Non-aqueous electrolyte battery with gas adsorbing carbon material

Abstract

A non-aqueous electrolyte battery in which swelling of a film-shaped exterior material is suppressed. A gas adsorbing carbon material added to an anode mixture layer of an anode and/or to a cathode mixture layer of a cathode adsorbs gas generated in the battery to suppress gas storage in the battery.

What is claimed is: 
     
         1 . A non-aqueous electrolyte battery comprising:
 an anode having an anode mixture containing an anode active material;   a cathode having a cathode mixture containing a cathode active material;   a separator between the anode and the cathode;   an electrolyte including a polymer material and an electrolyte salt contained therein;   a film-shaped exterior material housing therein the anode, the cathode, the separator and the electrolyte; and   a gas adsorbing carbon layer on an inner surface of the film-shaped exterior material.   
     
     
         2 . The non-aqueous electrolyte battery of  claim 1 , wherein the gas adsorbing carbon material comprises a carbonaceous material having a specific surface area not less than 30 m 2 /g. 
     
     
         3 . The non-aqueous electrolyte batter of  claim 2 , wherein said gas adsorbing carbon material is present in said anode mixture, said cathode mixture or both. 
     
     
         4 . The non-aqueous electrolyte battery of  claim 2 , wherein said carbonaceous material is composed of carbon black, activated carbon or both. 
     
     
         5 . The non-aqueous electrolyte battery of  claim 3 , wherein said carbonaceous material comprises carbon black, activated carbon or both. 
     
     
         6 . The non-aqueous electrolyte battery of  claim 3 , wherein said gas adsorbing carbon material is present in said anode mixture in an amount not less than 0.1 wt % and not larger than 6 wt % of the total weight of the anode mixture. 
     
     
         7 . The non-aqueous electrolyte battery of  claim 3 , wherein said gas adsorbing carbon material is present in said cathode mixture in an amount not less than 0.2 wt % and not larger than 8 wt % of the total weight of the cathode mixture. 
     
     
         8 . The non-aqueous electrolyte of  claim 7 , wherein said gas adsorbing carbon material present in said cathode mixture comprises activated carbon. 
     
     
         9 . The non-aqueous electrolyte battery of  claim 3 , wherein said gas adsorbing carbon material is present in said cathode mixture in an amount not less than 0.2 wt % and not larger than 4 wt % of the total weight of the cathode mixture. 
     
     
         10 . The non-aqueous electrolyte battery of  claim 9 , wherein said gas adsorbing carbon material present in said cathode mixture comprises carbon black. 
     
     
         11 . The non-aqueous electrolyte battery of  claim 1 , wherein said film-shaped exterior material is a laminate film comprises at least a metal layer and a resin layer. 
     
     
         12 . The non-aqueous electrolyte battery according to  claim 1 , wherein said solid electrolyte is a gel electrolyte including a non-aqueous solvent, contained in said organic high polymer material, in addition to said electrolyte salt.