Electrochemical oxygen separator cell

Abstract

An electrochemical oxygen separator cell including an electrode based on lanthanum strontium manganese oxide or lanthanum strontium cobalt iron oxide; and an electrolyte membrane of doped ceria.

1 - 12 . (canceled)  
     
     
         13 . An electrochemical oxygen separator cell comprising: 
 a cathode comprising a material selected from lanthanum strontium manganese oxide/doped ceria in a ratio of 85:15 to 75:25 by weight; and lanthanum strontium cobalt iron oxide;    an electrolyte membrane comprising ceria doped from 15 to 25% by mole; and    an anode comprising a material selected from lanthanum strontium manganese oxide/doped ceria in a ratio of about 85:15 to about 75:25 by weight; and lanthanum strontium cobalt iron oxide.    
     
     
         14 . The electrochemical oxygen separator cell according to  claim 13 , wherein the ceria is doped with an oxide selected from gadolinia and samaria.  
     
     
         15 . The electrochemical oxygen separator cell according to  claim 13 , wherein the ceria is doped at 20% by mole.  
     
     
         16 . The electrochemical oxygen separator cell according to  claim 13 , wherein the doped ceria of the electrolyte membrane is Ce 0.8 Gd 0.2 O 1.90 .  
     
     
         17 . The electrochemical oxygen separator cell according to  claim 13 , wherein the lanthanum strontium manganese oxide/doped ceria ratio is 80:20 to 70:30 by weight.  
     
     
         18 . The electrochemical oxygen separator cell according to  claim 13 , wherein the lanthanum strontium manganese oxide is La 0.8 Sr 0.2 MnO 3 .  
     
     
         19 . The electrochemical oxygen separator cell according to  claim 13 , wherein the cathode or anode or both comprises lanthanum strontium cobalt iron oxide.  
     
     
         20 . The electrochemical oxygen separator cell according to  claim 19 , wherein the lanthanum strontium cobalt iron oxide La 0.6 Sr 0.4 Fe 0.8 Co 0.2 O 3 .  
     
     
         21 . The electrochemical oxygen separator cell according to  claim 13 , wherein the lanthanum strontium cobalt iron oxide is added with doped ceria.  
     
     
         22 . The electrochemical oxygen separator cell according to  claim 13 , wherein at least one of the cathode and the anode is thicker than the electrolyte membrane.  
     
     
         23 . The electrochemical oxygen separator cell according to  claim 22 , wherein the anode is thicker than the electrolyte membrane.  
     
     
         24 . An apparatus comprising an electrochemical oxygen separator cell as described in any one of claims  13 - 23 .