METHOD AND APPARATUS FOR IMPLEMENTING A CHANGE OF COIL OF ELECTRODE WEB FOR THE PRODUCTION OF ELECTROCHEMICAL CELLS

• Main Authors: ESPOSTI, Marco, RIZZO, Gennaro
• Format: Patent
• Language: English; French; German
• Published: 11.09.2024
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

The present invention concerns an apparatus for implementing a coil of electrode web change for the production of electrochemical cells comprising:- a first retaining device (21) configured to retain a first piece of electrode web (s1) of a first electrode web (f1);- a second retaining device (31) configured to retain a second piece of electrode web (s2) of a second electrode web (f2);- a cutting mechanism (40) comprising a cutting device (90) configured to* cut the first piece of electrode web (s1) to define a first free end (l1) of a second portion (s1b) of the first piece of electrode web (s1), and* cut the second piece of electrode web (s2) to define a second free end (l2) of a first portion (s1a) of the second piece of electrode web (s2);- at least one first movement device (3; 5) active on at least one of the first retaining device (21) and the second retaining device (31), the at least one first movement device (3; 5) being configured to move the first and second retaining device in mutual approach to bring the first free end (l1) of the second portion (s1b) of the first piece of electrode web (s1) into reciprocal alignment with the second free end (l2) of the first portion (s2a) of the second piece of electrode web (s2) by positioning the first free end (l1) at the second free end (l2), and- a joining device (60) configured to join the first portion (s2a) of the second piece of electrode web (s2) with the second portion (s1b) of the first piece of electrode web (s1) at the first and second free end (l1, l2).The present invention also relates to a method for implementing a coil of electrode web change for the production of electrochemical cells.