Electrochemical Cell And Manufacturing Method Thereof

The utility model provides an electromechanical cell which is restrained from being pleated by hot melting. A manufacturing method of the electrochemical cell comprises a configuration procedure of overlapping a first sheet part (8) having a first opening (8a) with a long length direction and a second sheet part (90 having a second opening (9a) and configuring an electrode body (2) having a positive pole and a negative pole between the first sheet part and the second sheet part; and comprises an enclosing procedure of enclosing the electrode body between the first sheet part and the second sheet part. The configuration procedure comprises: a first pin is inserted through the first opening and the second opening; fixing the relative position of the first sheet part and the second sheet part in the short length direction crossed with the long length direction in the position of the first pin; and allowing the relative position of the first sheet part and the second sheet part in the long length direction to be