Miniature fuel cell core

Abstract

A fuel cell with an assembly having a solidified membrane with two collectors incorporated, face to face, in the membrane, and two rigid covers between which the assembly is inserted. The rigid covers are provided with connecting end pieces and provide spaces on either side of the assembly. The assembly is produced by providing two identical subassemblies each including a substrate and a current collector removably arranged thereon, depositing an ionic liquid or pasty polymerizable membrane on at least one of the subassemblies in such a way that the collector thereof is completely covered, applying the subassemblies one against the other, and detaching the two substrates from the collectors after the polymerizable membrane has solidified, so as to obtain the assembly.

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         12 . A fuel cell comprising an assembly comprising a solidified membrane with two collectors incorporated, face to face, in said membrane, and two rigid covers between which said assembly is inserted, said rigid covers being provided with connecting end pieces and providing spaces either side of said assembly, wherein said assembly has been produced by the following operations in sequence:
 providing two substantially identical subassemblies each formed of a substrate and a current collector positioned on it in a detachable manner,   depositing a polymerizable ionic membrane in a liquid or pasty state on at least one of said subassemblies so as to cover its collector completely,   applying said two subassemblies one against the other,   detaching said two substrates from said collectors after said polymerizable membrane has solidified, so as to obtain said assembly.   
     
     
         13 . The fuel cell according to  claim 12 , wherein said spaces are spaces for reagents. 
     
     
         14 . The fuel cell according to  claim 12 , wherein said covers also serve as supports for electrical contacts connecting said two collectors to the outside. 
     
     
         15 . The fuel cell according to  claim 13 , wherein said covers also serve as supports for electrical contacts connecting said two collectors to the outside. 
     
     
         16 . The fuel cell according to  claim 12 , wherein said collectors have a mushroom or harpoon profile. 
     
     
         17 . The fuel cell according to  claim 13 , wherein said collectors have a mushroom or harpoon profile. 
     
     
         18 . The fuel cell according to  claim 14 , wherein said collectors have a mushroom or harpoon profile. 
     
     
         19 . The fuel cell according to  claim 15 , wherein said collectors have a mushroom or harpoon profile. 
     
     
         20 . The fuel cell according to  claim 12 , further comprising a catalyst layer deposited on said collectors. 
     
     
         21 . The fuel cell according to  claim 13 , further comprising a catalyst layer deposited on said collectors. 
     
     
         22 . The fuel cell according to  claim 14 , further comprising a catalyst layer deposited on said collectors. 
     
     
         23 . The fuel cell according to  claim 15 , further comprising a catalyst layer deposited on said collectors. 
     
     
         24 . The fuel cell according to  claim 16 , further comprising a catalyst layer deposited on said collectors. 
     
     
         25 . The fuel cell according to  claim 17 , further comprising a catalyst layer deposited on said collectors. 
     
     
         26 . The fuel cell according to  claim 18 , further comprising a catalyst layer deposited on said collectors. 
     
     
         27 . The fuel cell according to  claim 19 , further comprising a catalyst layer deposited on said collectors. 
     
     
         28 . The fuel cell according to  claim 12 , wherein said collectors were formed in situ on said substrates. 
     
     
         29 . The fuel cell according to  claim 12 , wherein said collectors were formed separately and then added to said substrates. 
     
     
         30 . The fuel cell according to  claim 12 , wherein said polymerizable membrane was deposited on each of said two subassemblies. 
     
     
         31 . The fuel cell according to  claim 12 , wherein said polymerizable membrane was deposited on only one of said two subassemblies.