Hybrid lscfp-based electrode and manufacturing method thereof

Abstract

A hybrid LSCFP-based electrode includes an electrode having porous pores formed between a plurality of nanofibers and pulverized nanofibers positioned within the porous pores, to solve the contact problem at a solid electrolyte interface, thereby providing excellent characteristics of electrolytic performance and stability at high temperatures, and providing a method for manufacturing a hybrid LSCFP-based electrode by a simple method.

What is claimed is: 
     
         1 . A hybrid LSCFP-based electrode, comprising:
 an electrode having porous pores defined between a plurality of nanofibers; and   pulverized nanofibers positioned within the porous pores.   
     
     
         2 . The hybrid LSCFP-based electrode of  claim 1 , wherein the plurality of nanofibers have nanofibers represented by chemical formula 1:
   La 1-x Sr x Co 1-y-z Fe y Pd z O 3-δ   [Chemical formula 1]
   wherein   the x is a value including 0.3<x<0.5,   the y is a value including 0.7<y<0.9,   the z is a value including 0<z≤0.05, and   the δ is a value including 0≤δ<3.   
     
     
         3 . The hybrid LSCFP-based electrode of  claim 1 , wherein a length of the pulverized nanofibers ranges from 500 nm to 1 μm. 
     
     
         4 . The hybrid LSCFP-based electrode of  claim 1 , wherein a mass ratio of the plurality of nanofibers and the pulverized nanofibers ranges from 7:3 to 3:7. 
     
     
         5 . The hybrid LSCFP-based electrode of  claim 1 , wherein the hybrid LSCFP-based electrode includes nano metal particles containing cobalt (Co) positioned on at least one surface of the nanofibers. 
     
     
         6 . A method for manufacturing a hybrid LSCFP-based electrode, the method comprising:
 manufacturing a nanofiber material by calcining nanofibers;   manufacturing a pulverized nanofiber material by pulverizing a portion of the nanofiber material;   manufacturing a mixture by mixing the nanofiber material and the pulverized nanofiber material; and   manufacturing a nanofiber electrode by applying and sintering the mixture.   
     
     
         7 . The method of  claim 6 , wherein the nanofibers comprise at least one selected from a group consisting of lanthanum (La), strontium (Sr), cobalt (Co), iron (Fe), and palladium (Pd). 
     
     
         8 . The method of  claim 6 , wherein the manufacturing the pulverized nanofiber material comprises using at least one of mortar or ball milling. 
     
     
         9 . The method of  claim 6 , wherein a mass ratio of the nanofiber material and the pulverized nanofiber material in the mixture varies between 7:3 and 3:7. 
     
     
         10 . The method of  claim 6 , wherein the manufacturing the nanofiber material includes calcining nanofibers at temperatures between 900° C. and 1100° C.