Graphene oxide, positive electrode for nonaqueous secondary battery using graphene oxide, method of manufacturing positive electrode for nonaqueous secondary battery, nonaqueous secondary battery, and electronic device

Abstract

A graphene oxide used as a raw material of a conductive additive for forming an active material layer with high electron conductivity with a small amount of a conductive additive is provided. A positive electrode for a nonaqueous secondary battery using the graphene oxide as a conductive additive is provided. The graphene oxide is used as a raw material of a conductive additive in a positive electrode for a nonaqueous secondary battery and, in the graphene oxide, the atomic ratio of oxygen to carbon is greater than or equal to 0.405.

1 . (canceled) 
     
     
         2 . A method for manufacturing a lithium ion secondary battery, comprising the steps of:
 immersing a positive electrode, a separator and a negative electrode in an electrolytic solution;   stacking a positive electrode can, the positive electrode, the separator, the negative electrode and a negative electrode can in this order; and   performing pressure bonding on the positive electrode can and the negative electrode can with a gasket interposed between the positive electrode can and the negative electrode can.