METHOD OF MANUFACTURING ELECTRODE PLATE FOR SECONDARY BATTERY, ELECTRODE PLATE FOR SECONDARY BATTERY AND SECONDARY BATTERY MANUFACTURED USING THE SAME

摘要

PURPOSE: A manufacturing method of an electrode plate is provided to be able to reduce the manufacturing cost of an electrode plate by minimizing the amount of the discarded uncoated portion, and to obtain a unit electrode plate in which mutually different active materials are applied from a single source electrode plate. CONSTITUTION: A manufacturing method of an electronic plate comprises (a) a step of preparing a metal sheet (M1); (b) a step of forming a source electrode plate (P1) by coating an active material pattern on at least one side of the metal sheet so that at least two uncoated lines (E1,E2) located between active material lines (A1-A4) are formed; and (c) a step of forming multiple unit electrode plates by cutting the source electrode plate so that each electrode tap (112-142) of unit electrode plates (110-140) facing each other is aligned alternately along the uncoated lines. Any one of the active material lines includes an active material having different composition from at least one among the others.