METHOD TO EXECUTE A WELD OF AN ELECTRODE OF A CELL WHICH IS PART OF A BATTERY

A method to execute a weld of an electrode (3) of a cell (2) which is part of a battery (1) and having the steps of: causing the electrode (3) to come into contact with another element to which the electrode (3) must be welded; locally heating the electrode (3) and the other element so as to locally cause a melting of the metal making up the electrode (3) and of the metal making up the other element in order to generate a weld pool (10); waiting for the weld pool (10) to cool down, thus giving stability to the weld; capturing, by means of a video camera (11), a series of digital images of the weld pool (10) during the heating; analysing the digital images in order to determine a value of at least one parameter of the welding process; and changing the execution of the melting process based on the value of the parameter.