Dry manufacturing process for electrodes and associated assembly

Abstract

The invention relates to a dry manufacturing process for electrodes for battery cells, the process comprising at least: (i) a step of preparing a dry powder of active electrode material within equipment (1) comprising mixing means (3) and a reservoir (2), the step consisting of mixing dry particles of active electrode material and dry particles of binder material; (ii) a calendering step for obtaining a film of active electrode material from the dry powder of active material; and, (iii) a step of producing the electrode from the film thus obtained, in which the preparation step comprises a series of two substeps following each other alternately: a first substep of rotating the mixing means relative to the reservoir in a counterclockwise direction;and, a second sub-step of rotating the mixing means relative to the reservoir in a clockwise direction. (Fig. 1);