (canceled) 
     
     
         9 . A method for producing an electrode, in particular a negative electrode of an electrochemical cell, comprising a metallic substrate, wherein said electrode comprises at least one metallic substrate and at least one electrochemically active material, the method comprising:
 treating the metallic substrate by UV-irradiation;   treating the metallic substrate with an organic acid, wherein the surface of the metallic substrate is treated with an organic acid, in particular is cleaned at least partly, with a time difference in regard to the application of the electrochemically active material.   
     
     
         10 . The method according to  claim 9 , wherein the metallic substrate comprises copper. 
     
     
         11 . The method according to  claim 9 , wherein the UV-irradiation of the metallic substrate is performed either before or after, or before and after, the treatment of the metallic substrate with an organic acid. 
     
     
         12 . The method according to  claim 9 , wherein the organic acid is comprised of water-free oxalic acid. 
     
     
         13 . The method according to  claim 12 , wherein the oxalic acid is dissolved in anhydrous NMP. 
     
     
         14 . The method according to  claim 9 , wherein the treatment of the metallic substrate with an organic acid is performed 30 to 40 minutes prior to coating of the metallic substrate with an electrochemically active material. 
     
     
         15 . The method according to  claim 14 , wherein the electrochemically active material is treated with ultraviolet irradiation. 
     
     
         16 . A method for cleaning a metallic substrate of an electrode, in particular a negative electrode of an electrochemical cell, the method comprising:
 treating the metallic substrate with UV radiation; and   treating the metallic substrate with an organic acid.