Apparatus for cutting separator

A separator cutting apparatus of a lamination process of stacking an electrode assembly, the separator cutting apparatus comprising:

• a fixing part configured to temporarily fix the electrode assembly;
• a cutter supporting part disposed above the fixing part;
• a cutter part disposed below the cutter supporting part and above the fixing part, the cutter part configured to cut a separator of the electrode assembly on the fixing part;
• and
• a spring part elastically connecting the cutter supporting part and the cutter part to each other, the spring part configured to return the cutter part to an initial position after cutting the separator,
• wherein the spring part includes two spring bushes coupled to a supporting shaft extending from the cutter supporting part and a supporting shaft extending from the cutter part, respectively, two spring holders coupled to the two spring bushes, respectively, and a spring having two opposite ends coupled to the two spring holders, respectively, the spring configured to expand and contract according to an elevation of the cutter part relative to the cutter supporting part, and the spring holders and the spring bushes are each made of a non-metallic material.