METHOD FOR FORMING POSITIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY

摘要

PURPOSE: A manufacturing method of a positive electrode for a lithium ion secondary provides a positive electrode for a lithium ion secondary battery which has a large amount of charging of a positive electrode active material, wherein a positive electrode active material layer is highly densed. CONSTITUTION: A manufacturing method of a positive electrode(100) comprises the following steps of: dispersing a graphene oxide(104) into a solvent; adding a positive electrode active material(103) in the graphene oxide-containing solvent to form a mixture containing the graphene oxide and the positive electrode active material; adding a hinder to the mixture to form a positive electrode paste; coating the positive electrode paste on a positive electrode current collector; and reducing at least a part of the graphene oxide to graphene in the positive electrode active amterial by forming a positive electrode active material layer(102) on the positive electrode current collector by drying the positive electrode paste.