Capacitive element including a separator including projections preventing the removal thereof

摘要

The element has positive and negative complexes (26, 30) comprising positive and negative electrodes (31, 33), where the complexes are superimposed. Electrically insulating separators (28), made of porous plastic material, are interposed between the complexes. One of the separators has two protuberances (36A, 36B) located in the vicinity of an end of the separator according to a direction normal to a superposition direction (D). Each of the protuberances is formed by clusters of re-melted plastic material of the separator. An independent claim is also included for a method for manufacturing a capacitive element.