The present invention relates to a thickness variation separator capable of varying the thickness of the separator of a lead-acid battery, and more particularly, by forming wing-shaped protrusions at regular intervals on the separator to flexibly change the thickness, when changing the internal specifications of the electrode plate It relates to a thickness variation separator capable of changing the thickness of a lead-acid battery separator capable of continuously performing a process without requiring replacement of the separator. Through the present invention, by forming wing-shaped protrusions at regular intervals on the separator so that the thickness can be changed flexibly, even when the internal specifications of the electrode plate are changed, the process can be continuously performed without the need for replacing the separator. do.
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