Secondary battery electrode, and method for producing same
摘要
說明書
In a specific example, the method of producing an electrode for a secondary battery may further include a bulk production step of using a raw material including a particulate electrode active material to produce an active material bulk, before the slicing. That is, the method of producing an electrode for a secondary battery according to an exemplary embodiment of the present invention may include a) using a raw material including a particulate electrode active material to produce an active material bulk (bulk production step); b) slicing the active material bulk to produce an active material film (cutting step); and c) integrating a current collector and the active material film (binding step).
In a specific example, the active material bulk may be a molded body or a sintered body. Thus, when the active material bulk is a molded body, step a) may include a molding step of compression-molding a raw material to produce a molded body. Otherwise, when the active material bulk is a sintered body, step a) may include a molding step of compression-molding a raw material to produce a molded body; and heat-treating the molded body produced in the molding step to produce a sintered body.
As described above, in the method of producing an electrode according to the present invention, a raw material including a particulate electrode active material is used to produce an active material bulk, the active material bulk is sliced to produce an active material film corresponding to an active material layer on a current collector in a conventional slurry-based process, and the active material film produced independently of the current collector is bound to the current collector, thereby producing an electrode, rather than using the conventional slurry-based process in which a slurry containing an active mater tall is applied on a current collector and rolled.
